Phys.org November 22, 2024 Liquid organic hydrogen carrier (LOHC) materials play a crucial role in hydrogen storage capacity, reaction kinetics, reaction temperature, and reversibility. However, the development and optimization of LOHC materials is limited due to the use of mass-produced materials for bulk hydrogen logistics. Researchers in the Republic of Korea proposed a molecular engineering approach to overcome the limitations of commercial dibenzyltoluene (DBT)-based LOHC systems which have superior physical properties, low price, and low toxicity. They used a new chemical structure, benzyl-methylbenzyl-benzene (BMB) to overcome the limitations of slow reaction kinetics and analyzed the dehydrogenation/hydrogenation pathways. They proposed a […]
Tag Archives: Chemicals transportation
Enormous cache of rare earth elements hidden inside coal ash waste, study suggests
Phys.org November 19, 2024 The renewable energy industry is heavily reliant on rare earth elements. A team of researchers in the US (UT Austin, University of Kentucky, University of Wyoming, industry) estimated coal ash resources and potential for extraction of rare earth elements using data for the US. According to the data ~ 52 gigatons (Gt) of coal was produced in the US (1950–2021). Power plants account for most of the coal use. About 70% of coal ash was potentially accessible for rare earth element extraction (1985–2021) and was disposed in landfills and ponds with the remaining coal ash was used […]