4.8 Article

Dynamics and control of active sites in hierarchically nanostructured cobalt phosphide/chalcogenide-based electrocatalysts for water splitting

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Phase-Junction Electrocatalysts towards Enhanced Hydrogen Evolution Reaction in Alkaline Media

Qiang Fu et al.

Summary: The study demonstrates that the nickel diphosphide phase junction is an effective electrocatalyst for hydrogen production in alkaline media, significantly reducing overpotential and improving efficiency. This enhancement is attributed to strong water dissociation ability and electron rearrangement around the phase junction, leading to improved catalytic activity.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Spectroscopic and Electrokinetic Evidence for a Bifunctional Mechanism of the Oxygen Evolution Reaction**

Lichen Bai et al.

Summary: The study experimentally validated two different mechanisms for oxygen evolution reaction catalysts: one is a bifunctional mechanism, and the other is a conventional four-step proton-coupled electron transfer mechanism.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Review Chemistry, Multidisciplinary

In Situ/Operando Electrocatalyst Characterization by X-ray Absorption Spectroscopy

Janis Timoshenko et al.

Summary: X-ray absorption spectroscopy (XAS) is a crucial method for investigating the structure and composition of heterogeneous catalysts, revealing the nature of active sites and establishing links between structural motifs, local electronic structure, and catalytic properties. Recent advancements in instrumentation and data analysis approaches for deciphering X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectra have been discussed, with emphasis on applications in the field of heterogeneous catalysis, particularly in electrocatalysis.

CHEMICAL REVIEWS (2021)

Article Chemistry, Multidisciplinary

Anodic Oxidation Enabled Cation Leaching for Promoting Surface Reconstruction in Water Oxidation

Yan Duan et al.

Summary: A rational design for oxygen evolution reaction (OER) catalysts is important for water electrolysis efficiency. This study demonstrates controlled anodic leaching of Cr in CoCr2O4 material to transform inactive spinel CoCr2O4 into a highly active catalyst, showcasing the significance of controlling anodic potential in modifying electrocatalyst surface chemistry.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Delicate Control on the Shell Structure of Hollow Spheres Enables Tunable Mass Transport in Water Splitting

Ping Hou et al.

Summary: This paper presents a novel method to regulate the shell structures of hollow multishell structures, transforming the shells from solid to bubble-like and replicating them with narrow spacing through a simple phosphorization process. The fabricated CoP HoMSs with closely duplicated shells exhibit superior electrocatalytic performance in the hydrogen and oxygen evolution reaction, benefitting from the unbalanced Laplace pressure for increased gas release and enhanced capillary force for accelerated liquid transfer.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Visualizing the Conversion of Metal-Organic Framework Nanoparticles into Hollow Layered Double Hydroxide Nanocages

Wenhui Wang et al.

Summary: The study reveals the process of MOF nanoparticles converting into LDH nanostructures using liquid-phase transmission electron microscopy. The findings show that maintaining comparable etching and growth rates is crucial for forming hollow nanostructures with the shape of underlying MOF NP template.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Chemistry, Multidisciplinary

Constructing Atomic Heterometallic Sites in Ultrathin Nickel-Incorporated Cobalt Phosphide Nanosheets via a Boron-Assisted Strategy for Highly Efficient Water Splitting

Yufei Zhao et al.

Summary: This study fabricates ultrathin nickel-incorporated cobalt phosphide porous nano-sheets using a boron-assisted method, presenting a novel atomic heterometallic site for alkaline hydrogen evolution reaction and oxygen evolution reaction. The optimized material shows low overpotentials for both reactions, indicating a direct influence of center Ni atoms on adjacent Co/P atoms. These findings provide fundamental insights into the correlation between atomic structures and catalytic activity for water splitting.

NANO LETTERS (2021)

Article Chemistry, Physical

Elevating the d-Band Center of Six-Coordinated Octahedrons in Co9S8 through Fe-Incorporated Topochemical Deintercalation

Zongpeng Wang et al.

Summary: By redesigning the six-coordinated octahedrons in Co9S8 using an Fe-incorporated method, the overall d-band center is regulated to achieve optimized adsorption and superior OER activity. This work sheds light on the design of OER catalysts through polyhedron engineering using topochemical deintercalation, resulting in a 95 mV reduction in overpotential at 10 mA cm(-2).

ADVANCED ENERGY MATERIALS (2021)

Article Chemistry, Physical

Formation of FeOOH Nanosheets Induces Substitutional Doping of CeO2-x with High-Valence Ni for Efficient Water Oxidation

Jun Yu et al.

Summary: This study reports a one-step synthesis of high-valence nickel-doped CeO2-x covered with FeOOH nanosheets in the presence of Ni2+/Fe3+, leading to efficient oxygen evolution reaction (OER) electrocatalysis. The etching effect on ceria by H+ species from the hydrolysis of Fe3+ was revealed through a series of experiments, promoting the formation of high-valence Ni3+/Ni4+.

