Boosting the hydrogen evolution of layered double hydroxide by optimizing the electronic structure and accelerating the water dissociation kinetics

Article Chemistry, Multidisciplinary

Vanadium-Incorporated CoP2 with Lattice Expansion for Highly Efficient Acidic Overall Water Splitting

Yu Wang et al.

Summary: This study successfully fabricated a novel V-CoP2 porous nanowire electrocatalyst which showed excellent acidic overall water splitting activity and stability.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Chemistry, Physical

In-situ construction of sequential heterostructured CoS/CdS/CuS for building electron-welcome zone to enhance solar-to-hydrogen conversion

Yilei Li et al.

Summary: This study prepared a sequential heterojunction of CoS/CdS/CuS via sequential cation exchange strategy, forming an electron-welcome zone to optimize electron transport channels and enhance photocatalytic hydrogen production. The results confirmed the significance of this sequential structure for solar energy conversion.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

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Article Engineering, Environmental

Incorporating metal Co into CoMoO4/Co2Mo3O8 heterointerfaces with rich-oxygen vacancies for efficient hydrogen evolution catalysis

Ling-Jie Xie et al.

Summary: A bimetallic oxide catalyst with rich-oxygen vacancies is designed for hydrogen evolution reaction in alkaline media, showing superior electrocatalytic activity with low overpotential, small Tafel slope, and excellent durability due to synergistic effects of metallic Co, CoMoO4/Co2Mo3O8 interfaces, and rich-oxygen vacancies.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Multidisciplinary

Metal-Organic Frameworks with Assembled Bifunctional Microreactor for Charge Modulation and Strain Generation toward Enhanced Oxygen Electrocatalysis

Fan He et al.

Summary: A bifunctional microreactor catalyst (CoBDC FcCA) composed of two species of Co active sites and ligand FcCA has been developed for efficient OER performance and accelerated reaction kinetics, enabling solar-driven oxygen production from water splitting.

ACS NANO (2022)

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Article Electrochemistry

3D interweaving MXene-graphene network-confined Ni-Fe layered double hydroxide nanosheets for enhanced hydrogen evolution

Binfeng Shen et al.

Summary: A newly-designed 3D structure with favorable textural features has been synthesized through a bottom-up approach, showing superior hydrogen evolution reaction (HER) performance in alkaline solution. This study provides new insights for the research and design of efficient and inexpensive electrocatalysts.

ELECTROCHIMICA ACTA (2022)

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Article Chemistry, Physical

Mo-doping-assisted electrochemical transformation to generate CoFe LDH as the highly efficient electrocatalyst for overall water splitting

Gaiyun Zhao et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Physical

Trimetallic CoNiFe-layered double hydroxides: Electronic coupling effect and oxygen vacancy for boosting water splitting

Jing Yao et al.

Summary: This study presents the fabrication of a trimetallic CoNiFe-layered double hydroxide (LDH) catalyst with optimized intrinsic activity. The catalyst shows low overpotentials for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), demonstrating superior performance compared to other LDH catalysts. The development of this trimetallic LDH catalyst holds great potential in hydrogen production.

JOURNAL OF POWER SOURCES (2022)

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Article Chemistry, Physical

Self-assembled Pt-CoFe layered double hydroxides for efficient alkaline water/seawater splitting by spontaneous redox synthesis

Jin Wu et al.

Summary: This study presents a novel and simple synthesis strategy to prepare a self-supported high-performance water/seawater splitting bifunctional electro-catalyst. The catalyst exhibits excellent catalytic activity and enhanced chemical stability, which is highly relevant for commercial applications.

JOURNAL OF POWER SOURCES (2022)

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Article Chemistry, Multidisciplinary

Crystal Facet-Manipulated 2D Pt Nanodendrites to Achieve an Intimate Heterointerface for Hydrogen Evolution Reactions

Yu-Rim Hong et al.

Summary: This study addresses the inefficient interfacial contact effect in Pt-catalyzed alkaline hydrogen evolution reaction (HER) by producing atomically flat two-dimensional Pt nanodendrites (2D-PtNDs) and realizing a maximized and firmly bound lateral heterointerface with NiFe-layered double hydroxide (LDH). This work demonstrates the importance of shape and facet of Pt in creating heterointerfaces that provide catalytic synergy for efficient hydrogen production.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Article Chemistry, Multidisciplinary

Metal-Organic Framework-Derived Hollow CoSx Nanoarray Coupled with NiFe Layered Double Hydroxides as Efficient Bifunctional Electrocatalyst for Overall Water Splitting

Yun Jae Lee et al.

