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| 1 | Light doping of tungsten into copper-platinum nanoalloys for boosting their electrocatalytic performance in methanol oxidation显示文摘Coupling the bi-functional mechanism with compressive lattice strain might be an effective way to boost the electrocatalysis of platinum(Pt)-based nanoparticles for methanol oxidation reaction(MOR).This strategy weakens the chemisorption of poisoning CO-like intermediates generated during MOR on the active Pt sites by lowering their d-band center.In this context,we herein report the synthesis of ternary copper-tungsten-platinum(CuWPt)nanoalloys with light doping of W element by simply co-reducing their precursors at elevated temperature.In this ternary alloy system,the presence of only small amount of W element not only weakens the chemisorption of CO-like intermediates by lowering the Pt d-band center through compressive lattice strain,but also cleans the active Pt sites by“hydrogen spillover effect”,endowing the as-prepared CuWPt nanoalloys at an appropriate Cu/W/Pt ratio with good activity for MOR.In specific,the ternary CuWPt alloy nanoparticles at a Cu/W/Pt molar ratio of 21/4/75 show a specific activity of 2.5 mA·cm^(−2)and a mass activity of 2.11 A·mg^(−1)with a better durability,outperforming those ternary CuWPt alloy nanoparticles at other Cu/W/Pt ratios,binary CuPt alloys and commercial Pt/C catalyst as well as a large number of reported Pt-based electrocatalysts.In addition,a single direct methanol fuel cell(DMFC)assembled using ternary CuWPt nanoalloys as anodic catalysts shows a power density of 24.3 mW·cm^(−2)and an open-circle voltage of 0.6 V,also much higher than those of the single DMFC assembled from commercial Pt/C catalysts. | Danye Liu Qing Zeng Chaoquan Hu Dong Chen Hui Liu Yongsheng Han Lin Xu Qingbo Zhang Jun Yang | 2022 | Nano Research Energy2022，1，2： | 4 |
| 2 | Heterogeneous nanocomposites consisting of Pt_(3)Co alloy particles and CoP_(2) nanorods towards high-efficiency methanol electro-oxidation显示文摘Heterogeneous nanocomposites comprising chemically distinct constituents are particularly promising in electrocatalysis.We herein report a synthetic strategy that combines the reduction of Pt and Co ionic precursors at an appropriate ratio with the subsequent phosphating at an elevated temperature for forming heterogeneous nanocomposites consisting of quasi-spherical Pt_(3)Co alloy domains and rod-like CoP_(2) domains for high-efficiency methanol electrooxidation.The strong electronic coupling between Pt_(3)Co and CoP_(2) domains in the nanocomposites render the electron density around Pt atoms to decrease,which is favorable for reducing the adsorption of poisoning CO-like intermediates on the catalyst surfaces.Accordingly,the as-prepared heterogeneous Pt_(3)Co–CoP_(2) nanocomposites show good performance for methanol electrooxidation both in acidic and alkaline media.In specific,at a Pt loading of only 6.4%on a common carbon substrate,the mass-based activity of Pt_(3)Co–CoP_(2) nanocomposites in an acidic medium is about 2 and 1.5 times as high as that of commercial Pt/C catalyst(20%mass loading)and home-made Pt_(3)Co alloy nanoparticles(8.0%mass loading),while in the alkaline medium,these values are 3 and 2,respectively. | Niuwa Yang Dong Chen Penglei Cui Tingyu Lu Hui Liu Chaoquan Hu Lin Xu Jun Yang | 2021 | SmartMat2021，2，2： | 3 |
| 3 | 显示文摘 | Hu Chaoquan Zhu Qingshan Jiang Zheng | 2008 | Microporous and Mesoporous Materials2008，113，13： | 1 |
| 4 | CoSe_(2)/MoS_(2) Heterostructures to Couple Polysulfide Adsorption and Catalysis in Lithium-Sulfur Batteries显示文摘Lithium-sulfur batteries have been regarded as one of most promising next-generation energy storage devices because of their high energy density and low cost.However,polysulfide shuttling and slow kinetics hinder the practical application.We fabricated hierarchically heterostructured CoSe_(2)/MoS_(2) nanoarrays on carbon clothes as the sulfur cathode host.The resulting heterostructures facilitate electron conduction and improve electrolyte wetting.More importantly,the composite heterostructures couple the strong poly-sulfide adsorption of CoSe_(2) and high catalytic activity of MoS_(2) to synergistically accelerate polysulfide conversion,demonstrating higher catalytic activity than their individual components. | Zihan Shen Qingwen Zhou Huiling Yu Jiaming Tian Man Shi Chaoquan Hu Huigang Zhang | 2021 | Chinese Journal of Chemistry2021，39，5： | 1 |