ADVANCED ENERGY MATERIALS (2021)

Article Chemistry, Multidisciplinary

Interface Engineering of Co-LDH@MOF Heterojunction in Highly Stable and Efficient Oxygen Evolution Reaction

Zhenxing Li et al.

Summary: The electrochemical splitting of water into hydrogen and oxygen is a promising approach for generating clean and sustainable energy. Interface engineering heterojunctions between ZIF-67 and LDH have been designed to enhance the catalytic activity of the OER and the stability of Co-LDH, resulting in superior OER activity with low overpotential and long-term electrochemical stability.

ADVANCED SCIENCE (2021)

Article Chemistry, Physical

Redirecting dynamic surface restructuring of a layered transition metal oxide catalyst for superior water oxidation

Jian Wang et al.

Summary: A new method of modulating catalyst surface structure was proposed, showing significant performance and stability in the oxygen evolution reaction.

NATURE CATALYSIS (2021)

Article Chemistry, Multidisciplinary

In Situ Reconstruction of V-Doped Ni2P Pre-Catalysts with Tunable Electronic Structures for Water Oxidation

Tingwen Zhao et al.

Summary: This study reports on the in-situ structural reconstruction of V-doped Ni2P pre-catalyst to form highly active NiV oxyhydroxides for oxygen evolution reaction (OER), showing enhanced kinetics for the adsorption of *OH and deprotonation of *OOH intermediates. Raman spectroscopy and X-ray absorption spectroscopy demonstrate that the increased content of the active beta-NiOOH phase contributes to OER activity enhancement. Density functional theory calculations verify that the V dopants facilitate the generation of *O intermediates during OER.

ADVANCED FUNCTIONAL MATERIALS (2021)

Article Chemistry, Multidisciplinary

In Situ Anchoring Polymetallic Phosphide Nanoparticles within Porous Prussian Blue Analogue Nanocages for Boosting Oxygen Evolution Catalysis

Guangxun Zhang et al.

Summary: By designing NiCoFe-P-NP@ NiCoFe-PBA nanocages with porous surfaces and synergistic effects between pMP-NPs and PBA cyano groups, significantly enhanced catalytic activity for OER was achieved. This study not only offers a strategy for in situ anchoring pMP-NPs on PBA nanocages but also provides a new insight into optimizing Gibbs free energy of OER by regulating electron transfer from metallic phosphides to PBA substrate.

NANO LETTERS (2021)

Article Multidisciplinary Sciences

Correlative operando microscopy of oxygen evolution electrocatalysts

J. Tyler Mefford et al.

Summary: Transition metal (oxy)hydroxides are promising electrocatalysts for the oxygen evolution reaction, with their properties evolving dynamically and heterogeneously with applied voltage. By studying single-crystalline beta-Co(OH)(2) platelet particles, researchers have found that the particles change structure and composition from inactive to active states as the voltage increases, ultimately linking bulk ion-insertion with surface catalytic activity. This study demonstrates the importance of understanding the nanoscale structure of electrocatalysts in predicting and optimizing their oxygen evolution activity.

NATURE (2021)

Review Chemistry, Multidisciplinary

Perfecting electrocatalysts via imperfections: towards the large-scale deployment of water electrolysis technology

Shilong Jiao et al.

Summary: Hydrogen is increasingly seen as a key energy carrier in decarbonization efforts and strategies for clean energy economies. Improving the efficiency of electrocatalytic water splitting is crucial for reducing energy consumption and increasing conversion efficiency. The incorporation of multidimensional imperfections has shown promise in modulating electron distribution and speeding up electrocatalysis kinetics.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Review Chemistry, Multidisciplinary

Molecular and heterogeneous water oxidation catalysts: recent progress and joint perspectives

J. Li et al.

Summary: The text emphasizes the importance of reliable water oxidation catalysts (WOCs) for artificial photosynthesis on a large scale. It discusses the evolution of WOC research into molecular and heterogeneous branches, as well as the growing need for knowledge transfer between these two fields. The review highlights recent developments in both molecular and heterogeneous WOCs, focusing on design principles, mechanistic insights, and the benefits of combining the best of both catalyst types.

CHEMICAL SOCIETY REVIEWS (2021)

Article Chemistry, Multidisciplinary

Local spin-state tuning of cobalt-iron selenide nanoframes for the boosted oxygen evolution

Jun-Ye Zhang et al.

