A Complementary Co−Ni Phosphide/Bimetallic Alloy‐Interspersed N‐Doped Graphene Electrocatalyst for Overall Alkaline Water Splitting

Paulraj Arunkumar; Sampath Gayathri; Jong Hun Han

doi:10.1002/cssc.202100116

journal article Feb 12, 2021

A Complementary Co−Ni Phosphide/Bimetallic Alloy‐Interspersed N‐Doped Graphene Electrocatalyst for Overall Alkaline Water Splitting

Paulraj Arunkumar

Sampath Gayathri Jong Hun Han

ChemSusChem Vol. 14 No. 8 pp. 1921-1935 · Wiley

View at Publisher Save 10.1002/cssc.202100116

Abstract

AbstractEchinops‐like bimetallic CoNiP−CoNi alloy is synthesized from a metal−organic framework (MOF) and serves as an efficient catalyst for the oxygen evolution reaction (OER), with a low overpotential of 300 mV in 1 M KOH at 10 mA cm−2 (η10). The cooperative effect of Ni and Co metal, as well as the interfacial properties of the integrated semiconducting phosphide/metallic alloy and electronic conductivity of the MOF‐derived carbon regulate the performance of the catalyst. Moreover, the bimetallic CoNiP/CoNi alloy catalyst is interspersed with N‐doped graphene, forming a triad catalyst that demonstrates superior activity towards the hydrogen evolution reaction (η10=150 mV) and excellent durability, owing to interfacial effects of the triad catalyst, large electrochemical active surface area, and enhanced conductivity from N‐doped graphene. The stability of the carbon‐containing catalyst during OER (oxidation) is altered by the high reactivity of heteroatom dopant. The assembled CoNiP/CoNi/N−RGO||CoNiP/CoNi water electrolyzer delivers a reasonable cell potential of 1.76 V at 10 mA cm−2. The synthesized bimetallic CoNiP/CoNi alloy‐based triad catalyst thus demonstrates excellent electrocatalytic activity and high durability suitable for efficient alkaline water splitting.

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References

77

[1]

10.1002/anie.201705617

[2]

10.1002/ange.201705617

[3]

10.1039/c6ta08075h

[4]

10.1021/acscatal.6b02479

[5]

10.1039/c4cs00470a

[6]

10.1002/adma.201806682

[7]

10.1002/adma.201503906

[8]

10.1002/aenm.201600087

[9]

10.1039/c7nr03515b

[10]

10.1039/c6ta09983a

[11]

10.1039/c8ta07197g

[12]

10.1021/jacs.6b01543

[13]

10.1039/c9nr07002h

[14]

10.1021/acsami.6b12189

[15]

10.1002/adfm.201703455

[16]

10.1039/c5ee03316k

[17]

10.1021/acsmaterialslett.0c00146

[18]

10.1016/j.jpowsour.2019.04.071

[19]

10.1038/s41467-019-13415-8

[20]

10.1016/j.electacta.2019.06.054

[21]

Identification of catalytic sites for oxygen reduction and oxygen evolution in N-doped graphene materials: Development of highly efficient metal-free bifunctional electrocatalyst

Hong Bin Yang, Jianwei Miao, Sung-Fu Hung et al.

Science Advances 10.1126/sciadv.1501122

[22]

10.1021/acsaem.9b01183

[23]

10.1063/1.3072333

[24]

10.1039/c7cc03558f

[25]

10.1002/celc.202000515

[26]

10.1039/c2jm35227c

[27]

10.1016/j.jechem.2015.11.009

[28]

10.1038/nature09579

[29]

10.1016/j.jcis.2018.07.044

[30]

Composition engineering of ZIF-derived cobalt phosphide/cobalt monoxide heterostructures for high-performance asymmetric supercapacitors

Sampath Gayathri, Paulraj Arunkumar, Dipankar Saha et al.

Journal of Colloid and Interface Science 10.1016/j.jcis.2020.11.129

[31]

10.1016/j.jcis.2020.08.096

[32]

10.1002/aenm.201901213

[33]

10.1016/j.ijhydene.2017.04.116

[34]

10.1016/j.apcatb.2014.09.016

[35]

10.1039/c7ra09272e

[36]

10.1039/c3ta10337d

[37]

10.1039/c6ra24094a

[38]

10.1021/la403366e

[39]

C sp2/sp3 hybridisations in carbon nanomaterials – XPS and (X)AES study

B. Lesiak, L. Kövér, J. Tóth et al.

Applied Surface Science 10.1016/j.apsusc.2018.04.269

[40]

Method for estimating ionicities of oxides using O1s photoelectron spectra

L. Q. Wu, Y. C. Li, S. Q. Li et al.

AIP Advances 10.1063/1.4931996

[41]

10.1063/1.4935042

[42]

10.1007/s00604-019-3491-9

[43]

Fe‐Doped Ni3C Nanodots in N‐Doped Carbon Nanosheets for Efficient Hydrogen‐Evolution and Oxygen‐Evolution Electrocatalysis

Haosen Fan, Hong Yu, Yufei Zhang et al.

Angewandte Chemie International Edition 10.1002/anie.201706610

[44]

10.1002/ange.201706610

[45]

Recent advances in transition metal phosphide nanomaterials: synthesis and applications in hydrogen evolution reaction

Yanmei Shi, Bin Zhang

Chemical Society Reviews 10.1039/c5cs00434a

[46]

10.1016/j.pnsc.2019.05.009

[47]

Versatile nanoporous bimetallic phosphides towards electrochemical water splitting

Yongwen Tan, Pan Liu, Yuhao Shen et al.

Energy Environ. Sci. 10.1039/c6ee01109h

[48]

10.1002/adma.201605502

[49]

10.1021/jacs.9b00154

[50]

10.1039/c8nr04776f

Showing 50 of 77 references

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References

Details

Published: Feb 12, 2021
Vol/Issue: 14(8)
Pages: 1921-1935
License: View

Authors

P

Paulraj Arunkumar

School of Chemical Engineering Chonnam National University 300 Yongbong-dong, Buk-gu Gwangju 61186 Republic of Korea

S

Sampath Gayathri

School of Chemical Engineering Chonnam National University 300 Yongbong-dong, Buk-gu Gwangju 61186 Republic of Korea

J

Jong Hun Han

School of Chemical Engineering Chonnam National University 300 Yongbong-dong, Buk-gu Gwangju 61186 Republic of Korea

Cite This Article

Paulraj Arunkumar, Sampath Gayathri, Jong Hun Han (2021). A Complementary Co−Ni Phosphide/Bimetallic Alloy‐Interspersed N‐Doped Graphene Electrocatalyst for Overall Alkaline Water Splitting. ChemSusChem, 14(8), 1921-1935. https://doi.org/10.1002/cssc.202100116

A Complementary Co−Ni Phosphide/Bimetallic Alloy‐Interspersed N‐Doped Graphene Electrocatalyst for Overall Alkaline Water Splitting

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