Metal‐Based Aerogels Catalysts for Electrocatalytic CO₂ Reduction

Abstract

General strategies for metal aerogel synthesis, including single-metal, transition-metal doped, multi-metaldoped, and nano-metal-doped carbon aerogel are described. In addition, the latest applications of several of the abovementioned metal aerogels in electrocatalytic CO 2 reduction are discussed. Finally, considering the possibility of future applications of electrocatalytic CO 2 reduction technology, a vision for industrialization and directions that can be optimized are proposed.According to the available studies, copper is the only recognized multiphase catalyst for electrocatalytic CO 2 reduction to generate various hydrocarbons and their oxides, such as ethanol and ethylene. [61] Therefore, this review explores the mechanism of CO 2 reduction by electrocatalytic reduction of CO 2 on the surface of copper-based catalysts. On the basis of coordination chemistry, the reduction process of CO 2 is controlled by several steps. These steps include the transfer of two, six, eight and twelve electrons, corresponding to the common products CO, CH 3 OH, CH 4 , C 2 H 4 and C 2 H 5 OH (Table 1). [62][63][64][65] Electrocatalytic CO 2 reduction reactions usually [a] Y.

Recent advances in carbon-supported non-precious metal single-atom catalysts for energy conversion electrocatalysis

“…Consequently, exploring ways to convert CO 2 to fuels or other value-added chemicals is critical to mitigating the above problems. Electrochemical CO 2 RR has been regarded as one of the most attractive strategies thanks to its multiple advantages such as ease of operation, mild operating conditions, and tunable products [171][172][173][174]. So far, the development of efficient and stable catalysts remains at the heart of current research.…”

A perspective on graphene based aerogels and their environmental applications

“…silica and aluminum, gold, silver, copper, titanium, zinc, nickel, cobalt, etc [30]. Metal-based aerogels [31,32] are of fundamental importance for their excellent electrical conduction properties.…”

Cu-based catalyst designs in CO2 electroreduction: precise modulation of reaction intermediates for high-value chemical generation

“…5–7 Consequently, the scientific community has set its sights on reducing CO 2 emissions and transforming excessive CO 2 into high-value chemicals. 8–17 Over the past few decades, scientists have diligently pursued the development of advanced technologies that enable the environmentally friendly conversion of CO 2 into valuable chemical products. 18–28 With the utilization of renewable energy sources, ECR has emerged as a promising avenue for converting CO 2 into value-added multi-carbon products, facilitating the attainment of carbon neutrality (Fig.…”

“…[5][6][7] Consequently, the scientic community has set its sights on reducing CO 2 emissions and transforming excessive CO 2 into high-value chemicals. [8][9][10][11][12][13][14][15][16][17] Over the past few decades, scientists have diligently pursued the development of advanced technologies that enable the environmentally friendly conversion of CO 2 into…”