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| 1 | Chemically exfoliated metallic MoS2 nanosheets: A promising supporting co-catalyst for enhancing the photocatalytic performance of TiO2 nanocrystals显示文摘电子洞分离是到完成有效光催化,合作催化剂的使用向成为了广泛地使用的策略的关键步。当设计划算的、高效的混合光催化剂时,尽管有巨大的努力和高贵金属合作催化剂的表明的功能,寻求高贵没有金属的合作催化剂将总是是目标。在这个工作,我们证明瞬间 < 潜水艇 class= “ a-plus-plus ” > 有 1T 阶段的 2 nanosheets (即,八面的阶段) 能与多重优点作为合作催化剂工作:(1 ) Noble-metal-free;(2 ) 为充电的高活动性运输;(3 ) 为 H 的活跃地点的高密度 < 潜水艇 class= “ a-plus-plus ” > 基础飞机上的 2 进化;(4 ) 好表演稳定性;(5 ) 高点亮透明性。是在两 photocatalytic 氢生产和玫瑰精 B 降级示威了,有 TiO 的发达混合结构<潜水艇class=“ a-plus-plus ”> 2 展出优秀性能,在到赤裸的 TiO 的鲜明对比<潜水艇class=“ a-plus-plus ”>有2H瞬间的 2 和混合对应物<潜水艇class=“ a-plus-plus ”> 2 。 | Song Bai Limin Wang Xiaoyi Chen Junteng Du Yujie Xiong | 2015 | Nano Research2015，8，1： | 19 |
| 2 | Pd-Ag alloy hollow nanostructures with interatomic charge polarization for enhanced electrocatalytic formic acid oxidation显示文摘蚁的酸氧化是在膜(PEM ) 燃料细胞,活跃地点和种吸附 / 激活在玩调音的 protonexchange 的重要 electrocatalytic 反应角色。在这研究,我们为申请与高活跃的表面区域开发了空 Pd-Ag 合金 nanostructures 到 electrocatalytic 蚁的酸氧化。当 Ag 的某个数量被合并到 Pd 时格子,已经是为蚁的酸氧化的高度活跃的材料, electrocatalytic 活动能显著地被增加。是由理论模拟显示了,在 Pd 和 Ag 之间联合在 Pd 催化地点上导致极化费用,它能提高 HCOO 的吸附 * 种类。作为结果,设计 electrocatalysts 能完成减少的 Pd 用法并且同时提高催化性质。这研究代表同时制作空结构增加活跃地点的数字并且利用 interatomic 相互作用向改进 electrocatalytic 性能调节种类吸附 / 激活的一条途径。 | Dong Liu Maolin Xie Chengming wang Lingwen Liao Lu Qiu Jun Ma Hao Huang Ran Long Jun Jiang Yujie Xiong | 2016 | Nano Research2016，9，6： | 11 |
| 3 | N-doped carbon-stabilized PtCo nanoparticles derived from Pt@ZIF-67: Highly active and durable catalysts for oxygen reduction reaction显示文摘The development of catalysts with high activity and durability for the cathodicoxygen reduction reaction (ORR) in both alkaline and acidic media is importantfor improving the performance of the proton exchange membrane (PEM) fuelcells. This can be achieved by dispersing Pt-based alloy nanoparticles insideN-doped porous carbon frameworks. However, it still requires the developmentof a facile method towards synthesizing this unique hybrid structure. In this work,we demonstrate that N-doped carbon-stabilized PtCo nanoparticles (PtCo@NC)can be facilely synthesized via thermal decomposition of Pt-incorporatedCo-based zeolitic imidazolate framework (Pt@ZIF-67). The thickness of the carbonframework can be optimized to enable excellent durability, in sharp contrastto a commercial Pt/C catalyst. The mass activities achieved by optimizing thethickness of the carbon framework are 0.80 and 0.82 A-mg^-1, at 0.9 V vs. RHE inalkaline and acidic electrolytes, respectively, which are nearly 8 times greaterthan those of the Pt/C. This work provides an alternative approach to low-costand high-verformance catalvsts for both alkaline and acidic fuel cells. | Nana Du Chengming Wang Ran Long Yujie Xiong | 2017 | Nano Research2017，10，9： | 8 |
| 4 | Scalable volumetric imaging for ultrahigh-speed brain mapping at synaptic resolution显示文摘The speed of high-resolution optical imaging has been a rate-limiting factor for meso-scale mapping of brain structures and functional circuits,which is of fundamental importance for neuroscience research.Here,we describe a new microscopy method of Volumetric Imaging with Synchronized on-the-fly-scan and Readout(VISo R)for high-throughput,high-quality brain mapping.Combining synchronized scanning beam illumination and oblique imaging over cleared tissue sections in smooth motion,the VISo R system effectively eliminates motion blur to obtain undistorted images.By continuously imaging moving samples without stopping,the