Highly Durable and Efficient Ni-FeOx/FeNi3 Electrocatalysts Synthesized by a Facile In Situ Combustion-Based Method for Overall Water Splitting with Large Current Densities

Abdul Qayum; Xiang Peng; Jianfa Yuan; Yuanduo Qu; Jianhong Zhou; Zanling Huang; Hong Xia; Zhi Liu; Daniel Qi Tan; Paul K. Chu; Fushen Lu; Liangsheng Hu

doi:10.1021/acsami.2c04562

Highly Durable and Efficient Ni-FeO_x/FeNi₃ Electrocatalysts Synthesized by a Facile In Situ Combustion-Based Method for Overall Water Splitting with Large Current Densities

Abdul Qayum, Xiang Peng, Jianfa Yuan, Yuanduo Qu, Jianhong Zhou, Zanling Huang, Hong Xia, Zhi Liu, Daniel Qi Tan, Paul K. Chu, Fushen Lu, Liangsheng Hu

Materials Science and Engineering

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

34 Scopus citations

Abstract

Ni-/Fe-based materials are promising electrocatalysts for the oxygen evolution reaction (OER) but usually are not suitable for the hydrogen evolution reaction (HER). Herein, a durable and bifunctional catalyst consisting of Ni-FeOx and FeNi3 is prepared on nickel foam (Ni-FeOx/FeNi3/NF) by in situ solution combustion and subsequent calcination to accomplish efficient alkaline water splitting. Density functional theory (DFT) calculation shows that the high HER activity is attributed to the strong electronic coupling effects between FeOx and FeNi3 in the Janus nanoparticles by modulating ΔGH* and electronic states. Consequently, small overpotentials (η) of 71 and 272 mV in HER and 269 and 405 mV in OER yield current densities (j) of 50 and 1000 mA cm–2, respectively. The catalyst shows outstanding stability for 280 and 200 h in HER and OER at a j of ∼50 mA cm–2. Also, the robustness and mechanical stability of the electrode at an elevated j of ∼500 mA cm–2 are excellent. Moreover, Ni-FeOx/FeNi3/NF shows excellent water splitting activities as a bifunctional catalyst as exemplified by j of 50 and 500 mA cm–2 at cell voltages of 1.58 and 1.80 V, respectively. The Ni-FeOx/FeNi3/NF structure synthesized by the novel, simple, and scalable strategy has large potential in commercial water electrolysis, and the in situ combustion method holds great promise in the fabrication of thin-film electrodes for different applications.

Original language	English
Pages (from-to)	27842-27853
Journal	ACS applied materials & interfaces
DOIs	https://doi.org/10.1021/acsami.2c04562
State	Published - 10 Jun 2022

Keywords

hydrogen evolution reaction
oxygen evolution reaction
Janus nanoparticles
FeOx/FeNi3
electrocatalysts
bifunctional electrocatalysts
in situ combustion method

UN SDGs

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

Access to Document

10.1021/acsami.2c04562

Cite this

Qayum, A., Peng, X., Yuan, J., Qu, Y., Zhou, J., Huang, Z., Xia, H., Liu, Z., Tan, D. Q., Chu, P. K., Lu, F., & Hu, L. (2022). Highly Durable and Efficient Ni-FeO_x/FeNi₃ Electrocatalysts Synthesized by a Facile In Situ Combustion-Based Method for Overall Water Splitting with Large Current Densities. ACS applied materials & interfaces, 27842-27853. https://doi.org/10.1021/acsami.2c04562

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title = "Highly Durable and Efficient Ni-FeOx/FeNi3 Electrocatalysts Synthesized by a Facile In Situ Combustion-Based Method for Overall Water Splitting with Large Current Densities",

abstract = "Ni-/Fe-based materials are promising electrocatalysts for the oxygen evolution reaction (OER) but usually are not suitable for the hydrogen evolution reaction (HER). Herein, a durable and bifunctional catalyst consisting of Ni-FeOx and FeNi3 is prepared on nickel foam (Ni-FeOx/FeNi3/NF) by in situ solution combustion and subsequent calcination to accomplish efficient alkaline water splitting. Density functional theory (DFT) calculation shows that the high HER activity is attributed to the strong electronic coupling effects between FeOx and FeNi3 in the Janus nanoparticles by modulating ΔGH* and electronic states. Consequently, small overpotentials (η) of 71 and 272 mV in HER and 269 and 405 mV in OER yield current densities (j) of 50 and 1000 mA cm–2, respectively. The catalyst shows outstanding stability for 280 and 200 h in HER and OER at a j of ∼50 mA cm–2. Also, the robustness and mechanical stability of the electrode at an elevated j of ∼500 mA cm–2 are excellent. Moreover, Ni-FeOx/FeNi3/NF shows excellent water splitting activities as a bifunctional catalyst as exemplified by j of 50 and 500 mA cm–2 at cell voltages of 1.58 and 1.80 V, respectively. The Ni-FeOx/FeNi3/NF structure synthesized by the novel, simple, and scalable strategy has large potential in commercial water electrolysis, and the in situ combustion method holds great promise in the fabrication of thin-film electrodes for different applications.",

keywords = "hydrogen evolution reaction, oxygen evolution reaction, Janus nanoparticles, FeOx/FeNi3, electrocatalysts, bifunctional electrocatalysts, in situ combustion method",

author = "Abdul Qayum and Xiang Peng and Jianfa Yuan and Yuanduo Qu and Jianhong Zhou and Zanling Huang and Hong Xia and Zhi Liu and Tan, {Daniel Qi} and Chu, {Paul K.} and Fushen Lu and Liangsheng Hu",

year = "2022",

month = jun,

day = "10",

doi = "10.1021/acsami.2c04562",

language = "英语",

pages = "27842--27853",

journal = "ACS applied materials & interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

