Recent advances of bismuth-based electrocatalysts for CO2 reduction: Strategies, mechanism and applications

Liang, Xiao-Du; Tian, Na; Hu, Sheng-Nan; Zhou, Zhi‐You; Sun, Shi‐Gang

doi:10.1016/j.matre.2023.100191

Cited by 16 publications

(6 citation statements)

References 201 publications

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“…Of the remaining three transition metals tested in the batch tests described above, Bi and Sn were of interest due to their known catalytic properties in the electrochemical conversion of CO 2 [ 37 , 38 ]. Bi performed well and seemed to have a positive contribution to CH 4 production in both H 2 /CO 2 and acetate consumption tests.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Bismuth and Tin on Methane and Acetate Production in a Microbial Electrosynthesis Cell Fed with Carbon Dioxide

Gharbi,

Omanovic,

Hrapovic

et al. 2024

Molecules

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This study investigates the impacts of bismuth and tin on the production of CH4 and volatile fatty acids in a microbial electrosynthesis cell with a continuous CO2 supply. First, the impact of several transition metal ions (Ni2+, Fe2+, Cu2+, Sn2+, Mn2+, MoO42−, and Bi3+) on hydrogenotrophic and acetoclastic methanogenic microbial activity was evaluated in a series of batch bottle tests incubated with anaerobic sludge and a pre-defined concentration of dissolved transition metals. While Cu is considered a promising catalyst for the electrocatalytic conversion of CO2 to short chain fatty acids such as acetate, its presence as a Cu2+ ion was demonstrated to significantly inhibit the microbial production of CH4 and acetate. At the same time, CH4 production increased in the presence of Bi3+ (0.1 g L−1) and remained unchanged at the same concentration of Sn2+. Since Sn is of interest due to its catalytic properties in the electrochemical CO2 conversion, Bi and Sn were added to the cathode compartment of a laboratory-scale microbial electrosynthesis cell (MESC) to achieve an initial concentration of 0.1 g L−1. While an initial increase in CH4 (and acetate for Sn2+) production was observed after the first injection of the metal ions, after the second injection, CH4 production declined. Acetate accumulation was indicative of the reduced activity of acetoclastic methanogens, likely due to the high partial pressure of H2. The modification of a carbon-felt electrode by the electrodeposition of Sn metal on its surface prior to cathode inoculation with anaerobic sludge showed a doubling of CH4 production in the MESC and a lower concentration of acetate, while the electrodeposition of Bi resulted in a decreased CH4 production.

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Section: Resultsmentioning

confidence: 99%

The Effect of Bismuth and Tin on Methane and Acetate Production in a Microbial Electrosynthesis Cell Fed with Carbon Dioxide

Gharbi,

Omanovic,

Hrapovic

et al. 2024

Molecules

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“…Bismuth nanoparticles (NPs) have been widely studied as a catalyst for CO 2 RR − because bismuth is highly selective toward formate production. − Previously, we developed Bi 2 O 3 NPs supported on vulcanized carbon (Bi/C) that showed very high activity and selectivity. , To explore the practical application of these catalysts, the samples were also tested in a commercial flow cell working in continuous mode, where the input to the cathode was only humidified CO 2 , without a catholyte . The measurements showed one of the best balances between the formate concentration, Faradaic efficiency, and energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Revealing the Intrinsic Restructuring of Bi₂O₃ Nanoparticles into Bi Nanosheets during Electrochemical CO₂ Reduction

Ávila-Bolívar,

Lopez Luna,

Yang

et al. 2024

ACS Appl. Mater. Interfaces

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Bismuth is a catalyst material that selectively produces formate during the electrochemical reduction of CO 2 . While different synthesis strategies have been employed to create electrocatalysts with better performance, the restructuring of bismuth precatalysts during the reaction has also been previously reported. The mechanism behind the change has, however, remained unclear. Here, we show that Bi 2 O 3 nanoparticles supported on Vulcan carbon intrinsically transform into stellated nanosheet aggregates upon exposure to an electrolyte. Liquid cell transmission electron microscopy observations first revealed the gradual restructuring of the nanoparticles into nanosheets in the presence of 0.1 M KHCO 3 without an applied potential. Our experiments also associated the restructuring with solubility of bismuth in the electrolyte. While the consequent agglomerates were stable under moderate negative potentials (−0.3 V RHE ), they dissolved over time at larger negative potentials (−0.4 and −0.5 V RHE ). Operando Raman spectra collected during the reaction showed that under an applied potential, the oxide particles reduced to metallic bismuth, thereby confirming the metal as the working phase for producing formate. These results inform us about the working morphology of these electrocatalysts and their formation and degradation mechanisms.

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“…[24][25][26] In contrast, bismuth (Bi) is renowned for its excellent formate selectivity, low toxicity, and cost-effectiveness compared to pricier alternatives like Sn and In. 13,[27][28][29][30][31] Nevertheless, certain key issues persist, including low current density and poor catalytic stability arising from its chemically unstable and proneto-agglomeration nature. 32 To address these issues, a crucial strategy involves immobilizing Bi on the support material to enhance stability and regulate spatial distribution.…”

Section: Introductionmentioning

confidence: 99%

Graphene quantum dot-mediated anchoring of highly dispersed bismuth nanoparticles on porous graphene for enhanced electrocatalytic CO₂reduction to formate

Cheng,

Yang,

Xia

et al. 2024

Nanoscale

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Recent advances of bismuth-based electrocatalysts for CO2 reduction: Strategies, mechanism and applications

Cited by 16 publications

References 201 publications

The Effect of Bismuth and Tin on Methane and Acetate Production in a Microbial Electrosynthesis Cell Fed with Carbon Dioxide

The Effect of Bismuth and Tin on Methane and Acetate Production in a Microbial Electrosynthesis Cell Fed with Carbon Dioxide

Revealing the Intrinsic Restructuring of Bi₂O₃ Nanoparticles into Bi Nanosheets during Electrochemical CO₂ Reduction

Graphene quantum dot-mediated anchoring of highly dispersed bismuth nanoparticles on porous graphene for enhanced electrocatalytic CO₂reduction to formate

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Recent advances of bismuth-based electrocatalysts for CO2 reduction: Strategies, mechanism and applications

Cited by 16 publications

References 201 publications

The Effect of Bismuth and Tin on Methane and Acetate Production in a Microbial Electrosynthesis Cell Fed with Carbon Dioxide

The Effect of Bismuth and Tin on Methane and Acetate Production in a Microbial Electrosynthesis Cell Fed with Carbon Dioxide

Revealing the Intrinsic Restructuring of Bi2O3 Nanoparticles into Bi Nanosheets during Electrochemical CO2 Reduction

Graphene quantum dot-mediated anchoring of highly dispersed bismuth nanoparticles on porous graphene for enhanced electrocatalytic CO2reduction to formate

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Product

Resources

About

Revealing the Intrinsic Restructuring of Bi₂O₃ Nanoparticles into Bi Nanosheets during Electrochemical CO₂ Reduction

Graphene quantum dot-mediated anchoring of highly dispersed bismuth nanoparticles on porous graphene for enhanced electrocatalytic CO₂reduction to formate