Design and optimization of electrochemical cell potential for hydrogen gas production  

作　　者：Nawar KAl-Shara Farooq Sher Sania ZIqbal Oliver Curnick George ZChen 

机构地区：[1]Department of Chemical and Environmental Engineering,Faculty of Engineering,University of Nottingham,University Park,Nottingham NG72RD,UK [2]School of Mechanical,Aerospace and Automotive Engineering,Faculty of Engineering,Environmental and Computing,Coventry University,Coventry CV12JH,UK [3]Department of Biochemistry,University of Agriculture,Faisalabad 38000,Pakistan [4]Institute for Future Transport and Cities,Coventry University,Coventry CV15FB,UK [5]Department of Chemical and Environmental Engineering,Faculty of Science and Engineering,University of Nottingham Ningbo China,University Park,Ningbo 315100,China

出　　处：《Journal of Energy Chemistry》2021年第1期421-427,I0013,共8页能源化学（英文版）

基　　金：the financial supports from the EPSRC (EP/J000582/1 and EP/F026412/1);Ningbo Municipal People’s Government (3315 Plan and 2014A35001-1)。

摘　　要：This study deals with the optimization of best working conditions in molten melt for the production of hydrogen(H2) gas.Limited research has been carried out on how electrochemical process occurs through steam splitting via molten hydroxide.54 combinations of cathode,anode,temperature and voltage have been investigated for the optimization of best working conditions with molten hydroxide for hydrogen gas production.All these electrochemical investigations were carried out at 225 to 300℃ temperature and 1.5 to 2.5 V applied voltage values.The current efficiency of 90.5,80.0 and 68.6% has been achieved using stainless steel anodic cell with nickel,stainless steel and platinum working cathode respectively.For nickel cathode,an increase in the current directly affected the hydrogen gas flow rate at cathode.It can be hypothesized from the noted results that increase in current is directly proportional to operating temperature and applied voltage.Higher values were noted when the applied voltages increased from 1.5 to 2.5 V at 300℃,the flow rate of hydrogen gas increased from 1.5 to 11.3 cm^(3) min^(-1),1.0 to 13 cm^(3) min^(-1) in case of electrolysis@stainless steel and@graphite anode respectively.It is observed that the current efficiency of stainless steel anodic cell was higher than the graphite anodic cell.Therefore,steam splitting with the help of molten salts has shown an encouraging alternate to current methodology for H2 fuel production.

关 键 词：Sustainable energy Splitting steam ELECTROLYSIS Hydrogen gas production Electrochemical cell and Variable cathodes 

分 类 号：TQ116.2[化学工程—无机化工] TM91[电气工程—电力电子与电力传动]