Copper–Indium Binary Catalyst on a Gas Diffusion Electrode for High-Performance CO₂ Electrochemical Reduction with Record CO Production Efficiency

Abstract

Copper-indium binary catalyst on a gas diffusion electrode for high-performance CO2 electrochemical reduction with record CO production efficiency. ACS Applied Materials and Interfaces 12 (1) , pp.

Parameters influencing the development of highly conductive and efficient biofilm during microbial electrosynthesis: the importance of applied potential and inorganic carbon source

“…7.0 in both treatments. The near neutral catholyte pH in BES 2 (−1.0 V/NaHCO 3 ) throughout the experiment may have prevented strong enrichment of acetogenic bacteria and consequently led to lower production of acetate and longer chain organic compounds.…”

“…A range of approaches, including electrochemical methods, have been developed to reduce CO 2 to valuable chemicals 3 . Over the past few decades, metal catalysts such as copper have been commonly used for electrochemical reduction of CO 2 and have received lots of attention in this area 4 – 7 . Microbial electrosynthesis (MES) is a bio-electrochemical technique that has offered the sustainable conversion of CO 2 to valuable organic chemicals at the cathode of bio-electrochemical systems (BES), using microorganisms as biocatalysts 8 – 10 .…”

Towards the Large-Scale Electrochemical Reduction of Carbon Dioxide

“…Moreover, a further advantage is that the continuous flow reactor overcomes the low solubility of CO2 by using gaseous electrochemical reduction [14]. Thus, several papers have reported a current density of over 200 mA cm −2 when using the GDE [34][35][36]. Hence, the present section is focused on the device configuration and discusses the microfluidic cell, zero-gap electrolyzer, and multilayer electrolyzer stack that make commercialization possible.…”

Towards the Electrochemical Conversion of CO2 to Formic Acid at an Applicative Scale: Technical and Economic Analysis of Most Promising Routes

“…Five CSs, all based on ERCO 2 to FA/formate using Sn-based electrodes in aqueous electrolyte, reported in the literature and characterised by particularly good performances and by usage of relatively cheap materials and simple cell designs were selected. [15,17,18,20,30] Indeed, most of the investigated technologies in the literature were based on the usage of more expensive cathodes (including core-shell structured Cu 2 O/Cu@C immobilized on nitrogen-doped graphene sheets (Cu2O/Cu@C/ NG), [31] Bi 2 O 2 CO 3 nanosheets, [32] Sn(S)/Au nanoparticles, [33] BiÀ SnO/Cu foam, [34] SnCu alloys, [35] Ag x Sn y alloys, [36][37] In x Sn y alloys, [38,39] Sn x Pb y alloys, [40] Sn x Pb y Bi z alloys, [41] Cu x In y alloys, [42][43][44][45] Pd-, [46] PdPt- [47] or Bi-based catalyst, [48][49][50] etc.) or more complex reactor designs, which are more difficult to scale-up.…”

“…Furthermore, it was demonstrated that operating pressures up to 20 bar could be economically viable. [42] Also, Ramdin et al [30] have performed the ERCO 2 using a Sn plate cathode and HP system; however, they used a divided semi-continuous batch cell equipped with bipolar membranes (BPMs) driving the reaction at 30 mA cm À 2 with a FE of approximately 80 % (CS V). The remarkably discover of these researchers was a cheaper BMP that can maintain a different compartment pH between anodic and cathodic compartment at high P CO2 .…”