Results 21 to 30 of about 198,565 (207)

Activity of Patents in Fuel Cells and Hydrogen Production in the Context of Passenger Car Fleet in the V4 Countries

open access: yesStudies in Logic, Grammar and Rhetoric, 2022
The hydrogen market in the world today is capable ovule and empirical evidence on activity of patents in fuel cells and hydrogen production is limited so far.
Pangsy-Kania Sylwia   +3 more
doaj   +1 more source

In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts

open access: yesNature Communications, 2016
Fe-N/C catalysts show surprising activity towards oxygen reduction in fuel cells. However, there is significant uncertainty as to the structure of the active site.
Daniel Malko   +2 more
doaj   +1 more source

Comparative Life Cycle Assessment of Propulsion Systems for Heavy-Duty Transport Applications

open access: yesEnergies, 2021
To meet climate change challenges, the UK government is aiming to reach zero emissions by 2050. The heavy-duty transportation sector contributes 17% to the UKs total emissions, so to combat this, alternative power units to traditional fossil fuel-reliant
Sam Simons, Ulugbek Azimov
doaj   +1 more source

Hydrogen Evolution on Hydrophobic Aligned Carbon Nanotube Arrays [PDF]

open access: yes, 2009
We investigate for the first time hydrophobic carbon nanotube-based electrochemical cells as an alternative solution to hydrogen sorting. We show that the electrically conducting surface of the nanotube arrays can be used as a cathode for hydrogen ...
Daraio, Chiara   +2 more
core   +1 more source

Multi-functional anodes boost the transient power and durability of proton exchange membrane fuel cells. [PDF]

open access: yes, 2020
Proton exchange membrane fuel cells have been regarded as the most promising candidate for fuel cell vehicles and tools. Their broader adaption, however, has been impeded by cost and lifetime.
Cai, Mei   +14 more
core  

Alcohol Fuel Cells at Optimal Temperatures [PDF]

open access: yes, 2006
High-power-density alcohol fuel cells can relieve many of the daunting challenges facing a hydrogen energy economy. Here, such fuel cells are achieved using CsH2PO4 as the electrolyte and integrating into the anode chamber a Cu-ZnO/Al2O3 methanol steam ...
Boysen, Dane A.   +3 more
core   +1 more source

Electricity powering combustion: hydrogen engines [PDF]

open access: yes, 2012
Hydrogen is ameans to chemically store energy. It can be used to buffer energy in a society increasingly relying on renewable but intermittent energy or as an energy vector for sustainable transportation.
Boyer, Brad   +6 more
core   +1 more source

Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications [PDF]

open access: yes, 2020
Internal reforming of ethanol fuel was investigated on high-performance metal-supported solid oxide fuel cells (MS-SOFCs) with infiltrated catalysts. The hydrogen concentration and internal reforming effects were evaluated systematically with different ...
Dogdibegovic, E, Fukuyama, Y, Tucker, MC
core   +1 more source

Role of a Unitized Regenerative Fuel Cell in Remote Area Power Supply: A Review

open access: yesEnergies, 2023
This manuscript presents a thorough review of unitized regenerative fuel cells (URFCs) and their importance in Remote Area Power Supply (RAPS). In RAPS systems that utilize solar and hydrogen power, which typically include photovoltaic modules, a proton ...
Manish Kumar Singla   +5 more
doaj   +1 more source

Thermal management of polymer electrolyte membrane fuel cells: comparative assessment of cooling systems

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
Thermal management of proton exchange membrane (PEM) fuel cells in hydrogen electric and hybrid electric vehicles is of great importance since most of heat generated inside the cells is absorbed by the structure of the fuel cells.
Aida Farsi, Marc A. Rosen
doaj   +1 more source

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