Ampere-level CO₂reduction to multicarbon products over a copper gas penetration electrode

Abstract

Renewable energy-driven electrochemical CO2 conversion to value-added chemicals is a prospective strategy for addressing both carbon emission and energy consumption. Although considerable progress has been made in CO2 electroreduction, sustained...

Modulating the Cu2O Photoelectrode/Electrolyte Interface with Bilayer Surfactant Simulating Cell Membranes for Boosting Photoelectrochemical CO2 Reduction

“…The CO 2 RR is a typical gas-phase reaction that requires efficient capture and activation of CO 2 molecules to produce valuable chemicals . To achieve this, an effective photoelectrode should possess specific catalytically active sites for CO 2 reduction products and promote the diffusion of CO 2 molecules. , Several strategies, such as morphology manipulation, , particle size tuning, , and formation of multimetallic alloys, , have been implemented to improve the CO 2 reduction selectivity and suppress the competing HER. In addition to the catalyst itself, the properties of the photoelectrode/electrolyte interface are also critical to enhance the CO 2 reduction activity of the photoelectrode.…”

Phosphate-Derived Copper-Based Catalysts for Efficient CO2 Reduction to Multicarbon Products

“…It is believed that there are mainly two reaction routes for C 2+ production: activated CO 2 on the catalyst surface is first converted into absorbed CO, and then two *CO intermediates would form *COCHO and following *CHOCHO or form *COCOH and following *CHCOH. 56,57 In this work, the use of Cu-based catalysts with different oxidation states is intended to indicate the applicability of the in situ reconstruction method of first phosphate buffer treatment and then electroreduction to obtain phosphatederived copper catalysts. All Cu-based catalysts experienced a similar reconstruction process, indicating that the Cu-based catalysts could react with the phosphate buffer to form copper phosphate nanosheets and then back into highly dispersed Cu nanoparticles, regardless of what the original oxidation state of Cu, and all exhibited the promoted CO 2 ERR performances toward C 2+ productions.…”

Cu-based catalyst designs in CO2electroreduction: precise modulation of reaction intermediates for high-value chemical generation

“…8a) conrmed a signicant enhancement in the adsorption of *CO on the Cu(100) facet, enabling efficient C-C coupling and yielding a remarkable selectivity of 62.8% towards C 2+ products at an ultra-high current of 2.3 A cm −2 , surpassing that of existing Cu-based catalysts. 168 Several recent studies have reported the enhanced adsorption of *CO on Cu(100) and Cu(110) crystalline surfaces. [169][170][171] The synergistic effect of different crystalline sites is worth considering to modulate the behaviour of reaction intermediates.…”