Room temperature, fast fabrication of square meter-sized oxygen evolution electrode toward industrial alkaline electrolyzer

Article Chemistry, Physical

NiFe Layered Double Hydroxides Grown on a Corrosion-Cell Cathode for Oxygen Evolution Electrocatalysis

Wei Zhao et al.

Summary: This study elucidates the growth mechanism of NiFe-LDH@IF, optimizes corrosion conditions, and improves electrocatalytic performance, providing guidance for the preparation of self-supported LDH for hydrogen production.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Multidisciplinary

S-Doping Triggers Redox Reactivities of Both Iron and Lattice Oxygen in FeOOH for Low-Cost and High-Performance Water Oxidation

Xiang Chen et al.

Summary: In this study, a one-step method was developed to grow S-doped FeOOH nanosheets on iron foam (IF) as efficient electrocatalysts for hydrogen evolution reaction. The as-obtained S-FeOOH/IF electrode showed excellent OER performance with low overpotential and high activity.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Physical

Electrocatalysis Goes Nuts

Andrew R. Akbashev

Summary: Researchers often overlook the complexity and usability of nanoelectrocatalysts with outstanding performance, leading to a lack of meaningful interpretation and scientific insight in previous studies. This article suggests that experiments should be designed to minimize the complexity of electrode materials in order to obtain interpretable electrochemical responses. Greater recognition of the challenges in this field will help improve the quality of research in electrocatalysis.

ACS CATALYSIS (2022)

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Article Chemistry, Physical

Rational Design and Spontaneous Sulfurization of NiCo-(oxy)Hydroxysulfides Nanosheets with Modulated Local Electronic Configuration for Enhancing Oxygen Electrocatalysis

Xuerong Zheng et al.

Summary: This study reveals the importance of chalcogens in transition metal chalcogenides for the oxygen evolution reaction (OER) and proposes a sulfurizing method to synthesize sulfur-doped NiCo-(oxy)hydroxysulfides (NCOSH) nanosheets as efficient electrocatalysts. The sulfur dopants enhance the oxidation activity and stability of high-valent transition metals, resulting in superior bifunctional activities and durability for oxygen electrocatalytic reactions. The NCOSH nanosheets also exhibit excellent performance as air cathodes in rechargeable solid state Zn-air batteries.

ADVANCED ENERGY MATERIALS (2022)

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Review Chemistry, Multidisciplinary

Transforming Damage into Benefit: Corrosion Engineering Enabled Electrocatalysts for Water Splitting

Xupo Liu et al.

Summary: It has been discovered that corrosion engineering is an emerging strategy for preparing electrocatalysts, with advantages such as simplicity, effectiveness, and low cost. By converting harmful corrosion processes into beneficial catalyst preparation, the goal of transforming damage into benefit can be achieved.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Tip-Enhanced Electric Field: A New Mechanism Promoting Mass Transfer in Oxygen Evolution Reactions

Peng Liu et al.

Summary: In this study, NiFe alloy nanocone arrays were used to enhance the oxygen evolution reaction (OER) rate and outperform state-of-the-art OER electrocatalysts. The high-curvature tips on the nanocones induce a local electric field that significantly increases the concentration of hydroxide ions near the active sites, promoting OER activity. This local field enhanced OER kinetics is suggested to be a generic effect applicable to other OER catalysts.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Schottky Heterojunction Nanosheet Array Achieving High-Current-Density Oxygen Evolution for Industrial Water Splitting Electrolyzers

Qunlei Wen et al.

Summary: Versatile catalyst system composed of dispersed NiFe hydroxide nanoparticles and ultrathin NiS nanosheets exhibits remarkable oxygen evolution reaction (OER) activity at high current density under industrial conditions. Theoretical calculations demonstrate the cooperative regulation of mass transport and electronic structure, leading to favorable OER kinetics and stable cell performance in water splitting electrolyzer.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Design of a Multilayered Oxygen-Evolution Electrode with High Catalytic Activity and Corrosion Resistance for Saline Water Splitting

Jihong Li et al.

