Plasmon-induced dehydrogenation of formic acid on Pd-dotted Ag@Au hexagonal nanoplates and single-particle study
Plasmon-induced dehydrogenation of formic acid on Pd-dotted Ag@Au hexagonal nanoplates and single-particle study
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Pd点Ag@Au六方纳米片上等离激元诱导甲酸脱氢及单粒子研究
DOI:
10.1016/j.apcatb.2020.119226
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发表时间:
2020-11
期刊:
影响因子:
--
通讯作者:
Baibiao Huang
中科院分区:
文献类型:
--
作者:
Fengxia Tong;Zaizhu Lou;Xizhuang Liang;Fahao Ma;Weijie Chen;Zeyan Wang;Yuanyuan Liu;Peng Wang;Hefeng Cheng;Ying Dai;Zhaoke Zheng;Baibiao Huang
Plasmonic nanostructures can be used to drive the commercial catalytic reactions under mild conditions by the surface plasmon resonance (SPR). Herein, heterostructural Pd-dotted Ag@Au hexagonal nanoplates (HNPs) are synthesized via an anisotropic growth process, which exhibit 100 % H2selectivity, highly enhanced catalytic activity (1062 h−1at 0 °C) for formic acid dehydrogenation by utilizing the light energy. The plasmon-induced mechanism was studied by single-particle photoluminescence (PL) and finite difference time domain (FDTD) simulation. The enhanced interaction between the HCOOH molecules and the catalysts resulting from the surface charge heterogeneity and sharp field-gradient near the Pd-dots region, and bond activation via SPR-enhanced local electromagnetic field are the main contributions for the SPR-induced catalysis. The findings provide a promising approach for the design of hybrid plasmonic photocatalysts to drive harsh chemical conversion at mild conditions.
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