Scalable CO2-to-oxygenate production

Abstract

Most electrochemical CO 2 reduction research has been confined to fundamental studies that attempt to understand how to overcome low selectivity and energy efficiency for valuable oxygenated products. Now, a modular, scalable system generates multi-carbon oxygenates with a potential solar-to-alcohol efficiency of more than 8%.

Boosting CO2 electroreduction towards C2+ products via CO* intermediate manipulation on copper-based catalysts

“…5 Accordingly, as a promising utilization approach, the electrochemical conversion of the greenhouse gas CO 2 into valuable energy products or chemical raw materials effectively solves the CO 2 -caused environmental problems and provides a solution for the future energy crisis and resource depletion. [6][7][8] In the past few decades, the electrochemical reduction of CO 2 (ECO 2 RR) has made significant advances in producing various products, such as CO, [9][10][11][12][13][14][15] HCCOH, [16][17][18] CH 4 , [19][20][21] C 2 H 4 , [22][23][24] and C 2 H 5 OH. [25][26][27] However, instead of C 1 products, the production of multicarbon products (C 2+ ), with a higher energy density, chemical value and broader application, is much more attractive via ECO 2 RR.…”

Photocatalytic CO2 Conversion of M0.33WO3 Directly from the Air with High Selectivity: Insight into Full Spectrum-Induced Reaction Mechanism

“…The dramatically boosting concentration of CO 2 in the atmosphere seriously destructs the natural carbon balance, aggravates global warming, and becomes a worldwide challenge and urgent issue. , Inspired by the nature photosynthesis, photocatalytic reduction of CO 2 has been considered as one of the ideal solutions to address this issue because it can not only reduce the CO 2 concentration in an environmentally friendly manner but also enable one to convert CO 2 into renewable resources. − For widespread application of artificial photosynthesis, there are still some challenges to overcome. Many CO 2 reduction systems demand relatively complicated reaction conditions. − Generally, high concentrations of CO 2 or special CO 2 -capturing devices are required, because the low concentration of CO 2 makes it very difficult to be effectively adsorbed and activated on the surface of most photocatalysts, − and the anaerobic atmosphere is requisite to prevent the adverse oxidation reaction from happening. − In addition, the irradiation sources for photocatalytic carbon dioxide reduction (PCR) are usually ultraviolet (UV) and visible lights, , while near-infrared (NIR) light is rarely utilized, which accounts for ca.…”

Recent Progress in Plasmonic Hybrid Photocatalysis for CO2 Photoreduction and C–C Coupling Reactions

“…Subsequently, the photocatalytic approach was proposed, which was traced back to the 1970s [11][12][13][14]. Inspired by photosynthesis, solar-driven reduction of CO 2 has been considered as one of several possible solutions because it is renewable and eco-friendly energy that can reduce CO 2 concentration [12,[15][16][17]. The general concept of a CO 2 reduction process in the photocatalytic system is shown in Figure 1a.…”