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| 1 | Experimental measurement of the electrical conductivity of single crystal olivine at high temperature and high pressure under different oxygen fugacities显示文摘At 1.0-4.0 GPa and 1123-1473 K and under oxygen fugacity-controlled conditions (Ni + NiO, Fe + Fe3O4, Fe + FeO and Mo+ M0O2 buffers), a YJ-3000t Model six-anvil solid high-pressure apparatus and a Sarltron-1260 Impedance/Gain-Phase analyzer were employed to conduct an in situ measurement of the electrical conductivity of single crystal olivine. Experimental results showed that: (1) within the range of experimentally selected frequencies (103-106 Hz), the electrical conductivity of the sample is of great dependence on the frequency; (2) with the rise of temperature ( T), the electrical conductivity (σ) will increase, and the Arrenhius linear relationship is established between lgσ and 1/T; (3) under the control of oxygen buffer Fe+ Fe3O4, with the rise of pressure, the electrical conductivity tends to decrease whereas the activation enthalpy and independent-of-temperature preexponential factor tend to increase, with the activation energy and activation volume of the sample estimated at (1. 25 ± 0.08) eV and (0.105 ±0.025) cm3/mol, respectively; (4) under given pressure and temperature conditions, the electrical conductivity tends to increase whereas the activation energy tends to decrease with increasing oxygen fugacity; and ( 5) the mechanism of electrical conduction of small polarons can provide insight into the behavior of electrical conduction of olivine under high pressure and high temperature. | DAI Lidong LI Heping LIU Congqiang CUI Tongdi SHAN Shuangming YANG Changjun LIU Qingyou DENG Heming | 2006 | Progress in Natural Science:Materials International2006，16，4： | 9 |
| 2 | In situ trapped high-density single metal atoms within graphene: Iron-containing hybrids as representatives for efficient oxygen reduction显示文摘因为他们为特殊催化作用的效率和 chemoselectivity 比传统的催化剂的那些优异,原子地驱散的催化剂在精力变换应用吸引了注意。然而,他们在支持上由于极其低的装载金属的内容有限制,在在高温度的金属地点和数量以及低稳定性的精确控制的困难。我们经由葡萄糖, dicyandiamide,和无机的金属盐的单个步的热热分解准备了一个高度做的单个金属原子混血儿。高角度的环形的黑暗扫描地的传播电子显微镜学(HAADF 茎) 和 X 光检查吸收罚款结构光谱学(XAFS ) 表明做进 graphene 矩阵的氮原子为由产生 metal-Nx 协作结构的金属原子稳定是枢轴的。由于 graphene 矩阵的强壮的抛锚效果,装载内容的金属是在孤立的原子混血儿的超过 4 wt.%( 磅内容象在做磅的混血儿的 9.26 wt.% 一样高) 。而且,单个做铁的混血儿(做 Fe@N 的 graphene ) 为氧减小反应显示出显著 electrocatalytic 表演。山峰力量密度是 199 | Daobin Liu Chuanqiang Wu Shuangming Chen Shiqing Ding Yaofeng Xie Changda Wang Tao Wang Yasir A. Haleem Zia ur Rehman Yuan Sang Qin Liu Xusheng Zheng Yu Wang Binghui Ge Hangxun Xu Li Song | 2018 | Nano Research2018，11，4： | 6 |
| 3 | 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 |
| 4 | Microstructure evolution of directionally solidifi ed Sn-16%Sb hyperperitectic alloy显示文摘The directionally solidifi ed microstructure of Sn-16%Sb hyperperitectic alloy has been investigated at various solidifi cation rates using a high-thermal gradient directional solidif ication apparatus. The results indicate that the solidifi cation microstructure consists of hard primary intermetallic SnSb phase embedded in a matrix of soft peritectic β-Sn phase. The primary SnSb phase exhibits faceted growth with tetragonal or trigonal shapes. At the same time, the primary SnSb phase is ref ined with an increase in the solidif ication rate and dispersed more uniformly in the matrix of β-Sn phase. The volume fraction of the SnSb phase fi rstly decreases and then increases when the solidif ication rate increases in directional solidif ication of Sn-16%Sb hyperperitectic alloy. | Hu Xiaowu Li Shuangming Liu Lin Fu Hengzhi | 2008 | China Foundry2008，5，3： | 4 |
| 5 | Experimental Study on the Electrical Conductivity of Orthopyroxene at High Temperature and High Pressure under Different Oxygen Fugacities显示文摘At presure 1.0–4.0 GPa and temperature 1073–1423 K and under oxygen partial pressure conditions, a YJ-3000t multi-anvil solid high-pressure apparatus and Sarltron-1260 Impedance/Gain-Phase analyzer were employed toconduct an in-situ measurement of the electrical conductivity of orthopyroxene. The buffering reagents consist of Ni+NiO,Fe+Fe3O4, Fe+FeO and Mo+MoO2 in order to control the environmental oxygen fugacity. Experimental results made clearthat: (1) within the measuring frequency range from 10? to 106 Hz, the complex impedance (R) is of intensive dependence 1on the frequency; (2) The electrical conductivity (σ) tends to increase along to the rise of temperature (T), and Log σ vs. 1/T fit the