Enhanced activity promoted by amorphous metal oxyhydroxides on CeO2 for alkaline oxygen evolution reaction

Sun, Xun; Guan, Xin; Feng, Hao; Zheng, Dengchao; Tian, Wenli; Li, Chengyi; Li, Chuiyu; Yan, Minglei; Yao, Yadong

doi:10.1016/j.jcis.2021.06.149

Cited by 11 publications

(3 citation statements)

References 42 publications

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“…It exhibits a superior electrocatalytic activity and good cyclic stability in alkaline conditions. Additionally, AMO@CeO 2 /NF showed the best OER performance with a favorable potential of 261 mV at 10 mA cm −2 [ 56 ]. The layered structure of bimetallic-natured FeCoO x H was synthesized via a polyol method.…”

Section: Transition Metal Oxh Based Electrodes For Oermentioning

confidence: 99%

Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview

Chen,

Anushya

et al. 2023

Nanomaterials

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Water electrolysis is an important alternative technology for large-scale hydrogen production to facilitate the development of green energy technology. As such, many efforts have been devoted over the past three decades to producing novel electrocatalysis with strong electrochemical (EC) performance using inexpensive electrocatalysts. Transition metal oxyhydroxide (OxH)-based electrocatalysts have received substantial interest, and prominent results have been achieved for the hydrogen evolution reaction (HER) under alkaline conditions. Herein, the extensive research focusing on the discussion of OxH-based electrocatalysts is comprehensively highlighted. The general forms of the water-splitting mechanism are described to provide a profound understanding of the mechanism, and their scaling relation activities for OxH electrode materials are given. This paper summarizes the current developments on the EC performance of transition metal OxHs, rare metal OxHs, polymers, and MXene-supported OxH-based electrocatalysts. Additionally, an outline of the suggested HER, OER, and water-splitting processes on transition metal OxH-based electrocatalysts, their primary applications, existing problems, and their EC performance prospects are discussed. Furthermore, this review article discusses the production of energy sources from the proton and electron transfer processes. The highlighted electrocatalysts have received substantial interest to boost the synergetic electrochemical effects to improve the economy of the use of hydrogen, which is one of best ways to fulfill the global energy requirements and address environmental crises. This article also provides useful information regarding the development of OxH electrodes with a hierarchical nanostructure for the water-splitting reaction. Finally, the challenges with the reaction and perspectives for the future development of OxH are elaborated.

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Section: Transition Metal Oxh Based Electrodes For Oermentioning

confidence: 99%

Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview

Chen,

Anushya

et al. 2023

Nanomaterials

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“…CeO 2 , which is an oxide of one of the most abundant rare earth lanthanide series metals, undergoes a flexible oxidation transition process involving Ce 3+ and Ce 4+ , and has excellent ionic conductivity and abundant oxygen defects. [37][38][39][40] These characteristic make CeO 2 an effective co-catalyst for oxygen delivery, which can not only promote charge transport, but also improve the energy-conversion efficiency. [41][42][43][44] To date, many studies have investigated and reported on a large number of CeO 2 -based mixed metal oxides systems, including (Co 3 O 4 or NiO)/CeO, 45 CeO 2 -CoO, 46 and N-NiO-CeO 2 .…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of CeO₂-decorated W@Co-MOF heterostructures as a highly active and durable electrocatalyst for overall water splitting

Su,

Wang,

Wang

et al. 2024

Phys. Chem. Chem. Phys.

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“…Layered double hydroxide (LDH) has been considered a model material for OER electrocatalysts because of its flexible chemical composition, intrinsic layered structure, and redox characteristics. − The high tunability of its composition and high crystallinity are favorable for achieving multimetal synergistic effects and high structural stability during electrocatalytic reactions, respectively. − However, most reported LDH-based OER catalysts with high efficiency have been operated in alkaline electrolytes. Similar to the LDHs for alkaline water electrolysis, multimetal amorphous OER catalysts, such as metal oxyhydroxides − and metal oxides, − have also been actively studied in recent years because their compositional flexibility can improve the performance. Nocera et al and Dincă et al developed amorphous Ni–Bi catalysts for use in a pH-near-neutral borate electrolyte (K–Bi, pH 9.0). , Nevertheless, it was difficult to ensure structural stability of amorphous catalysts because of corrosion caused by H + accumulation during OER in pH-neutral electrolyte (pH 7.0).…”

mentioning

confidence: 99%

High-Performance Electrochemical and Photoelectrochemical Water Splitting at Neutral pH by Ir Nanocluster-Anchored CoFe-Layered Double Hydroxide Nanosheets

Song

Kim

et al. 2023

Nano Lett.

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Highly efficient electrocatalysts for the oxygen evolution reaction (OER) in neutral electrolytes are indispensable for practical electrochemical and photoelectrochemical water splitting technologies. However, there is a lack of good, neutral OER electrocatalysts because of the poor stability when H+ accumulates during the OER and slow OER kinetics at neutral pH. Herein, we report Ir species nanocluster-anchored, Co/Fe-layered double hydroxide (LDH) nanostructures in which the crystalline nature of LDH-restrained corrosion associated with H+ and the Ir species dramatically enhanced the OEC kinetics at neutral pH. The optimized OER electrocatalyst demonstrated a low overpotential of 323 mV (at 10 mA cm–2) and a record low Tafel slope of 42.8 mV dec–1. When it was integrated with an organic semiconductor-based photoanode, we obtained a photocurrent density of 15.2 mA cm–2 at 1.23 V versus reversible hydrogen in neutral electrolyte, which is the highest among all reported photoanodes to our knowledge.

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Enhanced activity promoted by amorphous metal oxyhydroxides on CeO2 for alkaline oxygen evolution reaction

Cited by 11 publications

References 42 publications

Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview

Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview

Facile synthesis of CeO₂-decorated W@Co-MOF heterostructures as a highly active and durable electrocatalyst for overall water splitting

High-Performance Electrochemical and Photoelectrochemical Water Splitting at Neutral pH by Ir Nanocluster-Anchored CoFe-Layered Double Hydroxide Nanosheets

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Enhanced activity promoted by amorphous metal oxyhydroxides on CeO2 for alkaline oxygen evolution reaction

Cited by 11 publications

References 42 publications

Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview

Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview

Facile synthesis of CeO2-decorated W@Co-MOF heterostructures as a highly active and durable electrocatalyst for overall water splitting

High-Performance Electrochemical and Photoelectrochemical Water Splitting at Neutral pH by Ir Nanocluster-Anchored CoFe-Layered Double Hydroxide Nanosheets

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Product

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Facile synthesis of CeO₂-decorated W@Co-MOF heterostructures as a highly active and durable electrocatalyst for overall water splitting