system achieves high-speed 3D image acquisition of an entire mouse brain within1.5 hours,at a resolution capable of visualizing synaptic spines.A pipeline is developed for sample preparation,imaging,3D image reconstruction and quantification.Our approach is compatible with immunofluorescence methods,enabling flexible cell-type specific brain mapping and is readily scalable for large biological samples such as primate brains.Using this system,we examined behaviorally relevant whole-brain neuronal activation in 16 c-Fos-sh EGFP mice under resting or forced swimming conditions.Our results indicate the involvement of multiple subcortical areas in stress response.Intriguingly,neuronal activation in these areas exhibits striking individual variability among different animals,suggesting the necessity of sufficient cohort size for such studies. | Hao Wang Qingyuan Zhu Lufeng Ding Yan Shen Chao-Yu Yang Fang Xu Chang Shu Yujie Guo Zhiwei Xiong Qinghong Shan Fan Jia Peng Su Qian-Ru Yang Bing Li Yuxiao Cheng Xiaobin He Xi Chen Feng Wu Jiang-Ning Zhou Fuqiang Xu Hua Han Pak-Ming Lau Guo-Qiang Bi | 2019 | National Science Review2019，6，5： | 7 |
| 5 | Defect engineering: A versatile tool for tuning the activation of key molecules in photocatalytic reactions显示文摘Many photocatalytic reactions such as CO2 reduction and N2 fixation are often limited by the activation of some key molecules. Defects in solid materials can robustly introduce coordinately unsaturated sites to serve as highly active sites for molecular chemisorption and activation. As a result, rational defect engineering has endowed a versatile approach to further develop photocatalytic applications beyond water splitting. The subtly designed defects in photocatalysts can play critical and decisive roles in molecular activation as proven in recent years. The defects cannot only serve as active sites for molecular chemisorption, but also spatially supply channels for energy and electron transfer. In this review, we aim to summarize the diversiform photocatalytic applications using defects as active sites, including but not limited to CO2 reduction, O2 activation,H2O dissociation, N2 fixation as well as activation of other molecules. In particular, we emphatically outline how the parameters of defects (e.g.,concentration,location,geometric and electronic structures) can serve as the knobs for maneuvering molecular adsorption and activation as well as altering subsequent reaction pathway. Moreover, we underline the remaining challenges at the current stage and the potential development in the future.It is anticipated that this review consolidates the in-depth understanding towards the structure-activity relationship between defects and related reactions. | Ning Zhang Chao Gao Yujie Xiong | 2019 | Journal of Energy Chemistry2019，28，10： | 6 |
| 6 | 2020 roadmap on pore materials for energy and environmental applications显示文摘Porous materials have attracted great attention in energy and environment applications,such as metal organic frameworks(MOFs),metal aerogels,carbon aerogels,porous metal oxides.These materials could be also hybridized with other materials into functional composites with superior properties.The high specific area of porous materials offer them the advantage as hosts to conduct catalytic and electrochemical reactions.On one hand,catalytic reactions include photocatalytic,p ho toe lectrocatalytic and electrocatalytic reactions over some gases.On the other hand,they can be used as electrodes in various batteries,such as alkaline metal ion batteries and electrochemical