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Electrochemical Characteristics of LaNi4.5Al0.5 Alloy Used as Anodic Catalyst in a Direct Borohydride Fuel CellLianbang Wang,Guobin Wu,Zhenzhen Yang,Yunfang Gao,Xinbiao Mao and Chun’an Ma State Key... alloy used as the anodic material has been investigated.It was found that the increasing operation temperature was helpful to the open-circuit potential,the discharge potential and the power density......
Regeneration of waste SCR catalyst by air lift loop reactorLEE Jung-bin, EOM Yong-seok, KIM Jun-han, CHUN Sung-nam(Technology Commercialization Office, Korea Electric Power Research Institute, Daejeon 305-380, Korea)Abstract:A solution of 0.1 mol/L to 1.0 mol/L H2SO4 can dissolve alkali metals and alkaline earth metals which weaken an active site of SCR catalyst. The waste catalyst washed......
fuel cell; hydrogen generation; Ni-B alloy; catalyst 1 Introduction With the rapid development of proton exchange membrane fuel cells (PEMFC), which adopts pure hydrogen as the best fuel, hydrogen...-desorption analysis. When being adopted as the catalysts for successive hydrogen generation from sodium borohydride solution, the Ni-B alloy treated at 90 ℃ achieves a maximum hydrogen generation rate of 15.4......
Preparation and characterization of CuO-CoO-MnO/SiO2 nanocomposite aerogels as catalyst carriers ZHAO Yue-qing(赵越卿)1, 2, ZHAO Hai-lei(赵海雷)2, LIANG Ying-hua(梁英华)3, JIA Qian-yi(贾千一)4, ZHANG... spectroscopy (XPS). The microstructure and composition of the CuO-CoO-MnO/SiO2 nanocomposite aerogels were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron......
数的Mo系金属与d电子数小于d轨道数的Ni系金属形成合金时,有助于改进催化剂对吸附H的结合能,这将对HER产生协同效应,提高催化活性.RAJ[13]研究了几种二元合金的HER活性,大小依次为Ni-Mo,Ni-Zn,Ni-Co,Ni-W,Ni-Fe,Ni-Cr.其中Ni-Mo合金被广泛认为是最有前景实现产业化析氢生产的催化材料.对此,ZHANG等[14]利用磁控溅射技术在Ni基底上构建了均匀的二元合...中都具有很好的稳定性；ZHANG等[18]利用电沉积法在碳纸上制得3D结构的CoMoSx析氢催化剂,其反应起始过电位低至100 mV,即使电流密度为100 mA/cm2时也只有180 mV的过电位.由此可见,无论添加的第三种元素是金属还是非金属,它们都可以进一步改进Ni基合金表面的电子结构状态活结构形貌,从而增强HER性能. 图2 泡沫Ni和泡沫Ni-Mo/Ni的FE-SEM像以及泡......
Effects of catalyst precursors on carbon nanowires by using ethanol catalytic combustion technique CHENG Jin(程 进)1,2, ZOU Xiao-ping(邹小平) 1,2, LI Fei(李 飞) 1,2, ZHANG Hong-dan(张红丹..., China Received 10 April 2006; accepted 25 April 2006 Abstract: Iron nitrate, nickel nitrate and cobalt nitrate were used as catalyst precursors to study their effects on carbon nanowires synthesized......
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were coated respectively on a FeCrAl alloy foil by a dip-coating technique and used as the second support for the active LaMnAl11O19 hexaaluminate (HA) phase in a metallic monolithic catalyst. A sample... vibration and thermal shock techniques. Methane catalytic combustion was performed to evaluate the activity of the catalyst. The results showed that the activity and adhesion of the HA to the alloy......
were coated respectively on a FeCrAl alloy foil by a dip-coating technique and used as the second support for the active LaMnAl11O19 hexaaluminate (HA) phase in a metallic monolithic catalyst. A sample... vibration and thermal shock techniques. Methane catalytic combustion was performed to evaluate the activity of the catalyst. The results showed that the activity and adhesion of the HA to the alloy......
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