Pd基多相催化剂上CO_(2)加氢反应的研究进展

Research Progress of CO_(2) Hydrogenation over Pd-based Heterogeneous Catalysts

随着二氧化碳(CO_(2))排放量的不断增加,全球变暖和气候变化的加剧对人类的生存环境产生了巨大的影响.CO_(2)作为廉价、可再生的碳氧资源,将其转化为高附加值化学品是绿色化学及能源领域的重要研究课题之一,受到广泛关注.Pd基催化剂由于具有优异的加氢能力以及良好的抗烧结、抗毒化性能,作为CO_(2)催化转化最有前途的催化剂被广泛应用和研究.本文主要对Pd基催化剂上CO_(2)加氢制备HCOOH,CO,CH_(4)和甲醇等小分子能源化合物的研究进展进行综合评述,重点关注Pd基催化剂上CO_(2)分子的吸附/活化位点、催化剂的金属-载体强相互作用及表界面组成等对催化剂活性和选择性的影响以及催化反应机理.

With the continuous increase of carbon dioxide(CO_(2))emissions,the impact of global warming and climate change on human life and ecological environment has become more serious.As a cheap and renewable carbon and oxygen resource,converting CO_(2) into high value-added chemicals is one of the shining research topics in the field of green chemistry and energy,and has received extensive attention.The Pd-based catalysts are one kind of the most promising catalysts of CO_(2) catalytic conversion due to its excellent hydrogenation capacity,good stability,anti-sintering and anti-poisoning properties.This paper will review the research progress of the hydrogenation of CO_(2) over Pd-based catalysts to synthesis small energy molecule compounds such as HCOOH,CO,CH_(4) and methanol.We will pay main attention to the discussion of the active sites for the adsorption/activation of CO_(2) molecule,strong metal-support interaction,surface and interface composition,which affect the activity and selectivity of Pd-based catalysts,as well as the catalytic mechanism over Pd-based catalysts.