capacitors.So far,both catalysis and batteries are extremely attractive topics.There are also many obstacles to overcome in the exploration of these porous materials.The research related to porous materials for energy and environment applications is at extremely active stage,and this has motivated us to contribute with a roadmap on ’porous materials for energy and environment applications’. | Zengxi Wei Bing Ding Hui Dou Jorge Gascon Xiang-Jian Kong Yujie Xiong Bin Cai Ruiyang Zhang Ying Zhou Mingce Long Jie Miao Yuhai Dou Ding Yuan Jianmin Ma | 2019 | Chinese Chemical Letters2019，30，12： | 5 |
| 7 | Towards full-spectrum photocatalysis: Achieving a Z-scheme between Ag2S and TiO2 by engineering energy band alignment with interfacial Ag显示文摘Z 计划是一条有希望的途径完成用途广泛的光催化。有有 1.0 eV 的乐队差距的另一个半导体的 TiO 2 的集成将对紫外的收获和在可见附近理想为光催化的红外线的光;然而,大多数 narrow-bandgap 半导体让与组成一个障碍到为 photocatalytic 氢生产形成 Z 计划的 TiO 2, 跨骑乐队结构排列。在这通讯,我们表明 Ag 2 是的 S 在哪儿的一个模型系统精力乐队分享一个接口,一个金属罐头克服的 narrow-bandgap 半导体换高速档这限制。制作设计,我们开发了一条唯一的途径综合 Ag 2 SAgTiO 2 混血儿结构。戏剧性地展出的获得的第三的混合结构在完整光谱的轻照明下面在 photocatalytic 氢生产提高了性能。这些活动比 Ag 2 SAgTiO 2 结构在下面 < 400 nm 并且 > 他们在任何轻照明下面的对应物的象那些一样的 400 nm 照耀调节。 | Yanrui Li Leilei Li Yunqi Gong Song Bai Huanxin Ju Chengming Wang Qian Xu Junfa Zhu Jun Jiang Yujie Xiong | 2015 | Nano Research2015，8，11： | 5 |
| 8 | Questions about NgAgo显示文摘 | Shawn Burgess Linzhao Cheng Feng Gu Zhiwei Huang Shuo Lin Jinsong Li Wei Li Wei Qin Yujie Sun Zhou Songyang Wensheng Wei Qiang Wu Haoyi Wang Xiaoqun Wang Jing-Wei Xiong Jianzhong Xi Hui Yang Bin Zhou Bo Zhang Junjiu Huang | 2016 | Protein & Cell2016，7，12： | 5 |
| 9 | Hydriding Pd cocatalysts: An approach to giant enhancement on photocatalytic CO2 reduction into CH4显示文摘进高增值 CH 4 的公司 2 的 Photocatalytic 减小是精力和环境危机的一个有希望的解决方案。与 cocatalysts 集成半导体能为 photocatalytic 公司 2 减小改进这些活动;然而,大多数金属 cocatalysts 主要生产公司和 H 2 。此处,我们为显著地提高公司 2 的 photocatalytic 减小进 CH 4 报导一条 cocatalyst hydridation 途径。进 PdH 0.43 的 Hydriding Pd cocatalysts 在表演改进起了一个双作用。是由我们的同位素的标记实验揭示了, PdH 0.43 氢化物 cocatalysts 减少了 H 2 进化,它压制了 H 2 生产并且便于 CO 中介的变换进最后的产品:CH 4 。同时, hydridation 支持了在 cocatalysts 上套住的电子,改进充电分离。这条途径在 Pd 上从 3.2% ~ 63.6% 在 CH 4 生产增加了 photocatalytic 选择 { 100 } 并且从 15.6% ~ 73.4% 在 Pd 上 { 111 } 。结果提供卓见进 photocatalytic 机制研究并且为向 photocatalytic 公司 2 变换设计材料介绍新机会。 | Yuzhen Zhu Chao Gao Song Bai Shuangming Chen Ran Long Li Song Zhengquan Li Yujie Xiong | 2017 | Nano Research2017，10，10： | 5 |
| 10 | Genome-wide profiling of long noncoding RNA expression patterns and CeRNA analysis in mouse cortical neurons infected with different strains of borna disease virus显示文摘Borna disease virus 1(BoDV-1)is neurotropic prototype of Bornaviruses causing neurological diseases and maintaining persistent infection in brain cells of mammalian species.Long non-coding RNA(lncRNA)is transcript of more than 200 nucleotides without proteincoding function regulating various biological processes as proliferation,apoptosis,cell migration and viral infection.However,regulatory of lncRNAs in BoDV-1 infection remains unknown.To identify differential expression profiles and predict functions of lncRNA in BoDV-1 infection,microarray data showed that 3528 lncRNAs and 2661 lncRNAs were differentially expressed in Strain V and Hu-H1 BoDV-infected groups compared with control groups,respectively.Gene Ontology(GO)and pathway analysis suggested that differential lncRNAs may be involved in regulation of metabolic,biological regulation,cellular process,endocytosis,viral infections and cell adhesion processes,cancer in both BoDV-infected strains.ENSMUST00000128469 was found down-regulated