Abstract
To mitigate the excessively accumulated carbon dioxide (CO2) in the atmosphere and tackle the associated environmental
concerns, green and effective approaches are necessitated. The electrocatalytic CO2 reduction reaction (CO2RR) using
sustainable electricity under benign reaction conditions represents a viable way to produce value-added and profitable
chemicals. In this minireview, recent studies regarding unary Bi electrocatalysts and binary BiSn electrocatalysts are
symmetrically categorized and reviewed, as they disclose high faradic efficiencies toward the production of formate/formic
acid, which has a relatively higher value of up to 0.50 $kg-1 and been widely used in chemical and pharmaceutical industry.
Specifically, the preparation methodologies, electrocatalysts morphologies, catalytic performances and corresponding
mechanisms are comprehensively presented. The use of solid-state electrolytes showing high economic prospects for
directly obtaining high-purity formic acid are highlighted. Finally, the remaining questions and challenges for CO2RR
exploitations using Bi-related electrocatalysts are proposed, while perspectives and the corresponding strategies aiming to
enhance their entire catalytic functionalities and boost their performance are provided.
concerns, green and effective approaches are necessitated. The electrocatalytic CO2 reduction reaction (CO2RR) using
sustainable electricity under benign reaction conditions represents a viable way to produce value-added and profitable
chemicals. In this minireview, recent studies regarding unary Bi electrocatalysts and binary BiSn electrocatalysts are
symmetrically categorized and reviewed, as they disclose high faradic efficiencies toward the production of formate/formic
acid, which has a relatively higher value of up to 0.50 $kg-1 and been widely used in chemical and pharmaceutical industry.
Specifically, the preparation methodologies, electrocatalysts morphologies, catalytic performances and corresponding
mechanisms are comprehensively presented. The use of solid-state electrolytes showing high economic prospects for
directly obtaining high-purity formic acid are highlighted. Finally, the remaining questions and challenges for CO2RR
exploitations using Bi-related electrocatalysts are proposed, while perspectives and the corresponding strategies aiming to
enhance their entire catalytic functionalities and boost their performance are provided.
| Original language | English |
|---|---|
| Journal | Nanoscale |
| Publication status | Published - 2022 |
