Single platinum atoms implanted 2D lateral anion-intercalated metal hydroxides of Ni2(OH)2(NO3)2 as efficient catalyst for high-yield water splitting

Huu Tuan Le; Duy Thanh Tran; Thanh Hai Nguyen; Van An Dinh; Nam Hoon Kim; Joong Hee Lee

doi:10.1016/j.apcatb.2022.121684

Single platinum atoms implanted 2D lateral anion-intercalated metal hydroxides of Ni₂(OH)₂(NO₃)₂ as efficient catalyst for high-yield water splitting

Huu Tuan Le
, Duy Thanh Tran
, Thanh Hai Nguyen
, Van An Dinh
, Nam Hoon Kim^*
, Joong Hee Lee^*

^*Corresponding author for this work

Department of Nano Convergence Engineering

Jeonbuk National University
The University of Osaka

Research output: Contribution to journal › Journal article › peer-review

38 Scopus citations

Abstract

In this study, we report new electrocatalysts based on 2D anion-intercalated metal hydroxides of Ni₂(OH)₂(NO₃)₂ (2D NiHN) and its derivation caused by the implantation of single platinum atoms (Pt_SA–2D NiHN). The optimum Pt_SA−1.73–2D NiHN material having low Pt loading of 1.73 wt% exhibits prospective HER activities with an overpotential (η) of 24 mV at 10 mA cm⁻², while the 2D NiNH requires an η of only 280 mV to reach 50 mA cm⁻² for OER. The assembly of Pt_SA−1.73–2D NiHN-based cathode and 2D NiHN-based anode to fabricate a two-electrode electrolyzer of Pt_SA−1.73–2D NiHN₍₋₎//2D NiHN₍₊₎ allows a cell voltage of only 1.45 V at 10 mA cm⁻² for overall water splitting, superior to RuO₂₍₊₎//Pt/C₍₋₎. The device also exhibits prospective long-term stability in 1 M KOH. The achievements suggest that the Pt_SA−1.73–NiHN and 2D NiHN catalysts are two potential candidates for water splitting application.

Original language	English
Article number	121684
Journal	Applied Catalysis B: Environmental
Volume	317
DOIs	https://doi.org/10.1016/j.apcatb.2022.121684
State	Published - 2022.11.15

Keywords

Anion-intercalated metal hydroxides
Efficient electrocatalyst
Single Pt atoms
Water electrolysis

Quacquarelli Symonds(QS) Subject Topics

Environmental Sciences
Engineering - Petroleum
Engineering - Chemical

Access to Document

10.1016/j.apcatb.2022.121684

Cite this

@article{43e17e3214664aaaa6d0088b7dc380fb,

title = "Single platinum atoms implanted 2D lateral anion-intercalated metal hydroxides of Ni2(OH)2(NO3)2 as efficient catalyst for high-yield water splitting",

abstract = "In this study, we report new electrocatalysts based on 2D anion-intercalated metal hydroxides of Ni2(OH)2(NO3)2 (2D NiHN) and its derivation caused by the implantation of single platinum atoms (PtSA–2D NiHN). The optimum PtSA−1.73–2D NiHN material having low Pt loading of 1.73 wt\% exhibits prospective HER activities with an overpotential (η) of 24 mV at 10 mA cm−2, while the 2D NiNH requires an η of only 280 mV to reach 50 mA cm−2 for OER. The assembly of PtSA−1.73–2D NiHN-based cathode and 2D NiHN-based anode to fabricate a two-electrode electrolyzer of PtSA−1.73–2D NiHN(−)//2D NiHN(+) allows a cell voltage of only 1.45 V at 10 mA cm−2 for overall water splitting, superior to RuO2(+)//Pt/C(−). The device also exhibits prospective long-term stability in 1 M KOH. The achievements suggest that the PtSA−1.73–NiHN and 2D NiHN catalysts are two potential candidates for water splitting application.",

keywords = "Anion-intercalated metal hydroxides, Efficient electrocatalyst, Single Pt atoms, Water electrolysis",

author = "Le, \{Huu Tuan\} and Tran, \{Duy Thanh\} and Nguyen, \{Thanh Hai\} and Dinh, \{Van An\} and Kim, \{Nam Hoon\} and Lee, \{Joong Hee\}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = nov,

day = "15",

doi = "10.1016/j.apcatb.2022.121684",

language = "English",

volume = "317",

journal = "Applied Catalysis B: Environmental",

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TY - JOUR

T1 - Single platinum atoms implanted 2D lateral anion-intercalated metal hydroxides of Ni2(OH)2(NO3)2 as efficient catalyst for high-yield water splitting

AU - Le, Huu Tuan

AU - Tran, Duy Thanh

AU - Nguyen, Thanh Hai

AU - Dinh, Van An

AU - Kim, Nam Hoon

AU - Lee, Joong Hee

PY - 2022/11/15

Y1 - 2022/11/15

N2 - In this study, we report new electrocatalysts based on 2D anion-intercalated metal hydroxides of Ni2(OH)2(NO3)2 (2D NiHN) and its derivation caused by the implantation of single platinum atoms (PtSA–2D NiHN). The optimum PtSA−1.73–2D NiHN material having low Pt loading of 1.73 wt% exhibits prospective HER activities with an overpotential (η) of 24 mV at 10 mA cm−2, while the 2D NiNH requires an η of only 280 mV to reach 50 mA cm−2 for OER. The assembly of PtSA−1.73–2D NiHN-based cathode and 2D NiHN-based anode to fabricate a two-electrode electrolyzer of PtSA−1.73–2D NiHN(−)//2D NiHN(+) allows a cell voltage of only 1.45 V at 10 mA cm−2 for overall water splitting, superior to RuO2(+)//Pt/C(−). The device also exhibits prospective long-term stability in 1 M KOH. The achievements suggest that the PtSA−1.73–NiHN and 2D NiHN catalysts are two potential candidates for water splitting application.

AB - In this study, we report new electrocatalysts based on 2D anion-intercalated metal hydroxides of Ni2(OH)2(NO3)2 (2D NiHN) and its derivation caused by the implantation of single platinum atoms (PtSA–2D NiHN). The optimum PtSA−1.73–2D NiHN material having low Pt loading of 1.73 wt% exhibits prospective HER activities with an overpotential (η) of 24 mV at 10 mA cm−2, while the 2D NiNH requires an η of only 280 mV to reach 50 mA cm−2 for OER. The assembly of PtSA−1.73–2D NiHN-based cathode and 2D NiHN-based anode to fabricate a two-electrode electrolyzer of PtSA−1.73–2D NiHN(−)//2D NiHN(+) allows a cell voltage of only 1.45 V at 10 mA cm−2 for overall water splitting, superior to RuO2(+)//Pt/C(−). The device also exhibits prospective long-term stability in 1 M KOH. The achievements suggest that the PtSA−1.73–NiHN and 2D NiHN catalysts are two potential candidates for water splitting application.

KW - Anion-intercalated metal hydroxides

KW - Efficient electrocatalyst

KW - Single Pt atoms

KW - Water electrolysis

UR - https://www.scopus.com/pages/publications/85133830034

U2 - 10.1016/j.apcatb.2022.121684

DO - 10.1016/j.apcatb.2022.121684

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JO - Applied Catalysis B: Environmental

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