Summary: The study introduces cobalt-iron selenide nanoframes as a highly efficient electrocatalyst for water oxidation, achieving a low overpotential and outperforming most cobalt-based catalysts and even benchmarked commercial ruthenium oxides. Iron doping regulates the local spin state of cobalt species, accelerating charge transfer and formation of oxygenated intermediates, ultimately leading to enhanced oxygen evolution efficiency. This work may pioneer a promising approach in energy conversion technologies by tuning the local electronic structure to improve electrocatalysis activities.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Article Chemistry, Multidisciplinary

Operando X-ray spectroscopy visualizing the chameleon-like structural reconstruction on an oxygen evolution electrocatalyst

Dengfeng Cao et al.

Summary: This study presents a cobalt sulfide catalyst with chameleon-like structural self-optimization during the oxygen evolution reaction under neutral and alkaline conditions, activating distinct catalytic sites and achieving high catalytic activity. The findings shed light on the essence of the structural self-optimization process of catalysts and provide new insights for future OER relevant studies and chemistry and catalysis fields.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Review Chemistry, Multidisciplinary

Synergistically Interactive Pyridinic-N-MoP Sites: Identified Active Centers for Enhanced Hydrogen Evolution in Alkaline Solution

Di Zhao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Multidisciplinary Sciences

In-situ structure and catalytic mechanism of NiFe and CoFe layered double hydroxides during oxygen evolution

Fabio Dionigi et al.

NATURE COMMUNICATIONS (2020)

Article Multidisciplinary Sciences

Approaching the activity limit of CoSe2 for oxygen evolution via Fe doping and Co vacancy

Yuhai Dou et al.

NATURE COMMUNICATIONS (2020)

Article Chemistry, Physical

In Situ/Operando Studies for Designing Next-Generation Electrocatalysts

Yanping Zhu et al.

ACS ENERGY LETTERS (2020)

Article Chemistry, Multidisciplinary

Unveiling the Promotion of Surface-Adsorbed Chalcogenate on the Electrocatalytic Oxygen Evolution Reaction

Yanmei Shi et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Multidisciplinary

Operando Identification of the Dynamic Behavior of Oxygen Vacancy-Rich Co3O4 for Oxygen Evolution Reaction

Zhaohui Xiao et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

Article Multidisciplinary Sciences

Lattice oxygen activation enabled by high-valence metal sites for enhanced water oxidation

Ning Zhang et al.

NATURE COMMUNICATIONS (2020)

Article Multidisciplinary Sciences

Achieving delafossite analog by in situ electrochemical self-reconstruction as an oxygen-evolving catalyst

Juzhe Liu et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

Editorial Material Chemistry, Physical

Faster hydrogen production in alkaline media

Michael John Craig et al.

NATURE CATALYSIS (2020)

Review Chemistry, Multidisciplinary

Recent advances in nanostructured transition metal phosphides: synthesis and energy-related applications

Yanmei Shi et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

Article Chemistry, Multidisciplinary

Boosting alkaline hydrogen evolution: the dominating role of interior modification in surface electrocatalysis

Zhao Li et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

Article Materials Science, Multidisciplinary

Fluorine-Induced Dual Defects in Cobalt Phosphide Nanosheets Enhance Hydrogen Evolution Reaction Activity

Kun Xu et al.

ACS MATERIALS LETTERS (2020)

Review Chemistry, Multidisciplinary

A review on fundamentals for designing oxygen evolution electrocatalysts

Jiajia Song et al.

CHEMICAL SOCIETY REVIEWS (2020)

Article Chemistry, Multidisciplinary

Fabrication of practical catalytic electrodes using insulating and eco-friendly substrates for overall water splitting

Weiju Hao et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

Article Chemistry, Multidisciplinary

Functional Role of Fe-Doping in Co-Based Perovskite Oxide Catalysts for Oxygen Evolution Reaction

Bae-Jung Kim et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

A Cobalt-Iron Double-Atom Catalyst for the Oxygen Evolution Reaction

Lichen Bai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

Identification of Key Reversible Intermediates in Self-Reconstructed Nickel-Based Hybrid Electrocatalysts for Oxygen Evolution

Jianwen Huang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Chemistry, Multidisciplinary

In Situ Grown Pristine Cobalt Sulfide as Bifunctional Photocatalyst for Hydrogen and Oxygen Evolution

Min Zheng et al.

ADVANCED FUNCTIONAL MATERIALS (2017)

Article Chemistry, Multidisciplinary

Hollow Cobalt-Based Bimetallic Sulfide Polyhedra for Efficient All-pH-Value Electrochemical and Photocatalytic Hydrogen Evolution

Zhen-Feng Huang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

Article Chemistry, Multidisciplinary

Water oxidation by amorphous cobalt-based oxides: in situ tracking of redox transitions and mode of catalysis

Marcel Risch et al.

ENERGY & ENVIRONMENTAL SCIENCE (2015)

Article Chemistry, Multidisciplinary

EPR Evidence for Co(IV) Species Produced During Water Oxidation at Neutral pH

J. Gregory McAlpin et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2010)