Ultrafine CuS anchored on nitrogen and sulfur Co-doped graphene for selective CO2 electroreduction to formate

Wu, Zongdeng; Jia, Yu; Ke, Wu; Song, Jing; Gao, Haiwen; Shen, Honglong; Xia, Xifeng; Lei, Wu; Hao, Qingli

doi:10.1016/j.apsusc.2021.151796

Cited by 30 publications

(14 citation statements)

References 47 publications

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“…In addition, catalysts with higher CO 2 RR catalytic activity generally have larger E HOMO and smaller ΔE, and these catalysts generally have stronger electron donating ability and faster electron transfer rate. Wu et al [88] reported small-sized CuS nanoparticles confined in nitrogen and sulfur codoped reduced graphene oxide (CuS/N, S-rGO) for electrochemical reduction of carbon dioxide to formate (Figure 5a). The electrocatalytic activity of the samples was initially investigated by LSV in N 2 or CO 2 saturated 0.5 m KHCO 3 aqueous solution at a scan rate of 10 mV s −1 (Figure 5b).…”

Section: Graphenementioning

confidence: 99%

“…The TEM images of GF@MoS 2 -TiO 2 (Figure 8a-c) show that the thin MoS 2 nanosheets are covered on the TiO 2 nanosheets. The energy band structure and [88] Copyright 2022, Elsevier. d) LSV curves acquired in CO 2 -saturated electrolyte at the scan rate of 10 mV s −1 .…”

Section: Tmdcsmentioning

confidence: 99%

“…Wu et al. [ 88 ] reported small‐sized CuS nanoparticles confined in nitrogen and sulfur codoped reduced graphene oxide (CuS/N, S‐rGO) for electrochemical reduction of carbon dioxide to formate ( Figure a). The electrocatalytic activity of the samples was initially investigated by LSV in N 2 or CO 2 saturated 0.5 m KHCO 3 aqueous solution at a scan rate of 10 mV s −1 (Figure 5b).…”

Section: Research and Development Of 2d Materialsmentioning

confidence: 99%

Section: Research and Development Of 2d Materialsmentioning

confidence: 99%

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A Critical Review on New and Efficient 2D Materials for Catalysis

Zhao

Wang

2022

Adv Materials Inter

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by molybdenum disulfide (MoS 2 ) and tungsten disulfide (WS 2 ), boron nitride (BN), and part of alloy nanosheets are two-element 2D materials; and transition metal carbide and nitride (MXene) are multielement 2D materials. [6][7][8][9] Graphene is widely used in catalysis due to its unique electronic structure. Its main applications include electrocatalysis, [10,11] photocatalysis, [12] and thermocatalysis. [13] Due to the lack of sufficient energy gap in natural graphene, the electron transfer efficiency is very low. [14] There are many ways to improve the catalytic performance of graphene, such as dislocations, vacancies, edges, impurities, and functional groups that interfere with the graphene structure. [6,15] Due to its unique physicochemical properties and broad application prospects, 2D element metal nanosheets (such as Ru, Bi, Rh, Pd, and Cu) have gradually attracted the attention of researchers. [16][17][18][19][20] The thickness of a single metal atom or several metal atoms makes them have ultrahigh specific surface area and relatively high surface energy, and the abundant surface metal active sites make them have a wide range of applications in the field of catalysis. For example, Ru NSs and their derived Ru oxides exhibit excellent hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activities, respectively. [16] Bi (001) porous nanosheets exhibit excellent electrochemical performance in the reduction of CO 2 to formate. [17] Single-crystal Rh nanosheets exhibit extremely high catalytic activity in hydrogenation reactions. [18] On this basis, 2D alloy nanosheets (such as PdAg, PdAu, AuAg, PtCu, etc.) have made substantial progress in the field of catalysis in recent years. [18] Compared with 2D element metal nanosheets, 2D alloy nanosheets not only inherit the advantages of ultrahigh specific surface area and inherent properties of 2D metals, but also the synergistic effect between different elements also promotes some catalytic reactions to a certain extent. TMDCs are widely used in heterogeneous catalysis due to their unique mechanical structure and electronic properties. The layered structure of TMDCs gives them highly anisotropic properties, extremely high specific surface area, the possibility of intercalating different species between the layers, and stability as ultrathin as thin as three atomic layers thick. [21] Structural cutting, defect engineering, chemical modification, and combination with other layered materials with complementary functions can effectively improve the catalytic activity of TMDCs. [22] For example, electrochemical tests on MoS 2 triangular clustersThe unique structure and properties of graphene make it have excellent performance in the field of catalysis. It can be modified in various ways to improve its catalytic ability. Notably, other 2D materials with similar properties to graphene (black phosphorus (BP), 2D transition metal dichalcogenides represented by molybdenum disulfide (MoS 2 ) and tungsten disulfide (WS 2 ), boron nitride (BN), and transiti...

