氧化物载体对Ru基催化剂催化乙醇水蒸气重整制氢反应性能的影响  

Influence of oxide supports on catalytic performance of Ru-based catalysts for hydrogen production from steam reforming of ethanol

作　　者：李莉 许俊杰 李瑞玲 鲁礼林 LI Li;XU Junjie;LI Ruiling;LU Lilin(College of Chemistry and Chemical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Coal Conversion and New Carbon Materials Key Laboratory,Wuhan University of Science and Technology,Wuhan 430081,China;College of Chemistry and Pharmaceutical Engineering,HuangHuai University,Zhumadian 463000,China)

机构地区：[1]武汉科技大学化学与化工学院,湖北武汉430081 [2]武汉科技大学煤转化与新型炭材料湖北省重点实验室,湖北武汉430081 [3]黄淮学院化学与制药工程学院,河南驻马店463000

出　　处：《武汉科技大学学报》2024年第4期264-271,共8页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金项目(21671154,U1732147);武汉科技大学煤转化与新型炭材料湖北省重点实验室开放基金项目(WKDM202210).

摘　　要：分别以ZrO_(2)、Al_(2)O_(3)、La_(2)O_(3)为载体构建Ru基催化剂,借助XRD、SEM、H_(2)-TPR、XPS、乙醇水蒸气重整制氢实验及in situ-DRIFTS等对所制催化剂进行了相关测试。结果表明,Ru/ZrO_(2)催化剂的催化性能相比Ru/Al_(2)O_(3)和Ru/La_(2)O_(3)催化剂有显著提升,使用Ru/ZrO_(2)催化剂在450℃下催化乙醇水蒸气重整制氢的乙醇转化率和氢气选择性分别达到90.0%和78.4%,Ru/ZrO_(2)催化剂具有优异的稳定性、分散性、更强的C—C键裂解能力和催化乙醇氧化脱氢性能。Ru-based catalysts were constructed by using ZrO_(2),Al_(2)O_(3) and La_(2)O_(3) as the carrier,and the related tests were carried out by means of XRD,SEM,H_(2)-TPR,XPS,ESR activity test and in situ-DRIFTS.The results show that the catalytic performance of Ru/ZrO_(2) catalysts is significantly higher than that of Ru/Al_(2)O_(3) and Ru/La_(2)O_(3) catalysts.When Ru/ZrO_(2) catalysts are used to catalyze hydrogen production from ethanol steam reforming at 450℃,the ethanol conversion and hydrogen selectivity are 90.0%and 78.4%,respectively.Ru/ZrO_(2) catalysts have excellent stability and dispersion,stronger C—C bond cracking ability and catalytic oxidative dehydrogenation of ethanol.

关 键 词：氧化物载体 Ru基催化剂 乙醇水蒸气重整制氢 催化机理 

分 类 号：O643[理学—物理化学]