New insights into the electrochemical conversion of CO2 to oxalate at stainless steel 304L cathode

Suppressing carboxylate nucleophilicity with inorganic salts enables selective electrocarboxylation without sacrificial anodes

“…[24][25][26] These anions can form insoluble salts with the cation from the sacricial anode, leading to cathodic passivation, increased cell voltage and resistive heating, and eventual stoppage of the electrochemical reaction. [27][28][29][30] Given the sustainability and operability drawbacks of using sacricial anodes, numerous strategies have been developed to avoid their use. 17,31 All of these strategies rely on alternative oxidation chemistries including oxidation of oxalate, 32,33 trimethylamine, 34 acetonitrile (MeCN), 35 N,N-dimethylformamide (DMF), 36 halides, [37][38][39] water, 40,41 H 2 , 42 conjugated dienes, 43 and alcohols.…”

An overview of CO2 capture and utilization in energy models

“…Table 1 indicates in the fifth column whether the model is BU or TD. (Assoumou, 2006) BU models are characterized by their high level of technological detail (Assoumou et al, 2018;Subramanian et al, 2020). The models' rich representation of the energy system enables the modelers to describe any process in a complete way, including energy, material and pollutant flows, and the economic and financial properties related to an investment, including capital costs, operation costs, lifetime, discount rate, etc.…”

“…These data are most often extracted from existing techno-economic studies (Algehed et al, 2009), which explains the high diversity of inputs from one model to another. Such a need for an extensive database constitutes a major drawback for BU models (Subramanian et al, 2020). Figure 3 gives a generic example of what a CCU supply chain resembles in BU models, as one can find in the BU references in Table 1.…”

“…Figure3: CCU generic modeling under BU frame inspired by(Subramanian et al, 2020) One characteristic of BU models is that they consider a large array of techno-economic properties and constraints for any technology bricks or processes, which are here embodied in the rectangles and squares. These include pure economic ones (orange box), technical ones (red box) and environmental ones (green box)…”

Bismuth Oxychloride Dispersed on Nitrogen‐Doped Carbon as Catalyst for the Electrochemical Reduction of CO2 to Formate

“…A catalyst here plays a vital role not just by reducing the activation energy barrier of CO 2 electroreduction but by also affecting the selectivity, activity and stability of the reaction . Most of the research has thus focused on the design of electrocatalytic materials for the selective conversion to various products such as CO, formic acid, methanol, ethanol, hydrocarbons and oxalic acid . Majority of the studies have been done in aqueous electrolytes for producing products like carbon monoxide which is used in syngas, hydrocarbons such as methane and multicarbon products such as ethylene and ethanol .…”