配体调控Ni-Fe-B催化剂的制备及催化硼氢化钠水解产氢的研究  

Preparation of ligand-controlled Ni-Fe-B catalyst and applicaion in hydrogen production of sodium borohydride

作　　者：刘玉蕾 侯永江[1] 国洁[1] 李博[1] Liu Yulei;Hou Yongjiang;Guo Jie;Li Bo(School of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018)

机构地区：[1]河北科技大学环境科学与工程学院

出　　处：《化工新型材料》2019年第11期189-193,共5页New Chemical Materials

基　　金：河北省自然科学基金项目(B2018208188);河北省人社厅留学人员科技活动项目(CL201610);河北省重大科技成果转化专项项目(18041409Z)

摘　　要：通过添加酒石酸配体制备了使双金属催化剂中不同组分配合比的可调节非晶态合金催化剂,并对合成的镍-铁-硼-酒石酸(Ni-Fe-B-ta)双金属纳米颗粒进行了表征,其比表面积为100. 54m^2/g。同时研究了催化剂在硼氢化钠(Na BH4)水解制氢中的催化活性。研究结果表明,添加酒石酸同时调控2种金属的催化剂大大提高了Na BH4水解产氢的能力,其最高产氢速率达到7300mL/(min·g),活化能为46. 0kJ/mol,经过3次重复催化后,该催化剂依然可以保持较高的催化活性。An amorphous alloy catalyst with adjustable ratio of different components in the bimetallic catalyst was prepared by adding tartaric acid ligand. The synthesized Ni-Fe-B-ta bimetallic nanoparticles were characterized. And the Ni-FeB-ta had an estimated Langmuir surface erea of 100. 54 m^2/g. The catalytic activity was also studied by catalyzing hydrogen hydrolysis of sodium borohydride. The experimental results shown that the addition of tartaric acid to the catalysts of both metals greatly improved the ability of Na BH4 to produce hydrogen,and the maximum hydrogen production rate at room temperature reached 7300 mL/(min·g) with an activation energy of 46. 0 kJ/mol. The cyclic test results shown that after 3 repeated catalytic tests,the catalyst can still maintain a high catalytic activity.

关 键 词：镍-铁-硼纳米颗粒 酒石酸 硼氢化钠 产氢 

分 类 号：O64[理学—物理化学]