Arrenhius linear relations; (3) Under the control of oxygen buffer Fe+Fe3O4, with the rise of pressure, theactivation enthalpy tends to increase whereas the electrical conductivity tends to decrease. The activation energy andactivation volume of the main current carriers of orthopyroxene have been obtained, which are (1.715±0.035) eV and (0.03±0.01) cm3/mol, respectively; (4) Under given pressure and temperature, the electrical conductivity tends to increase withincreasing oxygen fugacity, while under given pressure the activation enthalpy tends to decrease with increasing oxygenfugacity; and (5) The sample’s small polarons mechanism has provided a reasonable explanations to the conductionbehavior at high temperature and high pressure. | DAI Lidong LI Heping LIU Congqiang SHAN Shuangming CUI Tongdi SU Genli | 2005 | Acta Geologica Sinica(English Edition)2005，79，6： | 4 |
| 6 | Solidification microstructure selection of the peritectic Nd-Fe-B alloys显示文摘Bridgman directional solidification and laser remelting experiments were carried out on Nd11.76Fe82.36B5.88 and Nd13.5Fe79.75B6.75 alloys.Microstructure evolutions along with solidification parameters(temperature gradient G,growth velocity V and initial alloy composition C0)were investigated.A solidification microstructure selection map was established,based on the consideration of solidification characteristics of peritectic T1 phase.In Bridgman directional solidification experiments,with the increasing growth velocities,the morphology of T1 phase changed from plane front or faceted plane front to dendrites.In laser remelting experiments,a transition from primary γ-Fe dendrites to T1 dendrites was found.Theoretical predictions are in good agreement with experimental results. | ZHONG Hong LI ShuangMing LüHaiYan LIU Lin ZOU GuangRong FU HengZhi | 2007 | Science China(Physics,Mechanics & Astronomy)2007，50，4： | 4 |
| 7 | Effect of sample diameter on primary and secondary dendrite arm spacings during directional solidification of Pb-26wt.%Bi hypo-peritectic alloy显示文摘The microstructure scales of dendrites,such as primary and secondary dendrite arm spacings,control the segregation profiles and the formation of secondary phases within interdendritic regions,which determine the properties of solidified structures.Investigations on primary and secondary dendrite arm spacings of primary α-phase during directionally solidified Pb-26wt%Bi hypo-peritectic alloy were carried out in this research,and systematic studies were conducted using cylindrical samples with different diameters(Φ = 1.8 and 7.0 mm) in order to analyze the effects of sample diameter on the primary and secondary dendrite arm spacings.In this work,the dependence of dendrite arm spacings on growth velocity was established.In addition,the experimental data concerning the primary and secondary dendrite arm spacings were compared with the main predictive dendritic models from the literatures.A comparison between experimental results for dendrite arm spacings of the 1.8-mm-diameter sample and 7.0-mm-diameter sample was also conducted. | HU Xiaowu YAN Hong CHEN Wenjing LI Shuangming FU Hengzhi | 2011 | Rare Metals2011，30，4： | 2 |
| 8 | Vacancy manipulating of molybdenum carbide MXenes to enhance Faraday reaction for high performance lithium-ion batteries显示文摘“Intrinsic”strategies for manipulating the local electronic structure and coordination environment of defect-regulated materials can optimize electrochemical storage performance.Nevertheless,the structure–activity relationship between defects and charge storage is ambiguous,which may be revealed by constructing highly ordered vacancy structures.Herein,we demonstrate molybdenum carbide MXene nanosheets with customized in-plane chemical ordered vacancies(Mo_(1.33)CT_(x)),by utilizing selective etching strategies.Synchrotron-based X-ray characterizations reveal that Mo atoms in Mo1.33CTx show increased average valence of+4.44 compared with the control Mo_(2)CT_(x).Benefited from the introduced atomic active sites and high valence of Mo,Mo_(1.33)CT_(x)achieves an outstanding capacity of 603 mAh·g^(−1)at 0.2 A·g^(−1),superior to most original MXenes.Li+storage kinetics analysis and density functional theory(DFT)simulations show that this optimized performance ensues from the more charge compensation during charge–discharge process,which enhances Faraday reaction compared with pure Mo_(2)CT_(x).This vacancy manipulation provides an efficient way to realize MXene’s potential as promising electrodes. | Xin Guo Changda Wang Wenjie Wang Quan Zhou Wenjie Xu Pengjun Zhang Shiqiang Wei Yuyang Cao Kefu Zhu Zhanfeng Liu Xiya Yang Yixiu Wang Xiaojun Wu Li Song Shuangming Chen Xiaosong Liu | 2022 | Nano Research Energy2022，1，3： | 2 |
