Synthesis of ultrathin Ni nanosheets for semihydrogenation of phenylacetylene to styrene under mild conditions

doi:10.1039/c8nr00532j

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis of ultrathin Ni nanosheets for semihydrogenation of phenylacetylene to styrene under mild conditions
	Yu, Jing-Wen 1; Wang, Xin-Yu 1; Yuan, Chen-Yue 1; Li, Wei-Zhen 2; Wang, Yu-Hao 1; Zhang, Ya-Wen 1
刊名	NANOSCALE
	2018-04-21
卷号	10 期号:15 页码:6936-6944
ISSN号	2040-3364
DOI	10.1039/c8nr00532j
英文摘要	The synthesis of ultrathin metal nanosheets (NSs) attracts broad scientific and technological interest, and it still remains a challenge for non-noble metals like nickel due to their intrinsic cubic symmetry and high surface energy. Herein, we report a NiO intermediated solvothermal method towards the synthesis of ultrathin Ni NSs (thickness < 3 nm) using N, N-dimethylformamide as the solvent and n-butylamine as the shape controlling reagent. The growth of the ultrathin Ni NSs follows an intermediate mechanism which was proved by the results obtained by means of transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray absorption spectra (XAS) and X-ray photoelectron spectroscopy (XPS). Under solvothermal conditions, the nickel acetylacetonate precursor was first reduced to a NiO NS intermediate, then reduction occurred and NiO NSs were reduced to Ni NSs. The synthesized ultrathin Ni NSs predominately in a metallic state showed high selectivity (88.0-92.0%) towards styrene (ST) in the phenylacetylene (PA) semihydrogenation reaction under mild conditions (323 K, 1 atm of hydrogen) in a broad PA conversion range (2.0-98.0%). The low coverage of oxygen atoms on the Ni NS surface is proposed to account for the high ST selectivity, as indicated by density functional theory (DFT) calculations.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000430537200021
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43199]
专题	中国科学院化学研究所
通讯作者	Zhang, Ya-Wen
作者单位	1.Peking Univ, BNLMS, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Future Sci & Technol City, Natl Inst Clean & Low Carbon Energy, Beijing 102211, Peoples R China
推荐引用方式 GB/T 7714	Yu, Jing-Wen,Wang, Xin-Yu,Yuan, Chen-Yue,et al. Synthesis of ultrathin Ni nanosheets for semihydrogenation of phenylacetylene to styrene under mild conditions[J]. NANOSCALE,2018,10(15):6936-6944.
APA	Yu, Jing-Wen,Wang, Xin-Yu,Yuan, Chen-Yue,Li, Wei-Zhen,Wang, Yu-Hao,&Zhang, Ya-Wen.(2018).Synthesis of ultrathin Ni nanosheets for semihydrogenation of phenylacetylene to styrene under mild conditions.NANOSCALE,10(15),6936-6944.
MLA	Yu, Jing-Wen,et al."Synthesis of ultrathin Ni nanosheets for semihydrogenation of phenylacetylene to styrene under mild conditions".NANOSCALE 10.15(2018):6936-6944.