Burning coal to generate electricity is one of the key sources of atmospheric carbon dioxide emissions; so, targeting coal-fired power plants offers one of the easiest ways of reducing global carbon emissions. Given that the world's largest economies all rely heavily on coal for electricity production, eliminating coal combustion is not an option. Indeed, coal consumption is likely to increase over the next 20-30 years. However, the introduction of more efficient steam cycles will improve the emission performance of these plants over the short term. To achieve a reduction in carbon emissions from coal-fired plant, however, it will be necessary to develop and introduce carbon capture and sequestration technologies. Given adequate investment, these technologies should be capable of commercial development by ca 2020.
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http://dx.doi.org/10.1098/rsta.2008.0113 | DOI Listing |
Research (Wash D C)
January 2024
School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
The electrocatalytic carbon dioxide reduction reaction (CORR) at industrial-level current densities provides a sustainable approach to converting CO into value-added fuels and feedstocks using renewable electricity. However, the CORR conducted typically in alkaline and neutral electrolytes encounters some challenges due to the inevitable reaction between CO and OH ions, which undermines CO utilization and leads to poor operational stability. Acidic media present a viable alternative by reducing (bi)carbonate production, thereby enhancing the carbon efficiency and stability in CORR.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
January 2025
Program in Biodiversity and Nature Conservation (UFJF), Institute of Biological Sciences (ICB), Federal University of Juiz de Fora (UFJF), University Campus, Martelos, Juiz de Fora, Minas Gerais, CEP, 36036-900, Brazil.
In 2020, the largest continuous wetland area on the planet, the Brazilian Pantanal, experienced an unprecedented fire that affected the entire ecosystem. Our goal was to elucidate the effects of ash presence following the fire events. We quantified the impact of ashes, collected in four Conservation Units, on soil, water, and atmosphere.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
UESTC: University of Electronic Science and Technology of China, School of Materials and Energy, Chengdu, Sichuan, 611731, Chengdu, CHINA.
The electrochemical reduction of carbon dioxide (CO2) to methane (CH4) presents a promising solution for mitigating CO2 emissions while producing valuable chemical feedstocks. Although single-atom catalysts have shown potential in selectively converting CO2 to CH4, their limited active sites often hinder the realization of high current densities, posing a selectivity-activity dilemma. In this study, we developed a single-atom cobalt (Co) doped copper catalyst (Co1Cu) that achieved a CH4 Faradaic efficiency exceeding 60% with a partial current density of -482.
View Article and Find Full Text PDFBioresour Technol
January 2025
Department of Biology, University of Padova, 35131 Padova, Italy. Electronic address:
The fermentation process in alcoholic beverage production converts sugars into ethanol and CO, releasing significant amounts of greenhouse gases. Here, Cupriavidus necator DSM 545 was grown autotrophically using gas derived from alcoholic fermentation, using a fed-batch bottle system. Nutrient starvation was applied to induce intracellular accumulation of poly(3-hydroxybutyrate) (PHB), a bioplastic polymer, for bioconversion of CO-rich waste gas into PHB.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea. Electronic address:
Kraft lignin (KL), a byproduct of the pulp and paper industry, is commonly combusted as a low-grade fuel. However, its high sulphur content results in the emission of sulphur oxides, which pose environmental hazards. This study explores a sustainable approach for the valorisation of waste KL into syngas via CO-mediated pyrolysis.
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