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Selectivity control by zeolites during methanol-mediated CO hydrogenation processes.
Chem Soc Rev
January 2025
Interdisciplinary Institute of NMR and Molecular Sciences, School of Chemistry and Chemical Engineering, The State Key Laboratory of Refractories and Metallurgy, Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China.
The thermocatalytic conversion of CO with green or blue hydrogen into valuable energy and commodity chemicals such as alcohols, olefins, and aromatics emerges as one of the most promising strategies for mitigating global warming concerns in the future. This process can follow either a CO-modified Fischer-Tropsch synthesis route or a methanol-mediated route, with the latter being favored for its high product selectivity beyond the Anderson-Schulz-Flory distribution. Despite the progress of the CO-led methanol-mediated route over bifunctional metal/zeolite catalysts, challenges persist in developing catalysts with both high activity and selectivity due to the complexity of CO hydrogenation reaction networks and the difficulty in controlling C-O bond activation and C-C bond coupling on multiple active sites within zeolites.
View Article and Find Full Text PDFPro-inflammatory effects of inhaled Great Salt Lake dust particles.
Part Fibre Toxicol
January 2025
Department of Pharmacology and Toxicology, Center for Human Toxicology, University of Utah, 30 S. 2000 E., Room 201 Skaggs Hall, Salt Lake City, UT, 84112, USA.
Background: Climate change and human activities have caused the drying of marine environments around the world. An example is the Great Salt Lake in Utah, USA which is at a near record low water level. Adverse health effects have been associated with exposure to windblown dust originating from dried lakebed sediments, but mechanistic studies evaluating the health effects of these dusts are limited.
View Article and Find Full Text PDFFrom policy to progress: Environmental taxation to mitigate air pollution in OECD countries.
J Environ Manage
January 2025
Logistikum, University of Applied Sciences Upper Austria, 4400, Steyr, Austria; Supply Chain Intelligence Institute Austria, Vienna, Austria; Faculty of Business & Entrepreneurship, Daffodil International University, Daffodil Smart City, Ashulia, Dhaka, Bangladesh. Electronic address:
Environmental taxes play a critical role in mitigating air pollution and fostering sustainability by internalizing the social costs of environmental damage. By imposing financial disincentives on polluters, these taxes encourage cleaner practices and technological innovation. Using panel ARDL models, this study examines the impact of environmental taxes on CO₂ emissions across 38 OECD countries, accounting for cross-sectional dependence, non-stationarity, and heterogeneity.
View Article and Find Full Text PDFFirst-principles study of CO and HO adsorption on the anatase TiO(101) surface: effect of Au doping.
Phys Chem Chem Phys
January 2025
Shanxi Coal International Energy Group Co., Ltd., Taiyuan 030000, China.
Photocatalytic reduction of CO will play a major role in future energy and environmental crisis. To investigate the adsorption mechanisms of CO and HO molecules involved in the catalytic process on the surface of anatase titanium dioxide 101 (TiO(101)) and the influence of Au atom doping on their adsorption, first-principles density functional theory calculations were used. The results show that 1.
View Article and Find Full Text PDFStudy on the synergistic hydration mechanism of granulated blast furnace slag-carbide slag-based cementitious materials and the properties of full-solid waste backfill materials.
Sci Rep
January 2025
College of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China.
The synergistic utilization of multiple solid waste is an effective means of achieving green filling and resource utilization of solid waste in mines. In this paper, the synergistic effects of solid waste granulated blast furnace slag (GS) and carbide slag (CS) as cementitious materials (GCCM) are investigated, along with their preliminary feasibility in combination with coal gangue (CG) and furnace bottom slag (FBS) for the preparation of backfill materials. The synergistic hydration mechanism, mechanical properties, working performance of GCCM and GBC were studied, and the environmental impact and cost-effectiveness of GBC were evaluated.
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