DataVXACS Energy LettersPaper
journal article·2017-09-08

High-Valence-State NiO/Co3O4 Nanoparticles on Nitrogen-Doped Carbon for Oxygen Evolution at Low Overpotential

Muhammad Tahir, Lun Pan, Rongrong Zhang, Yi-Cheng Wang, Guoqiang Shen, Imran Aslam, M. A. Qadeer, Nasir Mahmood, Wei Xu, Li Wang, Xiangwen Zhang, Ji-Jun Zou

ACS Energy Letters· Volume 2· Issue 9
Publisher page
Source abstract

Abstract

The electrocatalytic oxygen evolution reaction (OER) plays a critical role in sustainable energy conversion and storage, but OER is severely hampered owing to the lack of highly efficient catalysts. Here, we report an efficient electrocatalyst, with NiO/Co 3 O 4 nanoparticles decorated on nitrogen-doped carbon (NiO/Co 3 O 4 @NC). Abundant high-valence Ni 3+ and Co 3+ species were observed on the surface of the hybrid due to the strong NC–metal oxide and NiO–Co 3 O 4 interactions. This unique structure leads to excellent OER performance, delivering a very low overpotential of 240 mV@10 mA·cm –2 on glassy carbon and 200 mV@10 mA·cm –2 on Ni foam in KOH and having a turnover frequency (@350 mV overpotential) 6 and 16 times higher than that of IrO 2 and RuO 2, respectively.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Collaborative Innovative Centre of Chemical Science and Engineering (Tianjin), Tianjin 300072, China

Department of Physics, The University of Lahore, Lahore, Pakistan

School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States

National Centre for Nanoscience and Technology, Chinese Academy of Science, Beijing, China

Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, CAS, Beijing, China

Funding

Natural Science Foundation of Tianjin City · Pakistan Science Foundation · National Natural Science Foundation of China

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