Design of optimum solid oxide membrane electrolysis cells for metals production  

作　　者：Xiaofei Guan Uday B.Pal 

机构地区：[1]Division of Materials Science and Engineering,Boston University [2]Department of Mechanical Engineering,Boston University [3]John A.Paulson School of Engineering and Applied Sciences,Harvard University

出　　处：《Progress in Natural Science:Materials International》2015年第6期591-594,共4页自然科学进展·国际材料（英文版）

基　　金：supported by the Department of Energy (DE-FC36-14GO14011;DEEE0003454;and DE-EE0005547);the National Science Foundation (DMI-9424069;DMI-0457381;CBET-1210442;and DMR-08-19762)

摘　　要：Oxide to metal conversion is one of the most energy-intensive steps in the value chain for metals production.Solid oxide membrane(SOM)electrolysis process provides a general route for directly reducing various metal oxides to their respective metals,alloys,or intermetallics.Because of its lower energy use and ability to use inert anode resulting in zero carbon emission,SOM electrolysis process emerges as a promising technology that can replace the state-of-the-art metals production processes.In this paper,a careful study of the SOM electrolysis process using equivalent DC circuit modeling is performed and correlated to the experimental results.A discussion on relative importance of each resistive element in the circuit and on possible ways of lowering the rate-limiting resistive elements provides a generic guideline for designing optimum SOM electrolysis cells.Oxide to metal conversion is one of the most energy-intensive steps in the value chain for metals production.Solid oxide membrane(SOM)electrolysis process provides a general route for directly reducing various metal oxides to their respective metals,alloys,or intermetallics.Because of its lower energy use and ability to use inert anode resulting in zero carbon emission,SOM electrolysis process emerges as a promising technology that can replace the state-of-the-art metals production processes.In this paper,a careful study of the SOM electrolysis process using equivalent DC circuit modeling is performed and correlated to the experimental results.A discussion on relative importance of each resistive element in the circuit and on possible ways of lowering the rate-limiting resistive elements provides a generic guideline for designing optimum SOM electrolysis cells.

关 键 词：ELECTROLYSIS Solid OXIDE Membranes METALS PRODUCTION Environmentally BENIGN 

分 类 号：TF302[冶金工程—冶金机械及自动化]