文献类型：期刊文献

中文题名：液相还原法制备FeCu/CeO_(2)催化剂及其高碳醇合成反应性能研究

英文题名：Preparation of FeCu/CeO_(2) catalyst by liquid-phase reduction method and its performance for higher alcohols synthesis

作者：黄乐[1];徐艳波[1];钱炜鑫[1];马宏方[1];张海涛[1];应卫勇[1]

机构：[1]华东理工大学化工学院,大型工业反应器工程教育部工程研究中心,化学工程联合国家重点实验室,上海200237

年份：2021

卷号：46

期号：3

起止页码：41

中文期刊名：天然气化工—C1化学与化工

外文期刊名：Natural Gas Chemical Industry

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：国家自然科学基金(21706068);国家863计划(2011AA05A204);中央高校基础研究基金(50321012117013)。

语种：中文

中文关键词：液相还原法;CeO_(2)载体;FeCu/CeO_(2)催化剂;高碳醇合成

外文关键词：liquid phase reduction method;CeO_(2)support;FeCu/CeO_(2)catalyst;higher alcohols synthesis

摘要：采用液相还原法制备了以CeO_(2)为载体的FeCu双金属纳米催化剂,采用XRD、BET、H_(2)-TPR、CO-TPD、XPS、FESEM、TEM和M觟ssbauer等技术对催化剂进行了表征,并考察了催化剂在高碳醇合成反应中的性能。催化剂FeCu/CeO_(2)-R和FeCu/CeO_(2)-C较高的Cu^(0)/Cu^(+)比和CO吸附量提升了产物中醇的含量。FeCu/CeO_(2)-O拥有较多的氧空位,有利于促进Ce和Fe元素之间的电子转移及铁物种的还原。FeCu/CeO_(2)-O较高的碳化铁含量促进了CO转化及醇类产物的碳链增长,使其在三种催化剂中具有最高的CO转化率和C^(2+)醇/甲醇质量比,分别为92.2%、3.8。CeO_(2)-O负载的FeCu催化剂更有利于C^(2+)高碳醇的合成。
FeCu bi-metallic nanocatalysts supported on CeO_(2) were prepared by liquid phase reduction method.The catalysts were characterized by XRD,BET,H_(2)-TPR,CO-TPD,XPS,FESEM,TEM and Mossbauer techniques,and their performances in the synthesis of higher alcohols were investigated.The higher Cu^(0)/Cu^(+)ratio and CO adsorption capacity of FeCu/CeO_(2)-R and FeCu/CeO_(2)-C catalysts increase the alcohol content in the products.The catalyst FeCu/CeO_(2)-O has more oxygen vacancies,which is beneficial to promote the electron transfer between Ce and Fe elements and the reduction of iron species.The higher iron carbide content of FeCu/CeO_(2)-O promotes the CO conversion and the carbon chain growth of alcohols,resulting in the highest CO conversion and C^(2+)alcohol/methanol ratio of 92.2%and 3.8,respectively.CeO_(2)-O supported FeCu catalyst is more favorable for the synthesis of C^(2+) higher alcohols.