Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives

Chemical Society Reviews, Journal Year: 2017, Volume and Issue: 46(2), P. 337 - 365

Published: Jan. 1, 2017

We review the fundamental aspects of metal oxides, chalcogenides and pnictides as effective electrocatalysts for oxygen evolution reaction.

Language: Английский

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Recent Advances in Ultrathin Two-Dimensional Nanomaterials

Chemical Reviews, Journal Year: 2017, Volume and Issue: 117(9), P. 6225 - 6331

Published: March 17, 2017

Since the discovery of mechanically exfoliated graphene in 2004, research on ultrathin two-dimensional (2D) nanomaterials has grown exponentially fields condensed matter physics, material science, chemistry, and nanotechnology. Highlighting their compelling physical, chemical, electronic, optical properties, as well various potential applications, this Review, we summarize state-of-art progress 2D with a particular emphasis recent advances. First, introduce unique advances nanomaterials, followed by description composition crystal structures. The assortments synthetic methods are then summarized, including insights advantages limitations, alongside some recommendations suitable characterization techniques. We also discuss detail utilization these for wide ranges applications among electronics/optoelectronics, electrocatalysis, batteries, supercapacitors, solar cells, photocatalysis, sensing platforms. Finally, challenges outlooks promising field featured basis its current development.

Language: Английский

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A review on g-C 3 N 4 -based photocatalysts

Applied Surface Science, Journal Year: 2016, Volume and Issue: 391, P. 72 - 123

Published: July 9, 2016

Language: Английский

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Insight on Tafel slopes from a microkinetic analysis of aqueous electrocatalysis for energy conversion

Scientific Reports, Journal Year: 2015, Volume and Issue: 5(1)

Published: Sept. 8, 2015

Abstract Microkinetic analyses of aqueous electrochemistry involving gaseous H 2 or O , i.e., hydrogen evolution reaction (HER), oxidation (HOR), oxygen reduction (ORR) and (OER), are revisited. The Tafel slopes used to evaluate the rate determining steps generally assume extreme coverage adsorbed species (θ ≈ 0 ≈1), although, in practice, coverage-dependent. We conducted detailed kinetic describing coverage-dependent for aforementioned reactions. Our careful provide a general benchmark experimentally observed that can be assigned specific steps. analysis is powerful tool discussing involved electrocatalysis, but our study also demonstrated overly simplified assumptions led an inaccurate description surface electrocatalysis. Additionally, many studies, have been performed conjunction with Butler-Volmer equation, where its applicability regarding only electron transfer kinetics often overlooked. Based on derived HER/HOR as example, limitation expression electrocatalysis discussed this report.

Language: Английский

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Ultrathin metal–organic framework nanosheets for electrocatalytic oxygen evolution

Nature Energy, Journal Year: 2016, Volume and Issue: 1(12)

Published: Nov. 28, 2016

Language: Английский

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Recent Progress in Cobalt‐Based Heterogeneous Catalysts for Electrochemical Water Splitting

Advanced Materials, Journal Year: 2015, Volume and Issue: 28(2), P. 215 - 230

Published: Nov. 9, 2015

Water electrolysis is considered as the most promising technology for hydrogen production. Much research has been devoted to developing efficient electrocatalysts production via evolution reaction (HER) and oxygen (OER). The optimum can drive down energy costs needed water splitting lowering overpotential. A number of cobalt (Co)‐based materials have developed over past years non‐noble‐metal heterogeneous HER OER. Recent progress in this field summarized here, especially highlighting several important bifunctional catalysts. Various approaches improve or optimize are introduced. Finally, current existing challenges future working directions enhancing performance Co‐implicated proposed.

Language: Английский

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Homogeneously dispersed multimetal oxygen-evolving catalysts

Science, Journal Year: 2016, Volume and Issue: 352(6283), P. 333 - 337

Published: March 25, 2016

Earth-abundant first-row (3d) transition metal-based catalysts have been developed for the oxygen-evolution reaction (OER); however, they operate at overpotentials substantially above thermodynamic requirements. Density functional theory suggested that non-3d high-valency metals such as tungsten can modulate 3d metal oxides, providing near-optimal adsorption energies OER intermediates. We a room-temperature synthesis to produce gelled oxyhydroxides materials with an atomically homogeneous distribution. These FeCoW exhibit lowest overpotential (191 millivolts) reported 10 milliamperes per square centimeter in alkaline electrolyte. The catalyst shows no evidence of degradation after more than 500 hours operation. X-ray absorption and computational studies reveal synergistic interplay between tungsten, iron, cobalt producing favorable local coordination environment electronic structure enhance energetics OER.

Language: Английский

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A review on fundamentals for designing oxygen evolution electrocatalysts

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(7), P. 2196 - 2214

Published: Jan. 1, 2020

The fundamentals related to the oxygen evolution reaction and catalyst design are summarized discussed.

Language: Английский

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Ultrathin Two-Dimensional Nanomaterials

ACS Nano, Journal Year: 2015, Volume and Issue: 9(10), P. 9451 - 9469

Published: Sept. 25, 2015

The past decade has witnessed an extraordinary increase in research progress on ultrathin two-dimensional (2D) nanomaterials the fields of condensed matter physics, materials science, and chemistry after exfoliation graphene from graphite 2004. This unique class shown many unprecedented properties thus is being explored for numerous promising applications. In this Perspective, I briefly review state art development 2D highlight their advantages. Then, discuss typical synthetic methods some applications together with personal insights challenges area. Finally, basis current achievement nanomaterials, give perspectives potential future directions.

Language: Английский

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Cocatalysts for Selective Photoreduction of CO₂into Solar Fuels

Chemical Reviews, Journal Year: 2019, Volume and Issue: 119(6), P. 3962 - 4179

Published: Feb. 14, 2019

Photoreduction of CO2 into sustainable and green solar fuels is generally believed to be an appealing solution simultaneously overcome both environmental problems energy crisis. The low selectivity challenging multi-electron photoreduction reactions makes it one the holy grails in heterogeneous photocatalysis. This Review highlights important roles cocatalysts selective photocatalytic reduction using semiconductor catalysts. A special emphasis this review placed on key role, design considerations modification strategies for photoreduction. Various cocatalysts, such as biomimetic, metal-based, metal-free, multifunctional ones, their are summarized discussed, along with recent advances area. provides useful information highly photo(electro)reduction electroreduction complements existing reviews various photocatalysts.

Language: Английский

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