Abstract
Engineering of controlled hybrid nanocomposites creates one of the most exciting applications in the fields of energy materials and environmental science. The rational design and in situ synthesis of hierarchical porous nanocomposite sheets of nitrogen‐doped graphene oxide (NGO) and nickel sulfide (Ni7S6) derived from a hybrid of a well‐known nickel‐based metal‐organic framework (NiMOF‐74) using thiourea as a sulfur source are reported here. The nanoporous NGO/MOF composite is prepared through a solvothermal process in which Ni(II) metal centers of the MOF structure are chelated with nitrogen and oxygen functional groups of NGO. NGO/Ni7S6 exhibits bifunctional activity, capable of catalyzing both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) with excellent stability in alkaline electrolytes, due to its high surface area, high pore volume, and tailored reaction interface enabling the availability of active nickel sites, mass transport, and gas release. Depending on the nitrogen doping level, the properties of graphene oxide can be tuned toward, e.g., enhanced stability of the composite compared to commonly used RuO2 under OER conditions. Hence, this work opens the door for the development of effective OER/HER electrocatalysts based on hierarchical porous graphene oxide composites with metal chalcogenides, which may replace expensive commercial catalysts such as RuO2 and IrO2.
Bibliography
Jayaramulu, K., Masa, J., Tomanec, O., Peeters, D., Ranc, V., Schneemann, A., Zboril, R., Schuhmann, W., & Fischer, R. A. (2017). Nanoporous NitrogenâDoped Graphene Oxide/Nickel Sulfide Composite Sheets Derived from a MetalâOrganic Framework as an Efficient Electrocatalyst for Hydrogen and Oxygen Evolution. Advanced Functional Materials, 27(33). Portico.
Authors
9
- Kolleboyina Jayaramulu (first)
- Justus Masa (additional)
- Ondrej Tomanec (additional)
- Daniel Peeters (additional)
- Vaclav Ranc (additional)
- Andreas Schneemann (additional)
- Radek Zboril (additional)
- Wolfgang Schuhmann (additional)
- Roland A. Fischer (additional)
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60
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Dates
Type | When |
---|---|
Created | 8 years, 1 month ago (July 3, 2017, 8:24 a.m.) |
Deposited | 1 year, 11 months ago (Sept. 17, 2023, 10:21 p.m.) |
Indexed | 3 days, 21 hours ago (Aug. 29, 2025, 6:17 a.m.) |
Issued | 8 years, 1 month ago (July 3, 2017) |
Published | 8 years, 1 month ago (July 3, 2017) |
Published Online | 8 years, 1 month ago (July 3, 2017) |
Published Print | 8 years ago (Sept. 1, 2017) |
Funders
3
Bundesministerium für Bildung und Forschung
10.13039/501100002347
Region: Europe
gov (National government)
Labels
2
- Federal Ministry of Education and Research
- BMBF
Awards
1
- FKZ 03SF0497B
Ministerstvo Školství, Mládeže a Tělovýchovy
10.13039/501100001823
Region: Europe
gov (National government)
Labels
4
- The Ministry of Education, Youth and Sports
- MŠMT
- MŠMT
- MEYS
Awards
1
- LO1305
Ministerstvo Školství, Mládeže a Tělovýchovy
10.13039/501100001823
Region: Europe
gov (National government)
Labels
4
- The Ministry of Education, Youth and Sports
- MŠMT
- MŠMT
- MEYS
Awards
1
- LM2015073
@article{Jayaramulu_2017, title={Nanoporous Nitrogen‐Doped Graphene Oxide/Nickel Sulfide Composite Sheets Derived from a Metal‐Organic Framework as an Efficient Electrocatalyst for Hydrogen and Oxygen Evolution}, volume={27}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.201700451}, DOI={10.1002/adfm.201700451}, number={33}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Jayaramulu, Kolleboyina and Masa, Justus and Tomanec, Ondrej and Peeters, Daniel and Ranc, Vaclav and Schneemann, Andreas and Zboril, Radek and Schuhmann, Wolfgang and Fischer, Roland A.}, year={2017}, month=jul }