Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Atomically Dispersed Silver Atoms Embedded in NiCo Layer Double Hydroxide Boost Oxygen Evolution Reaction

Journal Article · · Small
 [1];  [2];  [1];  [1];  [1];  [3];  [1];  [1];  [2]
  1. Key Laboratory of Special Functional Materials for Ecological Environment and Information (Ministry of Education) Hebei University of Technology Tianjin 300130 China
  2. Department of Physics and Astronomy University of California Irvine CA 92697 USA
  3. State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering Hainan University Haikou 570228 China

Abstract

Bimetallic layered double hydroxides (LDHs) are promising catalysts for anodic oxygen evolution reaction (OER) in alkaline media. Despite good stability, NiCo LDH displays an unsatisfactory OER activity relative to the most robust NiFe LDH and CoFe LDH. Herein, a novel NiCo LDH electrocatalyst modified with single‐atom silver grown on carbon cloth (AgSA‐NiCo LDH/CC) that exhibits exceptional OER activity and stability in 1.0 mKOH is reported. The AgSA‐NiCo LDH/CC catalyst only requires a low overpotential of 192 mV to reach a current density of 10 mA cm−2, obviously boosting the OER activity of NiCo LDH/CC (410 mV@10 mA cm−2). Inspiringly, AgSA‐NiCo LDH/CC can maintain its high activity for up to 500 h at a large current density of 100 mA cm−2, exceeding most single‐atom OER catalysts. In situ Raman spectroscopy studies uncover that the in situ formed NiCoOOH during OER is the real active species. Hard X‐ray absorption spectrum (XAS) and density functional theory (DFT) calculations validate that single‐atom Ag occupying Ni site increases the chemical valence of Ni elements, and then weakens the adsorption of oxygen‐contained intermediates on Ni sites, fundamentally accounting for the enhanced OER performance.

Research Organization:
Univ. of California, Irvine, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0012704
OSTI ID:
2425523
Journal Information:
Small, Journal Name: Small Journal Issue: 34 Vol. 19; ISSN 1613-6810
Publisher:
Wiley
Country of Publication:
United States
Language:
English

References (59)

