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| 1 | Influence of welding parameters on interface evolution and mechanical properties of FSW Al/Ti lap joints显示文摘Friction stir welding(FSW)was performed to produce Al/Ti lap joints under various welding conditions.More heat was generated when rotational rate increased or traversing rate decreased.Two types of Al/Ti interfaces–mixed interface and diffusive interface–were formed under different welding conditions.The diffusive interface was formed with low heat input,and the mixed interface was formed more heat.The grains at the mixed interface were larger than those at the diffusive interface because of the higher heat input.Moreover,the microstructure of the mixed interface had a lower texture intensity compared with that of the diffusive interface,which was attributed to the enhanced continuous dynamic recrystallization(CDRX).TiAl3 was formed at the diffusive interface.When the interface varied to the mixed interface as heat input increased,TiAl was fomed within the Al/Ti mixture following the formation of TiAl3.In addition,TiAl3 precipitates were observed in the diffusion layer.The hardness value of the mixed interface was higher than 350 HV,due to the larger amount of intermetallic compounds(IMCs).The lap shear strength reached a maximum value of 147 MPa with medium heat input and an interface that exits in a critical state between diffusive and mixed interfaces.All the specimens fractured at the interface,which was attributed to the presence of IMCs. | Mingrun Yu Hongyun Zhao Zhihua Jiang Zili Zhang Fei Xu Li Zhou Xiaoguo Song | 2019 | Journal of Materials Science & Technology2019，35，8： | 2 |
| 2 | Photocatalytic Overall Water Splitting Promoted by an α–β phase Junction on Ga<sub>2</sub>O<sub>3</sub>显示文摘 | Xiang Wang Qian Xu Mingrun Li Shuai Shen Xiuli Wang Yaochuan Wang Zhaochi Feng Jingying Shi Hongxian Han Can Li | 2012 | Angew Chem Int Ed2012，，52： | 1 |
| 3 | Stabilization of Low‐Temperature Degradation in Mixed Ionic and Electronic Conducting Perovskite Oxygen Permeation Membranes显示文摘 | Yan Liu Xuefeng Zhu Mingrun Li Huanyin Liu You Cong Weishen Yang | 2013 | Angew Chem Int Ed2013，，11： | 1 |
| 4 | Co NP/NC hollow nanoparticles derived from yolk-shell structured ZIFs@polydopamine as bifunctional electrocatalysts for water oxidation and oxygen reduction reactions显示文摘The pyrolysis under inert atmosphere has been widely used for the synthesis of metal containing heteroatoms doped carbon materials, versatile catalysts for various reactions. However, it is difficult to prevent metal nanoparticles aggregation during pyrolysis process. Herein, we reported the efficient synthesis of nitrogen doped carbon hollow nanospheres with cobalt nanoparticles(Co NP, ca. 10 nm in size) distributed uniformly in the shell via pyrolysis of yolk-shell structured Zn-Co-ZIFs@polydopamine(PDA). PDA acted as both protection layer and carbon source, which successfully prevented the aggregation of cobalt nanoparticles during high-temperature pyrolysis process. The Co NP and N containing carbon(Co NP/NC)hollow nanospheres were active for both oxygen evolution reaction(OER) and oxygen reduction reaction(ORR), affording overpotential of 430 m V at 10 m A/cm^2 for OER in 1 M KOH and comparable half-wave potential to that of Pt/C(0.80 V vs RHE) for ORR in 0.1 M KOH. The superior performance of carbon hollow nanospheres for both OER and ORR was mainly attributed to its small metal nanoparticles, N-doping and hollow nanostructure. The protection and confinement effect that originated from PDA coating strategy could be extended to the synthesis of other hollow structured carbon materials, especially the ones with small metal nanoparticles. | Jiao Zhao Feng Rong Yi Yao Wenjun Fan Mingrun Li Qihua Yang | 2018 | Journal of Energy Chemistry2018，27，4： | 1 |
| 5 | The role of water in methane adsorption and diffusion within nanoporous silica investigated by hyperpolarized 129Xe and 1H PFG NMR spectroscopy显示文摘 | Yuanli Hu Mingrun Li Guangjin Hou Shutao Xu Ke Gong Xianchun Liu Xiuwen Han Xiulian Pan Xinhe Bao | 2018 | Nano Research2018，11，1： | 0 |
| 6 | One dimensional nickel phosphide polymorphic heterostructure as carbon-free functional support loading single-atom iridium for promoted electrocatalytic water oxidation显示文摘Although conducting materials such as carbon nanotube and carbon fiber paper(CFP)have been extensively employed as support of electrocatalytic active sites,most of them are of poor catalytic functionality by themselves and undesirable stability during strong acid/alkaline environments or oxidation process.Here we report a novel one-dimensional(1D)nickel phosphide polymorphic heterostructure(denoted as NPPH)to work as one effective carbon-free functional support for loading of single-atom Ir water oxidation electrocatalyst.Specifically,the NPPH composed of both Ni12P5and Ni2P phases is not only active for robust alkaline water oxidation but also is of good stability and hydrophilicity for favorable loading of single-atom dispersed iridium.The NPPH supported single-atom Ir electrocatalyst(Ir/NPPH)is found to exhibit remarkably superior water oxidation activity with respect to the NPPH itself or CFP supported single-atom Ir catalyst(Ir/CFP),demonstrating the synergetic promotion effect between NPPH and single-atom Ir catalyst.Furthermore,the NPPH supported single-atom Ir catalyst can bear alkaline water oxidation for over 120 h at current density of 50 mA cm^(-2).The NPPH developed here is expected as functional support to composite with other water oxidation catalysts,as may be an alternative strategy of developing highly efficient carbon-free electrocatalysts. | Rashid Mehmood Guifa Long Wenjun Fan Mingrun Li Lifang Liu Fuxiang Zhang | 2023 | Journal of Energy Chemistry2023，，4： | 0 |
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