Polyoxometalated metal-organic framework superstructure for stable water oxidation

Stable, nonprecious catalysts are vital for large-scale alkaline water electrolysis. Here, we report a grafted superstructure, MOF@POM, formed by self-assembling a metal-organic framework (MOF) with polyoxometalate (POM). In situ electrochemical transformation converts MOF into active metal (oxy)hydroxides to produce a catalyst with a low overpotential of 178 millivolts at 10 milliamperes per square centimeter in alkaline electrolyte. An anion exchange membrane water electrolyzer incorporating this catalyst achieves 3 amperes per square centimeter at 1.78 volts at 80°C and stable operation at 2 amperes per square centimeter for 5140 hours at room temperature. In situ electrochemical spectroscopy and theoretical studies reveal that the synergistic interactions between metal atoms create a fast electron-transfer channel from catalytic iron and cobalt sites, nickel, and tungsten in the polyoxometalate to the electrode, stabilizing the metal sites and preventing dissolution.

Authors

Institutions

Publication Details

Journal
Science
Published
2025-04-24
DOI
https://doi.org/10.1126/science.ads1466
Citations
166
Primary Topic
Electrocatalysts for Energy Conversion
Type
article
Field-Weighted Citation Impact
60.34
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Polyoxometalated metal-organic framework superstructure for stable water oxidation

Fei Song, Daliang Zhang, Mingbin Gao, Ruijuan Qi et al.
166 citations
Science
Electrocatalysts for Energy Conversion
60.34
article

Polyoxometalated metal-organic framework superstructure for stable water oxidation

Fei Song, Daliang Zhang, Mingbin Gao, Ruijuan Qi, Bao Yu Xia, Fuqiang Huang, Bingbao Mei, Kaihang Yue, Ruihu Lu, Ya Yan, Ziyun Wang, Jiangwei Zhang, Hongliang Dong, Yao Dai, Chenfeng Xia
article en
166 citations

Abstract

Stable, nonprecious catalysts are vital for large-scale alkaline water electrolysis. Here, we report a grafted superstructure, MOF@POM, formed by self-assembling a metal-organic framework (MOF) with polyoxometalate (POM). In situ electrochemical transformation converts MOF into active metal (oxy)hydroxides to produce a catalyst with a low overpotential of 178 millivolts at 10 milliamperes per square centimeter in alkaline electrolyte. An anion exchange membrane water electrolyzer incorporating this catalyst achieves 3 amperes per square centimeter at 1.78 volts at 80°C and stable operation at 2 amperes per square centimeter for 5140 hours at room temperature. In situ electrochemical spectroscopy and theoretical studies reveal that the synergistic interactions between metal atoms create a fast electron-transfer channel from catalytic iron and cobalt sites, nickel, and tungsten in the polyoxometalate to the electrode, stabilizing the metal sites and preventing dissolution.

ScienceVol. 388(6745)
University of Auckland (NZ), Chongqing University (CN), Dalian Institute of Chemical Physics (CN), Shanghai Jiao Tong University (CN), Chinese Academy of Sciences (CN), Inner Mongolia University (CN), Shanghai Advanced Research Institute (CN), Wuhan National Laboratory for Optoelectronics (CN), Center for High Pressure Science and Technology Advanced Research (CN), Shanghai Institute of Ceramics (CN), University of Chinese Academy of Sciences (CN), East China Normal University (CN), Sungkyunkwan University (KR)
Clean water and sanitation
Openalex Percentile: Top 0%
Electrocatalysts for Energy Conversion
60.34
DOISourceOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.