Transition metal nitrides for electrochemical energy applications

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 50(2), P. 1354 - 1390

Published: Dec. 10, 2020

This review comprehensively summarizes the progress on structural and electronic modulation of transition metal nitrides for electrochemical energy applications.

Language: Английский

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The roles of oxygen vacancies in electrocatalytic oxygen evolution reaction

Nano Energy, Journal Year: 2020, Volume and Issue: 73, P. 104761 - 104761

Published: April 15, 2020

Language: Английский

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Single‐Atom Catalysts for Electrocatalytic Applications

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 30(31)

Published: June 9, 2020

Abstract The recent advances in electrocatalysis for oxygen reduction reaction (ORR), evolution (OER), hydrogen (HER), oxidation (HOR), carbon dioxide (CO 2 RR), and nitrogen (NRR) are thoroughly reviewed. This comprehensive review focuses on the single‐atom catalysts (SACs) including Sc, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, Sn, W, Bi, Ru, Rh, Pd, Ag, Ir, Pt, Au with single‐metal sites or dual‐metal sites. development of electrocatalysts novel configurations compositions is documented. understanding process–structure–property relationships highlighted. For SACs, their electrocatalytic performance stability fuel cells, zinc–air batteries, electrolyzers, CO RR, NRR summarized. challenges perspectives emerging field discussed.

Language: Английский

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High energy-power Zn-ion hybrid supercapacitors enabled by layered B/N co-doped carbon cathode

Nano Energy, Journal Year: 2019, Volume and Issue: 66, P. 104132 - 104132

Published: Sept. 27, 2019

Language: Английский

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Structural Transformation of Heterogeneous Materials for Electrocatalytic Oxygen Evolution Reaction

Chemical Reviews, Journal Year: 2021, Volume and Issue: 121(21), P. 13174 - 13212

Published: Sept. 15, 2021

Electrochemical water splitting for hydrogen generation is a promising pathway renewable energy conversion and storage. One of the most important issues efficient to develop cost-effective highly electrocatalysts drive sluggish oxygen-evolution reaction (OER) at anode side. Notably, structural transformation such as surface oxidation metals or metal nonoxide compounds amorphization some oxides during OER have attracted growing attention in recent years. The investigation will contribute in-depth understanding accurate catalytic mechanisms finally benefit rational design materials with high activity. In this Review, we provide an overview heterogeneous obvious electrocatalysis. To gain insight into essence transformation, summarize driving forces critical factors that affect process. addition, advanced techniques are used probe chemical states atomic structures transformed surfaces also introduced. We then discuss structure active species relationship between performance properties materials. Finally, challenges prospects electrocatalysis presented.

Language: Английский

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3D Printing for Electrochemical Energy Applications

Chemical Reviews, Journal Year: 2020, Volume and Issue: 120(5), P. 2783 - 2810

Published: Feb. 12, 2020

Additive manufacturing (also known as three-dimensional (3D) printing) is being extensively utilized in many areas of electrochemistry to produce electrodes and devices, this technique allows for fast prototyping relatively low cost. Furthermore, there a variety 3D-printing technologies available, which include fused deposition modeling (FDM), inkjet printing, select laser melting (SLM), stereolithography (SLA), making additive highly desirable electrochemical purposes. In particular, over the last number years, significant amount research into using 3D printing create electrodes/devices energy conversion storage has emerged. Strides have been made area; however, are still challenges drawbacks that need be overcome order print active stable rival state-of-the-art. Review, we will give an overview reasoning behind these applications. We then discuss how performance affected by various manipulating 3D-printed post modification techniques. Finally, our insights future perspectives exciting field based on discussion through Review.

Language: Английский

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Metal–Organic Layers Leading to Atomically Thin Bismuthene for Efficient Carbon Dioxide Electroreduction to Liquid Fuel

Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 59(35), P. 15014 - 15020

Published: May 18, 2020

Abstract Electrochemical reduction of CO 2 to valuable fuels is appealing for fixation and energy storage. However, the development electrocatalysts with high activity selectivity in a wide potential window challenging. Herein, atomically thin bismuthene (Bi‐ene) pioneeringly obtained by an situ electrochemical transformation from ultrathin bismuth‐based metal–organic layers. The few‐layer Bi‐ene, which possesses great mass exposed active sites intrinsic activity, has (ca. 100 %), large partial current density, quite good stability exceeding 0.35 V toward formate production. It even deliver densities that exceed 300.0 mA cm −2 without compromising flow‐cell reactor. Using ATR‐IR spectra DFT analysis, reaction mechanism involving HCO 3 − generation was unveiled, brings new fundamental understanding reduction.

Language: Английский

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Designing High‐Valence Metal Sites for Electrochemical Water Splitting

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(16)

Published: Feb. 17, 2021

Abstract Electrochemical water splitting is a critical energy conversion process for producing clean and sustainable hydrogen; this relies on low‐cost, highly active, durable oxygen evolution reaction/hydrogen reaction electrocatalysts. Metal cations (including transition metal noble cations), particularly high‐valence that show high catalytic activity can serve as the main active sites in electrochemical processes, have received special attention developing advanced In review, heterogenous electrocatalyst design strategies based are presented, associated materials designed summarized. discussion, emphasis given to combined with modulation of phase/electronic/defect structure performance improvement. Specifically, importance using situ operando techniques track real metal‐based during highlighted. Remaining challenges future research directions also proposed. It expected comprehensive discussion electrocatalysts containing be instructive further explore other energy‐related reactions.

Language: Английский

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Oxygen‐Incorporated NiMoP Nanotube Arrays as Efficient Bifunctional Electrocatalysts For Urea‐Assisted Energy‐Saving Hydrogen Production in Alkaline Electrolyte

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(43)

Published: July 29, 2021

Abstract To couple hydrogen evolution reaction (HER) with urea oxidation (UOR) is a promising approach to produce H 2 reduced energy consumption. However, the development of low‐cost and high‐performance bifunctional electrocatalyst toward HER UOR still challenge. In this work, oxygen‐incorporated nickel molybdenum phosphide nanotube arrays are synthesized on foam (O‐NiMoP/NF) via electrodeposition accompanied in‐situ template etching. Benefiting from modulated electronic structure array architecture O‐NiMoP, self‐supporting O‐NiMoP/NF electrodes demonstrate highly efficient catalytic activity UOR. Particularly, in (HER||UOR) coupled system for production, significantly cell voltage 1.55 V obtained at current density 50 mA cm –2 , which about 300 mV lower than that conventional water electrolysis. Density functional theory calculations reveal remarkable activities originated Ni sites environment induced by Mo, P O atoms, facilitate dissociation during balance adsorption/desorption intermediates The Ni‐based phosphides as HER||OER provides new enabling energy‐saving production.

Language: Английский

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Engineered 2D Transition Metal Dichalcogenides—A Vision of Viable Hydrogen Evolution Reaction Catalysis

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 10(16)

Published: March 4, 2020

Abstract The hydrogen evolution reaction (HER) is an emerging key technology to provide clean, renewable energy. Current state‐of‐the‐art catalysts still rely on expensive and rare noble metals, however, the relatively cheap abundant transition metal dichalcogenides (TMDs) have emerged as exceptionally promising alternatives. Early studies in developing TMD‐based laid groundwork understanding fundamental catalytically active sites of different TMD phases, enabling a toolbox physical, chemical, electronic engineering strategies improve HER catalytic activity TMDs. This report focuses recent progress improving properties TMDs toward highly efficient production H 2 . Combining theoretical experimental considerations, summary date provided pathway forward for viable from driven catalysis concluded.

Language: Английский

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