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Qayum, A, Peng, X, Yuan, J, Qu, Y, Zhou, J, Huang, Z, Xia, H, Liu, Z, Tan, DQ, Chu, PK, Lu, F & Hu, L 2022, 'Highly Durable and Efficient Ni-FeO_x/FeNi₃ Electrocatalysts Synthesized by a Facile In Situ Combustion-Based Method for Overall Water Splitting with Large Current Densities', ACS applied materials & interfaces, pp. 27842-27853. https://doi.org/10.1021/acsami.2c04562

TY - JOUR

T1 - Highly Durable and Efficient Ni-FeOx/FeNi3 Electrocatalysts Synthesized by a Facile In Situ Combustion-Based Method for Overall Water Splitting with Large Current Densities

AU - Qayum, Abdul

AU - Peng, Xiang

AU - Yuan, Jianfa

AU - Qu, Yuanduo

AU - Zhou, Jianhong

AU - Huang, Zanling

AU - Xia, Hong

AU - Liu, Zhi

AU - Tan, Daniel Qi

AU - Chu, Paul K.

AU - Lu, Fushen

AU - Hu, Liangsheng

PY - 2022/6/10

Y1 - 2022/6/10

N2 - Ni-/Fe-based materials are promising electrocatalysts for the oxygen evolution reaction (OER) but usually are not suitable for the hydrogen evolution reaction (HER). Herein, a durable and bifunctional catalyst consisting of Ni-FeOx and FeNi3 is prepared on nickel foam (Ni-FeOx/FeNi3/NF) by in situ solution combustion and subsequent calcination to accomplish efficient alkaline water splitting. Density functional theory (DFT) calculation shows that the high HER activity is attributed to the strong electronic coupling effects between FeOx and FeNi3 in the Janus nanoparticles by modulating ΔGH* and electronic states. Consequently, small overpotentials (η) of 71 and 272 mV in HER and 269 and 405 mV in OER yield current densities (j) of 50 and 1000 mA cm–2, respectively. The catalyst shows outstanding stability for 280 and 200 h in HER and OER at a j of ∼50 mA cm–2. Also, the robustness and mechanical stability of the electrode at an elevated j of ∼500 mA cm–2 are excellent. Moreover, Ni-FeOx/FeNi3/NF shows excellent water splitting activities as a bifunctional catalyst as exemplified by j of 50 and 500 mA cm–2 at cell voltages of 1.58 and 1.80 V, respectively. The Ni-FeOx/FeNi3/NF structure synthesized by the novel, simple, and scalable strategy has large potential in commercial water electrolysis, and the in situ combustion method holds great promise in the fabrication of thin-film electrodes for different applications.

AB - Ni-/Fe-based materials are promising electrocatalysts for the oxygen evolution reaction (OER) but usually are not suitable for the hydrogen evolution reaction (HER). Herein, a durable and bifunctional catalyst consisting of Ni-FeOx and FeNi3 is prepared on nickel foam (Ni-FeOx/FeNi3/NF) by in situ solution combustion and subsequent calcination to accomplish efficient alkaline water splitting. Density functional theory (DFT) calculation shows that the high HER activity is attributed to the strong electronic coupling effects between FeOx and FeNi3 in the Janus nanoparticles by modulating ΔGH* and electronic states. Consequently, small overpotentials (η) of 71 and 272 mV in HER and 269 and 405 mV in OER yield current densities (j) of 50 and 1000 mA cm–2, respectively. The catalyst shows outstanding stability for 280 and 200 h in HER and OER at a j of ∼50 mA cm–2. Also, the robustness and mechanical stability of the electrode at an elevated j of ∼500 mA cm–2 are excellent. Moreover, Ni-FeOx/FeNi3/NF shows excellent water splitting activities as a bifunctional catalyst as exemplified by j of 50 and 500 mA cm–2 at cell voltages of 1.58 and 1.80 V, respectively. The Ni-FeOx/FeNi3/NF structure synthesized by the novel, simple, and scalable strategy has large potential in commercial water electrolysis, and the in situ combustion method holds great promise in the fabrication of thin-film electrodes for different applications.

KW - hydrogen evolution reaction

KW - oxygen evolution reaction

KW - Janus nanoparticles

KW - FeOx/FeNi3

KW - electrocatalysts

KW - bifunctional electrocatalysts

KW - in situ combustion method

U2 - 10.1021/acsami.2c04562

DO - 10.1021/acsami.2c04562

M3 - 文章

C2 - 35686853

SN - 1944-8244

SP - 27842

EP - 27853

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

ER -