NDLI: One-step hydrothermal synthesis of NiCo<sub>2</sub>S<sub>4</sub>–rGO as an efficient electrocatalyst for the oxygen reduction reaction

Content Provider	Royal Society of Chemistry (RSC)
Author	Ma, Zhaoling Ouyang, Canbin Shen, Anli Dou, Shuo Wang, Xin Wang, Shuangyin Wu, Jianghong
Copyright Year	2014
Abstract	In this work, for the first time, we have developed a one-step hydrothermal method to synthesize a hybrid material consisting of NiCo2S4 nanocrystals grown on reduced graphene oxide as an efficient nonprecious electrocatalyst for the oxygen reduction reaction (ORR) in alkaline medium. Our synthetic process here is quite simple, straightforward and environmentally benign. NiCo2S4–rGO shows significantly enhanced catalytic activity over rGO and NiCo2O4–rGO, and close reduction activity but much superior methanol tolerance and better durability than the commercial Pt/C catalyst. The half wave potential (E1/2) for the NiCo2S4–rGO hybrid is only about 62 mV more negative than that of the commercial Pt/C catalyst but 81 mV more positive than that of NiCo2O4–rGO, 116 mV than that of rGO. The superior performance of NiCo2S4–rGO is presumably attributed to a combination effect of mixed valence in transition metal composites favorable for O2 to be absorbed/reduced and a synergetic effect resulting from NiCo2S4 and rGO. The advantages over NiCo2O4–rGO might be ascribed to the inverse spinel crystal structure of NiCo2S4, its relative higher conductivity, and the fact that Na2S serves both as the S source and reducing agent facilitating an increase in the hybrid catalytic activity.
Starting Page	20990
Ending Page	20995
Page Count	6
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	2
Issue Number	48
Journal	Journal of Materials Chemistry A
DOI	10.1039/c4ta05159a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydrothermal synthesis Graphene Redox Methanol Transition metal Oxygen Spinel
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

One-step hydrothermal synthesis of NiCo2S4–rGO as an efficient electrocatalyst for the oxygen reduction reaction

Molybdenum-doped mesoporous carbon/graphene composites as efficient electrocatalysts for the oxygen reduction reaction

Microbe-engaged synthesis of carbon dot-decorated reduced graphene oxide as high-performance oxygen reduction catalysts

Gold nanodendrities on graphene oxide nanosheets for oxygen reduction reaction

Electrospun ZIF-based hierarchical carbon fiber as an efficient electrocatalyst for the oxygen reduction reaction

Potential of metal-free “graphene alloy” as electrocatalysts for oxygen reduction reaction

Monodisperse and self-assembled Pt-Cu nanoparticles as an efficient electrocatalyst for the methanol oxidation reaction

A high-performance electrocatalyst for oxygen reduction based on reduced graphene oxide modified with oxide nanoparticles, nitrogen dopants, and possible metal-N-C sites

Monodisperse cobalt sulfides embedded within nitrogen-doped carbon nanoflakes: an efficient and stable electrocatalyst for the oxygen reduction reaction

One-step hydrothermal synthesis of NiCo₂S₄–rGO as an efficient electrocatalyst for the oxygen reduction reaction

Similar Documents

One-step hydrothermal synthesis of NiCo2S4–rGO as an efficient electrocatalyst for the oxygen reduction reaction

Molybdenum-doped mesoporous carbon/graphene composites as efficient electrocatalysts for the oxygen reduction reaction

Microbe-engaged synthesis of carbon dot-decorated reduced graphene oxide as high-performance oxygen reduction catalysts

Gold nanodendrities on graphene oxide nanosheets for oxygen reduction reaction

Electrospun ZIF-based hierarchical carbon fiber as an efficient electrocatalyst for the oxygen reduction reaction

Potential of metal-free “graphene alloy” as electrocatalysts for oxygen reduction reaction

Monodisperse and self-assembled Pt-Cu nanoparticles as an efficient electrocatalyst for the methanol oxidation reaction

A high-performance electrocatalyst for oxygen reduction based on reduced graphene oxide modified with oxide nanoparticles, nitrogen dopants, and possible metal-N-C sites

Monodisperse cobalt sulfides embedded within nitrogen-doped carbon nanoflakes: an efficient and stable electrocatalyst for the oxygen reduction reaction

One-step hydrothermal synthesis of NiCo2S4–rGO as an efficient electrocatalyst for the oxygen reduction reaction

One-step hydrothermal synthesis of NiCo₂S₄–rGO as an efficient electrocatalyst for the oxygen reduction reaction