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Section: Graphenementioning

confidence: 99%

Section: Tmdcsmentioning

confidence: 99%

Section: Research and Development Of 2d Materialsmentioning

confidence: 99%

Section: Research and Development Of 2d Materialsmentioning

confidence: 99%

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A Critical Review on New and Efficient 2D Materials for Catalysis

Zhao

Wang

2022

Adv Materials Inter

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“…Copper and copper-based materials have been widely studied as CO 2 RR catalysts, which can electrocatalyze CO 2 to produce C 1 products such as CO and formic acid, and C 2 products such as ethanol and ethylene. [7][8][9] However, the catalytic mechanism of C 2 products has not been clarified so far. Koper et al [10] calculated the hydrogen electrode model and found that two CO molecules were coupled on the Cu (100) crystal plane and formed *C 2 O 2 with electron transfer.…”

Section: Introductionmentioning

confidence: 99%

High Efficient Catalyst of N‐doped Carbon Modified Copper Containing Rich Cu−N−C Active Sites for Electrocatalytic CO₂ Reduction

Sun

Jing

et al. 2022

ChemistrySelect

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The synthesis of multi-carbon products through electrochemical CO 2 reduction reactions has attracted great interest from researchers. Herein, nitrogen-and carbon-doped copper nanocatalyst (NCÀ Cu) containing abundant CuÀ NÀ C active sites was prepared by thermal decomposition of the complexes containing copper and melamine. The NCÀ Cu catalyst exhibited an ideal current density of 22 mA cm À 2 at À 0.93 V versus reversible hydrogen electrode (vs. RHE) in CO 2 -saturated 0.5 M KHCO 3 medium, with ethanol as the predominant product at À 0.93 V (vs. RHE) and a maximum Faraday efficiency of 31 %. The current density of the catalyst remained almost unchanged after 20 h of electrolysis, indicating its excellent stability. The excellent catalytic ability is attributed to the abundant CuÀ NÀ C active sites of NCÀ Cu with 3D porous microstructure.

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Facet Dopant Regulation of Cu₂O Boosts Electrocatalytic CO₂ Reduction to Formate

Zhang

Fan

et al. 2023

Adv Funct Materials

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Electrochemical carbon dioxide reduction reaction (CO 2 RR) using clean electric energy provides a sustainable route to generate highly-valuable chemicals and fuels, which is beneficial for realizing the carbon-neutral cycle. Up to now, achieving a narrow product distribution and highly targeted product selectivity over Cu-based electrocatalysts is still a big challenge. Herein, sulfur modification on different crystal planes of cuprous oxide (Cu 2 O) is demonstrated, results in an improvement for formate generation to different degrees. Experimental results and density functional theory (DFT) calculations reveal that sulfur species modified on the surface of Cu 2 O (100) facet effectively lower the formation energy of key intermediate *OCOH for formate generation compared with Cu 2 O (111) facet. As a consequence, the modification of p-Block elements over Cu-based electrocatalysts is an effective strategy to optimize the adsorption energy of key intermediate during CO 2 RR, leading to a highly selective product.

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Ultrafine CuS anchored on nitrogen and sulfur Co-doped graphene for selective CO2 electroreduction to formate

Cited by 30 publications

References 47 publications

A Critical Review on New and Efficient 2D Materials for Catalysis

A Critical Review on New and Efficient 2D Materials for Catalysis

High Efficient Catalyst of N‐doped Carbon Modified Copper Containing Rich Cu−N−C Active Sites for Electrocatalytic CO₂ Reduction

Facet Dopant Regulation of Cu₂O Boosts Electrocatalytic CO₂ Reduction to Formate

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Ultrafine CuS anchored on nitrogen and sulfur Co-doped graphene for selective CO2 electroreduction to formate

Cited by 30 publications

References 47 publications

A Critical Review on New and Efficient 2D Materials for Catalysis

A Critical Review on New and Efficient 2D Materials for Catalysis

High Efficient Catalyst of N‐doped Carbon Modified Copper Containing Rich Cu−N−C Active Sites for Electrocatalytic CO2 Reduction

Facet Dopant Regulation of Cu2O Boosts Electrocatalytic CO2 Reduction to Formate

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Product

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High Efficient Catalyst of N‐doped Carbon Modified Copper Containing Rich Cu−N−C Active Sites for Electrocatalytic CO₂ Reduction

Facet Dopant Regulation of Cu₂O Boosts Electrocatalytic CO₂ Reduction to Formate