| 5 | Fabrication and magnetic properties of Fe3O4 octahedra显示文摘 | Hu Chaoquan Gao Zhenghong Yang Xiaorui | 2006 | Chem Phys Lett2006，429，： | 1 |
| 6 | Three distinct optical-switching states in phase-change materials containing impurities:From physical origin to material design显示文摘Ge2 Sb2 Te5 is the most widely utilized chalcogenide phase-change material for non-volatile photonic applications,which undergoes amorphous-cubic and cubic-hexagonal phase transition under external excitations.However,the cubic-hexagonal optical contrast is negligible,only the amorphous-cubic phase transition of Ge_(2)Sb_(2)Te_(5) is available.This limits the optical switching states of traditional active displays and absorbers to two.We find that increasing structural disorder difference of cubic-hexagonal can increase optical contrast close to the level of amorphous-cubic.Therefore,an amorphous-cubichexagonal phase transition with high optical contrast is realized.Using this phase transition,we have developed display and absorber with three distinct switching states,improving the switching performance by 50%.Through the combination of first-principle calculations and experiments,we reveal that the key to increasing structural disorder difference of amorphous,cubic and hexagonal phases is to introduce small interstitial impurities(like N)in Ge2 Sb2 Te5,rather than large substitutional impurities(like Ag)previously thought.This is explained by the formation energy and lattice distortion.Based on the impurity atomic radius,interstitial site radius and formation energy,C and B are also potential suitable impurities.In addition,introducing interstitial impurities into phase-change materials with van der Waals gaps in stable phase such as GeSb_(4) Te_(7),GeSb_(2) Te_(4),Ge_(3)Sb_(2) Te_(6),Sb_(2)Te_(3) will produce high optical contrast amorphous-metastable-stable phase transition.This research not only reveals the important role of interstitial impurities in increasing the optical contrast between metastable-stable phases,but also proposes varieties of candidate matrices and impurities.This provides new phase-change materials and design methods for non-volatile optical devices with multi-switching states. | Chaobin Bi Kaicheng Xu Chaoquan Hu Ling Zhang Zhongbo Yang Shuaipeng Tao Weitao Zheng | 2021 | Journal of Materials Science & Technology2021，，16： | 1 |
| 7 | A facile hydrothermal route to synthesis of nonporous and porous hier- archical copper dendrites 显示文摘 | HU Chaoquan GAO Zhenghong YANG Xiaorui | 2007 | J Cryst Growth2007，306，： | 1 |
| 8 | Far-infrared transparent conductors显示文摘The long-standing challenge in designing far-infrared transparent conductors(FIRTC)is the combination of high plasma absorption edge(λ_(p))and high conductivity(σ).These competing requirements are commonly met by tuning carrier concentration or/and effective carrier mass in a metal oxide/oxonate with low optical dielectric constant(ε_(opt)=2-7).However,despite the highσ,the transparent band is limited to mid-infrared(λ_(p)<5μm).In this paper,we break the trade-off between highσandλ_(p)by increasing the“so-called constant”ε_(opt)that has been neglected,and successfully develop the material family of FIRTC withε_(opt)>15 andλ_(p)>15μm.These FIRTC crystals are mainly octahedrally-coordinated heavy-metal chalcogenides and their solid solutions with shallow-level defects.Their highε_(opt)relies on the formation of electron-deficiency multicenter bonds resulting in the great electron-polarization effect.The new FIRTC enables us to develop the first“continuous film”type far-infrared electromagnetic shielder that is unattainable using traditional materials.Therefore,this study may inaugurate a new era in far-infrared optoelectronics. | Chaoquan Hu Zijian Zhou Xiaoyu Zhang Kaiyu Guo Can Cui Yuankai Li Zhiqing Gu Wei Zhang Liang Shen Jiaqi Zhu | 2023 | Light(Science & Applications)2023，12，6： | 1 |
