State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences
University of Chinese Academy of Sciences

研究采用浸渍还原法制备了碳修饰的二氧化钛负载的Ni纳米颗粒催化剂，在苯乙炔选择性加氢反应中表现出良好的光催化性能。Ni纳米颗粒在可见光激发下产生高能“热电子”促进了反应底物的解离和活化。富电子态的Ni纳米颗粒抑制了苯乙烯在Ni/TiO2表面的吸附，提高了苯乙烯的选择性。本工作为光催化苯乙炔选择性加氢反应提供了一种绿色且高效的方法。

It is a great challenge for the selective hydrogenation of phenylacetylene to styrene over non-noble metal catalyst under mild reaction conditions. Carbon-modified TiO2 supported nickel nanoparticles catalyst was prepared using impregnation-reduction method, which exhibited excellent photocatalytic performance in selective hydrogenation of phenylacetylene under visible light irradiation. The photo-excited hot electrons over Ni nanoparticles promoted the activation of reactants. The electron-rich Ni nanoparticles inhibited the adsorption of phenylethylene on the surface of Ni/TiO2, which increased the selectivity of phenylethylene. This work provides an environmentally-benign and efficient method for photocatalytic hydrogenation of phenylacetylene.

国家自然科学基金（22072176）和山西省基础研究计划项目（20210302123012）资助

王靖, 王瑞义, 张晋, 李新成, 王云伟, 郑占丰. 表面等离激元增强Ni/TiO2光催化苯乙炔选择性加氢[J]. 燃料化学学报（中英文）, 2023, 51(12): 1834-1842.

WANG Jing, WANG Rui-yi, ZHANG Jin, LI Xin-cheng, WANG Yun-wei, ZHENG Zhan-feng. Plasmon-enhanced photocatalytic selective hydrogenation of phenylacetylene over Ni/TiO2 catalysts[J]. Journal of Fuel Chemistry and Technology, 2023, 51(12): 1834-1842.