Host, Suppressor, and Promoter—The Roles of Ni and Fe on Oxygen Evolution Reaction Activity and Stability of NiFe Alloy Thin Films in Alkaline Media DOI Creative Commons
Fuxi Bao, Erno Kemppainen,

Iris Dorbandt

et al.

ACS Catalysis, Journal Year: 2021, Volume and Issue: 11(16), P. 10537 - 10552

Published: Aug. 9, 2021

Understanding the oxygen evolution reaction (OER) activity and stability of NiFe-based materials is important for achieving low-cost highly efficient electrocatalysts practical water splitting. Here, we report roles Ni Fe on OER metallic NiFe pure thin films in alkaline media. Our results support that Ni(OH)2/NiOOH does not contribute to directly, but it serves as an ideal host incorporation, which essential obtaining high activity. Furthermore, availability electrolyte found be necessary both maintain enhanced performance, while presence detrimental kinetics. The impacts species present KOH are consistent with dissolution/re-deposition mechanism proposed. Stability studies show will degrade under prolonged continuous operation. Satisfactory can, however, achieved intermittent operation, electrocatalyst cycled between degraded recovered states. Accordingly, two ranges, is, recovery range degradation range, Compared operation (i.e., range) generates a higher NiOOH content electrocatalyst, likely related deactivation. If electrode works certain period, at sufficiently low reduction potential, where Ni3+ reduced Ni2+, can maintained even improved if also electrolyte.

Language: Английский

Water electrolysis: from textbook knowledge to the latest scientific strategies and industrial developments DOI Creative Commons
Marian Chatenet, Bruno G. Pollet, Dario R. Dekel

et al.

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(11), P. 4583 - 4762

Published: Jan. 1, 2022

Replacing fossil fuels with energy sources and carriers that are sustainable, environmentally benign, affordable is amongst the most pressing challenges for future socio-economic development.

Language: Английский

Citations

1022
Tailoring the d-Band Centers Endows (NixFe1–x)2P Nanosheets with Efficient Oxygen Evolution Catalysis DOI
Shanfu Sun,

Xin Zhou,

Bowen Cong

et al.

ACS Catalysis, Journal Year: 2020, Volume and Issue: 10(16), P. 9086 - 9097

Published: July 20, 2020

The rational design of oxygen evolution reaction (OER) catalysts from the perspective electronic structure is highly desirable to optimize electrocatalytic activity. Monometallic phosphides such as Ni2P have been shown be active toward OER, but their performance remains unsatisfactory. Herein, guided by theoretical mechanism study intrinsic high electroactivity revealed in d-band center (Ed) theory, Fe-substituted ((NixFe1–x)2P) nanosheets grown directly on NiFe foam are designed and synthesized. As OER electrocatalysts alkaline media, (NixFe1–x)2P show an overpotential 166 mV deliver current density 10 mA cm–2, which superior most reported transition-metal-based catalysts. Combining DFT simulations with experiments reveals that enhanced activity results moderate rise Ed energy levels, balances adsorption desorption capacities oxygen-containing intermediates (*O, *OH, *OOH). This work supplies valuable insights for construction efficient doped under guidance theory.

Language: Английский

Citations

624
Recent advances in transition-metal-sulfide-based bifunctional electrocatalysts for overall water splitting DOI
Min Wang, Li Zhang, Yijia He

et al.

Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 9(9), P. 5320 - 5363

Published: Jan. 1, 2021

This review summarizes recent advances relating to transition metal sulfide (TMS)-based bifunctional electrocatalysts, providing guidelines for the design and fabrication of TMS-based catalysts practical application in water electrolysis.

Language: Английский

Citations

462
Doping regulation in transition metal compounds for electrocatalysis DOI
An Zhang, Yongxiang Liang, Han Zhang

et al.

Chemical Society Reviews, Journal Year: 2021, Volume and Issue: 50(17), P. 9817 - 9844

Published: Jan. 1, 2021

This review summarizes the recent progress related to field of doping regulation in transition metal compounds, aiming give an overview this strategy for designing high-performance catalysts towards electrocatalytic applications.

Language: Английский

Citations

428
Stability and deactivation of OER electrocatalysts: A review DOI
Feng Zeng, Chalachew Mebrahtu,

Longfei Liao

et al.

Journal of Energy Chemistry, Journal Year: 2022, Volume and Issue: 69, P. 301 - 329

Published: Jan. 29, 2022

Language: Английский

Citations

357
Oxygen Evolution/Reduction Reaction Catalysts: From In Situ Monitoring and Reaction Mechanisms to Rational Design DOI
Yonggui Zhao, Devi Prasad Adiyeri Saseendran, Chong Huang

et al.