in both BoDV-infected groups compared with control groups consistent with microarray(p<0.05).ceRNA analysis indicated possible interaction networks as ENSMUST00000128469/miR-22-5p,miR-206-3p,miR-302b-5p,miR-302c-3p,miR-1a-3p/Igf1.Igf1 was found up-regulated in both BoDV-infected groups compared with control groups(p<0.05).Possible functions of predicted target mRNAs and miRNAs of ENSMUST00000128469 were involved in cell proliferation,transcriptional misregulation and proteoglycan pathways enriched in cancer.lncRNA may be involved in regulation of Hu-H1 inhibited cell proliferation and promoted apoptosis through NF-kB,JNK/MAPK signaling,BCL2 and CDK6/E2F1 pathways different from Strain V.Possible interaction networks as ENSMUST00000128469/miR-22-5p,miR-206-3p,miR-302b-5p,miR-302c-3p,miR-1a-3p/Igf1 may involve in regulation of cell proliferation,apoptosis,and cancer. | Lin Sun Yujie Guo Peng He Xiaoyan Xu Xiong Zhang Haiyang Wang Tian Tang Wei Zhou Ping Xu Peng Xie | 2019 | Genes & Diseases2019，6，2： | 5 |
| 11 | Enhancing the catalytic efficiency of the Heck coupling reaction by forming 5 nm Pd octahedrons using kinetic control显示文摘异构的催化作用通过界面的反应的一个过程发生;因此,表面方面和尺寸控制能增加催化效率。八面的 Pd nanocrystals,围住由 { 111 } 方面,应该是理想的几何形状为哎呀联合反应;然而,综合是挑战性的有用存在帽子代理人技术的相对一致的尺寸分布的 5 nm Pd 八面体。这里,我们把钯用作一个模型系统调查原子增加的动力学怎么能精确用注射泵被控制。作为结果,我们的方法生产了象 5 nm 一样小的 Pd 八面体,它增加了催化效率哎呀当减少使用的催化剂的重量时,联合反应。 | Ran Long Di Wu Yaping Li Yu Bai Chengming Wang Li Song Yujie Xiong | 2015 | Nano Research2015，8，6： | 4 |
| 12 | Control of selectivity in organic synthesis via heterogeneous photocatalysis under visible light显示文摘Organic synthesis driven by heterogeneous catalysis is a central research theme to both fundamental research and industrial production of fine chemicals.However,the employment of stoichiometric strong oxidizing or reducing reagents(e.g.,K_(2)Cr_(2)O_(7) and LiAlH_(4))and harsh reaction conditions(e.g.,high temperature and pressure)always leads to the products of overreaction and other by-product residues(e.g.,salt and acid waste).Thus the poor control of product selectivity and tremendous energy consumption result in the urgent demand to develop novel technologies for heterogeneous catalysis.Given the current global theme of development in CO_(2) reduction and sustainable energy utilization,one promising protocol is heterogeneous photocatalysis.It enables sustainable solar-to-chemical energy conversion under mild conditions(e.g.,room temperature,ambient pressure,and air as the oxidant)and offers unique reaction pathways for improved selectivity control.To accurately tailor the selectivity of desired products,the electronic structure(e.g.,positions of valence-band maximum and conduction-band minimum),geometric structure(e.g.,nanorod,nanosheet,and porous morphology),and surface chemical micro-environment(e.g.,vacancy sites and co-catalysts)of heterogeneous photocatalysts require rational design and construction.In this review,we will briefly analyze some effective photocatalytic systems with the excellent regulation ability of product selectivity in organic transformations(mainly oxidation and reduction types)under visible light irradiation,and put forward opinions on the optimal fabrication of nanostructured photocatalysts to realize selective organic synthesis. | Yitao Dai Yujie Xiong | 2022 | Nano Research Energy2022，1，1： | 3 |
