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The role of dissolution in the synthesis of high-activity organic nanocatalysts in a wet chemical reaction
Liu, L. J.1,2,3; Lai, Y. D.1,2,4; Li, H. H.1,2,3; Kang, L. T.1,2; Liu, J. J.1,2; Cao, Z. M.4; Yao, J. N.5
2017-05-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
Volume5Issue:17Pages:8029-8036
AbstractThe synthesis of high-activity nanocrystals (NCs) is a key factor in the field of nanocatalysis. By combining nucleation/growth with the dissolution of crystals in a reaction-diffusion system for the first time, we achieved a simple strategy for the one-step synthesis of high-activity uniform nanocatalysts without capping agents (CAs) via simply adjusting the reaction time of the wet chemical reaction (WCR). In this work, the shape evolution of hydrate tetraphenyl-porphyrin zinc (ZnTPP center dot H2O, ZnP) NCs was systematically studied during the reaction of their precursor with water. Regular, thermodynamic octahedral ZnP NCs can be synthesized at the 3rd hour, and typical rough step-type cuboctahedron NCs can be obtained after 3 days due to the occurrence of chemical dissolution in the multistep WCR. Our results reveal that the crystal dissolution process involves the disappearance of low-energy facets followed by the appearance of high-energy facets. Furthermore, ZnP/rubrene heterojunctions can be easily prepared based on the rough NCs. Compared with regular octahedral ZnP NCs and even nanosheets with more active {020} facets, the rough and heterostructured ZnP NCs exhibit higher performance in photocatalytic hydrogen evolution (PHE). These findings provide a convenient method to synthesize highly active nanocatalysts in a multistep WCR.
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/39066
Collection光化学实验室
Affiliation1.Chinese Acad Sci, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Peoples R China
2.Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Peoples R China
3.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Liu, L. J.,Lai, Y. D.,Li, H. H.,et al. The role of dissolution in the synthesis of high-activity organic nanocatalysts in a wet chemical reaction[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(17):8029-8036.
APA Liu, L. J..,Lai, Y. D..,Li, H. H..,Kang, L. T..,Liu, J. J..,...&Yao, J. N..(2017).The role of dissolution in the synthesis of high-activity organic nanocatalysts in a wet chemical reaction.JOURNAL OF MATERIALS CHEMISTRY A,5(17),8029-8036.
MLA Liu, L. J.,et al."The role of dissolution in the synthesis of high-activity organic nanocatalysts in a wet chemical reaction".JOURNAL OF MATERIALS CHEMISTRY A 5.17(2017):8029-8036.
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