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| 1 | Optimization of mechanical and damping properties of Mg-0.6Zr alloy by different extrusion processing显示文摘In this study,the optimization of mechanical and damping capacities of Mg-0.6 wt.%Zr alloys by controlling the recrystallized(DRXed)grain size under varying extrusion processing parameters including extrusion temperature T and strain rate was investigated.The relationship between the DRXed grain size and damping properties of the studied alloy was also discussed.The DRXed grain size of the as-extruded Mg-Zr alloys decreased as the extrusion temperature T decreased and the strain rateεincreased.As the DRXed grain size decreased,the strength and elongation of the as-extruded alloys exhibited improved performance through the grain refinement mechanism,while the damping properties deteriorated.The extrusion temperature of the Mg-Zr alloy had relatively greater effects on the mechanical and damping properties than the strain rate.The results of the present work indicate that alloys with appropriate mechanical and damping properties may be obtained from controlling the DRXed grain size by careful tailoring of the extrusion process parameters. | Jingfeng Wang Zhongshan Wu Shan Gao Ruopeng Lu Dezhao Qin Wenxiang Yang Fusheng Pan | 2015 | Journal of Magnesium and Alloys2015，3，1： | 4 |
| 2 | Effect of long period stacking ordered (LPSO) structure on the damping capacities of Mg-Cu-Mn-Zn-Y alloys显示文摘 | WANG Jingfeng LU Ruopeng WEI Wenwen | 2012 | Journal of Alloys and Compounds2012，537，5： | 1 |
| 3 | Synergistic Interfacial and Doping Engineering of Heterostructured NiCo(OH)_(x)-Co_(y)W as an Efficient Alkaline Hydrogen Evolution Electrocatalyst显示文摘To achieve high efficiency of water electrolysis to produce hydrogen(H_(2)),developing non-noble metal-based catalysts with consid-erable performance have been considered as a crucial strategy,which is correlated with both the interphase properties and multi-metal synergistic effects.Herein,as a proof of concept,a delicate NiCo(OH)_(x)-CoyW catalyst with a bush-like heterostructure was realized via gas-template-assisted electrodeposition,followed by an electrochemical etching-growth process,which ensured a high active area and fast gas release kinetics for a superior hydrogen evolution reaction,with an overpotential of 21 and 139 mV at 10 and 500 mA cm^(−2),respectively.Physical and electrochemical analyses demonstrated that the synergistic effect of the NiCo(OH)_(x)-Co_(y)W heteroge-neous interface resulted in favorable electron redistribution and faster electron transfer efficiency.The amorphous NiCo(OH)_(x) strengthened the water dissociation step,and metal phase of CoW provided sufficient sites for moderate H immediate adsorption/H_(2) desorption.In addition,NiCo(OH)_(x)-CoyW exhibited desirable urea oxidation reaction activity for matching H_(2) generation with a low voltage of 1.51 V at 50 mA cm^(−2).More importantly,the synthesis and testing of the NiCo(OH)_(x)-CoyW catalyst in this study were all solar-powered,sug-gesting a promising environmentally friendly process for practical applications. | Ruopeng Li Hao Xu Peixia Yang Dan Wang Yun Li Lihui Xiao Xiangyu Lu Bo Wang Jinqiu Zhang Maozhong An | 2021 | Nano-Micro Letters2021，13，8： | 1 |
| 4 | Defining Adaptation Con- straints for Business Process Variants显示文摘 | Lu Ruopeng Sadiq S W Govematori G | 2009 | Business Information Sys- tems2009，，： | 1 |
| 5 | Layer-by-layer enriching active Ni-N_(3)C sites in nickel-nitrogen-carbon electrocatalysts for enhanced CO_(2)-to-CO reduction显示文摘Transition metal and nitrogen co-doped carbons(M-N-C)have proven to be promising catalysts for CO_(2)electroreduction into co because of the high activity and selectivity.Effective enrichment of the active transition metal coordinated nitrogen sites is desirable but is challenging for a practical volumetric productivity.Herein,we report four kinds of model electrocatalysts to unveil this issue,which include the NC structures with surface N-functionalities,Ni-N-CI with one layer of surface Ni-NsC sites,NC@Ni-N-CI with surface N-functionalities and underneath Ni-N3C sites as well as Ni-N-C_II with doubled surface Ni-NsC sites.The X-ray absorption spectroscopy indicates the coordination configuration of Ni-NsC.For NC catalysts,when N-doping level increased from 3.5 at%to 8.4 at%,the CO partial current density increased from below 0.1 mA/cm^(2)to 3 mA/cm^(2).Introducing one layer of Ni-N_(3)C onto the NC structures leads to a 54 times higher CO partial current density than that of NC,in the meantime the FE_(CO) is 66 times higher.Furthermore,doubling the density of surface Ni-N_(3)C sites by a layer-by-layer method doubles the CO partial current density Gco,indicating its potential to achieve a high density of active coordinated sites and current densities. | Yongqi Ren Ruopeng Chang Xu Hua Junjie Guo Guangping Hao Anhui Lu | 2023 | Chinese Chemical Letters2023，34，12： | 0 |
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