| 13 | Etching approach to hybrid structures of PtPd nanocages and graphene for efficient oxygen reduction reaction catalysts显示文摘Cathodic oxygen reduction reaction (ORR) is a highly important electrochemical reaction in renewable-energy technologies. In general, the surface area, exposed facets and electrical conductivity of catalysts all play important roles in determining their electrocatalytic activities, while their performance durability can be improved by integration with supporting materials. In this work we have developed a method to synthesize hybrid structures between PtPd bimetallic nanocages and graphene by employing selective epitaxial growth of single-crystal Pt shells on Pd nanocubes supported on reduced graphene oxide (rGO), followed by Pd etching. The hollow nature, {100} surface facets and bimetallic composition of PtPd nanocages, together with the good conductivity and stability of graphene, enable high electrocatalytic performance in ORR. The obtained PtPd nanocage-rGO structures exhibit mass activity (0.534 A.m-1) and which are 4.4 times and 3.9 times greater than the specific activity (0.482 mA-cm-2) corresponding values for Pt/C. | Song Bai Chengming Wang Wenya Jiang Nana Du Jing Li Junteng Du Ran Long Zhengquan Li Yujie Xiong | 2015 | Nano Research2015，8，9： | 3 |
| 14 | Crystal phase engineering on photocatalytic materials for energy and environmental applications显示文摘Crystal phase engineering on photocatalytic materials is a subfield of photocatalysis with intensive research,which has been proven as a:versatile approach to maneuver their performance for applications in energy-and environment-related fields.In this article,the state-of-the-art progress on phase-e ngin eered photocatalytic materials is reviewed.Firstly,we discuss the phase engin eeri ng on pristi ne semic on ductor photocatalysts,in which the phase-dependent light absorption,charge transfer and separation,and surface reaction behaviors in photocatalytic processes are summarized,respectively.Based on the elucidated mechanisms,the implementation of phase junctions in photocatalytic reactions is then presented.As a focus,we highlight the rational design of phase junctions toward steering the charge kinetics for enhanced photocatalytic and photoelectrocatalytic performance.Moreover,the crystal phase engineering on semiconductor-based hybrid photocatalysts is also in troduced,which un derli nes the importa nee of choosi ng a suitable phase for semic on ductor comp orients and co-catalysts as well as the synergism of differe nt semico nductor phases for improved photocatalytic performa nee.Fin ally,the challe nges and perspectives in this research field are proposed.In this review,particular emphasis is placed on establishing a linkage between crystal phase and photocatalytic activity to develop a structure-activity guide.Based on the guide,a framework is suggested for future research on the rational phase design of photocatalysts for improved performance in energy and environmental applications. | Song Bai Chao Gao Jingxiang Low Yujie Xiong | 2019 | Nano Research2019，12，9： | 3 |
| 15 | Atomic layer deposition on Pd nanocrystals for forming Pd-TiO_2 interface toward enhanced CO oxidation显示文摘Pd typically exhibits relatively low catalytic activity in CO oxidation, as CO is apt to be adsorbed on Pd to poison the surface for O_2 activation. In this Letter, we report that this limitation can be overcome by integrating Pd withTiO_2 . The TiO_2 was coated on Pd nanocubes with a controllable thickness using atomic layer deposition(ALD) method. Given the different work functions of TiO_2 and Pd, the electrons inTiO_2 semiconductor will flow toward Pd. With the electron density increased on Pd, the adsorption of CO to Pd will be weakened while the oxygen activation can