Results 171 to 180 of about 3,313,131 (376)

Enhanced Resolution in EPR Spectroscopy Using para‐Hydrogen Matrices

open access: yesAngewandte Chemie International Edition, EarlyView.
We demonstrate the advantageous properties of solid para‐hydrogen (p‐H2) matrices for electron paramagnetic resonance (EPR) spectroscopy by investigating the 2,2,6,6‐tetramethylpiperidinyloxyl (TEMPO) radical and an in situ generated P‐centered mono‐radical.
Adrián Portela‐González   +2 more
wiley   +1 more source

Filchner Ice Shelf cavity noble gas (helium and neon) measurements

open access: green, 2017
Oliver Huhn   +9 more
openalex   +1 more source

Analytical Investigation of TAR for Enhancing Performance Using Varied Stack configuration and Varied Working Fluid

open access: yesInternational Journal of Applied Mechanics and Engineering
Thermoacoustic cooling, which uses sound waves to transfer heat, is an environmentally friendly and simple alternative to conventional refrigeration. Gas mixture adjustment to improve cooling performance is understudied compared to pure gas use. Previous
Kamlesh S. Shelke   +3 more
doaj   +1 more source

Lipase‐Mediated Synthesis of Biodiesel Using Blended Alcohol in a Packed‐Bed Reactor System

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT The use of lipases in biodiesel production has gained attention as a more sustainable and efficient alternative to chemical catalysts, attributed to their operational reusability and minimal environmental impact. As an innovative approach in this study, a blended alcohol composed of 20 mol% methanol and 80 mol% 1‐butanol was employed as the ...
TingTing Zhao   +3 more
wiley   +1 more source

CO2 Adsorption on Mesoporous Silica Using Response Surface Methodology (RSM)

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The aim of the current study is to investigate the CO2 adsorption on the mesoporous silica. The adsorbent was characterized by XRD, TEM, SEM, and N2 adsorption desorption. The adsorption isotherms of carbon dioxide (CO2) on the silica were investigated using a static volumetric method at various temperatures.
Hedi Jedli   +4 more
wiley   +1 more source

Ultrafast Biodiesel Synthesis via K2CO3‐Supported Mg‐Al Hydrotalcite Catalyst With Tailored Basicity and Mesoporous Structure

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the increasing global energy demand and the growing prominence of environmental issues, biodiesel has garnered significant attention as a renewable, low‐emission green energy source. Conventional hydrotalcite‐based catalysts often suffer from insufficient basicity and limited accessibility of active sites, leading to relatively long ...
Jingdi Zheng   +4 more
wiley   +1 more source

Ensiling and Fermentation of Rice Hulls With Ruminal Fluid for Medium‐Chain Carboxylate Production

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Large quantities of rice hulls are common at milling sites in Nigeria. They are a by‐product of rice processing and can contribute to environmental degradation if not properly managed. In this study, rice hulls were pretreated by ensiling at ambient temperature and then used as substrate for medium‐chain carboxylates (MCCs) production ...
Jerome Undiandeye   +3 more
wiley   +1 more source

Innovative Approach to Hydrogen Purification: A Review on the Role of Metal Hydrides

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal hydrides, renowned for their unique hydrogen bonding capabilities, have emerged as pivotal materials in the energy sector, particularly for hydrogen storage and purification applications. Their ability to store hydrogen reversibly under moderate conditions has positioned them at the forefront in hydrogen‐based energy systems. This review
T. Mohammed Faheem   +4 more
wiley   +1 more source

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