DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Cactus-like NiCo2S4@NiFe LDH hollow spheres as an effective oxygen bifunctional electrocatalyst in alkaline solution

Journal Article · · Applied Catalysis B: Environmental
 [1];  [2];  [2];  [3];  [2];  [3];  [2];  [2];  [2];  [2]
  1. Beijing Inst. of Technology (China); Univ. of Connecticut, Storrs, CT (United States); Univ of Connecticut
  2. Beijing Inst. of Technology (China)
  3. Univ. of Connecticut, Storrs, CT (United States)

The high-performance non-precious electrocatalysts for both oxygen redn. reaction (ORR) and oxygen evolution reaction (OER) are crucial to the practical application of fuel cells and metal-air batteries. Herein, a novel cactus-like NiCo2S4@NiFe LDH hollow sphere assembled by one-dimensional (1D) NiFe LDH nanowires and two-dimensional (2D) NiFe LDH nanosheets on the NiCo2S4 hollow spheres is prepd. by a facile hydrothermal method. The outer NiFe LDH nanowires and NiFe LDH nanosheets can effectively suppress the collapse and corrosion of inner NiCo2S4 hollow structure during long-term stability tests. The integration of the effective OER electrocatalyst NiFe LDH into NiCo2S4 to form heterostructures, as well as the strong electronic interaction between NiCo2S4 and NiFe LDH, can greatly boost both ORR and OER activities. Due to the above merits, the NiCo2S4@NiFe LDH achieves remarkably a small potential gap (ΔE = Ej=10-E1/2) of only 0.667 V. In this paper, we offer a facile strategy to design efficient catalysts with heterostructures.

Research Organization:
Univ. of Connecticut, Storrs, CT (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
FG02-86ER13622
OSTI ID:
1776510
Journal Information:
Applied Catalysis B: Environmental, Journal Name: Applied Catalysis B: Environmental Vol. 286; ISSN 0926-3373
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (41)