| 9 | High-metallic-phase-concentration MO1-xWxS2 nanosheets with expanded interlayers as efficient electrocatalysts显示文摘 | Qun He Yangyang Wan Hongliang Jiang Chuanqiang Wu Zhongti Sun Shuangming Chen Yu Zhou Haiping Chen Daobin Liu Yasir A. Haleem Binghui Ge Xiaojun Wu Li Song | 2018 | Nano Research2018，11，3： | 1 |
| 10 | Active {010} facet-exposed Cu2MoS4 nanotube as high-efficiency photocatalyst显示文摘 | Ke Zhang Yunxiang Lin Zahir Muhammad Chuanqiang Wu Shuang Yang Qun He Xusheng Zheng Shuangming Chen Binghui Ge Li Song | 2017 | Nano Research2017，10，11： | 1 |
| 11 | Probing the degenerate pattern growth of {100}<011> orientation in a directionally solidified Al-4.5 wt% Cu alloy显示文摘Degenerate pattern is a seemingly disordered morphology but it exhibits the inherently ordered crystal connected with tip-splitting and limited stability which makes it difficult to observe in the metallic system. Here we employ(100)[011] orientated planar-front seeds using directional solidification and reveal the fundamental origins of the degenerate pattern growth in an Al-4.5 wt% Cu alloy. We find that the spacing of the tip-splitting(λ) in the degenerate of the alloys followed a power law,λ∝V^-0.5, and the frequency(f) of the splitting was related to the growth velocity(V) by f ∝V^1.5. The dimensionless growth direction(θ/θ0) increased monotonously and approached 0.6 with faster velocity, attributed to its anisotropy in the interface kinetics. Once growth velocity exceeded a threshold, two types of pattern transitions from degenerate to regular dendrites were proposed. One of them exhibited a random and chaotic mode and the other underwent a rotation in growth direction. | Yumin Wang Shuangming Li Zhenpeng Liu Hong Zhong Lei Xu Hui Xing | 2019 | Journal of Materials Science & Technology2019，35，7： | 1 |
| 12 | Motivating Ru-bri site of RuO_(2)by boron doping toward high performance acidic and neutral oxygen evolution显示文摘The electrocatalysis of oxygen evolution reaction(OER)plays a key role in clean energy storage and transfer.Nonetheless,the sluggish kinetics and poor durability under acidic and neutral conditions severely hinder practical applications such as electrolyzer compatible with the powerful proton exchange membrane and biohybrid fuel production.Here,we report a borondoped ruthenium dioxide electrocatalyst(B-RuO_(2))fabricated by a facile boric acid assisted strategy which demonstrates excellent acidic and neutral OER performances.Density functional theory calculations and advanced characterizations reveal that the boron species form an anomalous B–O covalent bonding with the oxygen atoms of RuO_(2)and expose the fully coordinately bridge ruthenium site(Ru-bri site),which seems like a switch that turns on the inactive Ru-bri site into OER-active,resulting in more exposed active sites,modified electronic structure,and optimized binding energy of intermediates.Thus,the B-RuO_(2)exhibits an ultralow overpotential of 200 mV at 10 mA/cm^(2)and maintains excellent stability compared to commercial RuO_(2)in 0.5 M sulfuric acid.Moreover,the superior performance is as well displayed in neutral electrolyte,surpassing most previously reported catalysts. | Chongjing Liu Beibei Sheng Quan Zhou Dengfeng Cao Honghe Ding Shuangming Chen Pengjun Zhang Yujian Xia Xiaojun Wu Li Song | 2022 | Nano Research2022，15，8： | 1 |
| 13 | Phosphate-induced interfacial electronic engineering in VPO_(4)-Ni_(2)P heterostructure for improved electrochemical water oxidation显示文摘Anodic oxygen evolution reaction(OER)is the key bottleneck for water electrolysis technique owing to its sluggish reaction kinetics.Interfacial engineering on the rationally designed heterostructure can regulate the electronic states efficiently for intrinsic activity improvement.Here,we report a co-phosphorization approach to construct a VPO_(4)-Ni_(2)P heterostructure on nickel foam with strongly chemical binding,wherein phosphate acts as electronic modifier for Ni_(2)P electrocatalyst.Profiting from the interfacial interaction,it is uncovered that electron shifts from Ni_(2)P to VPO_(4)to render valence increment in Ni species.Such an electronic manipulation rationalizes the chemical affinities of various oxygen intermediates in OER pathway,giving a substantially reduced energy barrier.As a result,the advanced VPO_(4)-Ni_(2)P heterostructure only requires an overpotential of 289 mV to deliver a high current density of 350 mA/cm^(2)for OER in alkaline electrolyte,together with a Tafel slope as low as 28 mV/dec.This work brings fresh insights into interfacial engineering for advanced electrocatalyst design. | Kun Chen Keke Mao Yu Bai Delong Duan Shuangming Chen Chengming Wang Ning Zhang Ran Long Xiaojun Wu Li Song Yujie Xiong | 2022 | Chinese Chemical Letters2022，33，1： | 1 |
