Results 81 to 90 of about 11,919,933 (393)
Amine-assisted two-step CO2 hydrogenation is an efficient route for methanol production. To maximize the overall catalytic performance, both the N-formylation of amine with CO2 (i.e., first step) and the subsequent amide hydrogenation (i.e., second step)
Desheng Su+10 more
doaj +1 more source
Electricity biogeneration using microbial fuel cells approach [PDF]
Renewable energies are very important because they released clean gasses to the atmosphere. Hence, polluted air and water can be prevented by using renewable energy sources to generate power.
Razali, Halimatus Saadiah+3 more
core
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng+14 more
wiley +1 more source
Fuel cells : state of the art [PDF]
Publication CIMNEThis report pretends to explain the state of the art of fuel cells and the applications focused on aviation, such as unmanned aerial vehicles (UAV).
Jarauta Arabí, Àlex, Pons Prats, Jordi
core +1 more source
Tato bakalářská práce se zabývá technologii palivových článků, jejich principem a rozdělením. Také je zde uveden postup pro získání vodíku ze zemního plynu jako paliva. Dále jsou zde uvedeny výhody a nevýhody palivových článků.
Ralbovský, Peter
core +1 more source
Print‐and‐Plate Architected Electrodes for Electrochemical Transformations Under Flow
Typical flow cell electrodes are composed of stochastic porous carbon, limiting understanding of electrode structure‐performance relationships. This work describes an approach, termed “print‐and‐plate,” to prepare porous electrodes by direct ink writing followed by conformal metal coating.
Dylan M. Barber+12 more
wiley +1 more source
Radiation grafted membranes [PDF]
The development of proton-exchange membranes for fuel cells has generated global interest in order to have a potential source of power for stationary and portable applications.
Alkan Gursel, Selmiye+5 more
core +1 more source
Flexible Leaf‐Like Fuel Cell From Plasmonic Janus Nanosheet
A flexible leaf‐like fuel cell is fabricated by conductive gold nanowire sponge‐supported plasmonic Janus nanosheet, which can generate a power of 8.93 mW cm⁻2 with less than 10% performance deterioration even being bent or twisted. Further assembly in a tree‐like layout demonstrates omnidirectional light harvesting capability and wind resistance ...
Yifeng Huang+3 more
wiley +1 more source
Regenerative Hydrogen-oxygen Fuel Cell-electrolyzer Systems for Orbital Energy Storage [PDF]
Fuel cells have found application in space since Gemini. Over the years technology advances have been factored into the mainstream hardware programs. Performance levels and service lives have been gradually improving.
Sheibley, D. W.
core +1 more source
Faradaic charging with bromine redox chemistry shows promise for energy storage, yet its efficient use in aqueous electrolytes is hindered by water decomposition and polybromides' cross‐diffusion, leading to suboptimal cell performance. This study introduces a tetrabutylammonium bromide‐based hydrated deep eutectic electrolyte with optimized water ...
Tae Pyeong Eom+4 more
wiley +1 more source