be facilitated. Meanwhile, the interface-confined sites at Pd-TiO_2 may further enhance the oxygen activation. As the species adsorption and activation are strongly correlated with electron density, the performance of Pd-TiO_2 in CO oxidation turns out to depend on the TiO_2 thickness, which determines the number of transferred electrons, within a certain range(<1.8 nm). This work provides a new strategy for enhancing catalytic performance through tailoring charge densities in hybrid catalysts. | Yu Bai Chunlei Wang Xingyi Zhou Junling Lu Yujie Xiong | 2016 | Progress in Natural Science:Materials International2016，26，3： | 2 |
| 16 | Biosynthetic CdS-Thiobacillus thioparus hybrid for solar-driven carbon dioxide fixation显示文摘Synergistically combining biological whole-cell bacteria with man-made semiconductor materials innovates the way for sustainable solar-driven CO_(2)fixation,showing great promise to break through the bottleneck in traditional chemical photocatalyst systems.However,most of the biohybrids require uneconomical organic nutrients and anaerobic conditions for the successful cultivation of the bacteria to sustain the CO_(2)fixation,which severely limits their economic viability and applicability for practical application.Herein,we present an inorganic-biological hybrid system composed of obligate autotrophic bacteria Thiobacillus thioparus(T.thioparus)and CdS nanoparticles(NPs)biologically precipitated on the bacterial surface,which can achieve efficient CO_(2)fixation based entirely on cost-effective inorganic salts and without the restriction of anaerobic conditions.The optimized interface between CdS NPs and T.thioparus formed by biological precipitation plays an essential role for T.thioparus efficiently receiving photogenerated electrons from CdS NPs and thus changing the autotrophic way from chemoautotroph to photoautotroph.As a result,the CdS-T.thioparus biohybrid realizes the solar-driven CO_(2)fixation to produce multi-carbon glutamate synthase and biomass under visible-light irradiation with CO_(2)as the only carbon source.This work provides significant inspiration for the further exploration of the solar-driven self-replicating biocatalytic system to achieve CO_(2)fixation and conversion. | Guangyu Liu Feng Gao Hongwei Zhang Lei Wang Chao Gao Yujie Xiong | 2023 | Nano Research2023，16，4： | 2 |
| 17 | Design of Pd{111}-TiO_2 interface for enhanced catalytic efficiency towards formic acid decomposition显示文摘Supports are commonly implemented in the industrial application of heterogeneous catalysts to improve the stability and recyclability of catalysts.The supported catalysts often show the enhanced activity and selectivity in various catalytic reactions.However,the specific contributions of electronic and steric effects to a catalytic system often remain elusive due to the lack of well-defined model systems.In this work,two types of uniform Pd nanocrystals covered by{111}facets in tetrahedral and octahedral shapes,respectively,are synthesized with identical chemical environment and loaded on Ti O_2supports to form hybrid structures(Pd{111}-Ti O_2)towards the application of formic acid decomposition.Our observation suggests that the polarization effect at the interface of Pd-Ti O_2enhances its activity in formic acid decomposition.Moreover,the Pd tetrahedrons-Ti O_2hybrid structure whose Pd{111}-Ti O_2interface possesses a larger angle shows higher catalytic activity,owing to the reduced steric effect as compared to Pd octahedrons-Ti O_2.This study reveals the nature of interface effects in formic acid decomposition,and provides a guidance for the related catalyst design. | Yang You Hao Huang Song Xia Zijian Cai Panyiming Liu Chengming Wang Ran Long Li Song Yujie Xiong | 2018 | Science China Chemistry2018，61，9： | 2 |