Summary: This study reported the design of a multilayered oxygen-evolution electrode synthesized through direct thermal boronization to meet the requirements of seawater electrolysis. The electrode consists of an oxidized NiFeBx alloy layer, a NiFeBx alloy interlayer, and a NiFe alloy substrate, which are conductive to the generation and stabilization of the catalytic active phase gamma-(Ni,Fe)OOH.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Trimetallic Spinel NiCo2-xFexO4 Nanoboxes for Highly Efficient Electrocatalytic Oxygen Evolution

Yi Huang et al.

Summary: The study successfully designed and synthesized optimized porous Co-based trimetallic spinel oxide nanoboxes with superior electrocatalytic performance for the oxygen evolution reaction. The structural and compositional advantages enable the nanoboxes to exhibit excellent performance in alkaline electrolyte.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Unveiling the Impact of Fe Incorporation on Intrinsic Performance of Reconstructed Water Oxidation Electrocatalyst

N. Clament Sagaya Selvam et al.

Summary: The surface dynamics of precatalysts during the oxygen evolution reaction (OER), especially under high current density, can lead to inconsistent performance. By incorporating Fe into the reconstruction of precatalysts, the resulting heterointerface structures enriched with high valence active sites significantly enhance OER activity and long-term stability. Density functional theory calculations show that Fe-incorporated electrocatalysts have optimal binding energies and reduced overpotential compared to Fe-undoped ones.

ACS ENERGY LETTERS (2021)

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Article Chemistry, Physical

Valence oscillation and dynamic active sites in monolayer NiCo hydroxides for water oxidation

Jianxin Kang et al.

Summary: Monolayer materials offer an extra degree of freedom to modulate electronic structures and catalytic performances, promoting dynamic active site generation for the oxygen evolution reaction at lower potentials. Lattice doping with cobalt tunes the electronic structure and reduces overpotential, while in situ experiments reveal valence state oscillation in NiCo hydroxides as a fundamental mechanism for active site generation.

NATURE CATALYSIS (2021)

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Review Chemistry, Physical

Structural Variations of Metal Oxide-Based Electrocatalysts for Oxygen Evolution Reaction

Ruiqin Gao et al.

Summary: This review discusses the structural variations of metal oxide-based OER electrocatalysts, including the factors influencing structural stability and general approaches to regulate structural variation processes. The review also summarizes operando methods to monitor structural changes and identify the final active structure, while also presenting unresolved issues and challenges in understanding the mechanism of structural variations.

SMALL METHODS (2021)

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Article Chemistry, Multidisciplinary

Self-Reconstruction of Sulfate-Containing High Entropy Sulfide for Exceptionally High-Performance Oxygen Evolution Reaction Electrocatalyst

Thi Xuyen Nguyen et al.

Summary: The novel high entropy sulfide FeNiCoCrXS2 exhibits excellent oxygen evolution reaction (OER) activity with superior stability, showing great potential for practical catalytic applications. The presence of sulfate in the material significantly influences its catalytic activity, and the resulting metal (oxy)hydroxide is believed to be the true active center for OER.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Review Chemistry, Multidisciplinary

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

Zi-You Yu et al.

Summary: The hydrogen economy has emerged as a promising alternative to the current hydrocarbon economy, involving the use of renewable energy to split water into hydrogen and oxygen for further utilization as clean fuel. Among various water electrolysis technologies, alkaline water splitting has been commercialized for over 100 years and is considered the most mature and economic option. Advanced nonprecious metal electrocatalysts have shown potential for improving the efficiency and stability of alkaline water splitting processes, with a focus on catalyst synthesis and performance improvement.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Engineering Microdomains of Oxides in High-Entropy Alloy Electrodes toward Efficient Oxygen Evolution

Zheng-Jie Chen et al.

