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Journal of Nanoparticle Research
Erschienen in: Journal of Nanoparticle Research 3/2014

01.03.2014 | Research Paper

A one-pot hydrothermal synthesis of 3D nitrogen-doped graphene aerogels-supported NiS2 nanoparticles as efficient electrocatalysts for the oxygen-reduction reaction

verfasst von: Wen-Jing Yuan, Ju-Chuan Li, Ping Chen, Yu-Hua Shen, An-Jian Xie

Erschienen in: Journal of Nanoparticle Research | Ausgabe 3/2014

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Abstract

Nitrogen-doped graphene aerogels-supported NiS2 nanoparticles (NiS2/NG) were synthesized by a one-pot hydrothermal method. In the process, l-cysteine was used not only as the nitrogen source to form the nitrogen-doped graphene aerogels, but also the sulfur source to form NiS2. The nitrogen-doped graphene (NG) hybrids show an interconnected reticulation of NG sheets with uniform deposition of NiS2 NPs, and the NiS2 NPs are deposited on the NG layers. In studying the effects of the NG and NiS2/NG for the ORR, we found that NiS2/NG shows a more positive onset potential, higher current density, and higher electron transfer number (∼4) for the oxygen-reduction reaction (ORR) in alkaline media than NG. Furthermore, NiS2/NG shows better durability and methanol tolerance than the commercial Pt/C catalyst.
Vorheriger Artikel The effect of substrate distance to evaporation source on morphology of ZnO:In nanorods fabricated by means of a vapor transfer route and the study of their optical and electrical properties
Nächster Artikel Exothermic surface reactions in alumina–aluminum shell–core nanoparticles with iodine oxide decomposition fragments

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Metadaten
Titel
A one-pot hydrothermal synthesis of 3D nitrogen-doped graphene aerogels-supported NiS2 nanoparticles as efficient electrocatalysts for the oxygen-reduction reaction
verfasst von
Wen-Jing Yuan
Ju-Chuan Li
Ping Chen
Yu-Hua Shen
An-Jian Xie
Publikationsdatum
01.03.2014
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 3/2014
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-014-2311-8

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