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Title: Hierarchical Thiospinel NiCo 2S4/Polyaniline Hybrid Nanostructures as a Bifunctional Electrocatalyst for Highly Efficient and Durable Overall Water Splitting

Journal Article · · Advanced Materials Interfaces

The development of a nonprecious, stable, and highly effective electrocatalyst for decomposition of water into oxygen and hydrogen is vitally important for sustainable energy conversion, but it still remains challenging to replace the noble metal electrocatalysts with more economically viable alternatives. Here, in this paper, a polyaniline (PANI) decorated hierarchical nickel cobalt thiospinel (NiCo2S4) hybrid catalyst (NCS-P) has been developed that shows enhanced dual catalytic activity for both the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) compared to pristine NiCo2S4 (NCS). Benefiting from the conductive PANI coating, the hierarchical NCS-P nanostructure exhibits outstanding electrocatalytic activity in alkaline solution with low overpotentials of 273 ± 3 and 77 ± 4 mV at 10 mA cm-2 and low Tafel slopes of 42.2 and 68.5 mV dec-1 for OER and HER, respectively, which are better than those of the benchmark noble-metal-based RuO2 and Pt/C.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; National Research Foundation of Korea (NRF)
Grant/Contract Number:
AC02-05CH11231; SC0004993; NRF-2017M3D1A1039379; NRF-2020M3H7A1096388; NRF-2021R1A2C2010244; NRF-2020R1C1C1008458
OSTI ID:
1962019
Journal Information:
Advanced Materials Interfaces, Vol. 9, Issue 25; ISSN 2196-7350
Publisher:
Wiley-VCHCopyright Statement
Country of Publication:
United States
Language:
English

References (49)

