nonplus
发表于 2025-3-23 11:26:54
Pyridine Containing Aromatic Polyether Membranes,polymer electrolytes for high temperature polymer electrolyte membrane fuel cell (HT-PEMFC) applications operating at 180 °C. These polymeric materials present excellent thermal and oxidative stability both ex situ and in situ as well as high proton conductivities after doping with strong protic aci
嘴唇可修剪
发表于 2025-3-23 14:11:30
Techniques for PBI Membrane Characterization,ractical notes, and critical comments are provided. Covered methods include determination of water uptake and acid doping level, measurement of proton conductivity, molecular weight analysis by viscosity and size exclusion chromatography, determination of solubility and gel content, filtration of po
BIPED
发表于 2025-3-23 21:29:56
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跳动
发表于 2025-3-24 00:32:50
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退出可食用
发表于 2025-3-24 05:56:17
Polybenzimidazole Membranes by Post Acid Doping,for the preparation of proton conducting membranes for high-temperature polymer electrolyte membrane fuel cells. This contribution covers the membrane fabrication process from casting to acid doping and extends to a review of membrane characteristics and modifications. Furthermore, it briefly addres
眼界
发表于 2025-3-24 09:16:00
PBI Membranes Via the PPA Process,the PBI solution directly from PPA not only improves manufacturability, but allows for various chemistries of PBI to be synthesized by overcoming some of the solubility limits seen in the traditional synthesis and imbibing process. PBIs prepared via the sol–gel PPA process exhibit high inherent visc
Ophthalmoscope
发表于 2025-3-24 10:43:23
Polybenzimidazoles with Enhanced Basicity: A Chemical Approach for Durable Membranes,oaches to improve the conductivity and its stability are presented by tailoring the polymer basicity: (a) modification of the polymer backbone by synthesis of new monomers and (b) fabrication of (nano)composite membranes with functionalized fillers. Chemical modification of the polymer backbone is l
小官
发表于 2025-3-24 16:55:59
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Yag-Capsulotomy
发表于 2025-3-24 22:41:28
PBI-Based Composite Membranes,oxides, heteropolyacids and their derivates, and pyrophosphate, ionic liquids, and even carbon-based materials. Information about the membrane preparation, physicochemical characterization, proton conductivity, and fuel cell results has been provided. In most of the cases, good results have been pre
Carcinogenesis
发表于 2025-3-25 00:14:07
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