| 9 | Sprayable nanodrug-loaded hydrogels with enzyme-catalyzed semiinter penetrating polymer network(Semi-IPN)for solar dermatitis显示文摘Solar dermatitis is an acute or chronic high incidence of skin injury caused by ultraviolet(UV)radiation based on strong sunlight,which seriously endangers people's health.In this study,we designed and demonstrated enzyme-catalyzed semi-inter penetrating polymer network(Semi-IPN)sprayable nanodrug-loaded hydrogels based on gelatin,3-(4-hydroxyphenyl)propionic acid(HPA),polyvinyl alcohol(PVA),glycerol,and dexamethasone sodium phosphate(DEXP)for solar dermatitis.The hydrogels had high water content,excellent biocompatibility,effective encapsulation and sustained release of nanodrugs,antiinflammatory,and strong anti-ultraviolet B(anti-UVB)radiation properties based on glycerol and phenol functional groups,but also controllable spray gelation mode to make them adhere well on the dynamic skin surfaces and achieve continuous transdermal drugs delivery for solar dermatitis.The sprayable nanodrug-loaded hydrogel systems could be used as a highly effective therapeutic method for solar dermatitis,and also provide a good strategy for designing novel nanodrug-loaded hydrogel delivery systems. | Jialing Yao Junfeng Hui Jing Yang Jiaxin Yao Chaoquan Hu Daidi Fan | 2022 | Nano Research2022，15，7： | 0 |
| 10 | Efficient fluidization intensification process to fabricate in-situ dispersed(SiO+G)/CNTs composites for high-performance lithium-ion battery anode applications显示文摘An efficient fluidization process intensification method was proposed to prepare carbon nanotube(CNT)-enhanced high-performance SiO anodes for lithium-ion batteries.The introduction of graphite particles decreased bonding among SiO particles,inhibiting agglomerate growth and enhancing fluidization.The(SiO+G)/CNTs composites were synthesized by fluidized bed chemical vapor deposition with the CNTs grown in-situ,which ensured uniform dispersion and superior anchoring of the CNTs.The in-situ-grown CNTs and stacked graphite ensured excellent structural stability and conductivity.The synthesized(SiO+G)/CNTs delivered a stable reversible capacity of 466 mAh g^(−1) after 125 cycles and a capacity of∼200 mAh g^(−1) at 2 A g^(−1).The charging results indicated that the 3D network structure comprising CNTs and graphite not only effectively buffered the electrode expansion but also greatly improved mechanical flexibility. | Hebang Shi He Zhang Chaoquan Hu Shaofu Li Maoqiao Xiang Pengpeng Lv Qingshan Zhu | 2021 | Particuology2021，19，3： | 0 |
| 11 | Synthesis of TiCl_(2) powders through reactive gas phase infiltration in a fluidized bed reactor显示文摘TiCl_(2) is a promising precursor for producing metallic titanium alloys and titanium-based ceramics.However,the effective synthesis of high-quality TiCl_(2) powder remains challenging.Herein,a fluidized bed reactor(FBR)providing a high gas-solid contact area was employed to synthesize TiCl_(2) powder using a reliable TiCl_(4)-Ti reaction system.Optimal reaction conditions(600℃and 120 min)were determined for the proposed Ti-TiCl_(4) system by kinetic investigation.A dense Ti layer was regenerated upon the original surface of the Ti powder as a result of TiCl_(2) disproportionation at high temperature(above 700℃),which impeded infiltration by gaseous TiCl_(4).The particle size of the Ti reducing agent played a vital role in the production of TiCl_(2) powder.A mean particle size of 24.5μm was confirmed to be the most feasible option based on the optimal chlorinated depth(17μm). | Miao Song Yafeng Yang Hongdan Zhao Maoqiao Xiang Qingshan Zhu Jibin Jia Chaoquan Hu Fen Yue | 2021 | Particuology2021，19，4： | 0 |