Sulfur-Decorated Molybdenum Carbide Catalysts for Enhanced Hydrogen Evolution journal October 2015
A flexible high-performance oxygen evolution electrode with three-dimensional NiCo2O4 core-shell nanowires journal January 2015
Ni Strongly Coupled with Mo 2 C Encapsulated in Nitrogen-Doped Carbon Nanofibers as Robust Bifunctional Catalyst for Overall Water Splitting journal January 2019
Projector augmented-wave method journal December 1994
Hierarchical NiCo 2 S 4 Nanowire Arrays Supported on Ni Foam: An Efficient and Durable Bifunctional Electrocatalyst for Oxygen and Hydrogen Evolution Reactions journal April 2016
Co/CoP embedded in a hairy nitrogen-doped carbon polyhedron as an advanced tri-functional electrocatalyst journal January 2018
Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives journal January 2017
Bulk and surface dual modification of nickel-cobalt spinel with ruthenium toward highly efficient overall water splitting journal May 2022
Core–Shell Cu@CoP as Highly Efficient and Durable Bifunctional Electrodes for Electrochemical Water Splitting journal July 2020
Active and Durable Hydrogen Evolution Reaction Catalyst Derived from Pd-Doped Metal–Organic Frameworks journal May 2016
Selective transport and separation of charge–carriers by an electron transport layer in NiCo2S4/CdO@CC for excellent water splitting journal May 2020
High-Performance Overall Water Splitting Electrocatalysts Derived from Cobalt-Based Metal–Organic Frameworks journal November 2015
A fast and robust algorithm for Bader decomposition of charge density journal June 2006
A post-Hartree-Fock model of intermolecular interactions: Inclusion of higher-order corrections journal May 2006
Novel approach to synthesize NiCo2S4 composite for high-performance supercapacitor application with different molar ratio of Ni and Co journal September 2019
Promoting electrocatalytic overall water splitting by sulfur incorporation into CoFe-(oxy)hydroxide journal January 2021
Opportunities and challenges for a sustainable energy future journal August 2012
Modulating electronic structure of cobalt phosphide porous nanofiber by ruthenium and nickel dual doping for highly-efficiency overall water splitting at high current density journal December 2021
Enhanced oxygen and hydrogen evolution performance by carbon-coated CoS2–FeS2 nanosheets journal January 2020
Bimetal-Organic Framework Derived CoFe 2 O 4 /C Porous Hybrid Nanorod Arrays as High-Performance Electrocatalysts for Oxygen Evolution Reaction journal November 2016
Implicit solvation model for density-functional study of nanocrystal surfaces and reaction pathways journal February 2014
Engineering an Earth-Abundant Element-Based Bifunctional Electrocatalyst for Highly Efficient and Durable Overall Water Splitting journal January 2019
Boosting electrochemical water splitting via ternary NiMoCo hybrid nanowire arrays journal January 2019
Sustainable Hydrogen Production journal August 2004
A nest-like Ni@Ni1.4Co1.6S2 electrode for flexible high-performance rolling supercapacitor device design journal January 2015
Design of electrocatalysts for oxygen- and hydrogen-involving energy conversion reactions journal January 2015
Two-Dimensional MoS 2 Confined Co(OH) 2 Electrocatalysts for Hydrogen Evolution in Alkaline Electrolytes journal April 2018
Overall electrochemical splitting of water at the heterogeneous interface of nickel and iron oxide journal December 2019
Special points for Brillouin-zone integrations journal June 1976
Nanostructured Polyaniline-Decorated Pt/C@PANI Core–Shell Catalyst with Enhanced Durability and Activity journal August 2012
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Efficient Water Splitting Actualized through an Electrochemistry‐Induced Hetero‐Structured Antiperovskite/(Oxy)Hydroxide Hybrid journal November 2020
Pt-like Hydrogen Evolution Electrocatalysis on PANI/CoP Hybrid Nanowires by Weakening the Shackles of Hydrogen Ions on the Surfaces of Catalysts journal April 2018
Self-crosslinkable polyaniline with coordinated stabilized CoOOH nanosheets as a high-efficiency electrocatalyst for oxygen evolution reaction journal November 2020
Polyaniline coating enables electronic structure engineering in Fe3O4 to promote alkaline oxygen evolution reaction journal January 2022
Hierarchical FeCo2S4@CoFe layered double hydroxide on Ni foam as a bifunctional electrocatalyst for overall water splitting journal January 2020
One-pot synthesis of Mn–Fe bimetallic oxide heterostructures as bifunctional electrodes for efficient overall water splitting journal January 2020
Carbon Dots Decorated Hierarchical NiCo2S4/Ni3S2 Composite for Efficient Water Splitting journal December 2018
Three-Dimensional N-Doped Carbon Nanotube Frameworks on Ni Foam Derived from a Metal–Organic Framework as a Bifunctional Electrocatalyst for Overall Water Splitting journal December 2019
Water Splitting: One-Step Synthesis of CoS-Doped β-Co(OH)2 @Amorphous MoS2+ x Hybrid Catalyst Grown on Nickel Foam for High-Performance Electrochemical Overall Water Splitting (Adv. Funct. Mater. 41/2016) journal November 2016
Bifunctional Porous NiFe/NiCo 2 O 4 /Ni Foam Electrodes with Triple Hierarchy and Double Synergies for Efficient Whole Cell Water Splitting journal April 2016
Polyoxometalate precursors for precisely controlled synthesis of bimetallic sulfide heterostructure through nucleation-doping competition journal January 2018
Carbon Quantum Dot/NiFe Layered Double-Hydroxide Composite as a Highly Efficient Electrocatalyst for Water Oxidation journal April 2014
Hydrogen Production From Water Electrolysis: Current Status and Future Trends journal February 2012
Toward the rational design of non-precious transition metal oxides for oxygen electrocatalysis journal January 2015
Combining theory and experiment in electrocatalysis: Insights into materials design journal January 2017
Facile synthesis of ultrathin NiCo2S4 nano-petals inspired by blooming buds for high-performance supercapacitors journal January 2017
Controlled synthesis of NiCo2S4 nanostructured arrays on carbon fiber paper for high-performance pseudocapacitors journal September 2015
Co(OH) 2 @PANI Hybrid Nanosheets with 3D Networks as High-Performance Electrocatalysts for Hydrogen Evolution Reaction journal October 2015