An Advanced Nitrogen-Doped Graphene/Cobalt-Embedded Porous Carbon Polyhedron Hybrid for Efficient Catalysis of Oxygen Reduction and Water Splitting journal December 2014
Self‐Templated Conversion of Metallogel into Heterostructured TMP@Carbon Quasiaerogels Boosting Bifunctional Electrocatalysis journal July 2019
Defect-Rich MoS 2 Ultrathin Nanosheets with Additional Active Edge Sites for Enhanced Electrocatalytic Hydrogen Evolution journal August 2013
Spatially Confined Hybridization of Nanometer-Sized NiFe Hydroxides into Nitrogen-Doped Graphene Frameworks Leading to Superior Oxygen Evolution Reactivity journal June 2015
Interfacial Electron Transfer of Ni 2 P-NiP 2 Polymorphs Inducing Enhanced Electrochemical Properties journal October 2018
Identifying the Activation of Bimetallic Sites in NiCo 2 S 4 @g‐C 3 N 4 ‐CNT Hybrid Electrocatalysts for Synergistic Oxygen Reduction and Evolution journal February 2019
CuCo 2 S 4 Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries journal July 2019
A Bifunctional Hybrid Electrocatalyst for Oxygen Reduction and Evolution: Cobalt Oxide Nanoparticles Strongly Coupled to B,N-Decorated Graphene journal May 2017
The Role of Non‐Metallic and Metalloid Elements on the Electrocatalytic Activity of Cobalt and Nickel Catalysts for the Oxygen Evolution Reaction journal September 2019
Oxygen Vacancy–Rich In‐Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn–Air Batteries journal September 2019
Fabrication of Hollow CoP/TiO x Heterostructures for Enhanced Oxygen Evolution Reaction journal December 2019
A strongly cooperative spinel nanohybrid as an efficient bifunctional oxygen electrocatalyst for oxygen reduction reaction and oxygen evolution reaction journal November 2018
An effective method for enhancing oxygen evolution kinetics of LaMO3 (M = Ni, Co, Mn) perovskite catalysts and its application to a rechargeable zinc–air battery journal March 2020
“Structural instability” induced high-performance NiFe layered double hydroxides as oxygen evolution reaction catalysts for pH-near-neutral borate electrolyte: The role of intercalates journal April 2020
Three-dimensional open CoMoOx/CoMoSx/CoSx nanobox electrocatalysts for efficient oxygen evolution reaction journal May 2020
Interface engineering for enhancing electrocatalytic oxygen evolution of NiFe LDH/NiTe heterostructures journal September 2020
Coupling of iron phthalocyanine at carbon defect site via π-π stacking for enhanced oxygen reduction reaction journal January 2021
Interlaced Ni-Co LDH nanosheets wrapped Co9S8 nanotube with hierarchical structure toward high performance supercapacitors journal November 2018
Effect of nondegeneracy on Ni3-xCoxS4 for high performance supercapacitor journal February 2020
Template-assisted synthesis of hierarchically hollow C/NiCo2S4 nanospheres electrode for high performance supercapacitors journal February 2020
NiCo2S4 spheres grown on N,S co-doped rGO with high sulfur vacancies as superior oxygen bifunctional electrocatalysts journal January 2020
Surface Restructuring of Nickel Sulfide Generates Optimally Coordinated Active Sites for Oxygen Reduction Catalysis journal November 2017
Hierarchical NiCo-LDH@NiOOH core-shell heterostructure on carbon fiber cloth as battery-like electrode for supercapacitor journal February 2018
Sub-3 nm pores in two-dimensional nanomesh promoting the generation of electroactive phase for robust water oxidation journal November 2018
One-Pot Synthesis of Zeolitic Imidazolate Framework 67-Derived Hollow Co 3 S 4 @MoS 2 Heterostructures as Efficient Bifunctional Catalysts journal June 2017
Sulfurizing-Induced Hollowing of Co 9 S 8 Microplates with Nanosheet Units for Highly Efficient Water Oxidation journal March 2017
Self-Supported Nickel Iron Layered Double Hydroxide-Nickel Selenide Electrocatalyst for Superior Water Splitting Activity journal April 2017
One-Pot Synthesis of NiCo 2 S 4 Hollow Spheres via Sequential Ion-Exchange as an Enhanced Oxygen Bifunctional Electrocatalyst in Alkaline Solution journal July 2018
Tuning the Bifunctional Oxygen Electrocatalytic Properties of Core–Shell Co 3 O 4 @NiFe LDH Catalysts for Zn–Air Batteries: Effects of Interfacial Cation Valences journal May 2019
Constructing Bifunctional 3D Holey and Ultrathin CoP Nanosheets for Efficient Overall Water Splitting journal July 2019
Facile Synthesis of Co 9 S 8 Hollow Spheres as a High-Performance Electrocatalyst for the Oxygen Evolution Reaction journal December 2017
Fabrication of NiO Microflake@NiFe-LDH Nanosheet Heterostructure Electrocatalysts for Oxygen Evolution Reaction journal December 2018
Atomic-level insight into super-efficient electrocatalytic oxygen evolution on iron and vanadium co-doped nickel (oxy)hydroxide journal July 2018
Non-noble metal-nitride based electrocatalysts for high-performance alkaline seawater electrolysis journal November 2019
Overall electrochemical splitting of water at the heterogeneous interface of nickel and iron oxide journal December 2019
Dynamic electrocatalyst with current-driven oxyhydroxide shell for rechargeable zinc-air battery journal April 2020
Low-temperature synthesis and investigation into the formation mechanism of high quality Ni-Fe layered double hydroxides hexagonal platelets journal March 2018
Hierarchical nickel–cobalt phosphide yolk–shell spheres as highly active and stable bifunctional electrocatalysts for overall water splitting journal January 2016
Direct observation of active catalyst surface phases and the effect of dynamic self-optimization in NiFe-layered double hydroxides for alkaline water splitting journal January 2019
Multifunctional nanostructured electrocatalysts for energy conversion and storage: current status and perspectives journal January 2018
Ternary metal sulfides for electrocatalytic energy conversion journal January 2019