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Regulation of Oxygen Activity by Lattice Confinement over NixMg1-xO Catalysts for Renewable Hydrogen Production
文献摘要：
The chemical looping steam reforming(CLSR)of bioethanol is an energy-efficient and carbon-neutral approach of hydrogen production.This paper describes the use of a NixMg1-xO solid solution as the oxy-gen carrier(OC)in the CLSR of bioethanol.Due to the regulation effect of Mg2+in NixMg1-xO,a three-stage reaction mechanism of the CLSR process is proposed.The surface oxygen of NixMg1-xO initially causes complete oxidation of the ethanol.Subsequently,H2O and bulk oxygen confined by Mg2+react with etha-nol to form CH3COO* followed by H2 over partially reduced NixMg1-xO.Once the bulk oxygen is con-sumed,the ethanol steam reforming process is promoted by the metallic nickel in the stage Ⅲ.As a result,Ni0.4Mg0.6O exhibits a high H2 selectivity(4.72 mol H2 per mole ethanol)with a low steam-to-carbon molar ratio of 1,and remains stable over 30 CLSR cycles.The design of this solid-solution OC pro-vides a versatile strategy for manipulating the chemical looping process.
文献关键词：
中图分类号：
[1] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）
[2] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）
[3] 天文学、地球科学（P） / 地球物理学（P3） / 空间物理（P35）
作者姓名：
Hao Tian;Chunlei Pei;Sai Chen;Yang Wu;Zhijian Zhao;Jinlong Gong
作者机构：
Key Laboratory for Green Chemical Technology of Ministry of Education,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;Collaborative Innovation Center of Chemical Science and Engineering,Tianjin 300072,China;Joint School of National University of Singapore and Tianjin University,International Campus of Tianjin University,Binhai New City,Fuzhou 350207,China
文献出处：
工程（英文）
引用格式：
[1]Hao Tian;Chunlei Pei;Sai Chen;Yang Wu;Zhijian Zhao;Jinlong Gong-.Regulation of Oxygen Activity by Lattice Confinement over NixMg1-xO Catalysts for Renewable Hydrogen Production)[J].工程（英文）,2022(05):62-69
A类：
Confinement,NixMg1,CLSR,Mg2+in,Mg2+react,etha,4Mg0,6O
B类：
Regulation,Oxygen,Activity,by,Lattice,over,xO,Catalysts,Renewable,Hydrogen,Production,chemical,looping,steam,reforming,bioethanol,energy,efficient,carbon,neutral,approach,hydrogen,production,This,paper,describes,solid,solution,as,carrier,OC,Due,regulation,effect,three,stage,reaction,mechanism,process,proposed,surface,oxygen,initially,causes,complete,oxidation,Subsequently,H2O,bulk,confined,CH3COO,followed,partially,reduced,Once,sumed,promoted,metallic,nickel,result,Ni0,exhibits,high,selectivity,mole,molar,ratio,remains,stable,cycles,design,this,vides,versatile,strategy,manipulating
AB值：
0.45753
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