Results 21 to 30 of about 1,158,756 (302)

Deposition and transport of functionalized carbon nanotubes in water-saturated sand columns [PDF]

, 2012
Knowledge of the fate and transport of functionalized carbon nanotubes (CNTs) in porous media is crucial to understand their environmental impacts. In this study, laboratory column and modeling experiments were conducted to mechanistically compare the ...
Carpena, Rafael Munoz, Gao, Bin, Huang, Qingguo, Morales, Veronica L., Tian, Yuan, Wang, Yu, Yang, Liuyan   +6 more
core   +3 more sources

Subduction and Hydrogen Release: The Case of Bolivian Altiplano

Geosciences, 2023
Natural hydrogen is known to be generated in the crust by water/rock interactions, especially the oxidation of iron-rich rock or radiolysis. However, other sources, especially deeper ones, exist. In the context of subduction, the dehydration of the slab,
Isabelle Moretti, Patrice Baby, Paola Alvarez Zapata, Rosmar Villegas Mendoza   +3 more
doaj   +1 more source

Implications of Cation Interdiffusion between Double Perovskite Cathode and Proton-Conducting Electrolyte for Performance of Solid Oxide Fuel Cells

Energies, 2023
Chemical compatibility and cation interdiffusion between the double perovskite cobaltites RBaCo2O6−δ (R = Gd, Pr) and proton-conducting electrolyte BaZr0.8Y0.2O3−δ were studied.
Nadezhda S. Tsvetkova, Dmitry A. Malyshkin, Ivan L. Ivanov, Dmitry S. Tsvetkov, Andrey Yu. Zuev   +4 more
doaj   +1 more source

Determination of Gas Permeation Properties in Polymer Using Capacitive Electrode Sensors

Sensors, 2022
The objective of this work was to develop an effective technique for characterizing the permeation properties of various gases, including H2, He, N2, and Ar, that are absorbed in polymers. Simultaneous three-channel real-time techniques for measuring the
Jaekap Jung, Gyunghyun Kim, Gahyoun Gim, Changyoung Park, Jihun Lee   +4 more
doaj   +1 more source

Hydrogen-bonded multilayer thin films and capsules based on poly(2-n-propyl-2-oxazoline) and tannic acid : investigation on intermolecular forces, stability, and permeability [PDF]

, 2019
In recent years, hydrogen-bonded multilayer thin films and capsules based on neutral and nontoxic building blocks have been receiving interest for the design of stimuli-responsive drug delivery systems and for the preparation of thin-film coatings ...
Hoogenboom, Richard, Mathivanan, Nirmal, Paramasivam, Gokul, Rajendran, Jayakumar, Sundaramurthy, Anandhakumar, Vergaelen, Maarten   +5 more
core   +1 more source

Sonoactivated polycrystalline Ni electrodes for alkaline oxygen evolution reaction

Ultrasonics Sonochemistry, 2022
The development of cost-effective and active water-splitting electrocatalysts is an essential step toward the realization of sustainable energy. Its success requires an intensive improvement in the kinetics of the anodic half-reaction of the oxygen ...
Faranak Foroughi, Alaa Y. Faid, Svein Sunde, Bruno G. Pollet   +3 more
doaj   +1 more source

An International Review of Hydrogen Technology and Policy Developments, with a Focus on Wind- and Nuclear Power-Produced Hydrogen and Natural Hydrogen

Energies
The potential for hydrogen to reshape energy systems has been recognized for over a century. Yet, as decarbonization priorities have sharpened in many regions, three distinct frontier areas are critical to consider: hydrogen produced from wind; hydrogen ...
Kathleen Araújo, Edward Potter, Anna Kouts, Oliver Newman, Max Milarvie, Fred Carcas, Cassie Koerner, Jacob Placido   +7 more
doaj   +1 more source

Origin, discovery, exploration and development status and prospect of global natural hydrogen under the background of “carbon neutrality”

China Geology, 2022
Global energy structure is experiencing the third transition from fossil energy to non-fossil energy, to solve future energy problems, cope with climate change, and achieve net-zero emissions targets by 2050.
Qian-ning Tian, Shu-qing Yao, Ming-juan Shao, Wei Zhang, Hai-hua Wang   +4 more
doaj   +1 more source

Modeling the pulsed neutron response for natural hydrogen detection

Frontiers in Earth Science
Hydrogen gas is a promising clean-energy vector that can alleviate the current imbalance between energy supply and demand, diversify the energy portfolio, and underpin the sustainable development of oil and gas resources. This study pinpoints the factors
Xi Xili, Chen Qian, Zhang Feng
doaj   +1 more source

The quantum nature of hydrogen

International Reviews in Physical Chemistry, 2019
Hydrogen is the most abundant element in the universe. It is also the lightest and as such the most quantum of the elements, in the sense that quantum tunnelling, quantum delocalisation, and zero-point motion can be important. For practical reasons most computer simulations of materials have not taken such effects into account, rather they have treated
Fang, W, Chen, J, Feng, Y, Li, X-Z, Michaelides, A   +4 more
openaire   +3 more sources