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Title: Low-dimensional hyperthin FeS2 nanostructures for efficient and stable hydrogen evolution electrocatalysis

Journal Article · · ACS Catalysis
 [1];  [2];  [1];  [2];  [3];  [1]
  1. Univ. of Kansas, Lawrence, KS (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. of Kansas, Lawrence, KS (United States); Temple Univ., Philadelphia, PA (United States)

We report a scalable, solution-processing method for synthesizing low-dimensional hyperthin FeS2 nanostructures, and we show that 2D FeS2 disc nanostructures are an efficient and stable hydrogen evolution electrocatalyst. By changing the Fe:S ratio in the precursor solution, we were able to preferentially synthesize either 1D wire or 2D disc nanostructures. The 2D FeS2 disc structure has the highest electrocatalytic activity for the hydrogen evolution reaction, comparable to platinum in neutral pH conditions. Moreover, the ability of the FeS2 nanostructures to generate hydrogen was confirmed by scanning electrochemical microscopy, and the 2D disc nanostructures were able to generate hydrogen for over 125 h.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Energy Frontier Research Centers (EFRC) (United States). Center for the Computational Design of Functional Layered Materials (CCDM)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; SC0012575
OSTI ID:
1241482
Report Number(s):
BNL-111798-2016-JA; R&D Project: MA015MACA; KC0201010
Journal Information:
ACS Catalysis, Vol. 5, Issue 11; ISSN 2155-5435
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 122 works
Citation information provided by
Web of Science

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Two-dimensional FeS 2 -encapsulated Au: a quasi-epitaxial heterojunction for synergistic catalytic activity under photoelectrocatalytic water reduction journal January 2019
Electrochemical aspects of photocatalysis: Au@FeS 2 nanocomposite for removal of industrial pollutant journal January 2017
Bulk iron pyrite as a catalyst for the selective hydrogenation of nitroarenes journal January 2017
Nanostructured Metal Chalcogenides for Energy Storage and Electrocatalysis journal August 2017
Electron density modulation of NiCo2S4 nanowires by nitrogen incorporation for highly efficient hydrogen evolution catalysis journal April 2018
Earth‐Abundant Transition‐Metal‐Based Electrocatalysts for Water Electrolysis to Produce Renewable Hydrogen journal June 2018
Synthesis of Thin‐Film Metal Pyrites by an Atomic Layer Deposition Approach journal October 2018
Nanostructured binary and ternary metal sulfides: synthesis methods and their application in energy conversion and storage devices journal January 2017
Fabrication of C/Co-FeS2/CoS2 with Highly Efficient Hydrogen Evolution Reaction journal June 2019
Pyrite nanoparticles: an Earth-abundant mineral catalyst for activation of molecular hydrogen and hydrogenation of nitroaromatics journal January 2016
Bifunctional iron disulfide nanoellipsoids for high energy density supercapacitor and electrocatalytic oxygen evolution applications journal January 2019
Improving Hydrogen Evolution Activity of Earth-Abundant Cobalt-Doped Iron Pyrite Catalysts by Surface Modification with Phosphide journal December 2016
Co-Doped FeS 2 with a porous structure for efficient electrocatalytic overall water splitting journal January 2020
Recent Progress on Pyrite FeS2 Nanomaterials for Energy and Environment Applications: Synthesis, Properties and Future Prospects journal November 2019
Nanoarchitectonics for Transition‐Metal‐Sulfide‐Based Electrocatalysts for Water Splitting journal February 2019
Ternary metal sulfides for electrocatalytic energy conversion journal January 2019
Earth-Abundant Electrocatalysts in Proton Exchange Membrane Electrolyzers journal December 2018
Iron Sulfide Materials: Catalysts for Electrochemical Hydrogen Evolution journal June 2019
Chemical vapor deposition and phase stability of pyrite on SiO 2 journal January 2018
Atomic Layer Deposition of Iron Sulfide and Its Application as a Catalyst in the Hydrogenation of Azobenzenes journal February 2017
Hierarchical Cobalt Sulfide/Molybdenum Sulfide Heterostructure as Bifunctional Electrocatalyst towards Overall Water Splitting journal November 2018
Porous TiO 2 /Co 9 S 8 core-branch nanosheet arrays with high electrocatalytic activity for a hydrogen evolution reaction journal July 2019
Electrosynthesis of NiP x nanospheres for electrocatalytic hydrogen evolution from a neutral aqueous solution journal January 2017
Design, synthesis, and energy-related applications of metal sulfides journal January 2016
Applying surface strain and coupling with pure or N/B-doped graphene to successfully achieve high HER catalytic activity in 2D layered SnP 3 -based nanomaterials: a first-principles investigation journal January 2020
Synthesis of nanostructured powders and thin films of iron sulfide from molecular precursors journal January 2018
Achieving electroreduction of CO 2 to CH 3 OH with high selectivity using a pyrite–nickel sulfide nanocomposite journal January 2017
Co( ii )Tetraphenyltetraphenanthroporphyrin@MWCNTs: enhanced π–π interaction for robust electrochemical catalysis journal January 2019
FeS2/C Nanowires as an Effective Catalyst for Oxygen Evolution Reaction by Electrolytic Water Splitting journal October 2019