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Cited by 378Electrocatalysts for Energy ConversionCO2 Reduction Techniques and CatalystsFuel Cells and Related Materials

Channel‐Rich RuCu Nanosheets for pH‐Universal Overall Water Splitting Electrocatalysis

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Yao, Qing, Huang, Bolong, Zhang, Nan, Sun, Mingzi, Shao, Qi, Huang, Xiaoqing·2019·Angewandte Chemie International Edition
DOI 10.1002/anie.201908092
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Abstract

Channel‐rich RuCu snowflake‐like nanosheets (NSs) composed of crystallized Ru and amorphous Cu were used as efficient electrocatalysts for oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and overall water splitting in pH‐universal electrolytes. The optimized RuCu NSs/C‐350 °C and RuCu NSs/C‐250 °C show attractive activities of OER and HER with low overpotentials and small Tafel slopes, respectively. When applied to overall water splitting, the optimized RuCu NSs/C can reach 10 mA cm−2 at cell voltages of only 1.49, 1.55, 1.49 and 1.50 V in 1 m KOH, 0.1 m KOH, 0.5 m H 2 SO 4 and 0.05 m H 2 SO 4, respectively, much lower than those of commercial Ir/C∥Pt/C. The optimized electrolyzer exhibits superior durability with small potential change after up to 45 h in 1 m KOH, showing a class of efficient functional electrocatalysts for overall water splitting.

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  • After the OER test, Ru0.7Co0.3 aerogel exhibits new Ru 3p peaks at 468.9 eV and 489.4 eV, attributable to Ru 3p3/2 and Ru 3p1/2 of Run+ (n > 4).

    “the Ru0.7Co0.3 aerogel after the OER test exhibits new peaks located at 468.9 eV and 489.4 eV, which can be attributed to Ru 3p3/2 and Ru 3p1/2 of Run+ (n > 4)”

    From Rational design of Ru aerogel and RuCo aerogels with abundant oxygen vacancies for hydrogen evolution reaction, oxygen evolution reaction, and overall water splitting (2021) · cites this paper as [46]

    The indexed text (section labelled Abstract; page unavailable) studies RuCu nanosheets, not a Ru0.7Co0.3 aerogel. It assigns Ru 3p3/2 peaks at 461.8, 463.7 and 465.5 eV and says XPS showed the RuCu surface was hardly changed after OER stability tests, contrary to the claimed new post-test peaks at 468.9 and 489.4 eV. (LLM, conf=0.85)

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Authors
Yao, Q., Huang, B., Zhang, N., Sun, M., Shao, Q., & Huang, X.
Affiliations
  • Soochow University (CN)
  • Hong Kong Polytechnic University (HK)
Corresponding author
Huang, Xiaoqing
ORCID
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2019-08-14
Volume
58
Issue
39
Pages
13983-13988
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
DOI
10.1002/anie.201908092
OpenAlex
W2963912632
Cited by
378
References
46
Citations by year
2026: 16 · 2025: 42 · 2024: 55 · 2023: 67 · 2022: 80 · 2021: 74 · 2020: 37 · 2019: 7
FWCI
1.92
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • Angewandte Chemie International Edition (publishedVersion)
  • PubMed (publishedVersion)
  • PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
Funders
  • National Natural Science Foundation of China (21571135, BK20170003, 2017YFA0208200, 2016YFA0204100)
  • Government of Jiangsu Province (BK20170003)
  • Soochow University (BK20170003, 2016YFA0204100, 21571135, 2017YFA0208200)
  • Priority Academic Program Development of Jiangsu Higher Education Institutions (2017YFA0208200, 2016YFA0204100, BK20170003, 21571135)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
Keywords
oxygen evolution reaction, hydrogen evolution reaction, overall water splitting, amorphous copper, electrocatalysts, electrolyzer durability, sulfuric acid electrolysis

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