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and entropy of dehydrogenation reaction of the decomposed ball milled Mg3La and hydrogen were calculated. XRD patterns indicated the existence of MgH2 and LaH3 in the decomposed hydride and the formation...Effect of ball milling on hydrogen storage of Mg3La alloy SUN Tai1,ZHU Min1,DONG Hanwu1,OUYANG Liuzhang1 (1.School of Mechanical Engineering, South China University of Technology, Guangzhou 510641......
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reaction of hydrogen storage alloy (MlNi5) of the slurry system and the gas-solid system are all very close. Key words:rare earths; hydrogen storage alloy; organic hydride; absorption hydrogen...Hydrogen Absorption Thermodynamic Properties of Rare Earth Based Hydrogen Storage Alloy in Benzene 陈立新1,蔡官明1,徐国华1,王启东1,安越1,陈长聘1 (1.Institute of Metallic Materials, Zhejiang University, Hangzhou......
the increase of proportion of soft b phase, the increase of DRX and the increase of extent of twins. Key words: Ti-6Al-4V alloy; hydrogen; flow stress; hot workability; microstructural evolution 1 Introduction... due to the hydrogen-enhanced plasticity, hydrogen-induced phase transformations and the reversible reaction of hydrogen with titanium[9-11]. The processing is basically dependent on the high hydrogen......
Towards designing efficient catalyst for hydrogen oxidation reactionRui-Jie Gao1,2,Ji-Jun Zou1,21. Key Laboratory for Green Chemical Technology of the Ministry of Education,School of Chemical... of US$30 kW-1[1].On the aspect of cathodic oxygen reduction reaction (ORR),several Pt-free catalysts (such as关键词:......
are attributed to the oxidation of adsorbed hydrogen on the electrode surface and hydrogen evolution reaction, respectively. With increasing the content of Co3O4, the anodic current at -0.65 V increases slightly... to the reaction of Co to Co2+, and its cathodic peak coincides with hydrogen evolution reaction [18]. It can be concluded that Co3O4 dissolves partly in alkaline electrolyte through electrochemical reaction......
; Abstract: Chou model was used to investigate the dehydriding reaction kinetic mechanism of MgH2-Nb2O5 hydrogen storage materials at 573 K. A new conception, "characteristic absorption/desorption time (tc)" was introduced to characterize the reaction rate. The fitting results show that for the hydrogen desorbing mechanism, the surface penetration is the rate-controlling step. The mechanism......
to carbon disulfide fast at pH value <3.0, but the reaction of hydrolysis is undetectable at pH value >3.0 during test time.Key words:ethyl-xanthate; thiosulfate; hydrogen peroxide; UV-visible...Degradation of ethyl xanthate in flotation residues by hydrogen peroxideCHEN Xing-hua(陈兴华)1, HU Yue-hua(胡岳华)1 , PENG Hong(彭宏)2, Cao Xue-feng(曹学锋)1(1. School of Minerals Processing and Bioengineering......
hydrogen evolution products of the reaction. The potential-time curves in the course of galvanostatic discharge for 600 s were obtained by imposing anodic current density of 180 mA/cm2 on the testing...-Pb alloy. Due to a large number of cathodic Al11Ce3 and Mg17Al12 phases, Ce promotes the micro-galvanic corrosion and leads to larger corrosion current density and hydrogen evolution rate in Mg-Al-Pb......
activity for hydrogen evolution reaction 当镀液中微粒含量过大时,TiO2微粒聚结为大颗粒,从而有可能使不同粒径的粒子的总浓度减小,进而使镀层中微粒的含量降低.本文作者在沉积(Ni-Mo)-TiO2复合镀层时也发现了这个规律.因此,在制备纳米复合镀层时,克服微粒在高浓度的团聚至关重要. 2.1.2 沉积时间的影响 在表1所列条件下,固定TiO2的悬浮... of depositing time on catalytic activity of electrode for hydrogen evolution reaction 2.2 电极的表面形貌和晶体结构 图3(a)所示为在表1所示条件下,(TiO2悬浮量为0,电沉积时间为40 min所制备的Ni-W-P电极的表面形貌;图3(b)所示为在表1所示条件下,TiO2悬浮量为12.5......