Leveraging Metal Nodes in Metal-Organic Frameworks for Advanced Anodic Hydrazine Oxidation Assisted Seawater Splitting

Xuefei Xu; Hsiao Chien Chen; Linfeng Li; Muhammad Humayun; Xia Zhang; Huachuan Sun; Damien P. Debecker; Wenjun Zhang; Liming Dai; Chundong Wang

doi:10.1021/acsnano.3c02749

Leveraging Metal Nodes in Metal-Organic Frameworks for Advanced Anodic Hydrazine Oxidation Assisted Seawater Splitting

Xuefei Xu
, Hsiao Chien Chen
, Linfeng Li
, Muhammad Humayun
, Xia Zhang
, Huachuan Sun
, Damien P. Debecker
, Wenjun Zhang
, Liming Dai^*
, Chundong Wang^*

^*Corresponding author for this work

Centre for Reliability Science and Technology

Huazhong University of Science and Technology
Université catholique de Louvain
City University of Hong Kong
University of New South Wales

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

106 Scopus citations

Abstract

Metal-organic frameworks (MOFs) show great promise for electrocatalysis owing to their tunable ligand structures. However, the poor stability of MOFs impedes their practical applications. Unlike the general pathway for engineering ligands, we report herein an innovative strategy for leveraging metal nodes to improve both the catalytic activity and the stability. Our electrolysis cell with a NiRh-MOF||NiRh-MOF configuration exhibited 10 mA cm^-2 at an ultralow cell voltage of 0.06 V in alkaline seawater (with 0.3 M N₂H₄), outperforming its counterpart benchmark Pt/C||Pt/C cell (0.12 V). Impressively, the incorporation of Rh into a MOF secured a robust stability of over 60 h even when working in the seawater electrolyte. Experimental results and theoretical calculations revealed that Rh atoms serve as the active sites for hydrogen evolution while Ni nodes are responsible for the hydrazine oxidation during the hydrazine oxidation assisted seawater splitting. This work provides a paradigm for green hydrogen generation from seawater.

Original language	English
Pages (from-to)	10906-10917
Number of pages	12
Journal	ACS Nano
Volume	17
Issue number	11
DOIs	https://doi.org/10.1021/acsnano.3c02749
State	Published - 13 06 2023

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Publisher Copyright:
© 2023 American Chemical Society.

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

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Keywords

electronic structure
hydrazine oxidation reaction
hydrogen evolution reaction
metal nodes
metal−organic frameworks

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10.1021/acsnano.3c02749

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title = "Leveraging Metal Nodes in Metal-Organic Frameworks for Advanced Anodic Hydrazine Oxidation Assisted Seawater Splitting",

abstract = "Metal-organic frameworks (MOFs) show great promise for electrocatalysis owing to their tunable ligand structures. However, the poor stability of MOFs impedes their practical applications. Unlike the general pathway for engineering ligands, we report herein an innovative strategy for leveraging metal nodes to improve both the catalytic activity and the stability. Our electrolysis cell with a NiRh-MOF||NiRh-MOF configuration exhibited 10 mA cm-2 at an ultralow cell voltage of 0.06 V in alkaline seawater (with 0.3 M N2H4), outperforming its counterpart benchmark Pt/C||Pt/C cell (0.12 V). Impressively, the incorporation of Rh into a MOF secured a robust stability of over 60 h even when working in the seawater electrolyte. Experimental results and theoretical calculations revealed that Rh atoms serve as the active sites for hydrogen evolution while Ni nodes are responsible for the hydrazine oxidation during the hydrazine oxidation assisted seawater splitting. This work provides a paradigm for green hydrogen generation from seawater.",

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author = "Xuefei Xu and Chen, \{Hsiao Chien\} and Linfeng Li and Muhammad Humayun and Xia Zhang and Huachuan Sun and Debecker, \{Damien P.\} and Wenjun Zhang and Liming Dai and Chundong Wang",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

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doi = "10.1021/acsnano.3c02749",

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TY - JOUR

T1 - Leveraging Metal Nodes in Metal-Organic Frameworks for Advanced Anodic Hydrazine Oxidation Assisted Seawater Splitting

AU - Xu, Xuefei

AU - Chen, Hsiao Chien

AU - Li, Linfeng

AU - Humayun, Muhammad

AU - Zhang, Xia

AU - Sun, Huachuan

AU - Debecker, Damien P.

AU - Zhang, Wenjun

AU - Dai, Liming

AU - Wang, Chundong

PY - 2023/6/13

Y1 - 2023/6/13

N2 - Metal-organic frameworks (MOFs) show great promise for electrocatalysis owing to their tunable ligand structures. However, the poor stability of MOFs impedes their practical applications. Unlike the general pathway for engineering ligands, we report herein an innovative strategy for leveraging metal nodes to improve both the catalytic activity and the stability. Our electrolysis cell with a NiRh-MOF||NiRh-MOF configuration exhibited 10 mA cm-2 at an ultralow cell voltage of 0.06 V in alkaline seawater (with 0.3 M N2H4), outperforming its counterpart benchmark Pt/C||Pt/C cell (0.12 V). Impressively, the incorporation of Rh into a MOF secured a robust stability of over 60 h even when working in the seawater electrolyte. Experimental results and theoretical calculations revealed that Rh atoms serve as the active sites for hydrogen evolution while Ni nodes are responsible for the hydrazine oxidation during the hydrazine oxidation assisted seawater splitting. This work provides a paradigm for green hydrogen generation from seawater.

AB - Metal-organic frameworks (MOFs) show great promise for electrocatalysis owing to their tunable ligand structures. However, the poor stability of MOFs impedes their practical applications. Unlike the general pathway for engineering ligands, we report herein an innovative strategy for leveraging metal nodes to improve both the catalytic activity and the stability. Our electrolysis cell with a NiRh-MOF||NiRh-MOF configuration exhibited 10 mA cm-2 at an ultralow cell voltage of 0.06 V in alkaline seawater (with 0.3 M N2H4), outperforming its counterpart benchmark Pt/C||Pt/C cell (0.12 V). Impressively, the incorporation of Rh into a MOF secured a robust stability of over 60 h even when working in the seawater electrolyte. Experimental results and theoretical calculations revealed that Rh atoms serve as the active sites for hydrogen evolution while Ni nodes are responsible for the hydrazine oxidation during the hydrazine oxidation assisted seawater splitting. This work provides a paradigm for green hydrogen generation from seawater.

KW - electronic structure

KW - hydrazine oxidation reaction

KW - hydrogen evolution reaction

KW - metal nodes

KW - metal−organic frameworks

UR - https://www.scopus.com/pages/publications/85162857942

U2 - 10.1021/acsnano.3c02749

DO - 10.1021/acsnano.3c02749

M3 - 文章

C2 - 37260372

AN - SCOPUS:85162857942

SN - 1936-0851

VL - 17

SP - 10906

EP - 10917

JO - ACS Nano

JF - ACS Nano

IS - 11

ER -

Leveraging Metal Nodes in Metal-Organic Frameworks for Advanced Anodic Hydrazine Oxidation Assisted Seawater Splitting

Abstract

Bibliographical note

UN SDGs

Keywords

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