Precise anionic regulation of NiFe hydroxysulfide assisted by electrochemical reactions for efficient electrocatalysis journal January 2020
A single-atom library for guided monometallic and concentration-complex multimetallic designs journal May 2022
Interfacial Electronic Structure Modulation of NiTe Nanoarrays with NiS Nanodots Facilitates Electrocatalytic Oxygen Evolution journal April 2019
Oxygen evolution reaction over catalytic single-site Co in a well-defined brookite TiO2 nanorod surface journal December 2020
Construction dual-regulated NiCo2S4 @Mo-doped CoFe-LDH for oxygen evolution reaction at large current density journal December 2022
Ir–O–V Catalytic Group in Ir-Doped NiV(OH) 2 for Overall Water Splitting journal July 2019
Hierarchical 3D Architectured Ag Nanowires Shelled with NiMn-Layered Double Hydroxide as an Efficient Bifunctional Oxygen Electrocatalyst journal January 2020
Phase reconfiguration of multivalent nickel sulfides in hydrogen evolution journal January 2022
In-situ structure and catalytic mechanism of NiFe and CoFe layered double hydroxides during oxygen evolution journal May 2020
Engineering Bimetallic NiFe‐Based Hydroxides/Selenides Heterostructure Nanosheet Arrays for Highly‐Efficient Oxygen Evolution Reaction journal January 2021
Ultrafast construction of interfacial sites by wet chemical etching to enhance electrocatalytic oxygen evolution journal March 2020
In Situ Fabrication of Heterostructure on Nickel Foam with Tuned Composition for Enhancing Water‐Splitting Performance journal October 2018
Boosting oxygen evolution of single-atomic ruthenium through electronic coupling with cobalt-iron layered double hydroxides journal April 2019
Atomic Ir-doped NiCo layered double hydroxide as a bifunctional electrocatalyst for highly efficient and durable water splitting journal January 2020
Single-Atom Au/NiFe Layered Double Hydroxide Electrocatalyst: Probing the Origin of Activity for Oxygen Evolution Reaction journal February 2018
Dual‐Doping and Synergism toward High‐Performance Seawater Electrolysis journal July 2021
Atomic Cation‐Vacancy Engineering of NiFe‐Layered Double Hydroxides for Improved Activity and Stability towards the Oxygen Evolution Reaction journal October 2021
Fluorine-Anion-Modulated Electron Structure of Nickel Sulfide Nanosheet Arrays for Alkaline Hydrogen Evolution journal October 2019
The critical role of A, B-site cations and oxygen vacancies on the OER electrocatalytic performances of Bi0.15Sr0.85Co1−Fe O3−δ (0.2 ≤ x ≤ 1) perovskites in alkaline media journal January 2023
Intrinsic Electrocatalytic Activity for Oxygen Evolution of Crystalline 3d‐Transition Metal Layered Double Hydroxides journal May 2021
Engineering the electronic structure of single atom Ru sites via compressive strain boosts acidic water oxidation electrocatalysis journal March 2019
Atomically Embedded Ag via Electrodiffusion Boosts Oxygen Evolution of CoOOH Nanosheet Arrays journal December 2019
Single platinum atoms immobilized on an MXene as an efficient catalyst for the hydrogen evolution reaction journal December 2018
Efficient alkaline seawater oxidation by a three-dimensional core-shell dendritic NiCo@NiFe layered double hydroxide electrode journal October 2022
Highly Active and Durable Single‐Atom Tungsten‐Doped NiS 0.5 Se 0.5 Nanosheet @ NiS 0.5 Se 0.5 Nanorod Heterostructures for Water Splitting journal February 2022
In Situ Formation of Nano Ni–Co Oxyhydroxide Enables Water Oxidation Electrocatalysts Durable at High Current Densities journal September 2021
Dynamic stability of active sites in hydr(oxy)oxides for the oxygen evolution reaction journal March 2020
Transition metal oxides with perovskite and spinel structures for electrochemical energy production applications journal November 2022
Origin of enhanced water oxidation activity in an iridium single atom anchored on NiFe oxyhydroxide catalyst journal August 2021
Hydrothermal Continuous Flow Synthesis and Exfoliation of NiCo Layered Double Hydroxide Nanosheets for Enhanced Oxygen Evolution Catalysis journal January 2015
Innovative Strategies for Overall Water Splitting Using Nanostructured Transition Metal Electrocatalysts journal October 2022
A biomimetic nanoleaf electrocatalyst for robust oxygen evolution reaction journal December 2019
Ni–Co hydroxide nanosheets on plasma-reduced Co-based metal–organic nanocages for electrocatalytic water oxidation journal January 2019
Activating lattice oxygen in NiFe-based (oxy)hydroxide for water electrolysis journal April 2022
Iridium Oxide Modified with Silver Single Atom for Boosting Oxygen Evolution Reaction in Acidic Media journal March 2021
Engineering nickel vacancies in NiCo LDH nanoarrays accelerates hydrogen evolution and oxygen evolution reactions journal January 2022
Water‐Induced Formation of Ni 2 P–Ni 12 P 5 Interfaces with Superior Electrocatalytic Activity toward Hydrogen Evolution Reaction journal January 2021
Atomically targeting NiFe LDH to create multivacancies for OER catalysis with a small organic anchor journal March 2021
Interface Engineering of Co‐LDH@MOF Heterojunction in Highly Stable and Efficient Oxygen Evolution Reaction journal November 2020
B-doping-induced amorphization of LDH for large-current-density hydrogen evolution reaction journal February 2020
High-Valent Nickel Promoted by Atomically Embedded Copper for Efficient Water Oxidation journal August 2020
Dynamics of Both Active Phase and Catalysis Pathway for Spinel Water‐Oxidation Catalysts journal August 2022
A silver catalyst activated by stacking faults for the hydrogen evolution reaction journal October 2019
Engineering unsymmetrically coordinated Cu-S1N3 single atom sites with enhanced oxygen reduction activity journal June 2020
Suppressed Jahn–Teller Distortion in MnCo 2 O 4 @Ni 2 P Heterostructures to Promote the Overall Water Splitting journal July 2020
Construction of Ni‐Co‐Fe Hydr(oxy)oxide@Ni‐Co Layered Double Hydroxide Yolk‐Shelled Microrods for Enhanced Oxygen Evolution journal November 2022
Engineering NiO/NiFe LDH Intersection to Bypass Scaling Relationship for Oxygen Evolution Reaction via Dynamic Tridimensional Adsorption of Intermediates journal January 2019
Selectively anchoring single atoms on specific sites of supports for improved oxygen evolution journal May 2022
Ultrahigh-Loading of Ir Single Atoms on NiO Matrix to Dramatically Enhance Oxygen Evolution Reaction journal March 2020
Efficient direct seawater electrolysers using selective alkaline NiFe-LDH as OER catalyst in asymmetric electrolyte feeds journal January 2020
Engineered porous Ni2P-nanoparticle/Ni2P-nanosheet arrays via the Kirkendall effect and Ostwald ripening towards efficient overall water splitting journal May 2020
Recent Progress on Bimetallic‐Based Spinels as Electrocatalysts for the Oxygen Evolution Reaction journal August 2022
The role of adsorbed hydroxide in hydrogen evolution reaction kinetics on modified platinum journal October 2020
Holey Pt Nanosheets on NiFe-Hydroxide Laminates: Synergistically Enhanced Electrocatalytic 2D Interface toward Hydrogen Evolution Reaction journal July 2020
Impurity as a virtue journal March 2020
Iridium Single Atoms Coupling with Oxygen Vacancies Boosts Oxygen Evolution Reaction in Acid Media journal September 2020
Ultrahigh Oxygen Evolution Reaction Activity Achieved Using Ir Single Atoms on Amorphous CoO x Nanosheets journal December 2020
Dynamic Migration of Surface Fluorine Anions on Cobalt‐Based Materials to Achieve Enhanced Oxygen Evolution Catalysis journal November 2018
Cobalt Single Atom Incorporated in Ruthenium Oxide Sphere: A Robust Bifunctional Electrocatalyst for HER and OER journal December 2021

Similar Records

Introducing Fe 2+ into Nickel–Iron Layered Double Hydroxide: Local Structure Modulated Water Oxidation Activity
Journal Article · Wed Jun 27 00:00:00 EDT 2018 · Angewandte Chemie · OSTI ID:1457468

Cobalt Intercalated Layered NiFe Double Hydroxides for the Oxygen Evolution Reaction
Journal Article · Thu Sep 07 00:00:00 EDT 2017 · Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces and Biophysical Chemistry · OSTI ID:1418038