Decoration of In nanoparticles on In2S3 nanosheets enables efficient electrochemical reduction of CO2

Yuan, Xin; Luo, Yantao; Zhang, Bin; Dong, Changxue; Lei, Jia; Yi, Facheng; Duan, Tao; Zhu, Wenkun; He, Rong

doi:10.1039/c9cc10078d

Cited by 30 publications

(12 citation statements)

References 30 publications

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“…A comprehensive review of recent literature revealed that our ZnIn 2 S 4 catalyst exhibits superb selectivity and partial current density (Fig. 2e ), which result in a formate production rate of up to 8,894 μmol cm −2 h −1 , outperforming all previous results 4 , 14 , 16 , 19 – 21 , 24 , 32 – 43 that have been reported under KHCO 3 environments (Fig. 2f ).…”

Section: Resultssupporting

confidence: 47%

Stabilizing indium sulfide for CO2 electroreduction to formate at high rate by zinc incorporation

et al. 2021

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Recently developed solid-state catalysts can mediate carbon dioxide (CO2) electroreduction to valuable products at high rates and selectivities. However, under commercially relevant current densities of > 200 milliamperes per square centimeter (mA cm−2), catalysts often undergo particle agglomeration, active-phase change, and/or element dissolution, making the long-term operational stability a considerable challenge. Here we report an indium sulfide catalyst that is stabilized by adding zinc in the structure and shows dramatically improved stability. The obtained ZnIn2S4 catalyst can reduce CO2 to formate with 99.3% Faradaic efficiency at 300 mA cm−2 over 60 h of continuous operation without decay. By contrast, similarly synthesized indium sulfide without zinc participation deteriorates quickly under the same conditions. Combining experimental and theoretical studies, we unveil that the introduction of zinc largely enhances the covalency of In-S bonds, which “locks” sulfur—a catalytic site that can activate H2O to react with CO2, yielding HCOO* intermediates—from being dissolved during high-rate electrolysis.

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Section: Resultssupporting

confidence: 47%

Stabilizing indium sulfide for CO2 electroreduction to formate at high rate by zinc incorporation

et al. 2021

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“…To reduce the thermodynamically stable CO 2 , catalysts are needed to increase the kinetics of the electrochemical reduction reaction and achieve an appreciable yield. Most of the catalytic materials studied to date can be divided into 1) metallic such as Au, [4–5] Ag, [6–7] Pd, [8–9] Pt, [10] Zn, [11–12] Cu, [13–15] Ni, [16–17] Fe, [18] Sn, [19–20] In, [21–22] Bi, [23] and alloys which include a combination of 2 or more of these metals, [24–33] 2) non‐metallics such as MoS 2 , [34] carbon compounds and its derivatives such as N‐doped carbon and carbon nanofibers [35–37] and 3) molecular catalysts [38–39] …”

Section: Dft Calculations On Sn‐based Catalysts For Co2 Reductionmentioning

confidence: 99%

Engineering Sn‐based Catalytic Materials for Efficient Electrochemical CO₂ Reduction to Formate

2021

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The electroreduction of CO2 provides a promising avenue to use renewable electricity for the sustainable production of chemicals and fuels. In particular, formate is attractive as a liquid hydrogen carrier or used directly in a fuel cell to generate electricity on demand. Sn‐based catalysts have emerged as promising catalysts, however key issues such as how to reduce overpotential, enhance selectivity and maximize long‐term stability are still yet to be resolved. In this minireview, we will highlight recent key advances in developing Sn‐based catalysts, covering experimental and computational efforts on this front. Intriguingly, among the various strategies employed, we find that modifying the Sn oxidation state towards electron deficiency has been most effective. Finally, we also provide a perspective and outlook on future research and development of these Sn‐based catalysts.

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“…As a typical n-type III-VI group chalcogenide semiconductor, In 2 S 3 with narrow band gap of 2.0-2.3 eV has attracted great interest for various applications recently [35]. Owing to its high photoelectric sensitivity, high photoconductivity, large photoelectric conversion yield, low toxicity, and high absorption coefficient [36][37][38], In 2 S 3 shows superior properties in optical-absorption applications such as photoanodes [35,[39][40][41][42][43][44][45], photocatalysts [36,[46][47][48][49][50][51][52][53], solar cells [54], photocatalytic conversion of carbon dioxide (CO 2 ) reduction [55,56], electrochemical storage cells [57], and photodetectors [37,58,59].…”

Section: Introductionmentioning

confidence: 99%

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

Lee

Jang

2021

Electron. Mater. Lett.

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As the interest in sustainable energy production increases, water splitting through semiconductor materials to convert solar energy directly to hydrogen energy has been extensively reported to date. Recently, the III-VI group chalcogenide semiconductors have received great attention for narrow-gap photoelectrochemical (PEC) water splitting electrodes. Among the metal sulfides, beta indium sulfide (β-In 2 S 3 ) shows remarkable properties for photoelectrodes such as high photoelectric sensitivity, high photoconductivity, large photoelectric conversion yield, low toxicity, high absorption coefficient, efficient charge separation, moderate charge transport, appropriate band position, and narrow band gap. Most of its unique properties come from the defective spinel crystal structure. Despite the superior advantages, there is a serious problem of photocorrosion induced by accumulated holes on the surface of the electrodes during the photocatalytic reaction under illumination which reduces the PEC properties. Herein, we review overall physicochemical and optoelectronic properties of β-In 2 S 3 , regardless of pros and cons, followed by the discussion of assorted strategies to further improve the PEC activities.

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Decoration of In nanoparticles on In₂S₃ nanosheets enables efficient electrochemical reduction of CO₂

Abstract: Decorating the In2S3 nanosheets with in situ formed In nanoparticles boosted the CO2 electroreduction.

Cited by 30 publications

References 30 publications

Stabilizing indium sulfide for CO2 electroreduction to formate at high rate by zinc incorporation

Stabilizing indium sulfide for CO2 electroreduction to formate at high rate by zinc incorporation

Engineering Sn‐based Catalytic Materials for Efficient Electrochemical CO₂ Reduction to Formate

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

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Decoration of In nanoparticles on In2S3 nanosheets enables efficient electrochemical reduction of CO2

Abstract: Decorating the In2S3 nanosheets with in situ formed In nanoparticles boosted the CO2 electroreduction.

Cited by 30 publications

References 30 publications

Stabilizing indium sulfide for CO2 electroreduction to formate at high rate by zinc incorporation

Stabilizing indium sulfide for CO2 electroreduction to formate at high rate by zinc incorporation

Engineering Sn‐based Catalytic Materials for Efficient Electrochemical CO2 Reduction to Formate

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

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Decoration of In nanoparticles on In₂S₃ nanosheets enables efficient electrochemical reduction of CO₂

Engineering Sn‐based Catalytic Materials for Efficient Electrochemical CO₂ Reduction to Formate