催化作用
化学
纳米颗粒
再分配(选举)
吸附
Atom(片上系统)
过渡金属
金属
化学工程
单层
苯甲醇
活化能
物理化学
有机化学
工程类
法学
嵌入式系统
政治
生物化学
计算机科学
政治学
作者
Xin Zhao,Ruiqi Fang,Zirong Shen,Fengliang Wang,Yingwei Li
摘要
Abstract Transition‐metal catalysts with metal nanoparticles (NPs) as active sites are widely utilized in various reactions. In this work, we report the atomic decoration of Pt upon Co NPs for enhanced catalytic performances in oxidation esterification. Systematical characterizations imply the single‐atom nature and homogeneous distribution of Pt throughout the formed single‐atom alloy (SAA). The synergistic interactions between Pt and Co lead to significant charge redistribution and up‐shifted density of states (DOS) toward the Fermi level, which are verified favorable for the adsorption and activation of substrates. The esterification performances of Pt 1 Co@C are evaluated in the transformation of 54 kinds of aromatic alcohols (5‐hydromethylfurfural, furfural, and benzyl alcohols) into the corresponding mono‐ and diesters. Pt 1 Co@C shows not only remarkably enhanced reactivity but also reliable durability in both batch and continuous flow reactors. Mechanism investigations clearly reveal the rapid transformation of 5‐hydromethylfurfural over Pt 1 Co@C through a simplified route with reduced energy barriers.
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