| 14 | Competitive growth of different phases in eutectic alloys under directional solidification显示文摘By comparisons of interface growth temperatures of different phases in eutectic systems, competitive growth between the primary phase, halo structure and coupled eutectic has been discussed. The compositions for the formation of coupled eutectic have been discussed at the coexisting with the primary phase in eutectic under directional solidification. Solidification conditions, such as growth rate and composition required for the formation of the primary phase, halo structure and coupled eutectic have been proposed. Numerical calculation results show that no halo structure formed in directionally solidified Sn-Pb eutectic, but in Al-Si eutectic, competitive growth structures of the primary β-Si phase, α-Al halo structure and coupled eutectic (α+β) may exist at the hypereutectic composition between 12.6% and 25% Si. The calculated results of Al-Si eutectic fit in with the reported experiment results. | LI Shuangming MA Bole LI Xiaoli LIU Lin FU Hengzhi | 2005 | Science China(Technological Sciences)2005，48，3： | 1 |
| 15 | Phase Stability of the Laves Phase Cr_2Nb in a Two-Phase Cr-Cr_2Nb Alloy显示文摘The phase stability of the Laves phase Cr2Nb in a two-phase Cr-Cr2Nb alloy produced by arc-melting was investigated using X-ray difraction,transmission electron microscopy and selected area electron difraction.The experimental results indicated that the as-cast ingot was consisted of C15-Cr2Nb and Cr phases;the intermediate C36 and high-temperature C14 modifications of Cr2Nb,reported in literatures,were not detected in this study.These results,combined with a detailed analysis of the actual solidification conditions,revealed that the C14-Cr2Nb was a metastable rather than a stable high-temperature modification.Moreover,a kind of extremely fine lamellar structure was found to be randomly distributed in the eutectic cells,which may be formed by decomposition of the supersaturated C15-Cr2Nb via a discontinuous precipitation reaction. | Kewei LI Shuangming LI Sixiang ZHAO Hong ZHONG Yunlong XUE Hengzhi FU | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，6： | 1 |
| 16 | Probing self-optimization of carbon support in oxygen evolution reaction显示文摘Despite acknowledgment of structural reconstruction of materials following oxygen evolution reaction (OER) reaction, the role of support during the reconstruction process has been ignored. Given this, we directly in situ transform the residual iron present in raw single-walled carbon nanotubes (SWCNT) into Fe_(2)O_(3) and thus build Fe_(2)O_(3)-CNT as the model system. Intriguingly, an anomalous self-optimization occurred on SWCNT and the derived components show satisfactory electrochemical performance. Soft X-ray absorption spectroscopy (sXAS) analysis and theory calculation correspondingly indicate that self-optimization yields stronger interaction between SWCNT and Fe_(2)O_(3) nanoparticles, where the electrons migrate from Fe_(2)O_(3) to optimized SWCNT. Such polarization will generate a positive charge center and thus boost the OER activity. This finding directly observes the self-optimization of support effect, providing a new perspective for OER and related electrochemical reactions. | Wenjie Xu Dengfeng Cao Oyawale Adetunji Moses Beibei Sheng Chuanqiang Wu Hongwei Shou Xiaojun Wu Shuangming Chen Li Song | 2021 | Nano Research2021，14，12： | 1 |
| 17 | Methyl prednisolone therapy clinical applica- tion in neurosurgery Analysis显示文摘 | Li Shuangming Chen Weixin | 2012 | Guangdong medicine2012，13，4： | 1 |