Summary: Oxygen micro-alloyed high-entropy alloys developed through metallurgy approach exhibit exceptional electrocatalytic performance, offering a technological-orientated strategy to integrated electrodes.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Synergetic Metal Defect and Surface Chemical Reconstruction into NiCo2S4/ZnS Heterojunction to Achieve Outstanding Oxygen Evolution Performance

Jing Sun et al.

Summary: Defect and interface engineering are effective strategies to improve the activity of metal sulfides, but the practical application is limited by low conductivity and volume fluctuation. By anchoring Zn-defective ZnS nanoparticles on the surface of NiCo2S4 nanosheets, the NiCo2S4/ZnS hybrids exhibit outstanding oxygen evolution performance with an ultra-low overpotential of 140 mV. The anchored ZnS nanoparticles inhibit volume expansion of NiCo2S4 nanosheets during cycling.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Iron-facilitated surface reconstruction to in-situ generate nickel-iron oxyhydroxide on self-supported FeNi alloy fiber paper for efficient oxygen evolution reaction

Gaowei Zhang et al.

Summary: A porous and self-supported FeNi-alloy fiber paper with excellent OER performance and remarkable stability has been successfully fabricated, demonstrating that Fe substitution in metallic nickel can enhance electrocatalytic activity. Partial Fe leaching on the alloy surface facilitates surface reconstruction, generating active FeNi-oxyhydroxides, while Fe atoms induce Ni-O bond lengthening within oxyhydroxides for promoting the decomposition of *OOH intermediate species into O-2. This study provides new insights into the mechanisms of Fe substitution for improving OER activity, accelerating the development of low-cost, efficient, and durable electrocatalysts.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Multidisciplinary Sciences

Engineering single-atomic ruthenium catalytic sites on defective nickel-iron layered double hydroxide for overall water splitting

Panlong Zhai et al.

Summary: Rational design of single atom catalyst is critical for efficient sustainable energy conversion. Single-atomic-site ruthenium stabilized on defective nickel-iron layered double hydroxide nanosheets achieve superior HER and OER performance in alkaline media.

NATURE COMMUNICATIONS (2021)

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Review Chemistry, Physical

Self-Supported Electrocatalysts for Practical Water Electrolysis

Hongyuan Yang et al.

Summary: Over the years, significant progress has been made in enhancing the efficiency of water splitting through the development of economic electrocatalysts with improved conductivity, active site accessibility, and intrinsic activity. However, the challenge remains to create earth-abundant catalysts that can meet the demands of practical water electrolysis. Self-supported electrocatalysts are considered the most suitable contenders for large-scale hydrogen generation due to their features like increased active species loading, rapid charge and mass transfer, strong affinity between catalytic components and substrates, easily controlled wettability, and enhanced bifunctional performance.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

Conductivity Modulation of 3D-Printed Shellular Electrodes through Embedding Nanocrystalline Intermetallics into Amorphous Matrix for Ultrahigh-Current Oxygen Evolution

Shuai Chang et al.

Summary: The development of a highly active and conductive Shellular electrode for efficient oxygen evolution reaction (OER) in large-scale hydrogen production through water electrolysis is achieved by embedding nanocrystalline Ni3Nb intermetallics. The designed structure has a large surface area and high porosity, achieving a record-high current density at a record-low overpotential with good durability, potentially opening the door for large-scale industrial water electrolysis.

ADVANCED ENERGY MATERIALS (2021)

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Article Materials Science, Multidisciplinary

Vertical-crystalline Fe-doped β-Ni oxyhydroxides for highly active and stable evolution reaction

Byeongyoon Kim et al.

