Superb water splitting activity of the electrocatalyst Fe3Co(PO4)4 designed with computation aid DOI Creative Commons
Siraj Sultan, Miran Ha, Dong Yeon Kim

et al.

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: Nov. 15, 2019

For efficient water splitting, it is essential to develop inexpensive and super-efficient electrocatalysts for the oxygen evolution reaction (OER). Herein, we report a phosphate-based electrocatalyst [Fe3Co(PO4)4@reduced-graphene-oxide(rGO)] showing outstanding OER performance (much higher than state-of-the-art Ir/C catalysts), design of which was aided by first-principles calculations. This displays low overpotential (237 mV at high current density 100 mA cm-2 in 1 M KOH), turnover frequency (TOF: 0.54 s-1), Faradaic efficiency (98%), long-term durability. Its remarkable ascribed optimal free energy Fe sites mass/charge transfer. When Fe3Co(PO4)4@rGO anodic electrode integrated with Pt/C cathodic electrode, electrolyzer requires only 1.45 V achieve 10 whole splitting KOH (1.39 6 much smaller commercial Ir-C//Pt-C electrocatalysts. cost-effective powerful production material carbon-supporting substrates offers great promise splitting.

Language: Английский

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

Congling Hu,

Lei Zhang, Jinlong Gong

et al.

Energy & Environmental Science, Journal Year: 2019, Volume and Issue: 12(9), P. 2620 - 2645

Published: Jan. 1, 2019

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

Language: Английский

Citations

1380
Single-Atom Catalysts across the Periodic Table DOI
Selina K. Kaiser, Zupeng Chen, Dario Faust Akl

et al.

Chemical Reviews, Journal Year: 2020, Volume and Issue: 120(21), P. 11703 - 11809

Published: Oct. 21, 2020

Isolated atoms featuring unique reactivity are at the heart of enzymatic and homogeneous catalysts. In contrast, although concept has long existed, single-atom heterogeneous catalysts (SACs) have only recently gained prominence. Host materials similar functions to ligands in catalysts, determining stability, local environment, electronic properties isolated thus providing a platform for tailoring targeted applications. Within just decade, we witnessed many examples SACs both disrupting diverse fields catalysis with their distinctive substantially enriching our understanding molecular processes on surfaces. To date, term SAC mostly refers late transition metal-based systems, but numerous exist which other elements play key catalytic roles. This review provides compositional encyclopedia SACs, celebrating 10th anniversary introduction this term. By defining broadest sense, explore full elemental diversity, joining different areas across whole periodic table, discussing historical milestones recent developments. particular, examine coordination structures associated accessed through distinct single-atom–host combinations relate them main applications thermo-, electro-, photocatalysis, revealing trends element-specific evolution, host design, uses. Finally, highlight frontiers field, including multimetallic atom proximity control, possible multistep cascade reactions, identifying challenges, propose directions future development flourishing field.

Language: Английский

Citations

1012
Recent Advances on Water‐Splitting Electrocatalysis Mediated by Noble‐Metal‐Based Nanostructured Materials DOI
Yingjie Li,

Yingjun Sun,

Yingnan Qin

et al.

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 10(11)

Published: Feb. 6, 2020

Abstract Electrochemical water splitting plays a crucial role in the development of clean and renewable energy production conversion, which is promising pathway to reduce social dependence on fossil fuels. Thus, highly active, cost‐efficient, robust catalysts must be developed reaction overpotential increase electrocatalytic efficiency. In this review, recent research efforts toward developing advanced electrocatalysts based noble metals with outstanding performance for catalysis, mainly dependent their structure engineering, are summarized. First, simple description water‐splitting mechanism some engineering strategies given, including heteroatom incorporation, strain interface/hybrid single atomic construction. Then, underlying relationship between metal electronic/geometric discussed assistance theoretical simulation. Finally, personal perspective provided order highlight challenges opportunities novel suitable wide range commercial uses structural applications.

Language: Английский

Citations

873
Atomic site electrocatalysts for water splitting, oxygen reduction and selective oxidation DOI
Di Zhao, Zewen Zhuang, Xing Cao

et al.

