Transition Metal Oxides as Electrocatalysts for the Oxygen Evolution Reaction in Alkaline Solutions: An Application-Inspired Renaissance

Journal of the American Chemical Society, Год журнала: 2018, Номер 140(25), С. 7748 - 7759

Опубликована: Май 22, 2018

Water splitting is the essential chemical reaction to enable storage of intermittent energies such as solar and wind in form hydrogen fuel. The oxygen evolution (OER) often considered bottleneck water splitting. Though metal oxides had been reported OER electrocatalysts more than half a century ago, recent interest renewable energy has spurred renaissance studies transition Earth-abundant nonprecious catalysts. This Perspective presents major progress several key areas field theoretical understanding, activity trend, situ operando characterization, active site determination, novel materials. A personal overview past achievements future challenges also provided.

Язык: Английский

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Clean and Affordable Hydrogen Fuel from Alkaline Water Splitting: Past, Recent Progress, and Future Prospects

Advanced Materials, Год журнала: 2021, Номер 33(31)

Опубликована: Июнь 12, 2021

Abstract Hydrogen economy has emerged as a very promising alternative to the current hydrocarbon economy, which involves process of harvesting renewable energy split water into hydrogen and oxygen then further utilization clean fuel. The production by electrolysis is an essential prerequisite with zero carbon emission. Among various technologies, alkaline splitting been commercialized for more than 100 years, representing most mature economic technology. Here, historic development overviewed, several critical electrochemical parameters are discussed. After that, advanced nonprecious metal electrocatalysts that recently negotiating evolution reaction (OER) (HER) discussed, including transition oxides, (oxy)hydroxides, chalcogenides, phosphides, nitrides OER, well alloys, carbides HER. In this section, particular attention paid catalyst synthesis, activity stability challenges, performance improvement, industry‐relevant developments. Some recent works about scaled‐up novel electrode designs, seawater also spotlighted. Finally, outlook on future challenges opportunities offered, potential directions speculated.

Язык: Английский

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Recent progress made in the mechanism comprehension and design of electrocatalysts for alkaline water splitting

Energy & Environmental Science, Год журнала: 2019, Номер 12(9), С. 2620 - 2645

Опубликована: Янв. 1, 2019

Alkaline water splitting is an attractive method for sustainable hydrogen production.

Язык: Английский

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Materials for solar fuels and chemicals

Nature Materials, Год журнала: 2016, Номер 16(1), С. 70 - 81

Опубликована: Дек. 20, 2016

Язык: Английский

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Chemical and structural origin of lattice oxygen oxidation in Co–Zn oxyhydroxide oxygen evolution electrocatalysts

Nature Energy, Год журнала: 2019, Номер 4(4), С. 329 - 338

Опубликована: Март 25, 2019

Язык: Английский

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Metal–Organic Frameworks in Heterogeneous Catalysis: Recent Progress, New Trends, and Future Perspectives

Chemical Reviews, Год журнала: 2020, Номер 120(16), С. 8468 - 8535

Опубликована: Март 30, 2020

More than 95% (in volume) of all today's chemical products are manufactured through catalytic processes, making research into more efficient materials a thrilling and very dynamic field. In this regard, metal-organic frameworks (MOFs) offer great opportunities for the rational design new solids, as highlighted by unprecedented number publications appearing over past decade. review, recent advances in application MOFs heterogeneous catalysis discussed. with intrinsic thermocatalytic activity, hosts incorporation metal nanoparticles, precursors manufacture composite catalysts those active photo- electrocatalytic processes critically reviewed. The review is wrapped up our personal view on future directions.

Язык: Английский

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Ultrathin Iron‐Cobalt Oxide Nanosheets with Abundant Oxygen Vacancies for the Oxygen Evolution Reaction

Advanced Materials, Год журнала: 2017, Номер 29(17)

Опубликована: Фев. 27, 2017

Electrochemical water splitting is a promising method for storing light/electrical energy in the form of H 2 fuel; however, it limited by sluggish anodic oxygen evolution reaction (OER). To improve accessibility production, necessary to develop an efficient OER catalyst with large surface area, abundant active sites, and good stability, through low‐cost fabrication route. Herein, facile solution reduction using NaBH 4 as reductant developed prepare iron‐cobalt oxide nanosheets (Fe x Co y ‐ONSs) specific area (up 261.1 m g −1 ), ultrathin thickness (1.2 nm), and, importantly, vacancies. The mass activity Fe 1 ‐ONS measured at overpotential 350 mV reaches up 54.9 A , while its Tafel slope 36.8 dec ; both which are superior those commercial RuO crystalline ‐ONP, most reported catalysts. excellent catalytic can be attributed structure, e.g., that could facilitate diffusion/transport OH − ions provide more sites catalysis, vacancies electronic conductivity adsorption O onto nearby 3+ sites.

Язык: Английский

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What Should We Make with CO2 and How Can We Make It?

Joule, Год журнала: 2018, Номер 2(5), С. 825 - 832

Опубликована: Март 29, 2018

Язык: Английский

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Single‐Atom Electrocatalysts

Angewandte Chemie International Edition, Год журнала: 2017, Номер 56(45), С. 13944 - 13960

Опубликована: Май 24, 2017

Abstract Recent years have witnessed a dramatic increase in the production of sustainable and renewable energy. However, electrochemical performances various systems are limited, there is an intensive search for highly efficient electrocatalysts by more rational control over size, shape, composition, structure. Of particular interest studies on single‐atom catalysts (SACs), which sparked new interests electrocatalysis because their high catalytic activity, stability, selectivity, 100 % atom utilization. In this Review, we introduce innovative syntheses characterization techniques SACs, with focus applications oxygen reduction/evolution reaction, hydrogen evolution hydrocarbon conversion reactions fuel cells (electrooxidation methanol, ethanol, formic acid). The electrocatalytic performance further considered at atomic level underlying mechanisms discussed. ultimate goal tailoring single atoms applications.

Язык: Английский

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Cu nanowires shelled with NiFe layered double hydroxide nanosheets as bifunctional electrocatalysts for overall water splitting

Energy & Environmental Science, Год журнала: 2017, Номер 10(8), С. 1820 - 1827

Опубликована: Янв. 1, 2017

3D core–shell nanostructures of few-layer NiFe LDH nanosheets grown on Cu nanowires are fabricated toward highly efficient overall water splitting.

Язык: Английский

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