Results 71 to 80 of about 3,284,231 (210)

Key Materials for Proton Exchange Membrane Fuel Cell

open access: yes, 2009
As a promising candidate for new power supplier, Proton Exchange Membrane Fuel Cell (PEMFC) is on the way of its commercialization. Although durability, cost, hydrogen generation and distribution are the main issues of the PEMFC wide application, aiming ...
衣宝廉, 俞红梅
core  

Spatial‐Compatibility‐Assisted Molecular Intercalation in MXenes

open access: yesAdvanced Materials, EarlyView.
This work demonstrates a solvent–free NH4F–mediated route for simultaneous Al removal and molecular intercalation in MXenes. Intercalants are selected by comparing their crystallographic X, Y, and Z dimensions with the MXene interlayer spacing, establishing a spatial‐compatibility criterion that rationalizes guest–host matching and enables predictive ...
Minhao Sheng   +6 more
wiley   +1 more source

Fabrication and Characterization of Sulfonated Polysulfone Membrane with Different Thicknesses for Proton Exchange Membrane Fuel Cell

open access: yesEngineering Perspective
Membranes play a critical role in the performance of proton exchange membrane fuel cells. Membrane thicknesses have positive and negative effects on the characteristics of proton exchange membranes.
İrem Tanış   +5 more
doaj   +1 more source

Proton Exchange Membrane Fuel Cell degradation at Subzero Temperature

open access: yes, 2011
Proton Exchange Membrane Fuel Cell degradation at Subzero ...
邵志刚, 衣宝廉, 俞红梅
core  

Self‐Assembling Copolymers Encapsulating Single Endothelial Cells Induce Endogenous ECM Deposition and Vascular Regeneration

open access: yesAdvanced Materials, EarlyView.
This study presents the first demonstration of stable sub‐50‐micron single‐cell GPM vesicles fabricated through the intrinsic self‐assembly of an amphiphilic copolymer. Hierarchical assembly of cell containing GPM vesicles into microspheres enable tunable, sustained cell delivery with immune protection.
Viola B. Morris   +11 more
wiley   +1 more source

Carbon-based Electrecatalysts for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells

open access: yes, 2011
Carbon-based Electrecatalysts for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel ...
钟和香
core   +1 more source

Atom–Cluster Synergy in Scalable Fe–Ru Dual‐Site Architectures Accelerates Alkaline Hydrogen Evolution

open access: yesAdvanced Materials, EarlyView.
A mechanochemically synthesized dual‐site electrocatalyst (RuNC@Fe1NC) accelerates alkaline hydrogen evolution via atomic‐level spatial decoupling. Oxophilic Fe single atoms effectively dissociate water, while adjacent Ru nanoclusters rapidly recombine hydrogen.
Jae‐Hoon Baek   +9 more
wiley   +1 more source

D1.2: First catalyst candidates for single cell testing (PROMET-H2 R.E. 10/21)

open access: yes, 2021
Cost-effective PROton Exchange MEmbrane WaTer Electrolyser for Efficient and Sustainable Power-to-H2 ...
Antonino S Aricò   +8 more
core  

A Cu2S/NiOOH Heterojunction Enables Highly Selective Ammonia‐to‐Nitrite Electrooxidation at Industrially Relevant Current Densities

open access: yesAdvanced Materials, EarlyView.
Cu2S/NiOOH heterojunction enables efficient ammonia electrooxidation coupled with hydrogen evolution. Interfacial electronic modulation of Ni sites promotes selective NH3‐to‐NO2− electrooxidation at high current density. In a membrane electrode assembly, Cu2S/NiOOH maintains over 90% Faradaic efficiency of nitrite at 800 mA cm−2, highlighting its ...
Ke Wang   +13 more
wiley   +1 more source

Styrene and Its Derivatives Used in Proton Exchange Membranes and Anion Exchange Membranes for Fuel Cell Applications: A Review

open access: yesBatteries
The proton exchange membrane (PEM) is a critical component of fuel cells, responsible for controlling the flow of protons while minimizing fuel crossover through its channels.
Muhammad Rehman Asghar   +5 more
doaj   +1 more source

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