| 12 | Ru single atoms induce surface-mediated discharge in Na-O_(2)batteries显示文摘Sodium(Na)O_(2)batteries have high energy density and low cost.However,high polarization,complex discharge products,and low Coulombic efficiency(CE)lead to poor cyclability.Here,we proposed an atomically dispersed Ru catalyst on nitrogen-doped graphene for Na-O_(2)batteries.The catalysts enable the discharge to proceed via a surface-mediated route,which leads to uniform deposition of Na_(2-x)O_(2)and low polarization during recharge.The first-principle calculation revealed that Ru-N_(4)complex in the catalyst has strong chemical adsorption to intermediate superoxides,facilitating uniform deposition and enhancing rapid kinetics.In contrast,Ru nanoparticles,despite the catalytic activity,induce bulk deposition via a solution-mediated route because the exposed graphene surface shows weak interaction to superoxides,thereby lowering CEs and cyclability.In brief,the atomically-dispersed Ru catalyst endows Na-O_(2)batteries with excellent electrochemical properties via a surface-mediated discharge. | Xin Jin Yangyang Li Shuo Zhang Jiangwei Zhang Zihan Shen Chenlin Zhong Ziqiang Cai Chaoquan Hu Huigang Zhang | 2022 | Chinese Chemical Letters2022，33，1： | 0 |
| 13 | Designing high-efficiency light-to-thermal conversion materials for solar desalination and photothermal catalysis显示文摘Light-to-thermal conversion materials(LTCMs)have been of great interest to researchers due to their impressive energy conversion capacity and wide range of applications in biomedical,desalination,and synergistic catalysis.Given the limited advances in existing materials(metals,semiconductors,π-conjugates),researchers generally adopt the method of constructing complex systems and hybrid structures to optimize performance and achieve multifunctional integration.However,the development of LTCMs is still in its infancy as the physical mechanism of light-to-thermal conversion is unclear.In this review,we proposed design strategies for efficient LTCMs by analyzing the physical process of light-tothermal conversion.First,we analyze the nature of light absorption and heat generation to reveal the physical processes of light-to-thermal conversion.Then,we explain the light-to-thermal conversion mechanisms of metallic,semiconducting andπ-conjugated LCTMs,and propose new material design strategies and performance improvement methods.Finally,we summarize the challenges and prospects of LTCMs in emerging applications such as solar water evaporation and photothermal catalysis. | Hanjin Jiang Xinghang Liu Dewen Wang Zhenan Qiao Dong Wang Fei Huang Hongyan Peng Chaoquan Hu | 2023 | Journal of Energy Chemistry2023，，4： | 0 |
| 14 | Designing hard wear-resistant conductors by introducing high-plasma-energy heterogeneous metals into transition metal nitrides显示文摘1.Introduction Hard and wear-resistant conductors(HWCs)refer to functional films with simultaneously high hardness,high wear resistance,and good electrical conductivity.HWCs have important applica-tions such as next-generation sliding electrical contacts,high-end conductive probe-tip,and oval hole guides for the precision rolling mill[1-4],which has drawn extensive research interests.However,it is still challenging to integrate high hardness,super wear resis-tance,and high electrical conductivity in one material.Tradition-ally,researchers have mainly alloyed the highly conductive met-als Cu,Au,and Pt to improve their hardness and wear resistance. | Yuankai Li Chaoquan Hu Yao Wu Zhenan Qiao Yifan Cheng Zhiqing Gu Gang Gao Weitao Zheng | 2023 | Journal of Materials Science & Technology2023，，26： | 0 |
| 15 | Sensitivity analysis of mesoscale structural parameters for simulation of fluidized beds显示文摘This study presents new numerical drag models with which to analyze the sensitivity of mesoscale structural parameters in bubbling,turbulent,and circulating fluidized beds.The drag models are derived using the method of transfer-coefficient-based structural parameters(TC-SP).Analyzing the sensitivity of the structural parameters reveals that the coefficients associated with drag are more sensitive to parameters in the dense phase than to those in the dilute phase,especially the superficial slip velocity.On the basis of these results,the TC-SP drag model is simplified further.Interestingly,despite having half the number of parameters of conventional structure-based drag models,the simplified TC-SP drag model achieves simulation results that are equally or more accurate.With simple calculations and improved accuracy using coarse grids,the model reported in this study is capable of predicting the hydrodynamics of the three types of fluidized beds. | Wenming Liu Hongzhong Li Qingshan Zhu Chaoquan Hu | 2019 | Particuology2019，17，6： | 0 |
