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Open AccessReview

Recent Advances of First d-Block Metal-Based Perovskite Oxide Electrocatalysts for Alkaline Water Splitting

1
Department of Chemistry, Seoul National University, Seoul 08826, Korea
2
Department of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
*
Author to whom correspondence should be addressed.
Catalysts 2020, 10(7), 770; https://doi.org/10.3390/catal10070770
Received: 30 June 2020 / Revised: 7 July 2020 / Accepted: 8 July 2020 / Published: 9 July 2020
(This article belongs to the Section Electrocatalysis)
First d-block metal-based perovskite oxides (FDMPOs) have garnered significant attention in research for their utilization in the water oxidation reaction due to their low cost, earth abundance, and promising activities. Recently, FDMPOs are being applied in electrocatalysis for the hydrogen evolution reaction (HER) and overall water splitting reaction. Numerous promising FDMPO-based water splitting electrocatalysts have been reported, along with new catalytic mechanisms. Therefore, an in-time summary of the current progress of FDMPO-based water splitting electrocatalysts is now considered imperative. However, few reviews have focused on this particular subject thus far. In this contribution, we review the most recent advances (mainly within the years 2014–2020) of FDMPO electrocatalysts for alkaline water splitting, which is widely considered to be the most promising next-generation technology for future large-scale hydrogen production. This review begins with an introduction describing the fundamentals of alkaline water electrolysis and perovskite oxides. We then carefully elaborate on the various design strategies used for the preparation of FDMPO electrocatalysts applied in the alkaline water splitting reaction, including defecting engineering, strain tuning, nanostructuring, and hybridization. Finally, we discuss the current advances of various FDMPO-based water splitting electrocatalysts, including those based on Co, Ni, Fe, Mn, and other first d-block metal-based catalysts. By conveying various methods, developments, perspectives, and challenges, this review will contribute toward the understanding and development of FDMPO electrocatalysts for alkaline water splitting. View Full-Text
Keywords: perovskite oxides; first d-block; electrocatalyst; alkaline water splitting perovskite oxides; first d-block; electrocatalyst; alkaline water splitting
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MDPI and ACS Style

Wang, J.; Choi, S.; Kim, J.; Cha, S.W.; Lim, J. Recent Advances of First d-Block Metal-Based Perovskite Oxide Electrocatalysts for Alkaline Water Splitting. Catalysts 2020, 10, 770. https://doi.org/10.3390/catal10070770

AMA Style

Wang J, Choi S, Kim J, Cha SW, Lim J. Recent Advances of First d-Block Metal-Based Perovskite Oxide Electrocatalysts for Alkaline Water Splitting. Catalysts. 2020; 10(7):770. https://doi.org/10.3390/catal10070770

Chicago/Turabian Style

Wang, Jian; Choi, Subin; Kim, Juwon; Cha, Suk W.; Lim, Jongwoo. 2020. "Recent Advances of First d-Block Metal-Based Perovskite Oxide Electrocatalysts for Alkaline Water Splitting" Catalysts 10, no. 7: 770. https://doi.org/10.3390/catal10070770

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