Permselectivity of a nickel/ceramic composite membrane at elevated temperatures: A new prospect in hydrogen separation?

2007 ◽  
Vol 288 (1-2) ◽  
pp. 208-217 ◽  
Author(s):  
Barbara Ernst ◽  
Stéphane Haag ◽  
Michel Burgard
Keyword(s):  
Composite Membrane ◽  
Ceramic Composite ◽  
Elevated Temperatures ◽  
Hydrogen Separation

scholarly journals Bi-Functional Composting the Sulfonic Acid Based Proton Exchange Membrane for High Temperature Fuel Cell Application

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1000
Author(s):  
Guoxiao Xu ◽  
Juan Zou ◽  
Zhu Guo ◽  
Jing Li ◽  
Liying Ma ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Composite Membrane ◽  
Sulfonic Acid ◽  
Elevated Temperatures ◽  
Mechanical Stability ◽  
Strong Dependence ◽  
Proton Exchange ◽  
Nafion Membrane ◽  
Silica Nanofiber

Although sulfonic acid (SA)-based proton-exchange membranes (PEMs) dominate fuel cell applications at low temperature, while sulfonation on polymers would strongly decay the mechanical stability limit the applicable at elevated temperatures due to the strong dependence of proton conduction of SA on water. For the purpose of bifunctionally improving mechanical property and high-temperature performance, Nafion membrane, which is a commercial SA-based PEM, is composited with fabricated silica nanofibers with a three-dimensional network structure via electrospinning by considering the excellent water retention capacity of silica. The proton conductivity of the silica nanofiber–Nafion composite membrane at 110 °C is therefore almost doubled compared with that of a pristine Nafion membrane, while the mechanical stability of the composite Nafion membrane is enhanced by 44%. As a result, the fuel cell performance of the silica nanofiber-Nafion composite membrane measured at high temperature and low humidity is improved by 38%.

A Study on Mechanical and Tribological Properties of Hot Pressed Al2O3/ZrO2/h-BN/TiO2 Composites

2011 ◽  
Vol 695 ◽  
pp. 417-420 ◽  
Author(s):  
Hyun Hwi Lee ