CeO_(2)载体在CO_(2)加氢制甲醇中的应用和研究进展  

Application and research progress of CeO_(2) support in CO_(2) hydrogenation to methanol

作　　者：周运桃 王洪星 李新刚[1] 崔丽凤 ZHOU Yuntao;WANG Hongxing;LI Xingang;CUI Lifeng(State Key Laboratory of Chemical Engineering,Collaborative Innovation Center of Chemical Science and Engineering,Tianjin Key Laboratory of Applied Catalysis Science and Engineering,School of Chemical Engineering&Technology,Tianjin University,Tianjin 300354,China;Shandong Hualu Hengsheng Chemical Co.,Ltd.,Dezhou 253024,Shandong,China)

机构地区：[1]化学工程联合国家重点实验室,天津化学化工协同创新中心,天津市应用催化科学与工程重点实验室,天津大学化工学院,天津300354 [2]山东华鲁恒升化工股份有限公司,山东德州253024

出　　处：《化工进展》2024年第5期2723-2738,共16页Chemical Industry and Engineering Progress

基　　金：国家重点研发计划(2022YFB4101800)。

摘　　要：随着经济的快速发展,CO_(2)排放导致的温室效应日益严峻,通过与绿氢反应将其转化为甲醇等有价值的化工产品是减少CO_(2)排放、缓解全球气候变暖的有效途径。近年来,CeO_(2)负载金属催化剂在CO_(2)加氢制甲醇反应中得到了广泛关注。本文主要综述了CeO_(2)表面氧空位和碱性位点、Ce3+/Ce4+可逆氧化还原能力、几何形貌等特性在CO_(2)/H_(2)吸附活化和甲醇形成过程中所起到的重要作用,比较了CeO_(2)与ZrO_(2)、ZnO以及复合金属氧化物等载体在反应中的差异,提出了CeO_(2)载体催化剂在确认活性关键中间体、兼顾CO_(2)转化率和甲醇选择性、提高催化活性与稳定性等方面的不足和挑战,以期为新型CO_(2)加氢制甲醇催化剂的设计提供有益参考。The urgency of addressing the greenhouse effect produced by CO_(2) emissions is growing due to the economy’s rapid development.Reducing CO_(2) emissions and slowing down global warming can be accomplished by reacting CO_(2) with green hydrogen to produce value-added chemical compounds like methanol.Recently,CeO_(2)-supported metal catalysts for CO_(2) hydrogenation to methanol have received extensive attentions.In this review,the importance of CeO_(2) surface oxygen vacancy,basic sites,Ce^(3+)/Ce^(4+) reversible redox ability,and unique geometric morphology were highlighted in the processes of CO_(2)/H_(2) adsorption and activation and methanol formation.Moreover,the catalytic activities between CeO_(2) and ZrO_(2),ZnO and composite metal oxides supports were compared.Finally,the shortcomings and challenges in identifying active key intermediates,compromising between CO_(2) conversion and methanol selectivity,and improving the catalytic activity and stability of CeO_(2)-based catalysts were highlighted.This work could provide useful advises for further design of CO_(2) hydrogenation to methanol catalysts.

关 键 词：二氧化碳 加氢 催化剂 CeO_(2)载体 甲醇 活性 

分 类 号：TQ426[化学工程] O643.36[理学—物理化学]