Insight into the Effect of the Core-Shell Microstructure on the Electrochemical Properties of Undoped 3D-Networked Conductive Diamond/Graphite

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	Insight into the Effect of the Core-Shell Microstructure on the Electrochemical Properties of Undoped 3D-Networked Conductive Diamond/Graphite
	Zhai, Zhaofeng; Huang, Nan; Yang, Bing; Wang, Chun; Liu, Lusheng; Qiu, Jianhang; Shi, Dan; Yuan, Ziyao; Lu, Zhigang; Song, Haozhe; Zhou, Meiqi; Chen, Bin; Jiang, Xin
	2019-03-14
Source Publication	JOURNAL OF PHYSICAL CHEMISTRY C
ISSN	1932-7447
Volume	123 Issue:10 Pages:6018-6029
Abstract	Microstructure engineering has aroused tremendous interest to tailor the electrochemical properties of an sp(3)/sp(2)-bonded carbon composite in the chemical sensing field. In this work, the undoped diamond/graphite (D/G) nanoplatelet is controllably synthesized without nitrogen/boron incorporation using microwave plasma chemical vapor deposition. Assisted with high-resolution transmission electron microscopy and conductive atomic force microscopy, it is revealed that the D/G composite is composed of an insulate diamond nanoplatelet stem encapsulated in highly conductive graphite shells. The three-dimensional (3D) conductive graphite edges possess high electrochemica activity, whereas the adjacent inactive diamond core could influence the adsorption of the reactant onto the graphite edges; thus, tunable electrochemical properties from the boron-doped diamond feature to the graphite feature are verified with the thickening of the surrounding graphite shells and the thinning of the diamond stem. Impressively, it is noteworthy that the undoped 3D networked D/G-8% nanoplatelet film, with a thick diamond stem encased into thin graphite shells (similar to 4 nm), demonstrates improved electrochemical activity while retaining the advantages of a wide potential window (3.18 V) and low background currents (127.6 mu F cm(-2)) as much as possible, holding great promise in electrochemical sensing fields. The D/G hybridized methodology herein paves a novel route toward designing a nanocarbon electrode with excellent electrochemical properties.
Indexed By	SCI
Language	英语
WOS ID	WOS:000461537400021
Publisher	AMER CHEMICAL SOC
Citation statistics
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/81285
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Zhai, Zhaofeng,Huang, Nan,Yang, Bing,et al. Insight into the Effect of the Core-Shell Microstructure on the Electrochemical Properties of Undoped 3D-Networked Conductive Diamond/Graphite[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2019,123(10):6018-6029.
APA	Zhai, Zhaofeng.,Huang, Nan.,Yang, Bing.,Wang, Chun.,Liu, Lusheng.,...&Jiang, Xin.(2019).Insight into the Effect of the Core-Shell Microstructure on the Electrochemical Properties of Undoped 3D-Networked Conductive Diamond/Graphite.JOURNAL OF PHYSICAL CHEMISTRY C,123(10),6018-6029.
MLA	Zhai, Zhaofeng,et al."Insight into the Effect of the Core-Shell Microstructure on the Electrochemical Properties of Undoped 3D-Networked Conductive Diamond/Graphite".JOURNAL OF PHYSICAL CHEMISTRY C 123.10(2019):6018-6029.

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