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J. Cent. South Univ. (2017) 24: 1941-1952 DOI: https://doi.org/10.1007/s11771-017-3602-x Removal of Cd(II) and Pb(II) from soil through desorption using citric acid: Kinetic and equilibrium studies... Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: The desorption test was conducted to evaluate the desorption behavior of Pb(II) and Cd(II) using citric acid......
Reaction kinetics of hydrogen absorption for Mg-based hydrogen-storage materialsWANG Er-de(王尔德)1, ZHANG Wen-cong(张文从)2,YU Zhen-xing(于振兴)3, FANG Wen-bin(房文斌)2, SUN Zhi-jie(孙志杰)2(1. School..., China;3. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China)Abstract:The reaction kinetics of hydrogen absorption for Mg-Ni-MnO2 hydrogen-storage materials made......
, the alloy particles are obviously pulverized due to the larger expansion and shrinkage of cell volumes during hydrogen absorption and desorption, which induces the fast degradation of the TiV-based hydrogen...DEGRADATION BEHAVIORS OF NEW TYPE TiV-BASED HYDROGEN STORAGE ELECTRODE ALLOYS X.Z. Sun1,M.X. Gao1,Y.F. Zhu1,R. Li1,H.G. Pan1,Y. Lin1 (1.Department of Materials Science and Engineering, Zhejiang......
to the hydrogen absorption kinetics and the HCP phase can improve the hydrogenation PCT characteristic. The multiphase structures make the Zr0.7Ti0.3V2 alloy preserve excellent hydrogen absorption properties. Key words: Zr0.7Ti0.3V2 alloy; AB2 type; multiphase structure; hydrogen absorption kinetics; PCT curve 在AB2型Laves相金属间化合物中,ZrV2合金具有贮氢容量大,吸氢平衡压低,室温下氢化物稳定,吸氢后不改变主相的晶体结构等特点,被认为是一种较为理想的氢及其同位素贮存材料.但是......
时,其氢脆敏感性将有所提高. 关键词:热浸镀锌层;氢渗透;大气腐蚀;氢脆 中图分类号:TG 174.41 文献标识码:A Effect of humidity on hydrogen embrittlement susceptivity of hot-dip galvanized steel exposed... 100039, China) Abstract: The hydrogen permeation and embrittlement behavior of hot-dip galvanized steels exposed to stimulated marine atmospheric environments with different relative humidities(RH......
temperature, superior hydrogen desorption property, and lower hydrogen desorption activation energy, which is thought to be the reason of its better hydrogen storage kinetics, as compared with RE=Sm... of alloy hydrides. SADHASIVAM et al [14] investigated the effect of adding Mm (Ce and La as the dominant components) oxide on hydrogen desorption kinetics of MgH2 and the results revealed that Mm-oxide......
1500 MPa级高强度钢42CrMoVNb的氢吸附行为李阳1,张永健1,惠卫军1,王毛球1,董瀚1(1.北京市钢铁研究总院先进钢铁材料技术国家工程研究中心)摘 要:采用阴极充H和H热分析等实验方法,研究了新开发的1500MPa级高强度钢42CrMoVNb在不同奥氏体化温度淬火和不同温度回火后的H吸附行为,并与常用钢42CrMo进行了对比.结果表明,在淬火态及不同温度回火处理后,42CrMoVNb钢充H试样的H逸出曲线峰值温度θP在200-250℃之间.回火温度从200℃升高到......
and desorption kinetics of the alloys. Furthermore,varying milling time has an obvious effect on the hydrogen storage properties of the alloys. Hydrogen absorption saturation ratio(Ra10; a ratio... of the hydrogen desorption capacity in 20 min to the saturated hydrogen absorption capacity) of the alloys always increases with extending milling time. The improved hydrogen desorption kinetics of the alloys......
Kinetics of oxidation-precipitation of cobalt(Ⅱ) from solution by ozone TIAN Qing-hua(田庆华), GUO Xue-yi(郭学益), YI Yu(易 宇), LI Zhi-hai(李治海) School of Metallurgical Science and Engineering... investigated. The kinetics equation of each condition was established. The results indicate that the oxidation rate is independent of the initial concentration or solution temperature. The oxidation rate......
)). The Tafel slope of Se-NiCoP-2/CC is 81.6 mV/dec, indicating that its hydrogen evolution process may be followed by the Volmer-Heyrovsky mechanism, and the electrochemical desorption is rate...: https://doi.org/ 10.1016/j.cej.2020.127330. [10] CHEN Jia-dong, CHEN Chun-hong, CHEN Yu-zhuo, WANG Hai-yan, MAO Shan-jun, WANG Yong. Improving alkaline hydrogen evolution reaction kinetics......