WO_(3)催化剂用于电化学氢泵分离含氢气体的研究  

WO_(3)catalyst for separation of hydrogen-containing gas in electrochemical hydrogen pump

作　　者：潘东伟 崔福军 季鹏飞 杜国栋 贺高红[1,2] 吴雪梅 PAN Dong-wei;CUI Fu-jun;JI Peng-fei;DU Guo-dong;HE Gao-hong;WU Xue-mei(The Research Center of Membrane Science and Technology,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;Panjin Industrial Technology Institute,Dalian University of Technology,Panjin 124221,China;Dalian Eurofilm Industrial Ltd.,Dalian 116041,China)

机构地区：[1]大连理工大学化工学院膜科学与技术研究中心,辽宁大连116024 [2]大连理工大学盘锦产业技术研究院,辽宁盘锦124221 [3]大连欧科膜技术工程有限公司,辽宁大连116041

出　　处：《现代化工》2023年第4期171-176,共6页Modern Chemical Industry

基　　金：辽宁省化学助剂合成与分离省市共建重点实验室2020年开放课题(ZJKF2012);中央高校基本科研业务费(DUT21ZD406)。

摘　　要：利用偏钨酸铵前驱体静电纺丝-焙烧法设计制备了具有一维多孔纳米纤维形貌的非贵金属WO_(3)氢氧化催化剂,考察了焙烧温度对催化剂形貌和电化学性能的影响。一维多孔WO_(3)纤维催化剂显示出较高的氢氧化活性和电化学活性面积,其电化学活性面积达到商业化Pt/C催化剂的77.3%。使用非贵金属WO_(3)催化剂的电化学氢泵表现出较好的氢气分离性能,在模拟天然气制氢的H_(2)/CO_(2)混气中氢体积分数为75%、混气流量为20 sccm时,与Pt/C催化剂电化学氢泵的电流-电压曲线几乎重合。结果表明,非贵金属WO_(3)氢氧化催化剂用于电驱动氢分离具有可行性,极大地拓展了电化学氢泵在氢分离领域的规模化应用。WO_(3),a non-noble metal catalyst with one-dimensional porous nanofiber morphology,is designed and prepared from ammonium metatungstate precursor through electrospinning-calcination method,and proposed for the separation of hydrogen-containing gases in electrochemical hydrogen pump.The effect of calcination temperature on the morphology and electrochemical performance of the catalyst is investigated.This one-dimensional porous WO_(3) nanofiber catalyst shows a high hydrogen oxidation activity,and its electrochemical active area is equivalent to about 77.3%of that of commercial Pt/C catalyst.The electrochemical hydrogen pump with WO_(3) catalyst shows a good hydrogen separation performance,and its current-voltage behavior is comparable to that of the hydrogen pump with Pt/C catalyst when the hydrogen content of H_(2)/CO_(2)is 75 vol.%and the gas flow rate is 20 sccm.It is indicated that it is feasible to use WO_(3) hydrogen oxidation catalyst for electrically driven hydrogen separation,which expands greatly the large-scale application of electrochemical hydrogen pump in the field of hydrogen separation.

关 键 词：电化学氢泵 氢气分离 氧化钨催化剂 能量效率 回收率 

分 类 号：TQ028[化学工程] TM912.1[电气工程—电力电子与电力传动]