Achieving electroreduction of CO<sub>2</sub>to CH<sub>3</sub>OH with high selectivity using a pyrite–nickel sulfide nanocomposite

Zhao, Siqi; Guo, Sijie; Zhu, Cheng; Gao, Jin; Li, Hao; Huang, Hui; Liu, Yang

doi:10.1039/c6ra26868d

Cited by 72 publications

(30 citation statements)

References 40 publications

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“…While at –1.2 V vs. NHE in KHCO 3 HER is still the dominating reaction, the contribution of the CO 2 RR is slightly improved revealing faradaic efficiencies of 1.2% (CO), 1.8% (CH 4 ), 0.3% (C 2 H 6 ) and 61.5% (H 2 ). The observed performance of Fe 4.5 Ni 4.5 S 8 is in good agreement with the reports on greigite and pyrite in aqueous conditions 13,14,35…”

Section: Resultssupporting

confidence: 91%

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO₂ reduction

et al. 2019

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Section: Resultssupporting

confidence: 91%

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO₂ reduction

et al. 2019

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“…Protonation of adsorbed *CO 2 − into *HCOO − takes place that gets desorbed with ease due to low affinity for chemisorption with carbon supports, thus generating HCOOH with high selectivity. In another study, the fabrication of low costing, highly efficient heterostructured electrocatalyst using earth abundant transition metals, FeS 2 /NiS nanocomposites (average diameter size distribution of about 14 nm), for the reduction of CO 2 to CH 3 OH was demonstrated by Zhao et al [76] The as‐developed catalyst demonstrated high FE of up to 64% over low overpotentials of 280 mV at –0.6 V versus RHE. Compositing of FeS 2 with NiS gives rise to earlier reduction onset potentials while also enhanced current densities reaching 7.8 mA cm −2 at –0.68 V (Figure 6B, third image).…”

Section: Heterostructures In Electrocatalytic Co2 Reductionmentioning

confidence: 99%

Heterostructured Catalysts for Electrocatalytic and Photocatalytic Carbon Dioxide Reduction

Prabhu

Jose

Lee

2020

Adv Funct Materials

310

116

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Heterostructured catalysts are hybrid materials that contain interfaces between their constituents formed through combinations of multiple solid‐state materials. The presence of multiple constituents institutes a synergistic effect that endows the catalyst with superior performance and appreciable potential in a diverse range of catalytic applications, including electrocatalytic and photocatalytic reduction of carbon dioxide. These promising catalysts can support a feasible method for large‐scale processing of valuable carbonaceous feedstock or fuel generation and alleviation of atmospheric carbon dioxide levels. Such technologies will serve as the much‐needed remedy for the global energy and environmental crisis. A broad spectrum of recently developed heterostructured catalysts pertaining to electrocatalytic and photocatalytic carbon dioxide reduction is evaluated. The insights included are of relevance to refresh fundamentals pertaining to the electron transfer processes leading to carbon dioxide reduction and the mechanistic reduction pathways yielding a possible multitude of carbonaceous products. Detailed discussions provide a rational understanding of how the hybrid and resultant properties from various combinations are useful in enhancing catalytic function. Lastly, the performance profiles of various catalyst structures together with modification strategies employed are of interest to highlight the current challenges to and directions for future catalyst development.

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“…Electrochemical reduction of CO 2 to methanol (CH 3 OH) catalysed by transition metals has been proved feasible and effective in aqueous electrolytes. Zhao et al . demonstrated that FeS 2 /NiS nanocomposite can catalyse CO 2 RR at an unprecedented over‐potential of 280 mV and a high CH 3 OH faradaic efficiency up to 64% at the potential of ∼ 0.6 V. The FeS 2 /NiS catalyst performed a stable current density of 3.1 mA cm −2 over the 4 hours stability test.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline Pyrite for Photovoltaic Applications

et al. 2018

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Transition metal sulfides (TMSs) are of special interest in energy conversion and storage devices. Amongst all sulfides, fool's gold or iron pyrite (FeS 2 ) is potentially an attractive candidate for photovoltaic applications. Iron pyrite has risen to prominence due to its distinct properties and abundance in nature to meet the large scale needs. It is considered as environmentally benign solar absorber material with high absorption coefficient, α > 6 x10 5 cm À 1 for λ � 700 nm and suitable energy bandgap (E g = 0.95 eV). Numerous physical and chemical methods have been employed to deposit nanocrystalline pyrite thin films directly from source materials or indirectly by sulfuration. This review gives an overview of pyrite as a low cost photovoltaic absorber material for contemporary solar cell structures. In addition, practical approaches like the rational design of nanocomposites, band gap engineering and nanostructure synthesis of pyrite for improving its properties particularly photovoltaic properties are also deliberated. Moreover, limitations, challenges, remedies and prospects of pyrite as potential photovoltaic material are also reviewed to further advance the development of pyrite-based solar cell configurations.[a] Dr.at a low precursor concentration, pyrite nanocubes (125-250 nm in 20-180 min) were obtained due to low nuclei concentration and slow growth (diffusion limited) in quasiequilibrium. The anisotropic structures nanodendrites were 2 3 4 5 6 7 8

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Achieving electroreduction of CO₂to CH₃OH with high selectivity using a pyrite–nickel sulfide nanocomposite

Abstract: An FeS2/NiS electrocatalyst could selectively reduce CO2to CH3OH with an unprecedented overpotential of 280 mV and high faradaic efficiency.

Cited by 72 publications

References 40 publications

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO₂ reduction

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO₂ reduction

Heterostructured Catalysts for Electrocatalytic and Photocatalytic Carbon Dioxide Reduction

Nanocrystalline Pyrite for Photovoltaic Applications

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Achieving electroreduction of CO2to CH3OH with high selectivity using a pyrite–nickel sulfide nanocomposite

Abstract: An FeS2/NiS electrocatalyst could selectively reduce CO2to CH3OH with an unprecedented overpotential of 280 mV and high faradaic efficiency.

Cited by 72 publications

References 40 publications

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO2 reduction

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO2 reduction

Heterostructured Catalysts for Electrocatalytic and Photocatalytic Carbon Dioxide Reduction

Nanocrystalline Pyrite for Photovoltaic Applications

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Product

Resources

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Achieving electroreduction of CO₂to CH₃OH with high selectivity using a pyrite–nickel sulfide nanocomposite

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO₂ reduction

Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO₂ reduction