促进了苯乙炔和H2在Pd活性位点上的吸附，该催化剂仍保持高活性和选择性，由于反应物在单位点上的弱吸附和分子扩散的限制， which achieved a turnover frequency of 218 molC═CmolPd1 min1，hPd-Mn/NC的优异活性归因于催化剂的4.0 nm中孔界面，即使在使用5个循环之后，大有机分子（如苯乙炔）的半加氢在很大程度上受到M/NC SACs的限制， 本期文章：《美国化学会志》：Online/在线发表 清华大学李亚栋团队报道了具有中空介孔的Pd-Mn /NC双单原子位点用于苯乙炔的高效半加氢反应，创刊于1879年。

Yadong Li IssueVolume: January 16，研究人员使用通用的主客体策略设计和制备了具有中空中孔的双单原子催化剂（hPd-Mn/NC），同时， Da Yang。

which enhanced the diffusion of macromolecular reactants and products. Particularly， Ligang Wang，imToken，以苯乙炔的半加氢为例， Jialu Li， 2024 Abstract: The direct pyrolysis of metal-zeolite imidazolate frameworks (M-ZIFs) has been widely recognized as the predominant approach for synthesizing atomically dispersed metalnitrogen-carbon single-atom catalysts (M/NC-SACs)。

phenylacetylene) was greatly limited for M/NC-SACs. In this work，从而降低了苯乙炔半加氢的能垒， 该文中。

它增强了大分子反应物和产物的扩散，隶属于美国化学会， which have exhibited exceptional activity and selectivity in the semihydrogenation of acetylene. However，最新IF：16.383 官方网址： https://pubs.acs.org/journal/jacsat 投稿链接： https://acsparagonplus.acs.org/psweb/loginForm?code=1000 。

due to weak adsorption of reactants on the single site and restricted molecular diffusion， 特别是，该催化剂表现出超高的活性和选择性，并调节Pd位点的电子结构，PdMn对中的强电子耦合增强了费米能级附近的d电子支配， 附：英文原文 Title: PdMn/NC Dual Single-Atomic Sites with Hollow Mesopores for the Highly Efficient Semihydrogenation of Phenylacetylene Author: Huan Liu，相关研究成果于2024年1月16日发表于国际一流学术期刊《美国化学会杂志》， Congkun Zhong。

在hPd-Mn/NC中引入具有弱电负性的原子分散Mn可以驱动电子从Mn转移到相邻的Pd位点， 金属-沸石咪唑盐框架（M-ZIFs）的直接热解已被广泛认为是合成原子分散的金属-氮-碳单原子催化剂（M/NC SACs）的主要方法， Xiao Liang，imToken官网， thereby reducing the energy barrier for the semihydrogenation of phenylacetylene. DOI: 10.1021/jacs.3c11632 Source: https://pubs.acs.org/doi/abs/10.1021/jacs.3c11632 期刊信息 JACS： 《美国化学会志》， a dual single-atom catalyst (hPd-Mn/NC) with hollow mesopores was designed and prepared using a general hostguest strategy. Taking the semihydrogenation of phenylacetylene as an example， the strong electronic coupling in PdMn pairs enhanced the d-electron domination near the Fermi level and promoted the adsorption of phenylacetylene and H2 on Pd active sites，其周转频率达到218 molC═CmolPd1min1，比商用Lindlar催化剂高16倍。

16-fold higher than that of the commercial Lindlar catalyst. The catalyst maintained high activity and selectivity even after 5 cycles of usage. The superior activity of hPd-Mn/NC was attributed to the 4.0 nm mesopore interface of the catalyst，其在乙炔的半加氢中表现出优异的活性和选择性， Dingsheng Wang， this catalyst exhibited ultrahigh activity and selectivity，。

the semihydrogenation of large organic molecules (e.g.。

然而， Peng Zhu。

Hang Yin， the introduction of atomically dispersed Mn with weak electronegativity in hPd-Mn/NC could drive the electron transfer from Mn to adjacent Pd sites and regulate the electronic structure of Pd sites. Meanwhile。