Single-Molecule Nanocatalysis Reveals Catalytic Activation Energy of Single Nanocatalysts

被引:67
作者
Chen, Tao [1 ,2 ,3 ]
Zhang, Yuwei [1 ,2 ]
Xu, Weilin [1 ,2 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, 5625 Renmin St, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, Jilin Prov Key Lab Low Carbon Chem Power, 5625 Renmin St, Changchun 130022, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
HETEROGENEOUS CATALYSIS; MATHEMATICAL ORIGINS; COMPENSATION; NANOPARTICLES; NANOCRYSTALS; OXIDATION; PLATINUM; DYNAMICS; ELECTRON; ERRORS;
D O I
10.1021/jacs.6b05600
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
By monitoring the temperature-dependent catalytic activity of single At nanocatalysts, for a fluorogenic reaction, we derive the activation energies via multiple methods for two sequential catalytic steps (product formation and dissociation), on single nanocatalysts. The wide distributions of activation energies across multiple individual nanocatalysts indicate a huge static heterogeneity among the individual nanocatalysts. The compensation effect and isokinetic relationship of catalytic reactions are observed at the single particle level. This study exemplifies another function of single-molecule nanocatalysis and improves our understanding of heterogeneous catalysis.
引用
收藏
页码:12414 / 12421
页数:8
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