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Porous nickel disulfide/reduced graphene oxide nanohybrids with improved electrocatalytic performance for hydrogen evolution

Paper ID Volume ID Publish Year Pages File Format Full-Text
49234 46726 2016 4 PDF Available
Title
Porous nickel disulfide/reduced graphene oxide nanohybrids with improved electrocatalytic performance for hydrogen evolution
Abstract

•Porous NiS2 and NiS2/rGO were prepared by a one-pot hydrothermal process.•The rich active sites of NiS2 from porous structures can promote the HER activity.•Coupled with graphene, the HER activity of composites is further promoted.•Negligible decay in activity is found after 3000 cycles for NiS2/rGO sample.

Single porous nickel disulfide (NiS2) nanoballs and nanohybrids of NiS2 with reduced graphene oxide (NiS2/rGO) were successfully prepared by a simple hydrothermal process in the absence or presence of graphene oxide. NiS2/rGO nanocomposites exhibit remarkable electrocatalytic performance for hydrogen evolution from water splitting due to the plentiful active sites in the porous NiS2, the improved conductivity and the positive synergetic effect between NiS2 and rGO. The nanocomposites displayed superior activity for the hydrogen evolution reaction (10 mA cm− 2 vs. − 200 mV, Tafel slope of 52 mV dec− 1) and an excellent electrocatalytic stability.

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Keywords
NiS2; Porous; Nanocomposites; Electrocatalytic; Hydrogen evolution
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Porous nickel disulfide/reduced graphene oxide nanohybrids with improved electrocatalytic performance for hydrogen evolution
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 85, 5 October 2016, Pages 26–29
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us