Summary: Layered transition metal oxyhydroxides have attracted attention for their efficient energy conversion performance and material stability, with Fe-doped NiOOH showing record-high OER performance in alkaline media. A rational catalyst design, involving a vertical-crystalline beta-Fe/NiOOH layer on faceted Fe/Ni nanocrystals, has been proposed to improve OER performance significantly by exposing Ni4+ sites. Electrochemical OER tests demonstrated an overpotential of 210 mV at a current density of 10 mA cm(-2) GEO and stable operation for 5 days, highlighting the potential of this catalyst design for practical applications.

MATTER (2021)

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Review Chemistry, Multidisciplinary

Atomic heterointerface engineering overcomes the activity limitation of electrocatalysts and promises highly-efficient alkaline water splitting

Qiucheng Xu et al.

Summary: Alkaline water splitting for hydrogen production is a low-cost and scalable method that requires highly efficient electrocatalysts to decrease the barriers of hydrogen and oxygen evolution reactions. Atomic heterointerface engineering is a promising strategy to overcome the intrinsic activity limitation of electrocatalysts.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Applied

Self-supporting NiFe LDH-MoSx integrated electrode for highly efficient water splitting at the industrial electrolysis conditions

Han Zhang et al.

Summary: The self-supporting NiFe LDH-MoSx integrated electrode shows excellent performance for water oxidation under normal alkaline and simulated industrial electrolysis conditions, indicating its potential for large-scale industrial water electrolysis applications.

CHINESE JOURNAL OF CATALYSIS (2021)

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Article Materials Science, Multidisciplinary

Perspective on High-Rate Alkaline Water Splitting

Tianyi Kou et al.

Summary: Alkaline water splitting (AWS) is a sustainable technology utilizing economical materials as catalysts and avoiding the use of expensive membranes. Despite the existence of efficient catalysts, the efficiency of AWS at large current density is still limited.

ACS MATERIALS LETTERS (2021)

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Article Chemistry, Multidisciplinary

Will Any Crap We Put into Graphene Increase Its Electrocatalytic Effect?

Lu Wang et al.

ACS NANO (2020)

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Article Materials Science, Multidisciplinary

One-pot green synthesis of copper sulfide (I) thin films with p-type conductivity

Natalia S. Kozhevnikova et al.

MATERIALS CHEMISTRY AND PHYSICS (2020)

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Review Chemistry, Multidisciplinary

Active Site Engineering in Porous Electrocatalysts

Hui Chen et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Sulfur-Modified Oxygen Vacancies in Iron-Cobalt Oxide Nanosheets: Enabling Extremely High Activity of the Oxygen Evolution Reaction to Achieve the Industrial Water Splitting Benchmark

Linzhou Zhuang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Physical

High-valence metals improve oxygen evolution reaction performance by modulating 3dmetal oxidation cycle energetics

Bo Zhang et al.

NATURE CATALYSIS (2020)

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Article Chemistry, Multidisciplinary

Ultrafast room-temperature synthesis of porous S-doped Ni/Fe (oxy)hydroxide electrodes for oxygen evolution catalysis in seawater splitting

Luo Yu et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Exceptional performance of hierarchical Ni-Fe oxyhydroxide@NiFe alloy nanowire array electrocatalysts for large current density water splitting

Caiwu Liang et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

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Review Chemistry, Multidisciplinary

Application of In Situ Techniques for the Characterization of NiFe-Based Oxygen Evolution Reaction (OER) Electrocatalysts

Kaiyue Zhu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Editorial Material Energy & Fuels

Considerations for the scaling-up of water splitting catalysts

Jakob Kibsgaard et al.

NATURE ENERGY (2019)

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Article Electrochemistry

Raney Nickel 2.0: Development of a high-performance bifunctional electrocatalyst

William J. F. Gannon et al.

ELECTROCHIMICA ACTA (2019)

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Article Chemistry, Multidisciplinary

Dissolution-Induced Surface Roughening and Oxygen Evolution Electrocatalysis of Alkaline-Earth Iridates in Acid

Chang Woo Song et al.

CHEM (2019)

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High-performance oxygen evolution electrocatalysis by boronized metal sheets with self-functionalized surfaces

Feifan Guo et al.

