Sugar Blowing-Induced Porous Cobalt Phosphide/Nitrogen-Doped Carbon Nanostructures with Enhanced Electrochemical Oxidation Performance toward Water and Other Small Molecules

Chengzhou Zhu; Shaofang Fu; Bo Z. Xu; Junhua Song; Qiurong Shi; Mark H. Engelhard; Xiaolin Li; Scott P. Beckman; Junming Sun; Dan Du; Yuehe Lin

doi:10.1002/smll.201700796

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Sugar Blowing-Induced Porous Cobalt Phosphide/Nitrogen-Doped Carbon Nanostructures with Enhanced Electrochemical Oxidation Performance toward Water and Other Small Molecules

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Sugar Blowing-Induced Porous Cobalt Phosphide/Nitrogen-Doped Carbon Nanostructures with Enhanced Electrochemical Oxidation Performance toward Water and Other Small Molecules

Chengzhou Zhu, Shaofang Fu, Bo Z. Xu, Junhua Song, Qiurong Shi, Mark H. Engelhard, Xiaolin Li, Scott P. Beckman, Junming Sun, Dan Du, …

Small (Weinheim an der Bergstrasse, Germany), Vol.13(33), pp.1-9

09/2017

DOI: https://doi.org/10.1002/smll.201700796

PMID: 28656598

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Abstract

Chemistry

Chemistry, Multidisciplinary

Chemistry, Physical

Materials Science, Multidisciplinary

Nanoscience & Nanotechnology

Physics, Applied

Physics, Condensed Matter

Science & Technology

Materials Science

Physical Sciences

Physics

Technology

Rational design of high active and robust nonprecious metal catalysts with excellent catalytic efficiency in oxygen evolution reaction (OER) is extremely vital for making the water splitting process more energy efficient and economical. Among these noble metal-free catalysts, transition-metal-based nanomaterials are considered as one of the most promising OER catalysts due to their relatively low-cost intrinsic activities, high abundance, and diversity in terms of structure and morphology. Herein, a facile sugar-blowing technique and low-temperature phosphorization are reported to generate 3D self-supported metal involved carbon nanostructures, which are termed as Co2P@Co/nitrogen-doped carbon (Co2P@Co/N-C). By capitalizing on the 3D porous nanostructures with high surface area, homogeneously dispersed active sites, the intimate interaction between active sites, and 3D N-doped carbon, the resultant Co2P@Co/N-C exhibits satisfying OER performance superior to CoO@Co/N-C, delivering 10 mA cm(-2) at overpotential of 0.32 V. It is worth noting that in contrast to the substantial current density loss of Ruo(2), Co2P@Co/N-C shows much enhanced catalytic activity during the stability test and a 1.8-fold increase in current density is observed after stability test. Furthermore, the obtained Co2P@Co/N-C can also be served as an excellent nonprecious metal catalyst for methanol and glucose electrooxidation in alkaline media, further extending their potential applications.

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Title: Sugar Blowing-Induced Porous Cobalt Phosphide/Nitrogen-Doped Carbon Nanostructures with Enhanced Electrochemical Oxidation Performance toward Water and Other Small Molecules
Creators: Chengzhou Zhu - Washington State University
Shaofang Fu - Washington State University
Bo Z. Xu - Washington State University
Junhua Song - Washington State University
Qiurong Shi - Washington State University
Mark H. Engelhard - Pacific Northwest National Laboratory
Xiaolin Li - Pacific Northwest National Laboratory
Scott P. Beckman - Washington State University
Junming Sun - Washington State University
Dan Du - Washington State University
Yuehe Lin - Washington State University
Publication Details: Small (Weinheim an der Bergstrasse, Germany), Vol.13(33), pp.1-9
Academic Unit: School of Mechanical and Materials Engineering
Publisher: Wiley
Number of pages: 9
Grant note: PNNL Washington State University Department of Energy's Office of Biological and Environmental Research; United States Department of Energy (DOE) DE-AC05-76RL01830 / DOE by Battelle; United States Department of Energy (DOE)
Identifiers: 99901227849601842
Language: English
Resource Type: Journal article