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(9), P. 6257 - 6358

Published: March 21, 2023

The oxygen evolution reaction (OER) and reduction (ORR) are core steps of various energy conversion storage systems. However, their sluggish kinetics, i.e., the demanding multielectron transfer processes, still render OER/ORR catalysts less efficient for practical applications. Moreover, complexity catalyst–electrolyte interface makes a comprehensive understanding intrinsic mechanisms challenging. Fortunately, recent advances in situ/operando characterization techniques have facilitated kinetic monitoring under conditions. Here we provide selected highlights mechanistic studies with main emphasis placed on heterogeneous systems (primarily discussing first-row transition metals which operate basic conditions), followed by brief outlook molecular catalysts. Key sections this review focused determination true active species, identification sites, reactive intermediates. For in-depth insights into above factors, short overview metrics accurate characterizations is provided. A combination obtained time-resolved information reliable activity data will then guide rational design new Strategies such as optimizing restructuring process well overcoming adsorption-energy scaling relations be discussed. Finally, pending current challenges prospects toward development homogeneous presented.

Language: Английский

Citations

331
Heterojunction catalyst in electrocatalytic water splitting DOI
Zhenxing Li,

Mingliang Hu,

Ping Wang

et al.

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 439, P. 213953 - 213953

Published: April 18, 2021

Language: Английский

Citations

328
Recent advances in highly active nanostructured NiFe LDH catalyst for electrochemical water splitting DOI
Pradnya M. Bodhankar, Pradip B. Sarawade, Gurwinder Singh

et al.

Journal of Materials Chemistry A, Journal Year: 2020, Volume and Issue: 9(6), P. 3180 - 3208

Published: Dec. 11, 2020

The progress in the design strategies and synthetic mechanisms for each class of NiFe LDH electrocatalysts as well key trends structural characterizations catalyzing water splitting process are discussed.

Language: Английский

Citations

326
Electrochemical Water Splitting: Bridging the Gaps Between Fundamental Research and Industrial Applications DOI Open Access
Hainan Sun, Xiaomin Xu, Hyunseung Kim

et al.

Energy & environment materials, Journal Year: 2022, Volume and Issue: 6(5)

Published: May 28, 2022

Electrochemical water splitting represents one of the most promising technologies to produce green hydrogen, which can help realize goal achieving carbon neutrality. While substantial efforts on a laboratory scale have been made for understanding fundamental catalysis and developing high‐performance electrocatalysts two half‐reactions involved in electrocatalysis, much less attention has paid doing relevant research larger scale. For example, few such researches done an industrial Herein, we review very recent endeavors bridge gaps between applications electrolysis. We begin by introducing fundamentals electrochemical then present comparisons testing protocol, figure merit, catalyst interest, manufacturing cost industry‐based water‐electrolysis research. Special is tracking surface reconstruction process identifying real catalytic species under different conditions, highlight significant distinctions corresponding mechanisms. Advances designs industry‐relevant electrolysis are also summarized, reveal progress moving practical forward accelerating synergies material science engineering. Perspectives challenges electrocatalyst design strategies proposed finally further lab‐scale large‐scale electrocatalysis applications.

Language: Английский

Citations

313
NiCo-Based Electrocatalysts for the Alkaline Oxygen Evolution Reaction: A Review DOI
Yongchao Zhang,

Caidi Han,

Jian Gao

et al.

ACS Catalysis, Journal Year: 2021, Volume and Issue: 11(20), P. 12485 - 12509

Published: Sept. 27, 2021

Electrocatalytic water splitting is a sustainable way to produce hydrogen energy, but the oxygen evolution reaction (OER) at anode has sluggish kinetics and low energy conversion efficiency, which major bottleneck for large-scale production. The design synthesis of robust low-cost OER catalysts are crucial OER. NiCo-based electrocatalysts have suitable atomic electronic structures, show high activity stability during process. Recently, significant progress been made in regulating structure composition understanding nature catalysis, especially mechanism, catalytic active sites, structure–activity relationship. In this work, we summarized discussed latest development OER, with particular emphasis on catalyst synthesis, strategies boosting performance, catalysis from experimental theoretical perspectives. some descriptors, relationships based unveiled. Finally, challenges futuristic outlooks improving performance proposed, hope review can provide guidance more efficient electrocatalysts.

Language: Английский

Citations

304