Results 21 to 30 of about 413 (170)

Synthesis of Amides from Amines and Esters Under Hydrothermal Conditions. [PDF]

ChemistryOpen
In this study, we explore the amide synthesis under hydrothermal conditions, using amines and esters as the starting materials. Proposed major pathway starts with ester hydrolysis, followed by condensation between carboxylic acids and amines. The amide yield is dependent on the substrate structure, solution pH, and the presence of dissolved metal salts.
Brown PA, Aspin A, Yang Z.
europepmc   +2 more sources

Lifecycle assessment of alkaline dry cell oxyhydrogen (HHO) generators for two-wheeled vehicle engines

Frontiers in Energy Research
IntroductionThe increased use of fossil fuels in transportation raises many environmental concerns, including the greenhouse gas effect. Hydrogen, with its high energy density and sustainability, offers a cleaner alternative, reducing emissions and ...
M. B. D. K. Siriwardena, Gamunu Samarakoon, Nabin Aryal, A. R. Nihmiya, Udara S. P. R. Arachchige   +4 more
doaj   +2 more sources

A Study on the Performance of Catalysts for the Recombination of Oxyhydrogen Gas Generated in Secondary Battery

Journal of the Korean Electrochemical Society, 2014
Yong-Sik Kim, Min-Hwan Chang, Jeh-Beck Ju   +2 more
exaly   +3 more sources

Transformation of a Silicate Material for Carbon Negative Magnesia-Based Cement via Electrochemistry. [PDF]

Adv Sci (Weinh)
The transformation of a magnesium trisilicate material via water electrolysis into precursor phases necessary for magnesium‐based M‐S‐H cement is explored. The dissolution of the material mediated electrochemically is monitored, and the analysis of the resulting phases indicate their suitability as effective precursors for M‐S‐H cement.
Ramuglia AR, Scheel J, Köberle T, Henze K, Paasch S, Lima Duarte L, Kaskel S, Brunner E, Mechtcherine V, Matschei T, Weidinger IM, Liebscher M.   +11 more
europepmc   +2 more sources

In Situ X-ray Diffraction Studies on the Reduction of U₃O₈ by Various Reducing Agents. [PDF]

Chemistry
The reduction of U₃O₈ by hydrogen, PVDF, and CaH₂ is investigated using continuous in situ X‐ray diffraction. Phase transitions, oxygen loss, and intermediate structures are analyzed. The study elucidates how different reducing environments influence reaction pathways and final products, offering new insight into uranium oxide chemistry relevant to ...
Michak M, Ideker FC, Kohlmann H.
europepmc   +2 more sources

Deterministic Fabrication of Plasmonic Nanostructures on Optical Nanofibers via Blurred Electron Beam Deposition. [PDF]

Adv Sci (Weinh)
A nanofabrication method enabling the direct growth of plasmonic nanostructures are presented on suspended tapered optical nanofibers via Blurred Electron Beam Induced Deposition (BEBID). By defocusing the beam to reduce mechanical stress, BEBID achieves sub‐20 nm precision and structural control, enabling directional scattering and light–matter ...
Balena A, D'Amato M, Kashif MF, Ding C, Belzane L, De Marzo G, Le Jeannic H, De Vittorio M, Pisanello F, Bramati A.   +9 more
europepmc   +2 more sources

Using oxy-hydrogen gas to enhance efficacy and reduce emissions of diesel engine

Ain Shams Engineering Journal, 2023
The ever-increasing need for energy, along with diminishing petroleum supplies, has prompted the quest for renewable and sustainable alternative fuels.
Mohamed F. Al-Dawody, Khaled A. Al-Farhany, Shrok Allami, Kadhim K. Idan Al-Chlaihawi, Wasim Jamshed, Mohamed R. Eid, Aeshah A. Raezah, Ayesha Amjad, Sayed M. El Din   +8 more
doaj   +1 more source

Evaluation of the Potential Use of Oxy-Hydrogen Gas for the Treatment of Lactococcus garvieae Infected- Zebrafish in Hydrogen-Rich Water Aquarium [PDF]

Brazilian Archives of Biology and Technology, 2023
This study aimed to evaluate the use of an oxy-hydrogen generator for preparing hydrogen-rich water (HRW) and studying its effects on the L. garvieae- affected zebrafish.
Şükrü Önalan, Menekşe Bulut, Duried Alwazeer   +2 more
doaj   +1 more source

Impacts of HHO gas utilisation on the operating parameters in internal combustion engines

Research in Agricultural Engineering, 2022
Social pressure is forcing manufacturers to make huge investments in development in order to reduce the harmful emissions of passenger cars. However, there are also cheaper solutions that promise to reduce pollutants with minimal investment.
Petr Jindra, Martin Kotek
doaj   +1 more source

Hydrogen Transport and Evolution in Ni‐MH Batteries by Neutron Imaging

Angewandte Chemie International Edition, Volume 62, Issue 45, November 6, 2023., 2023
Non‐destructive and high‐resolution methods allowing the investigation of battery systems are provided by operando neutron imaging combined with electrical monitoring of the state of charge. We track the exchange and transport of hydrogen in the electrodes and the evolution of hydrogen gas under operating conditions of a commercial Ni‐mixed metal ...
Marin Nikolic, Alessia Cesarini, Emanuel Billeter, Fabian Weyand, Pavel Trtik, Markus Strobl, Andreas Borgschulte   +6 more
wiley   +1 more source