A review on fundamentals for designing oxygen evolution electrocatalysts

Chemical Society Reviews, Год журнала: 2020, Номер 49(7), С. 2196 - 2214

Опубликована: Янв. 1, 2020

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

Язык: Английский

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State of the Art and Prospects in Metal–Organic Framework (MOF)-Based and MOF-Derived Nanocatalysis

Chemical Reviews, Год журнала: 2019, Номер 120(2), С. 1438 - 1511

Опубликована: Июнь 27, 2019

Metal–organic framework (MOF) nanoparticles, also called porous coordination polymers, are a major part of nanomaterials science, and their role in catalysis is becoming central. The extraordinary variability richness structures afford engineering synergies between the metal nodes, functional linkers, encapsulated substrates, or nanoparticles for multiple selective heterogeneous interactions activations these MOF-based nanocatalysts. Pyrolysis MOF-nanoparticle composites forms highly N- P-doped graphitized MOF-derived that increasingly used as efficient catalysts especially electro- photocatalysis. This review first briefly summarizes this background MOF nanoparticle then comprehensively reviews fast-growing literature reported during last years. parts organic molecular reactions, electrocatalysis, photocatalysis, views prospects. Major challenges our society addressed using well-defined fields synthesis, energy, environment. In spite many achievements, enormous progress still necessary to improve understanding processes involved beyond proof-of-concept, particularly methane oxidation, hydrogen production, water splitting, CO2 reduction methanol, nitrogen fixation, depollution.

Язык: Английский

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Review of electrical energy storage technologies, materials and systems: challenges and prospects for large-scale grid storage

Energy & Environmental Science, Год журнала: 2018, Номер 11(10), С. 2696 - 2767

Опубликована: Янв. 1, 2018

Large scale storage technologies are vital to increase the share of renewable electricity in global energy mix.

Язык: Английский

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Emerging Two-Dimensional Nanomaterials for Electrocatalysis

Chemical Reviews, Год журнала: 2018, Номер 118(13), С. 6337 - 6408

Опубликована: Март 19, 2018

Over the past few decades, design and development of advanced electrocatalysts for efficient energy conversion technologies have been subjects extensive study. With discovery graphene, two-dimensional (2D) nanomaterials emerged as some most promising candidates heterogeneous due to their unique physical, chemical, electronic properties. Here, we review 2D-nanomaterial-based selected electrocatalytic processes. We first discuss advances in 2D based on different compositions functions followed by specific principles. Following this overview, various processes involved water cycle, carbon nitrogen cycle from fundamental conception functional application. place a significant emphasis engineering strategies influence these intrinsic material performance, such properties adsorption energetics. Finally, feature opportunities challenges ahead electrocatalysts. By considering theoretical calculations, surface characterization, electrochemical tests, describe relationships between structure, energy, apparent activity wide variety with goal providing better understanding emerging at atomic level.

Язык: Английский

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Self‐Supported Transition‐Metal‐Based Electrocatalysts for Hydrogen and Oxygen Evolution

Advanced Materials, Год журнала: 2019, Номер 32(3)

Опубликована: Апрель 1, 2019

Abstract Electrochemical water splitting is a promising technology for sustainable conversion, storage, and transport of hydrogen energy. Searching earth‐abundant hydrogen/oxygen evolution reaction (HER/OER) electrocatalysts with high activity durability to replace noble‐metal‐based catalysts plays paramount importance in the scalable application electrolysis. A freestanding electrode architecture highly attractive as compared conventional coated powdery form because enhanced kinetics stability. Herein, recent progress developing transition‐metal‐based HER/OER electrocatalytic materials reviewed selected examples chalcogenides, phosphides, carbides, nitrides, alloys, phosphates, oxides, hydroxides, oxyhydroxides. Focusing on self‐supported electrodes, latest advances their structural design, controllable synthesis, mechanistic understanding, strategies performance enhancement are presented. Remaining challenges future perspectives further development also discussed.

Язык: Английский

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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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Spinels: Controlled Preparation, Oxygen Reduction/Evolution Reaction Application, and Beyond

Chemical Reviews, Год журнала: 2017, Номер 117(15), С. 10121 - 10211

Опубликована: Июль 26, 2017

Spinels with the formula of AB2O4 (where A and B are metal ions) properties magnetism, optics, electricity, catalysis have taken significant roles in applications data storage, biotechnology, electronics, laser, sensor, conversion reaction, energy storage/conversion, which largely depend on their precise structures compositions. In this review, various spinels controlled preparations oxygen reduction/evolution reaction (ORR/OER) beyond summarized. First, composition structure introduced. Then, recent advances preparation solid-, solution-, vapor-phase methods summarized, new particularly highlighted. The physicochemical characteristics such as compositions, structures, morphologies, defects, substrates been rationally regulated through approaches. This regulation can yield improved ORR/OER catalytic activities, further accelerate speed, prolong life, narrow polarization fuel cells, metal-air batteries, water splitting devices. Finally, magnetic, optical, electrical, OER/ORR also discussed. future considered to be closely related environmental issues, will aided by development species advanced characterizations.

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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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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