Results 71 to 80 of about 77,682 (299)

Electrochemical energy conversion in direct methanol fuel cells [PDF]

open access: yes, 2008
Direct methanol fuel cells (DMFCś) are promising candidates as portable power sources due to their lower weight, volume and high-energy density. They can potentially provide an energy content that exceeds current battery technology, with the possibility ...
Pinto, A.M.F.R.   +3 more
core  

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications [PDF]

open access: yes, 2013
Synthesis and characterization of new ion exchange membranes made from chlorosulfonated polyethersul- fone (SO2Cl-PES) crosslinked by polyaminated crosslinking reagents have been performed.
FAUVARQUE, J.F   +5 more
core   +6 more sources

Radiation‐Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System

open access: yesAdvanced Materials, EarlyView.
A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Patrick D. Willenshofer   +9 more
wiley   +1 more source

U.S. DOE Progress Towards Developing Low-Cost, High Performance, Durable Polymer Electrolyte Membranes for Fuel Cell Applications

open access: yesMembranes, 2012
Low cost, durable, and selective membranes with high ionic conductivity are a priority need for wide-spread adoption of polymer electrolyte membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs).
Dimitrios C. Papageorgopoulos   +10 more
doaj   +1 more source

Science‐Towards‐Technology Breakthrough in CO2 Electroreduction: Multiphysics, Multiscale, and Artificial Intelligence Insights

open access: yesAdvanced Materials, EarlyView.
Electrochemical CO2RR is a key technology for converting CO2 into chemicals, but there remains a gap between “laboratory science” and “engineering practice” in current research. This review establishes a multi‐scale research framework, encompassing atomic‐level characterization, microenvironment regulation, external field‐assisted optimization, and AI ...
Ping Hong   +3 more
wiley   +1 more source

Preparation of PtRu/C Electrocatalysts Using Citric Acid as Reducing Agent and OH- ions as Stabilizing Agent for Direct Alcohol Fuel Cell (DAFC)

open access: yesInternational Journal of Electrochemical Science, 2009
PtRu/C electrocatalysts (Pt:Ru atomic ratio of 50:50 and 80:20) were prepared using citric acid as reducing agent and OH- ions as stabilizing agent. The obtained electrocatalysts were characterized by energy dispersive X-ray analysis and transmission ...
A.O. Neto   +3 more
doaj   +1 more source

Compact Fuel-Cell System Would Consume Neat Methanol [PDF]

open access: yes
In a proposed direct methanol fuel-cell electric-power-generating system, the fuel cells would consume neat methanol, in contradistinction to the dilute aqueous methanol solutions consumed in prior direct methanol fuel-cell systems. The design concept of
Kindler, Andrew   +2 more
core   +1 more source

Pengaruh Silikapadamembran Elektrolit Berbasis Polieter Eter Keton [PDF]

open access: yes, 1994
PENGARUH SILIKAPADAMEMBRAN ELEKTROLIT BERBASIS POLIETER ETER KETON. Sel bahan bakar telah dikembangkan sebagai pengkonversi energi alternatif. Nafion adalah membran terflorinasi yang secara intensif telah digunakan pada Direct Methanol Fuel Cell (DMFC ...
Hartanto, S. (Singgih)   +3 more
core  

Effect of dispersion state of Cloisite15A® on the performance of SPEEK/Cloisite15A nanocomposite membrane for DMFC application [PDF]

open access: yes, 2011
The introduction of 2,4,6-triaminopyrimidine (TAP) into sulfonated poly(ether ether ketone) (SPEEK)/Cloisite15A® nanocomposite membranes were investigated for the purpose of maintaining low methanol permeability and suppressing swelling in direct ...
Ismail, Ahmad Fauzi   +2 more
core   +1 more source

Functional Metal Complexes for Solar–Light‐Driven Energy Conversion

open access: yesAdvanced Materials, EarlyView.
This review provides an exhaustive summary of the recent advancements of functional metal complexes in solar‐to‐electrical, ‐chemical, and ‐thermal energy conversion, comprising material categories, design strategies, underlying principles of operation, and identified improvement of performances.
Yanyan Qin   +3 more
wiley   +1 more source

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