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(7), P. 2215 - 2264

Published: Jan. 1, 2020

This review summarized the fabrication routes and characterization methods of atomic site electrocatalysts (ASCs) followed by their applications for water splitting, oxygen reduction selective oxidation.

Language: Английский

Citations

716
Single‐Atom Cr−N4 Sites Designed for Durable Oxygen Reduction Catalysis in Acid Media DOI
Ergui Luo, Hao Zhang, Xian Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2019, Volume and Issue: 58(36), P. 12469 - 12475

Published: July 10, 2019

Single-atom catalysts (SACs) are attracting widespread interest for the catalytic oxygen reduction reaction (ORR), with Fe-Nx SACs exhibiting most promising activity. However, Fe-based suffer serious stability issues as a result of oxidative corrosion through Fenton reaction. Herein, using metal-organic framework an anchoring matrix, we first time obtained pyrolyzed Cr/N/C ORR, where atomically dispersed Cr is confirmed to have Cr-N4 coordination structure. The catalyst exhibits excellent ORR activity optimal half-wave potential 0.773 V versus RHE. More excitingly, substantially reduced and, thus, final show superb stability. innovative and robust active site opens new possibility circumvent issue non-noble metal catalysts.

Language: Английский

Citations

343
Microenvironment modulation of single-atom catalysts and their roles in electrochemical energy conversion DOI Creative Commons
Xuning Li, Linghui Liu,

Xinyi Ren

et al.

Science Advances, Journal Year: 2020, Volume and Issue: 6(39)

Published: Sept. 24, 2020

Microenvironment engineering of single-atom catalysts paves the way toward efficient electrochemical energy conversion.

Language: Английский

Citations

320
Perfecting electrocatalystsviaimperfections: towards the large-scale deployment of water electrolysis technology DOI
Shilong Jiao, Xianwei Fu, Shuangyin Wang

et al.

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(4), P. 1722 - 1770

Published: Jan. 1, 2021

A tuned electronic structure favors the electrocatalytic water splitting reactionviaaccelerating reaction kinetics, changing rate-determining step, and optimizing adsorption energy for intermediates; this is achievedviaintentionally incorporating imperfections into crystal lattices of electrocatalysts.

Language: Английский

Citations

301
Optimized Metal Chalcogenides for Boosting Water Splitting DOI Creative Commons
Jie Yin, Jing Jin, Honghong Lin

et al.

Advanced Science, Journal Year: 2020, Volume and Issue: 7(10)

Published: April 6, 2020

Abstract Electrocatalytic water splitting (2H 2 O → 2H + ) is a very promising avenue to effectively and environmentally friendly produce highly pure hydrogen (H oxygen (O at large scale. Different materials have been developed enhance the efficiency for splitting. Among them, chalcogenides with unique atomic arrangement high electronic transport show interesting catalytic properties in various electrochemical reactions, such as evolution reaction, overall splitting, while control of their morphology structure vital importance performance. Herein, general synthetic methods are summarized prepare metal different strategies designed improve performance The remaining challenges research development possible directions future also summarized.

Language: Английский

Citations

250
Graphene-nanoplatelets-supported NiFe-MOF: high-efficiency and ultra-stable oxygen electrodes for sustained alkaline anion exchange membrane water electrolysis DOI
Pandiarajan Thangavel, Miran Ha,

Shanmugasundaram Kumaraguru

et al.

Energy & Environmental Science, Journal Year: 2020, Volume and Issue: 13(10), P. 3447 - 3458

Published: Jan. 1, 2020

A simple and effective strategy for fabricating high-stability alkaline anion exchange membrane water electrolyzers large-scale hydrogen production.

Language: Английский

Citations

244
Tuning metal single atoms embedded in NxCy moieties toward high-performance electrocatalysis DOI Creative Commons
Miran Ha, Dong Yeon Kim, Muhammad Umer

et al.

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(6), P. 3455 - 3468

Published: Jan. 1, 2021

High-performance 3d–5d transition metal single atom electrocatalysts ligated by various –NxCy moieties of N-doped graphene are investigated for hydrogen evolution and oxygen evolution/reduction reactions using high-throughput computational screening machine learning.

Language: Английский

Citations

234