CAJ | 학술논문

简要总结了我们在C=C及C=O双键低温加氢双金属催化剂方面的最新研究成果.首先,我们以环己烯加氢为探针反应,证明了平行使用多种研究手段的重要性,包括单晶表面的基础研究与DFT计算,多晶表面的合成与表征,负载型催化剂的制备与性能测试等.其次,总结了双金属催化剂在其他加氢反应,如丙烯醛C=O双键的选择性加氢,苯的低温加氢,以及乙炔的选择性加氢等反应中的应用.最后,讨论了利用金属碳化物代替贵金属Pt以减少双金属催化剂中Pt用量的可能性.
간요총결료아문재C=C급C=O쌍건저온가경쌍금속최화제방면적최신연구성과.수선,아문이배기희가경위탐침반응,증명료평행사용다충연구수단적중요성,포괄단정표면적기출연구여DFT계산,다정표면적합성여표정,부재형최화제적제비여성능측시등.기차,총결료쌍금속최화제재기타가경반응,여병희철C=O쌍건적선택성가경,분적저온가경,이급을결적선택성가경등반응중적응용.최후,토론료이용금속탄화물대체귀금속Pt이감소쌍금속최화제중Pt용량적가능성.
In this review,we will provide a brief review of our recent theoretical and experimental studies of bimetallic surfaces and catalysts for the low-temperature hydrogenation of unsaturated C=C and C-O bonds.We willfirst use the hydrogenation of cyclohexene as a probe reaction to demonstrate the importance of using several parallelapproaches,including fundamental surface science and density functional theory(DFT)studies on single crystal surfaces,synthesis,and characterization of polycrystalline surfaces and supported catalysts,and reactor evaluation of supported catalysts.We will then provide a summary of applications of bimetallic catalysts for other hydrogenation reactions,including the selective hydrogenation of the C=O bond in acrolein,the low-temperature hydrogenation of benzene,and the selective hydrogenation of acetylene in the presence of ethylene.Finally,we will discuss the possibility of replacing the platinum(Pt)component with metal carbides to reduce the loading of Pt in bimetallic catalysts.