نتایج جستجو برای: clean hydrogen
تعداد نتایج: 176961 فیلتر نتایج به سال:
Hydrogen is a valuable gas as a clean energy source and as feedstock for some industries. Therefore, demand on hydrogen production has increased considerably in recent years. Electrolysis of water, steam reforming of hydrocarbons and auto-thermal processes are well-known methods for hydrogen gas production, but not cost-effective due to high energy requirements. Biological production of hydroge...
Over the past fifty years, there has been a sharp surge in search for clean, high-energy fuels. Fossil fuels, which are primary source of energy, release harmful air pollutants into environment posing substantial pollution issue. Compared to fossil hydrogen gas is clean and having high heating value. Hydrogen thought be main energy carrier future can utilised fuel cells produce electricity. The...
Climate change primarily caused by the greenhouse gases emitted as a result of consumption carbon-based fossil fuels is considered one biggest challenges that humanity has ever faced. Moreover, Ukrainian crisis in 2022 complicated global energy and food status quo more than ever. The permanency this multifaceted fragility implies need for increased efforts to have independence requires long-ter...
The production of hydrogen (as a clean energy carrier that could replace fossil fuels) nowadays attracts much attention because of environmental pollution and energy demands1–3. Recently, hydrogen evolution technologies, such as production by steam reforming4, electrolysis5, degradation of organic pollutants in wastewater6, and photoelectrochemical splitting of water7 have been investigated. Am...
In addressing the global demand for clean and renewable energy, hydrogen stands out as the most suitable candidate for many fuel applications that require practical and efficient storage of hydrogen. Supplementary to the traditional hydrogen storage methods and materials, the high-pressure technique has emerged as a novel and unique approach to developing new potential hydrogen storage material...
the reaction of 3-chloropropyl boehmite nanoparticles with caffeine and sulfuric acid afforded bnps-3-propyl-imidazolopyridinium hydrogen sulfate [bnps-caff]hso4 as a new bnps-supported ionic liquid (il) catalyst. [bnps-caff]hso4 proved to be an efficient heterogeneous catalyst for the synthesis of pyrazolopyranopyrimidines via a one-pot four-component reaction of hydrazine hydrate, ethyl aceto...
*Correspondence: J. N. Chung, Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA e-mail: [email protected] Two concept systems that are based on the thermochemical process of high temperature steam gasification of lignocellulosic biomass and municipal solid waste are introduced.The primary objectives of the concept systems are (1) to develop the ...
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