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the surface of the semiconductor is irradiated Fig.7 Dependence of photocatalytic O2 evolution on concentration of loaded V2O5 under UV-light irradiation Fig8.Dependence of photocatalytic O2...J. Cent. South Univ. Technol. (2009) 16: 0919-0925 DOI: 10.1007/s11771-009-0153-9 Preparation of TiO2 photocatalyst loaded with V2O5for O2 evolution GAO You-liang(高友良)1,2, CHEN Qi-yuan(陈启元)1......
that the coating has amorphous structure and the particles of the surface are fine with large specific surface area. The Ni-S-Co alloy is more active with lower potential for hydrogen evolution, higher exchange current density and lower activation energy compared with Ni and Ni-S electrode. Its hydrogen evolution reaction(HER) is enhanced, the size of particles of surface decreases and the surface area......
J. Cent. South Univ. (2020) 27: 1645-1653 DOI: https://doi.org/10.1007/s11771-020-4396-9 Evolution of surface roughness of a cast Al-Si-Cu piston alloy during thermal exposure BAO Tong(保彤)1, LI... for 2 h at temperatures ranging from 400 to 550°C. The evolution of surface roughness and microstructure of the alloy during thermal exposure was studied by combination methods of roughness profiles......
. The 3D dynamic keyhole evolution process is revealed through tracking free surface using volume-of-fluid method. The results show that the keyhole deepening speed decreases with laser welding process...; keyhole evolution; weld pool dynamics; free surface tracking; weld penetration Cite this article as: LIU Jiang-wei, ZENG Ping-wang, RAO Zheng-hua, ZHANG Tian-li. Transport phenomena and keyhole......
activity and catalytic stability are much higher than the other iron-group with Mo alloy electrodes. Key words: Ni-Fe-Mo-Co alloy; catalytic activity; surface structure; hydrogen evolution reaction... of investigations made in the past[1-10]. An effective way to increase the catalytic activity for hydrogen evolution electrode is to increase the true electrode area by increasing the electrode surface......
of the TBSS with systematically uncertain structural parameters were calculated accurately and efficiently by employing the probability density evolution method (PDEM). The model-predicted results were... was presented to explore the stochastic probability evolution mechanism of such train-ballasted track-subgrade system. Key words: coupled train-ballast-subgrade system; structural parameter uncertainty......
Structural evolution of Si-50%C powder during mechanical alloying and heat treatment TANG Wen-ming(汤文明), ZHENG Zhi-xiang(郑治祥), WU Yu-cheng(吴玉程), XU Guang-qing(徐光青), L? Jun(吕 珺), LIU Jun-wu(刘君武... powder is heat treated at 1 100 ℃ for 1 h, the grain size of β-SiC does not change, but the lattice ordering degree of β-SiC increases. Key words: SiC; mechanical alloying; structural evolution......
Atomic-scale structural evolution of electrode materials in Li-ion batteries:a reviewYi-Ru Ji1,2,Su-Ting Weng1,2,Xin-Yan Li1,2,Qing-Hua Zhang1,Lin Gu1,2,31. Beijing National Laboratory for Condensed... characterization method to unveil the charge storage mechanism of electrode materials in Li-ion batteries.The structural evolution of electrode materials during charge/discharge process can be directly......
J. Cent. South Univ. Technol. (2010) 17: 738-743 DOI: 10.1007/s11771-010-0549-6 Stress field evolution law of mining environment reconstructing structure with change of filling height CHEN...; Abstract: For improving global stability of mining environment reconstructing structure, the stress field evolution law of the structure with the filling height change of low-grade backfill......
the damage evolution of rock. WANG et al [10] suggested that stress changes lead to not only the accumulation and release of elastic energy but also the degradation and damage of structural units... J. Cent. South Univ. (2021) 28: 1857-1874 DOI: https://doi.org/10.1007/s11771-021-4735-5 Energy evolution mechanism and failure criteria of jointed surrounding rock under uniaxial compression LI......