| 18 | A Unique Ru-N_(4)-P Coordinated Structure Synergistically Waking Up the Nonmetal P Active Site for Hydrogen Production显示文摘Numerous experiments have demonstrated that the metal atom is the active center of monoatomic catalysts for hydrogen evolution reaction(HER),while the active sites of nonmetal doped atoms are often neglected.By combining theoretical prediction and experimental verification,we designed a unique ternary Ru-N_(4)-P coordination structure constructed by monodispersed Ru atoms supported on N,P dual-doped graphene for highly efficient hydrogen evolution in acid solution.The density functional theory calculations indicate that the charge polarization will lead to the most charge accumulation at P atoms,which results in a distinct nonmetallic P active sites with the moderate H∗adsorption energy.Notably,these P atoms mainly supply highly efficient catalytic sites with ultrasmall absorption energy of 0.007 eV.Correspondingly,the Ru-N_(4)-P demonstrated outstanding HER performance not only in an acidic condition but also in alkaline environment.Notably,the performance of Ru-NPC catalyst at high current is even superior to the commercial Pt/C catalysts,whether in acidic or alkaline medium.Our in situ synchrotron radiation infrared spectra demonstrate that a P-H_(ads) intermediate is continually emerging on the Ru-NPC catalyst,actively proving the nonmetallic P catalytically active site in HER that is very different with previously reported metallic sites. | Chuanqiang Wu Shiqing Ding Daobin Liu Dongdong Li Shuangming Chen Huijuan Wang Zeming Qi Binghui Ge Li Song | 2020 | Research2020，，1： | 1 |
| 19 | Peritectic phase growth in directionally solidified Cu-70% Sn alloy显示文摘The growth mechanism of the peritectic η phase involving the peritectic reaction and peritectic transformation in Cu-70%Sn alloy was investigated under directional solidification.The results show that a major growth mechanism in thickening of the peritectic η-layer is not the peritectic reaction but the peritectic transformation.The transformation temperature and isothermal time play crucial roles in determining the volume fraction and the thickness of the peritectic η phase.With the increase of the temperature and isothermal time,the volume fraction of the peritectic η phase increases.The regressed data show that the relationship between the thickness of η phase(x)and the transformation temperature(T)meets the following equation ln x=6.51673 1T.Additionally,there exists a relationship between the thickness of the η phase(x)and the isothermal time(t)at the 9 mm solidification distance be-low the peritectic reaction interface,x =0.72t1/2,which is consistent with the theo-retical model. | LüHaiYan LI ShuangMing LIU Lin FU HengZhi | 2007 | Science China(Physics,Mechanics & Astronomy)2007，50，4： | 1 |
| 20 | Cu_(2−x)S derived copper nanoparticles:A platform for unraveling the role of surface reconstruction in efficient electrocatalytic CO_(2)-to-C_(2)H_(4)conversion显示文摘Cu-based electrocatalysts have provoked much attention for their high activity and selectivity in carbon dioxide(CO_(2))conversion into multi-carbon hydrocarbons.However,during the electrochemical reaction,Cu catalysts inevitably undergo surface reconstruction whose impact on CO_(2)conversion performance remains contentious.Here we report that polycrystalline Cu nanoparticles(denoted as Cu-s)with rich high-index facets,derived from Cu_(2−x)S through desulphurization and surface reconstruction,offer an excellent platform for investigating the role of surface reconstruction in electrocatalytic CO_(2)conversion.During the formation of Cu-s catalyst,the two stages of desulphurization and surface reconstruction can be clearly resolved by in situ X-ray absorption spectroscopy and OH−adsorption characterizations,which are well correlated with the changes in electrocatalytic performance.It turns out that the high CO_(2)conversion performance,achieved by the Cu-s catalyst(Faradic efficiency of 68.6%and partial current density of 40.8 mA/cm^(2)in H-cell toward C_(2)H_(4)production),is attributed to the increased percentage of high-index facets in Cu-s during the surface reconstruction.Furthermore,the operando electrochemical Raman spectroscopy further reveals that the conversion of the CO_(2)into the C_(2)H_(4)on Cu-s is intermediated by the production of*COCHO.Our findings manifest that the surface reconstruction is an effective method for tuning the reaction intermediate of the CO_(2)conversion toward high-value multicarbon(C2+)chemicals,and highlight the significance of in situ characterizations in enhancing the understanding of the surface structure and its role in electrocatalysis. | Chaohua He Delong Duan Jingxiang Low Yu Bai Yawen Jiang Xinyu Wang Shuangming Chen Ran Long Li Song Yujie Xiong | 2023 | Nano Research2023，16，4： | 1 |
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