ENERGY & ENVIRONMENTAL SCIENCE (2019)

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Article Chemistry, Multidisciplinary

Intramolecular electronic coupling in porous iron cobalt (oxy)phosphide nanoboxes enhances the electrocatalytic activity for oxygen evolution

Huabin Zhang et al.

ENERGY & ENVIRONMENTAL SCIENCE (2019)

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Review Chemistry, Multidisciplinary

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

Fang Song et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

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Article Multidisciplinary Sciences

Anion insertion enhanced electrodeposition of robust metal hydroxide/oxide electrodes for oxygen evolution

Zhenhua Yan et al.

NATURE COMMUNICATIONS (2018)

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Corrosion engineering towards efficient oxygen evolution electrodes with stable catalytic activity for over 6000 hours

Yipu Liu et al.

NATURE COMMUNICATIONS (2018)

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Highly Active Trimetallic NiFeCr Layered Double Hydroxide Electrocatalysts for Oxygen Evolution Reaction

Yang Yang et al.

ADVANCED ENERGY MATERIALS (2018)

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In Situ Generation of Bifunctional, Efficient Fe-Based Catalysts from Mackinawite Iron Sulfide for Water Splitting

Xiaoxin Zou et al.

CHEM (2018)

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Review Chemistry, Physical

Measurement Techniques for the Study of Thin Film Heterogeneous Water Oxidation Electrocatalysts

Michaela Burke Stevens et al.

CHEMISTRY OF MATERIALS (2017)

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Efficient electrocatalysis of overall water splitting by ultrasmall NixCo3-xS4 coupled Ni3S2 nanosheet arrays

Yuanyuan Wu et al.

NANO ENERGY (2017)

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In situ electrochemically converting Fe2O3-Ni(OH)2 to NiFe2O4-NiOOH: a highly efficient electrocatalyst towards water oxidation

Fang Zhang et al.

SCIENCE CHINA-MATERIALS (2017)

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Editorial Material Chemistry, Physical

Are Metal Chalcogenides, Nitrides, and Phosphides Oxygen Evolution Catalysts or Bifunctional Catalysts?

Song Jin

ACS ENERGY LETTERS (2017)

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A freestanding NiSx porous film as a binder-free electrode for Mg-ion batteries

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CHEMICAL COMMUNICATIONS (2017)

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Ultrafast Formation of Amorphous Bimetallic Hydroxide Films on 3D Conductive Sulfide Nanoarrays for Large-Current-Density Oxygen Evolution Electrocatalysis

Xu Zou et al.

ADVANCED MATERIALS (2017)

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Homogeneously dispersed multimetal oxygen-evolving catalysts

Bo Zhang et al.

SCIENCE (2016)

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The Role of Anions in Metal Chalcogenide Oxygen Evolution Catalysis: Electrodeposited Thin Films of Nickel Sulfide as Pre-catalysts

Oluwaniyi Mabayoje et al.

ACS ENERGY LETTERS (2016)

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Noble metal-free hydrogen evolution catalysts for water splitting

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CHEMICAL SOCIETY REVIEWS (2015)

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Metallic Nickel Nitride Nanosheets Realizing Enhanced Electrochemical Water Oxidation

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JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Benchmarking Hydrogen Evolving Reaction and Oxygen Evolving Reaction Electrocatalysts for Solar Water Splitting Devices

Charles C. L. McCrory et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Cobalt-Iron (Oxy)hydroxide Oxygen Evolution Electrocatalysts: The Role of Structure and Composition on Activity, Stability, and Mechanism

Michaela S. Burke et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Nickel-Iron Oxyhydroxide Oxygen-Evolution Electrocatalysts: The Role of Intentional and Incidental Iron Incorporation

Lena Trotochaud et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

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Room temperature, fast fabrication of square meter-sized oxygen evolution electrode toward industrial alkaline electrolyzer

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