| 16 | New design for highly durable infrared-reflective coatings显示文摘The fundamental challenge in designing durable infrared-reflective coatings is achieving the ideal combination of both high reflectivity and durability.Satisfying these competing demands is traditionally achieved by deposition of durable layers on highly reflective metals.We overturn the traditional logic of‘first reflectivity and then durability’and propose an alternative of‘first durability and then reflectivity’:First,a transition-metal compound is selected as a durable base;then its reflectivity is improved by incorporating silver/gold to form an alloy or by overcoating a multilayer stack.Two validation experiments prove that the new strategy works extremely well:the coatings thus obtained have infrared reflectivities close to that of aluminum,and their hardness and acid and salt corrosion resistances are 27–50,400–1500 and 7500–25000 times that of aluminum.The traditional mirror coating(e.g.,Al/SiO2 films)is more suitable for moderate environments,while our mirror coating that was obtained by the new strategy(e.g.,an Ag-doped hafnium nitride film)is more suitable for harsh environments,such as ones with dust,windblown sand,moisture,acid rain or salt fog.This work opens up new opportunities for highly durable infrared-reflective coatings and rejuvenates the study of transition metal compounds in a completely new area of optics. | Chaoquan Hu Jian Liu Jianbo Wang Zhiqing Gu Chao Li Qian Li Yuankai Li Sam Zhang Chaobin Bi Xiaofeng Fan Weitao Zheng | 2017 | Light(Science & Applications)2017，6，1： | 0 |
| 17 | Core-shell Ag-Pt nanoparticles:A versatile platform for the synthesis of heterogeneous nanostructures towards catalyzing electrochemical reactions显示文摘Heterogeneous nanostructures that are defined as a hybrid structure consisting of two or more nanoscale domains with distinct chemical compositions or physical characteristics have attracted intense efforts in recent years.In this review,we focus on the introduction of a number of heterogeneous nanostructures derived using core-shell Ag-Pt nanoparticles as starting materials,including hollow,dimeric and composite structures and also highlight their application in catalyzing electrochemical reactions,e.g.,methanol oxidation reaction and oxygen reduction reaction.This review not only shows the capability of core-shell Ag-Pt nanoparticles in producing various heterogeneous nanostructures as starting templates,but also highlights the structural design or electronic interaction that endows the heterogeneous nanostructures with enhanced catalytic properties either in methanol oxidation or in oxygen reduction.Further,we also make some perspectives for more heterogeneous nanostructures that may be prepared by using core-shell Ag-Pt particles or their derivatives so as to offer the readers the opportunities and challenges in this field. | Danye Liu Niuwa Yang Qing Zeng Hui Liu Dong Chen Penglei Cui Lin Xu Chaoquan Hu Jun Yang | 2021 | Chinese Chemical Letters2021，32，11： | 0 |
| 18 | Ce and Se co-doped MBG/SA/HLC microgel bone powder for repairing tumor bone defects显示文摘The repair and treatment of tumor bone defects is a difficult problem to solve urgently in clinical medicine.After tumor resection,patients are not only faced with a large area of bone defect,but also may have the risk of tumor recurrence,which can easily cause huge physical and mental harm to patients.In this study,we successfully designed and constructed an organic/inorganic composite microgel bone powder(S-H-M3%Ce/3%Se)based on cerium(Ce)and selenium(Se)elements co-doped mesoporous bioactive glass(M3%Ce/3%Se),sodium alginate(SA),and recombinant human-like collagen(HLC).The obtained S-H-M3%Ce/3%Se could inhibit the growth of osteoma cells and promote the growth of normal cells,and effectively promote the repair of defect bone.The integration of the“treatment and repair”organic/inorganic composite microgel bone powder provided a new strategy for the treatment of cancerous bone defects. | Miaolin Fan Wan Liu Cuiying Fan Xiaoyan Zheng Junfeng Hui Chaoquan Hu Daidi Fan | 2023 | Nano Research2023，16，1： | 0 |
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