Interfacial engineering of bismuth sulfide/oxychloride heterostructure for boosting the conversion from CO2 to formate at large current densities

Article Multidisciplinary Sciences

Nano-crumples induced Sn-Bi bimetallic interface pattern with moderate electron bank for highly efficient CO2 electroreduction

Bohua Ren et al.

Summary: In this study, researchers designed and synthesized a nano-crumples induced Sn-Bi bimetallic interface-rich material, which significantly enhanced formate production in CO2 electroreduction reaction.

NATURE COMMUNICATIONS (2022)

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Article Chemistry, Physical

Regulating OCHO Intermediate as Rate-Determining Step of Defective Oxynitride Nanosheets Enabling Robust CO2 Electroreduction

Bo Zhang et al.

Summary: This study reports a novel porous indium oxynitride nanosheet catalyst with simultaneous incorporation of nitrogen dopant and oxygen vacancy for efficient conversion of CO2 to formic acid. The catalyst exhibits high formate selectivity and large partial current density, thanks to the synergistic effect between nitrogen dopants and oxygen vacancies. This work provides a fundamental understanding of the role of nitrogen dopants and oxygen vacancies in catalytic performance, and offers an effective platform for CO2 conversion.

ADVANCED ENERGY MATERIALS (2022)

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Review Chemistry, Physical

Recent Advances in Electrochemical CO2 Reduction on Indium-Based Catalysts

Jiayu Li et al.

Summary: Electrochemical reduction of CO2 using indium-based catalysts shows potential for reducing global carbon emissions. Further improvements in activity, selectivity, and stability are needed for commercialization. Recent progress focuses on active sites, reaction mechanisms, and operating conditions, with a summary of reported monometallic and bimetallic catalysts.

CHEMCATCHEM (2021)

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Article Chemistry, Multidisciplinary

Dynamic Restructuring of Cu-Doped SnS2 Nanoflowers for Highly Selective Electrochemical CO2 Reduction to Formate

Mengxin Chen et al.

Summary: This study demonstrates that Cu-doped SnS2 nanoflowers can undergo in situ dynamic restructuring to generate catalytically active S-doped Cu/Sn alloy, enabling highly selective electrochemical reduction of CO2 to formate over a wide potential window. Theoretical thermodynamic analysis reveals that the optimal electronic structure of the Sn active site can be regulated by S-doping and Cu-alloying, promoting formate formation while suppressing CO and H-2 pathways. These findings provide a rational strategy for electronic modulation of metal active sites to design active and selective electrocatalysts for CO2 reduction.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Multidisciplinary Sciences

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

Li-Ping Chi et al.

Summary: Recently developed solid-state catalysts can efficiently mediate the electroreduction of carbon dioxide to formate at high current densities. The introduction of zinc into indium sulfide can greatly enhance the stability and covalency of the catalyst, preventing the dissolution of active sites during high-rate electrolysis.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

Size-Dependent Selectivity of Electrochemical CO2 Reduction on Converted In2O3 Nanocrystals

Yang Huang et al.

Summary: The size modulation of catalyst particles can affect their selectivity and electrochemical performance; 5-nm and 15-nm In2O3 nanocrystals were prepared by controlling experimental parameters; The catalyst derived from 15-nm nanocubes showed higher selectivity and lower overpotential in CO2 reduction.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Large-Area Vertically Aligned Bismuthene Nanosheet Arrays from Galvanic Replacement Reaction for Efficient Electrochemical CO2 Conversion

Jia Fan et al.

Summary: In this work, it is demonstrated that the galvanic replacement reaction is an effective method for preparing high-quality bismuthene nanosheet arrays, enabling the growth of small-thickness, large-surface-area bismuthene nanosheets on copper substrates, and achieving efficient CO2 reduction reactions.

ADVANCED MATERIALS (2021)

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Review Chemistry, Inorganic & Nuclear

Heterojunction catalyst in electrocatalytic water splitting

Zhenxing Li et al.

Summary: The article summarizes the design strategies and synthesis methods of various heterojunction catalysts, as well as their applications in the water splitting process. By briefly discussing the current progress in electrocatalytic water splitting, it provides a prospect for the future of heterojunction catalysts in this field.

COORDINATION CHEMISTRY REVIEWS (2021)

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Article Environmental Sciences

Extreme sea levels at different global warming levels

Claudia Tebaldi et al.

Summary: This study used a multimethod approach to describe changes in extreme sea levels driven by changes in mean sea level associated with global warming levels from 1.5 to 5 degrees C. The findings suggest that by 2100, over 50% of the locations considered will experience present-day 100-yr extreme-sea-level events at least once a year, even under 1.5 degrees C of global warming. The tropics appear to be more sensitive to these changes compared to Northern high latitudes.

NATURE CLIMATE CHANGE (2021)

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Article Environmental Sciences

Impact of 1, 2 and 4 °C of global warming on ship navigation in the Canadian Arctic

Lawrence R. Mudryk et al.

Summary: This study uses climate model simulations to investigate changing navigability in the Canadian Arctic for major trade routes and coastal community resupply under different levels of global warming, showing longer shipping seasons and increased shipping traffic due to sea ice loss. The projections indicate significant increases in ship-accessible season length, especially in the Beaufort region, with 100% navigation probability for part of the year above 2 degrees C of global warming on certain trade routes.

NATURE CLIMATE CHANGE (2021)

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Article Chemistry, Physical

Electrochemical reduction of carbon dioxide with nearly 100% carbon monoxide faradaic efficiency from vacancy-stabilized single-atom active sites

Chenbao Lu et al.

Summary: Novel unsaturated single-atom catalysts with nearly 100% CO selectivity in CO2 reduction reaction have been reported. These unsaturated Ni-N-2 centered SACs exhibit outstanding activity, surpassing the state-of-the-art catalysts.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Physical

An overview of flow cell architecture design and optimization for electrochemical CO2 reduction

Dui Ma et al.

Summary: Converting CO2 into value-added fuels or chemical feedstocks through electrochemical reduction is a promising way to reduce atmospheric carbon dioxide levels and alleviate global warming. While there has been intensive research on developing new electrocatalysts, less attention has been paid to the engineering design of low-cost and large-scale CO2 reduction electrolyzer architectures.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Physical