Summary: In this study, a bifunctional electrocatalyst composed of hollow CoSx and Ni-Fe based layered double hydroxide (NiFe LDH) nanosheets was developed for efficient overall water splitting. The catalyst exhibits excellent HER and OER activities with low overpotentials and good durability.

SMALL (2022)

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Article Chemistry, Multidisciplinary

Highly active ruthenium sites stabilized by modulating electron-feeding for sustainable acidic oxygen-evolution electrocatalysis

Kexin Wang et al.

Summary: Designing acid-stable oxygen evolution reaction (OER) electrocatalysts with low noble-metal content is crucial for green hydrogen generation. In this study, a rutile-structured ruthenium-manganese solid solution oxide with oxygen vacancies (Mn0.73Ru0.27O2-delta) was developed using an electron-feeding modulation strategy. The catalyst exhibited optimal electronic structure and enhanced electrical conductivity, leading to low overpotential and improved OER kinetics. The incorporation of Mn components and O vacancies modulated the adsorption and desorption energy barriers, improving the overall OER kinetics.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Engineering, Environmental

New insights into interface charge-transfer mechanism of copper-iron layered double hydroxide cathodic electrocatalyst in alkaline electrolysis

Mallikarjun Bhavanari et al.

Summary: This research demonstrates the modulation of the electronic structure of CuFe LDH by manipulating the Cu/Fe ratio and nanostructure, to improve the catalytic performance of single layer and cost-effective transition metal LDHs in alkaline electrolysis for hydrogen evolution reaction. By optimizing the adsorption of protons and hydroxide ions, high current density and stability are achieved, while reducing the overpotential.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

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Article Chemistry, Physical

Improved hydrogen evolution activity of layered double hydroxide by optimizing the electronic structure

Haopeng Feng et al.

Summary: This study proposes a design strategy to improve the HER activity of LDHs by P doping and deposition of metal nanodots, achieving an increase of one order of magnitude. The obtained electrocatalyst CPFC-LDH shows excellent activity in alkaline electrolyte, reaching a current density of 10 mA/cm(2) with only 63 mV overpotential for HER.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Chemistry, Physical

Chemical transformation approach for high-performance ternary NiFeCo metal compound-based water splitting electrodes

Jooyoung Lee et al.

Summary: Developing high-efficiency and cost-efficient electrodes for hydrogen and oxygen evolution reactions is a major challenge in water electrolysis technology. A chemical transformation route was developed to produce high-performance OER and HER electrodes, which outperformed most other catalysts reported to date. An alkaline water electrolyzer based on these electrodes achieved a current density of 10 mA/cm(2) at an only 1.47 V-cell, while an anion exchange membrane water electrolyzer reached a current density of 500 mA/cm(2) at an only 1.75 V-cell.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Engineering, Environmental

In-situ formation of unsaturated defect sites on converted CoNi alloy/Co-Ni LDH to activate MoS2 nanosheets for pH-universal hydrogen evolution reaction

Jianing Dong et al.

Summary: This study proposed an efficient non-Pt based hybrid electrocatalyst showing excellent hydrogen evolution reaction (HER) activity in different pH ranges. The research found that the edges of CN/CNL can promote water dissociation to generate H protons and facilitate the release of H-2 on CN and MoS2.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Multidisciplinary Sciences

In-situ spectroscopic observation of dynamic-coupling oxygen on atomically dispersed iridium electrocatalyst for acidic water oxidation

Hui Su et al.

Summary: Uncovering the dynamics of active sites in working conditions is crucial to improve the activity and stability of oxygen evolution reaction electrocatalysts. In this study, dynamic-coupling oxygen on atomically dispersed iridium sites was identified during the oxygen evolution reaction, leading to enhanced activity and resistance to over-oxidation and dissolution of the active sites.

NATURE COMMUNICATIONS (2021)

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Article Engineering, Environmental

In-situ transformation obtained defect-rich porous hollow CuO@CoZn-LDH nanoarrays as self-supported electrode for highly efficient overall water splitting

Leilei Yin et al.

