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Cited by 25Electrocatalysts for Energy ConversionLaser-Ablation Synthesis of NanoparticlesCO2 Reduction Techniques and Catalysts

Laser Synthesis of Iridium Nanospheres for Overall Water Splitting

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Wang, Hai-Bin, Wang, Jia-Qi, Mintcheva, Neli, Wang, Min, Li, Shuang, Mao, Jing, Liu, Hui, Dong, Cun-Ku +2 more·2019·Materials
DOI 10.3390/ma12183028PMC PMC6766323
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Abstract

Engineering surface structure of catalysts is an efficient way towards high catalytic performance. Here, we report on the synthesis of regular iridium nanospheres (Ir NSs), with abundant atomic steps prepared by a laser ablation technique. Atomic steps, consisting of one-atom level covering the surface of such Ir NSs, were observed by aberration-corrected high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). The prepared Ir NSs exhibited remarkably enhanced activity both for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in acidic medium. As a bifunctional catalyst for overall water splitting, they achieved a cell voltage of 1.535 V @ 10 mA/cm2, which is much lower than that of Pt/C-Ir/C couple (1.630 V @ 10 mA/cm2).

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Cited by

Sorted by citations

Authors
Wang, H.-B., Wang, J.-Q., Mintcheva, N., Wang, M., Li, S., Mao, J., Liu, H., Dong, C.-K., Kulinich, S. A., & Du, X.-W.
Affiliations
  • Institute of New-Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
  • Tokai University (JP)
  • Tianjin University (CN)
Corresponding author
  • Kulinich, Sergei A.
  • Du, Xi-Wen
ORCID
Venue
Materials
Publisher
MDPI AG
Published
2019-09-18
Volume
12
Issue
18
Pages
3028
ISSN
1996-1944 (ISSN-L)
DOI
10.3390/ma12183028
PMC
PMC6766323
OpenAlex
W2974765754
Cited by
25
References
5
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 5 · 2021: 5 · 2020: 4 · 2019: 2 · 2018: 1
FWCI
0.85
Type
journal article
Language
en
Open access
Licence
Locations
  • Materials (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (51471115, 51871160)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Engineering › Biomedical Engineering › Laser-Ablation Synthesis of Nanoparticles
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
laser ablation synthesis, surface steps, surface structure engineering, bifunctional electrocatalysts, oxygen evolution reaction, hydrogen evolution reaction, overall water splitting, acidic media, cell voltage

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