Nickel boride alloys as catalysts for successive hydrogen generation from sodium borohydride solution

摘要：

Nickel boride alloys,Ni-B,were prepared using chemical reduction method by the reaction of metal chloride with sodium borohydride,and heat-treated at various temperatures.The structures of the as-prepared alloys were studied using X-ray diffractometry (XRD),scanning electronic microscopy (SEM) and nitrogen adsorption-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 L/(min·g),and an average hydrogen generation rate of 13.6 L/min,which can give successive hydrogen supply to a 2.2 kW PEMFC at a hydrogen utilization of 100％.

关键词： proton exchange membrane fuel cell hydrogen generation Ni-B alloy catalyst

作者: WU Chuan BAI Ying WU Feng WANG Guo-qing

作者单位: School of Chemical Engineering and the Environment,Beijing Institute of Technology,Beijing 100081,China;National Development Center for High Technology Green Materials,Beijing 100081,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）