Summary: A novel strategy was proposed to fabricate dual-metal zeolitic imidazolate framework (CoZn-ZIF) nanocrystals on Cu(OH)(2) nanowires, leading to the formation of highly ordered CuO@CoZn-LDH nanoarrays with defect-rich porous surface for efficient water splitting. The catalyst showed excellent activity with low overpotentials for oxygen and hydrogen evolution reactions in alkaline media, and demonstrated a low cell voltage for overall water splitting, comparable to commercial catalysts. This work provides a new perspective for designing and fabricating advanced multifunctional electrocatalysts for electrochemical energy devices.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Chemistry, Physical

Synergistic coupling of CoFe-layered double hydroxide nanosheet arrays with reduced graphene oxide modified Ni foam for highly efficient oxygen evolution reaction and hydrogen evolution reaction

Jiawei Guo et al.

Summary: CoFe-LDH nanosheet arrays with excellent electrocatalytic performance were synthesized via citric acid-assisted aqueous phase coprecipitation on rGO-modified Ni foam, showing promising applications for oxygen and hydrogen evolution reactions, as well as overall water splitting.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Ni3S2/Cu-NiCo LDH heterostructure nanosheet arrays on Ni foam for electrocatalytic overall water splitting

Lina Jia et al.

Summary: This study reports a novel 3D Ni3S2/Cu-NiCo LDH heterostructure nanosheet arrays as a promising bifunctional electrocatalyst for the OER and HER. The design enhances activity through introducing copper ions and metallic Ni3S2 to tune the electronic structure, accelerate electrolyte diffusion, and promote gas bubble release, resulting in superior overall water splitting ability.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary

Deciphering the alternating synergy between interlayer Pt single-atom and NiFe layered double hydroxide for overall water splitting

Wei Chen et al.

Summary: This study presents a novel approach to anchor Pt single-atoms into layered double hydroxide, deciphering the synergy between Pt single-atoms and Ni3Fe LDH support during water splitting. Operando electrochemical impedance spectroscopy is used to distinguish interface charge transport and reactions during the hydrogen and oxygen evolution processes, unveiling the mechanisms of Pt single-atoms and LDH support in catalytic reactions.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

Hole-rich CoP nanosheets with an optimized d-band center for enhancing pH-universal hydrogen evolution electrocatalysis

Shuo Geng et al.

Summary: Tailoring the d-band center and introducing holes can significantly enhance the hydrogen evolution reaction (HER) activity of CoP nanosheets in both acidic and alkaline media. This strategy not only improves the HER performance of electrocatalysts but also demonstrates excellent stability.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Multidisciplinary

In situ identification of the electrocatalytic water oxidation behavior of a nickel-based metal-organic framework nanoarray

Fanpeng Cheng et al.

Summary: The Ce-NiBDC/OG exhibited a low overpotential for the OER, with in situ spectroscopy and operando microscopy revealing the phase transformation behavior to Ce-doped NiOOH as the active site. Ce species doping in NiOOH was found to significantly enhance *OH adsorption and reduce the energy barriers for the rate-determining step (*OH -> *O) in the Ce-NiBDC/OG-derived catalyst.

MATERIALS HORIZONS (2021)

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Article Nanoscience & Nanotechnology

CuCo-Layered Double Hydroxide Nanosheet-Based Polyhedrons for Flexible Supercapacitor Cells

Lakshya Kumar et al.

Summary: A flexible high-performance supercapacitor cell using nanostructured CuCo-layered double hydroxide (LDH) as electrode material is reported for the first time, showing specific capacity, capacitance, cell voltage, energy density, and power density values. The flexible cell offers long-term stability and Coulombic efficiency, while providing valuable concepts for understanding its exceptional charge storage characteristics.

ACS APPLIED NANO MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Kinetic-Oriented Construction of MoS2 Synergistic Interface to Boost pH-Universal Hydrogen Evolution

Jue Hu et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Physical

Boosting alkaline hydrogen evolution and Zn-H2O cell induced by interfacial electron transfer

Fanpeng Cheng et al.

NANO ENERGY (2020)

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Article Chemistry, Multidisciplinary

High-Performance Metal-Free Nanosheets Array Electrocatalyst for Oxygen Evolution Reaction in Acid

Chaojun Lei et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Conversion of Intercalated MoO3to Multi-Heteroatoms-Doped MoS2with High Hydrogen Evolution Activity

Weiwei Yang et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Metal Atom-Doped Co3O4Hierarchical Nanoplates for Electrocatalytic Oxygen Evolution

Song Lin Zhang et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Acceptor-Doping Accelerated Charge Separation in Cu2O Photocathode for Photoelectrochemical Water Splitting: Theoretical and Experimental Studies

Mengmeng Zhang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Physical

Tuning d-band center of tungsten carbide via Mo doping for efficient hydrogen evolution and Zn-H2O cell over a wide pH range

Lin Wang et al.

