The p‐Orbital Delocalization of Main‐Group Metals to Boost CO<sub>2</sub> Electroreduction

He, Sisi; Ni, Fenglou; Ji, Yujin; Wang, Lie; Wen, Yunzhou; Bai, Haipeng; Liu, Gejun; Zhang, Ye; Li, Youyong; Zhang, Bo; Peng, Huisheng

doi:10.1002/ange.201810538

Cited by 60 publications

(35 citation statements)

References 46 publications

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“…lectrochemical reduction reaction of CO 2 (CO2RR) to useful products provides one practical way to deal with the urgent problems of global warming and energy crises 1,2 . Substantial effort has been devoted to searching for catalysts for such process to produce valuable products 3 , such as formic acid (HCOOH) or formate (HCOO − ) [4][5][6] .…”

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confidence: 99%

Bismuthene for highly efficient carbon dioxide electroreduction reaction

et al. 2020

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Bismuth (Bi) has been known as a highly efficient electrocatalyst for CO 2 reduction reaction. Stable free-standing two-dimensional Bi monolayer (Bismuthene) structures have been predicted theoretically, but never realized experimentally. Here, we show the first simple large-scale synthesis of free-standing Bismuthene, to our knowledge, and demonstrate its high electrocatalytic efficiency for formate (HCOO −) formation from CO 2 reduction reaction. The catalytic performance is evident by the high Faradaic efficiency (99% at −580 mV vs. Reversible Hydrogen Electrode (RHE)), small onset overpotential (<90 mV) and high durability (no performance decay after 75 h and annealing at 400°C). Density functional theory calculations show the structure-sensitivity of the CO 2 reduction reaction over Bismuthene and thicker nanosheets, suggesting that selective formation of HCOO − indeed can proceed easily on Bismuthene (111) facet due to the unique compressive strain. This work paves the way for the extensive experimental investigation of Bismuthene in many different fields.

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Bismuthene for highly efficient carbon dioxide electroreduction reaction

et al. 2020

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“…(See Figure (d)). This difference is probably due to the reduction of BiOCl (Bi 3+ ) to metallic bismuth (Bi°) after the reduction reaction as reported earlier where it was also found that leached Cl − ions had no influence on the performance . It is thus clearly evident that the Bi (001) facets present in BiOCl is responsible for the reduction of CO 2 to formate.…”

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confidence: 99%

Bismuth Oxychloride Dispersed on Nitrogen‐Doped Carbon as Catalyst for the Electrochemical Reduction of CO₂ to Formate

et al. 2020

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Electrochemical reduction of CO 2 has received significant interest for converting CO 2 to value added products and closing the carbon cycle. Recent advances through catalyst development have aided in satisfying the requirements of achieving a high product selectivity, activity and long-term stability. Among various industrially valuable products, formic acid has found numerous applications such asin fuel cells and textile industry. In this work, we report the synthesis of bismuth oxychloride dispersed on nitrogen-doped carbon through a facile ion adsorption process using bismuth acetate, hydrochloric acid and urea as precursors, and discuss its performance as an electrocatalyst for the electrochemical reduction of CO 2 to formate. The results show that bismuth oxychloride dispersed on nitrogen-doped carbon has good catalytic activity for CO 2 reduction to formate in 0.5 M KHCO 3 , achieving a maximum faradaic efficiency of 84.3 % at À 0.87 V versus RHE. The catalyst is found to be stable for 5 h of continuous operation and achieves a turnover frequency of 146.36 h À 1 .[a] S.

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“…2 [13,14]. More recently, the high electrocatalytic activity of bismuth for CO 2 reduction has attracted a lot of attention [15][16][17]. It highly promotes the formation of CO or formate depending on the nature of the electrolytic medium.…”

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confidence: 99%

New porous bismuth electrode material with high surface area

Abdallah

Derghane

Lou

et al. 2019

Journal of Electroanalytical Chemistry

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Bismuth electrodes are particularly interesting owing to their high hydrogen evolution overpotential and electrocatalytic activity. In this work, a novel porous bismuth electrode was prepared via an electrochemical deposition of bismuth on a porous graphite felt of high specific surface area, employing bismuth(III) oxide as reactant and a flow electrochemical cell as reactor. A solubility up to 1 mol L-1 of bismuth was obtained in basic medium using a suitable complexing agent. We solved the problems linked to the heterogeneous potential distribution in the 3D porous structure and to the formation of dendritic excrescences that led to mechanically fragile material by using a suitable flow electrochemical cell, a periodically changing current with short on-pulses and long off-pulses and by limiting the electrodeposition of Bi on the external surfaces of the felt due to diffusion. A Bi-modified electrode with high specific surface area and low bulk density was achieved using this method.

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The p‐Orbital Delocalization of Main‐Group Metals to Boost CO₂ Electroreduction

Cited by 60 publications

References 46 publications

Bismuthene for highly efficient carbon dioxide electroreduction reaction

Bismuthene for highly efficient carbon dioxide electroreduction reaction

Bismuth Oxychloride Dispersed on Nitrogen‐Doped Carbon as Catalyst for the Electrochemical Reduction of CO₂ to Formate

New porous bismuth electrode material with high surface area

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The p‐Orbital Delocalization of Main‐Group Metals to Boost CO2 Electroreduction

Cited by 60 publications

References 46 publications

Bismuthene for highly efficient carbon dioxide electroreduction reaction

Bismuthene for highly efficient carbon dioxide electroreduction reaction

Bismuth Oxychloride Dispersed on Nitrogen‐Doped Carbon as Catalyst for the Electrochemical Reduction of CO2 to Formate

New porous bismuth electrode material with high surface area

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Product

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The p‐Orbital Delocalization of Main‐Group Metals to Boost CO₂ Electroreduction

Bismuth Oxychloride Dispersed on Nitrogen‐Doped Carbon as Catalyst for the Electrochemical Reduction of CO₂ to Formate