Electrochemical CO reduction reaction (CORR), which is driven by electricity generated from renewable energy sources, is a promising technology for sustainably producing carbon-based chemicals or fuels. Several CORR catalysts have been explored to date, among which copper-based electrocatalysts are the most widely known for electrochemical CORR and are extensively studied for their ability to generate an array of products. Their low selectivity, however, hinders their possibility of being used for practical purposes.
View Article and Find Full Text PDFFacile conversion of CO to commercially viable carbon feedstocks offer a unique way to adopt a net-zero carbon scenario. Synthetic CO-reducing catalysts have rarely exhibited energy-efficient and selective CO conversion. Here, the carbon monoxide dehydrogenase (CODH) enzyme blueprint is imitated by a molecular copper complex coordinated by redox-active ligands.
View Article and Find Full Text PDFThe presence of efficient energy storage and conversion technologies is essential for the future energy infrastructure. Here, we describe crafting a heterostructure composed of a suitably interlinked CeO and polycrystalline BiO dopant prepared on a reduced graphene oxide (Ce_BiO@rGO) surface. This material exhibits exceptional electrocatalytic hydrogen and oxygen evolution reaction in alkaline water (pH∼14.
View Article and Find Full Text PDF3-D modeling of coupled thermo-hydro-mechanical (THM) processes in enhanced geothermal systems using the control volume finite element code was done. In a first, a comparative analysis on the effects of coupled processes, operational parameters and reservoir parameters on heat extraction was conducted. We found that significant temperature drop and fluid overpressure occurred inside the reservoirs/fracture that affected the transport behavior of the fracture.
View Article and Find Full Text PDFOver the past decade, the United States has become a world leader in natural gas production, thanks in part to a large-fold increase in recovery from unconventional resources, i.e., shale rock and tight oil reservoirs.
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