Nanostructured nickel ferrite embedded in reduced graphene oxide for electrocatalytic hydrogen evolution reaction

Ayan Mukherjee; Sankalpita Chakrabarty; Wei Nien Su; Suddhasatwa Basu

doi:10.1016/j.mtener.2018.03.004

Nanostructured nickel ferrite embedded in reduced graphene oxide for electrocatalytic hydrogen evolution reaction

Ayan Mukherjee, Sankalpita Chakrabarty, Wei Nien Su, Suddhasatwa Basu

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

A non-noble metal electrocatalyst, nickel ferrite (NFO) having average particle size of 10.5 nm embedded onto the reduced graphene oxide (RGO) sheet, has been developed towards hydrogen evolution reaction (HER) in acidic medium. The phase purity and chemical coupling of NFO with RGO are established through X-ray diffraction, Raman and X-ray photoelectron spectroscopy studies. The NFO/RGO catalyst exhibits superior HER activity than bare NFO and other reported catalysts such as sulfides, carbides, phosphides, bimetals of molybdenum and iron-cobalt. A low onset overpotential of 5 mV (vs. RHE) with high cathodic current density, low Tafel slope of 58 mV dec⁻¹, low charge transfer resistance of 10.2 Ω, 99% Faradaic efficiency and turnover frequency of 0.48 s⁻¹ is obtained by virtue of mixed valent states of Fe, high specific surface area (109 m² g⁻¹), excellent coupling between NFO and the RGO sheet creating oxygen vacancy.

Original language	English
Pages (from-to)	118-124
Number of pages	7
Journal	Materials Today Energy
Volume	8
DOIs	https://doi.org/10.1016/j.mtener.2018.03.004
State	Published - Jun 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Funding

The authors would like to acknowledge financial support of Department of Science and Technology (DST) and facility supports from the Nanoscale Research Facility, IIT Delhi and National Taiwan University of Science and Technology (NTUST) . A. Mukherjee ( PDF/2016/003476 ) and S. Chakrabarty ( PDF/2015/000025 ) is thankful to Science and Engineering Research Board (SERB), Govt. of India for providing NPDF. The authors would like to acknowledge financial support of Department of Science and Technology (DST) and facility supports from the Nanoscale Research Facility, IIT Delhi and National Taiwan University of Science and Technology (NTUST). A. Mukherjee (PDF/2016/003476) and S. Chakrabarty (PDF/2015/000025) is thankful to Science and Engineering Research Board (SERB), Govt. of India for providing NPDF.

Funders	Funder number
Science and Engineering Research Board	PDF/2016/003476, PDF/2015/000025
Department of Science and Technology, Government of Kerala
Indian Institute of Technology Delhi
National Taiwan University of Science and Technology

Keywords

Electrocatalyst
Hydrogen evolution reaction
Nanoparticles
Nickel ferrite
Reduced graphene oxide

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.mtener.2018.03.004

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abstract = "A non-noble metal electrocatalyst, nickel ferrite (NFO) having average particle size of 10.5 nm embedded onto the reduced graphene oxide (RGO) sheet, has been developed towards hydrogen evolution reaction (HER) in acidic medium. The phase purity and chemical coupling of NFO with RGO are established through X-ray diffraction, Raman and X-ray photoelectron spectroscopy studies. The NFO/RGO catalyst exhibits superior HER activity than bare NFO and other reported catalysts such as sulfides, carbides, phosphides, bimetals of molybdenum and iron-cobalt. A low onset overpotential of 5 mV (vs. RHE) with high cathodic current density, low Tafel slope of 58 mV dec−1, low charge transfer resistance of 10.2 Ω, 99% Faradaic efficiency and turnover frequency of 0.48 s−1 is obtained by virtue of mixed valent states of Fe, high specific surface area (109 m2 g−1), excellent coupling between NFO and the RGO sheet creating oxygen vacancy.",

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author = "Ayan Mukherjee and Sankalpita Chakrabarty and Su, {Wei Nien} and Suddhasatwa Basu",

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year = "2018",

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doi = "10.1016/j.mtener.2018.03.004",

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N2 - A non-noble metal electrocatalyst, nickel ferrite (NFO) having average particle size of 10.5 nm embedded onto the reduced graphene oxide (RGO) sheet, has been developed towards hydrogen evolution reaction (HER) in acidic medium. The phase purity and chemical coupling of NFO with RGO are established through X-ray diffraction, Raman and X-ray photoelectron spectroscopy studies. The NFO/RGO catalyst exhibits superior HER activity than bare NFO and other reported catalysts such as sulfides, carbides, phosphides, bimetals of molybdenum and iron-cobalt. A low onset overpotential of 5 mV (vs. RHE) with high cathodic current density, low Tafel slope of 58 mV dec−1, low charge transfer resistance of 10.2 Ω, 99% Faradaic efficiency and turnover frequency of 0.48 s−1 is obtained by virtue of mixed valent states of Fe, high specific surface area (109 m2 g−1), excellent coupling between NFO and the RGO sheet creating oxygen vacancy.

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Nanostructured nickel ferrite embedded in reduced graphene oxide for electrocatalytic hydrogen evolution reaction

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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