| 18 | Working-in-tandem mechanism of multi-dopants in enhancing electrocatalytic nitrogen reduction reaction performance of carbon- based materials显示文摘Developing carbon-based electrocatalysts with excellent N2 adsorption and activation capability holds the key to achieve highly efficient nitrogen reduction reaction(NRR)for reaching its practical application.Here,we report a highly active electrocatalyst--metal-free pyrrolic-N dominated N,S co-doped carbon(pyrr-NSC)for NRR.Based on theoretical and experimental results,it is confirmed that the N and S-dopants practice a working-in-tandem mechanism on pyrr-NSC,where the N-dopants are utilized to create electropositive C sites for enhancing N2 adsorption and the S-dopants are employed to induce electron backdonation for facilitating N2 activation.The synergistic effect of the pyrrolic-N and S-dopants can also suppress the irritating hydrogen evolution reaction,further boosting the NRR performance.This work gives an indication that the combination of two different dopants on electrocatalyst can enhance NRR performance by working in the two tandem steps-the adsorption and activation of N2 molecules,providing a new strategy for NRR electrocatalyst design. | Wenqing Zhang Keke Mao Jingxiang Low Hengjie Liu Yanan Bo Jun Ma Qiaoxi Liu Yawen Jiang Jiuzhong Yang Yang Pan Zeming Qi Ran Long Li Song Yujie Xiong | 2021 | Nano Research2021，14，9： | 2 |
| 19 | pH-sensitive zwitterionic improves tumor targeting efficacy coating of gold nanocages and photothermal treatment显示文摘 | Ji-Gang Piao Feng Gao Yunong Li Lei Yu Dong Liu Zi-Bin Tan Yujie Xiong Lihua Yang Ye-Zi You | 2018 | Nano Research2018，11，6： | 2 |
| 20 | Atomically dispersed N-coordinated Fe-Fe dual-sites with enhanced enzyme-like activities显示文摘Replacement of enzymes with nanomaterials such as atomically dispersed metal catalysts is one of the most crucial steps in addressing the challenges in biocataiysis.Despite the breakthroughs of single-atom catalysts in enzyme-mimicking,a fundamental investigation on the development of an instructional strategy is still required for mimicking biatomic/multiatomic active sites in natural enzymes and constructing synergistically enhanced metal atom active sites.Herein,Fe_(2)NC catalysts with atomically dispersed Fe-Fe dual-sites supported by the metal-organic frameworks-derived nitrogen-doped carbon are employed as biomimetic catalysts to perform proof-of-concept investigation.The effect of Fe atom number toward typical oxidase(cytochrome C oxidase,NADH oxidase,and ascorbic acid oxidase)and peroxidase(NADH peroxidase and ascorbic acid peroxidase)activities is systematically evaluated by experimental and theoretical investigations.A peroxo-like O_(2) adsorption in Fe_(2)NC nanozymes could accelerate the O-O activation and thus achieve the enhanced enzyme-like activities.This work achieves the vivid simulation of the enzyme active sites and provides the theoretical basis for the design of high-performance nanozymes.As a concept application,a colorimetric biosensor for the detection of S^(2-) in tap water is established based on the inhibition of enzyme-like activity of Fe_(2)NC nanozymes. | Lei Jiao Wei Ye Yikun Kang Yu Zhang Weiqing Xu Yu Wu Wenling Gu Weiyu Song Yujie Xiong Chengzhou Zhu | 2022 | Nano Research2022，15，2： | 1 |
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