High‐Efficiency Oxygen Evolution Reaction: Controllable Reconstruction of Surface Interface DOI Open Access

Lianhui Wu,

Zhixi Guan,

Daying Guo

et al.

Small, Journal Year: 2023, Volume and Issue: 19(49)

Published: Aug. 7, 2023

Abstract The precatalyst undergoes surface reconstruction during the oxygen evolution reaction (OER) process, and reconstituted material is one that really plays a catalytic role. However, degree of seriously affects performance. For this reason, it important to establish link between activity based on deep understanding OER mechanism for rational design high‐performance electrocatalysts. Here, briefly introduced, competition adsorbate (AEM) lattice oxygen‐mediated (LOM) discussed, several descriptors are summarized. strategies realize controllable emphatically including ion leaching, element doping, regulating catalyst size, heterogeneous structure engineering, self‐reconstruction. A mechanistic perspective emphasized understand relationship dynamic electronic structure. Controlled reconfiguration can break limitation proportional brought by traditional AEM mechanism, also switching LOM thus realizing ultra‐low overpotential. This review will provide some reference transition metal‐based catalysts reasonable development ideal

Language: Английский

Ir Single Atoms Boost Metal–Oxygen Covalency on Selenide-Derived NiOOH for Direct Intramolecular Oxygen Coupling DOI
Zhao-Hua Yin,

Yuan Huang,

Kepeng Song

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(10), P. 6846 - 6855

Published: Feb. 29, 2024

This investigation probes the intricate interplay of catalyst dynamics and reaction pathways during oxygen evolution (OER), highlighting significance atomic-level local ligand structure insights in crafting highly active electrocatalysts. Leveraging a tailored ion exchange followed by electrochemical dynamic reconstruction, we engineered novel catalytic featuring single Ir atoms anchored to NiOOH (Ir1@NiOOH). approach involved strategic replacement Fe with Ir, facilitating transition selenide precatalysts into (oxy)hydroxides. elemental substitution promoted an upward shift O 2p band intensified metal–oxygen covalency, thereby altering OER mechanism toward enhanced activity. The from single-metal site (SMSM) dual-metal-site (DMSM) Ir1@NiOOH was substantiated situ differential mass spectrometry (DEMS) supported theoretical insights. Remarkably, electrode exhibited exceptional electrocatalytic performance, achieving overpotentials as low 142 308 mV at current densities 10 1000 mA cm–2, respectively, setting new benchmark for electrocatalysis OER.

Language: Английский

Citations

102
Designing Oxide Catalysts for Oxygen Electrocatalysis: Insights from Mechanism to Application DOI Creative Commons
Ning Han, Wei Zhang, Wei Guo

et al.

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: July 29, 2023

Abstract The electrochemical oxygen reduction reaction (ORR) and evolution (OER) are fundamental processes in a range of energy conversion devices such as fuel cells metal–air batteries. ORR OER both have significant activation barriers, which severely limit the overall performance that utilize ORR/OER. Meanwhile, is another very important involving has been widely investigated. occurs aqueous solutions via two pathways: direct 4-electron or 2-electron pathways from O 2 to water (H O) hydrogen peroxide ). Noble metal electrocatalysts often used catalyze ORR, despite fact noble certain intrinsic limitations, low storage. Thus, it urgent develop more active stable low-cost electrocatalysts, especially for severe environments (e.g., acidic media). Theoretically, an ideal electrocatalyst should provide adequate binding species. Transition metals not belonging platinum group metal-based oxides substance could give d orbital species binding. As result, transition regarded substitute typical precious electrocatalysts. However, development oxide catalysts reactions still faces challenges, e.g., catalytic activity, stability, cost, mechanism. We discuss principles underlying design catalysts, including influence crystal structure, electronic structure on their performance. also challenges associated with developing potential strategies overcome these challenges.

Language: Английский

Citations

77
High-spin Co3+ in cobalt oxyhydroxide for efficient water oxidation DOI Creative Commons
Xin Zhang, Haoyin Zhong, Qi Zhang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 15, 2024

Abstract Cobalt oxyhydroxide (CoOOH) is a promising catalytic material for oxygen evolution reaction (OER). In the traditional CoOOH structure, Co 3+ exhibits low-spin state configuration ( $${t}_{2{{{{{\rm{g}}}}}}}^{6}{e}_{{{{{{\rm{g}}}}}}}^{0}$$ t 2 g 6 e 0 ), with electron transfer occurring in face-to-face $${t}_{2{{{{{\rm{g}}}}}}}^{*}$$ * orbitals. this work, we report successful synthesis of high-spin by introducing coordinatively unsaturated atoms. As compared to CoOOH, occurs apex-to-apex $${e}_{{{{{{\rm{g}}}}}}}^{*}$$ orbitals, which faster ability. result, performs superior OER activity an overpotential 226 mV at 10 mA cm −2 , 148 lower than that CoOOH. This work emphasizes effect spin on based electrocatalysts water splitting, and thus provides new strategy designing highly efficient electrocatalysts.

