Results 21 to 30 of about 1,654,745 (247)

Can a fermentation gas mainly produced by rumen Isotrichidae ciliates be a potential source of biohydrogen and a fuel for a chemical fuel cell? [PDF]

, 2010
Bacteria, fungi and protozoa inhabiting the rumen – the largest chamber of the ruminants’ stomach, release large quantities of hydrogen during the fermentation of carbohydrates.
Miltko, Renata, Sikora, Anna, Grzesiuk, Elzbieta, Szewczyk, Krzysztof W., Piela, Piotr, Michałowski, Tadeusz, Sikora, Radosław   +6 more
core   +1 more source

Pt nanorods supported on Nb-doped ceria: A promising anode catalyst for polymer electrolyte fuel cells

Electrochemistry Communications
For polymer electrolyte fuel cells (PEFCs), platinum nanoparticles supported on carbon black (Pt/C) serve as the commonly used hydrogen anode catalyst, exhibiting high activity for the hydrogen oxidation reaction (HOR), while the carbon support is ...
Guoyu Shi, Tetsuro Tano, Donald A. Tryk, Akihiro Iiyama, Makoto Uchida, Katsuyoshi Kakinuma   +5 more
doaj   +1 more source

Hydrogen Storage Needs for Early Motive Fuel Cell Markets [PDF]

, 2012
The National Renewable Energy Laboratory's (NREL) objective for this project is to identify performance needs for onboard energy storage of early motive fuel cell markets by working with end users, manufacturers, and experts.
Caton, M., Simpson, L., Ainscough, C., Kurtz, J.   +3 more
core   +1 more source

INJECTION OF HYDROGEN INTO HIGH PRESSURE NATURAL GAS GRIDS: INVESTIGATION OF THE IMPACT ON MATERIALS AND EQUIPMENT AT RELEVANT ENVIRONMENT

, 2022
Publisher Copyright: © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.This work addresses the potential of hydrogen injection into the transmission high pressure natural gas grid as ...
Madina, Virginia, de Gracia, María Dolores Storch, Fernandez, Ekain, Cerezo-Alarcón, Alberto, Gil, Vanesa, Sánchez-Laínez, Javier   +5 more
core   +1 more source

The Development of Current Collection in Micro-Tubular Solid Oxide Fuel Cells—A Review

Applied Sciences, 2021
Micro-tubular solid oxide fuel cells (µT-SOFCs) are suited to a broad range of applications with power demands ranging from a few watts to several hundred watts. µT-SOFCs possess inherently favourable characteristics over alternate configurations such as
Oujen Hodjati-Pugh, Aman Dhir, Robert Steinberger-Wilckens   +2 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Evaluation of the Microstructure and the Electrochemical Properties of Ce_0.8(1−x)Gd_0.2(1−x)Cu_xO_{[1.9(1−x)+x]} Electrolytes for IT-SOFCs

Applied Sciences, 2020
The influence of copper addition (0.5–2 mol%) on the crystal structure, densification microstructure, and electrochemical properties of Ce0.8Gd0.2O1.9 synthesized in a one-step sol–gel combustion synthesis route has been studied.
Grazia Accardo, Jae Kwan Bae, Sung Pil Yoon   +2 more
doaj   +1 more source

Determination of the Activation Energy for Hydride Decomposition Using a Sieverts-Type Apparatus and the Kissinger Equation

Metals, 2022
We developed a method to determine the activation energy for hydride decomposition using a Sieverts-type apparatus and the Kissinger equation, not using thermal analysis methods.
Myoung-Youp Song, Young-Jun Kwak
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Three Methods for Application of Data from a Volumetric Method to the Kissinger Equation to Obtain Activation Energy

Micromachines, 2022
Thermal analysis methods have been used in many reports to determine the activation energy for hydride decomposition (dehydrogenation). In our preceding work, we showed that the dehydrogenation rate of Mg-5Ni samples obeyed the first-order law, and the ...
Myoung Youp Song, Young Jun Kwak
doaj   +1 more source