NANO ENERGY (2020)

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Article Multidisciplinary Sciences

Boosting hydrogen evolution on MoS2 via co-confining selenium in surface and cobalt in inner layer

Zhilong Zheng et al.

NATURE COMMUNICATIONS (2020)

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Article Chemistry, Physical

Synthesis and growth mechanism of bamboo like N-doped CNT/Graphene nanostructure incorporated with hybrid metal nanoparticles for overall water splitting

Anchu Ashok et al.

CARBON (2020)

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Review Chemistry, Physical

Designing 3d dual transition metal electrocatalysts for oxygen evolution reaction in alkaline electrolyte: Beyond oxides

Kexin Wang et al.

NANO ENERGY (2020)

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Article Chemistry, Multidisciplinary

Topotactically Transformed Polygonal Mesopores on Ternary Layered Double Hydroxides Exposing Under-Coordinated Metal Centers for Accelerated Water Dissociation

Hao Sun et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Physical

Atomic Ir-doped NiCo layered double hydroxide as a bifunctional electrocatalyst for highly efficient and durable water splitting

Ronglei Fan et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

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Article Chemistry, Multidisciplinary

Efficient alkaline hydrogen evolution on atomically dispersed Ni-Nx Species anchored porous carbon with embedded Ni nanoparticles by accelerating water dissociation kinetics

Chaojun Lei et al.

ENERGY & ENVIRONMENTAL SCIENCE (2019)

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Article Multidisciplinary Sciences

Atomically dispersed nickel-nitrogen-sulfur species anchored on porous carbon nanosheets for efficient water oxidation

Yang Hou et al.

NATURE COMMUNICATIONS (2019)

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Article Nanoscience & Nanotechnology

Strongly Coupled 3D N-Doped MoO2/Ni3S2 Hybrid for High Current Density Hydrogen Evolution Electrocatalysis and Biomass Upgrading

Lin Wang et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

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Article Multidisciplinary Sciences

Anomalous hydrogen evolution behavior in high-pH environment induced by locally generated hydronium ions

Xuesi Wang et al.

NATURE COMMUNICATIONS (2019)

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Article Chemistry, Applied

Novel SiO2 nanoparticle-decorated BiOCl nanosheets exhibiting high photocatalytic performances for the removal of organic pollutants

Changlin Yu et al.

CHINESE JOURNAL OF CATALYSIS (2019)

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Article Chemistry, Multidisciplinary

A ternary cobalt-molybdenum-vanadium layered double hydroxide nanosheet array as an efficient bifunctional electrocatalyst for overall water splitting

Jian Bao et al.

CHEMICAL COMMUNICATIONS (2019)

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Article Chemistry, Multidisciplinary

Lithiophilic Cu-CuO-Ni Hybrid Structure: Advanced Current Collectors Toward Stable Lithium Metal Anodes

Shuilin Wu et al.

ADVANCED MATERIALS (2018)

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Article Chemistry, Physical

CoFe Layered Double Hydroxide Supported on Graphitic Carbon Nitrides: An Efficient and Durable Bifunctional Electrocatalyst for Oxygen Evolution and Hydrogen Evolution Reactions

Tanmay Bhowmik et al.

ACS APPLIED ENERGY MATERIALS (2018)

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Review Multidisciplinary Sciences

Combining theory and experiment in electrocatalysis: Insights into materials design

Zhi Wei Seh et al.

SCIENCE (2017)

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Article Chemistry, Multidisciplinary

Ternary Porous Cobalt Phosphoselenide Nanosheets: An Efficient Electrocatalyst for Electrocatalytic and Photoelectrochemical Water Splitting

Yang Hou et al.

ADVANCED MATERIALS (2017)

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Article Nanoscience & Nanotechnology

Defect-Rich Ultrathin Cobalt-Iron Layered Double Hydroxide for Electrochemical Overall Water Splitting

Peng Fei Liu et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

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Article Electrochemistry

Hydrogen Interaction (Electrosorption and Evolution) Characteristics of Pd and Pd3Co Alloy Nanoparticles: An In-situ Investigation with Electrochemical Impedance Spectroscopy

Ramesh Kumar Singh et al.

ELECTROCHIMICA ACTA (2016)

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Article Chemistry, Physical

Mixed oxides derived from Cu-Co layered double hydroxide nanorods: Preparation, characterization and their catalytic activities

Hongbo Liu et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2010)

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Boosting the hydrogen evolution of layered double hydroxide by optimizing the electronic structure and accelerating the water dissociation kinetics

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