Language: Английский

Citations

72
Recent advances in Ru/Ir-based electrocatalysts for acidic oxygen evolution reaction DOI Creative Commons

Guoliang Gao,

Zixu Sun, Xueli Chen

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 343, P. 123584 - 123584

Published: Dec. 1, 2023

The electrocatalytic process of water splitting offers a promising approach to produce sustainable hydrogen. However, the slow kinetics oxygen evolution reaction (OER) presents notable challenge, especially in acidic environment proton exchange membrane (PEM) systems. Despite extensive progress made catalyst development for hydrogen production through electrolysis last century, significant advancements have been accomplished. quest OER catalysts that possess both high activity and stability, while also being affordable, continues be challenging. Currently, Ru/Ir-based electrocatalysts are only practical anode available. Therefore, it is crucial explore feasible strategies enhance performance longevity catalysts. This review comprehensive assessment obstacles prospective Additionally, underscores areas research concentration, providing valuable perspectives future endeavors development.

Language: Английский

Citations

70
Sub‐2 nm IrRuNiMoCo High‐Entropy Alloy with Iridium‐Rich Medium‐Entropy Oxide Shell to Boost Acidic Oxygen Evolution DOI
Longping Yao,

Fengru Zhang,

Shuai Yang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(25)

Published: March 22, 2024

Ensuring high catalytic activity and durability at low iridium (Ir)usage is still a big challenge for the development of electrocatalysts toward oxygen evolution reaction (OER) in proton exchange membrane water electrolysis (PEMWE). Here, rapid liquid-reduction combined with surface galvanic replacement strategy reported to synthesize sub 2 nm high-entropy alloy (HEA) nanoparticles featured Ir-rich IrRuNiMo medium-entropy oxide shell (Ir-MEO) IrRuCoNiMo HEA core (HEA@Ir-MEO). Advanced spectroscopies reveal that MEO inhibits severe structural transition metals upon OER, thus guaranteeing stability. In situ differential electrochemical mass spectrometry, activation energy analysis theoretical calculations unveil OER on HEA@Ir-MEO follows an adsorbate mechanism pathway, where barrier rate-determining step substantially lowered. The optimized catalyst delivers excellent performance (1.85 V/3.0 A cm

Language: Английский

Citations

64
The mechanism of water oxidation using transition metal-based heterogeneous electrocatalysts DOI
Shujiao Yang, Xiaohan Liu, Sisi Li

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(11), P. 5593 - 5625

Published: Jan. 1, 2024

The oxygen evolution reaction (OER) mechanisms using transition metal-based electrocatalysts are instrumental in providing novel insights into both natural and artificial energy conversion processes.

Language: Английский

Citations

63
Lattice Oxygen Redox Mechanisms in the Alkaline Oxygen Evolution Reaction DOI
Xiangrong Ren, Yiyue Zhai, Na Yang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(32)

Published: March 25, 2024

Abstract Understanding of fundamental mechanism and kinetics the oxygen evolution reaction (OER) is pivotal for designing efficient OER electrocatalysts owing to its key role in electrochemical energy conversion devices. In past few years, lattice oxidation (LOM) arising from anodic redox chemistry has attracted significant attention as it involves a direct O─O coupling thus bypasses thermodynamic limitations traditional adsorbate (AEM). Transition metal‐based oxyhydroxides are generally acknowledged real catalytic phase alkaline media. particular, their low‐dimensional layered structures offer sufficient structural flexibility trigger LOM. Herein, comprehensive overview provided recent advances anion LOM‐based electrocatalysts. Based on analyses electronic structure LOM, strategy proposed activate Possible identification techniques corroboration also reviewed. addition, reconstruction process induced by LOM focused importance multiple situ/operando characterizations highlighted unveil chemical origins To conclude, prospect remaining challenges future opportunities presented.

Language: Английский

Citations

58
Dual role of sulfur doping in NiCr LDH for water oxidation: Promoting surface reconfiguration and lattice oxygen oxidation DOI

Qiaohong Su,

Pengyue Wang,

Qingcui Liu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 351, P. 123994 - 123994

Published: April 24, 2024

Language: Английский

Citations

56
Strain‐modulated Ru‐O Covalency in Ru‐Sn Oxide Enabling Efficient and Stable Water Oxidation in Acidic Solution DOI Creative Commons
Yiming Xu,

Zhixian Mao,

Jifang Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(8)

Published: Jan. 3, 2024

Abstract RuO 2 is one of the benchmark electrocatalysts used as anode material in proton exchange membrane water electrolyser. However, its long‐term stability compromised due to participation lattice oxygen and metal dissolution during evolution reaction (OER). In this work, weakened covalency Ru−O bond was tailored by introducing tensile strain 6 octahedrons a binary Ru−Sn oxide matrix, prohibiting Ru, thereby significantly improving stability. Moreover, also optimized adsorption energy intermediates boosted OER activity. Remarkably, RuSnO x electrocatalyst exhibited excellent activity 0.1 M HClO 4 required merely 184 mV overpotential at current density 10 mA cm −2 . it delivered for least 150 h with negligible potential increase. This work exemplifies an effective strategy engineering Ru‐based catalysts extraordinary performance toward splitting.

Language: Английский

Citations

55
Recent progress of manganese dioxide based electrocatalysts for the oxygen evolution reaction DOI Creative Commons

Yunlong He,

Zhenye Kang,

Jing Li

et al.

Industrial Chemistry and Materials, Journal Year: 2023, Volume and Issue: 1(3), P. 312 - 331

Published: Jan. 1, 2023

This review discusses the OER reaction mechanism (AEM and LOM) research progress of MnO 2 -based catalysts. The optimization strategy catalysts was summarized.

Language: Английский

Citations

54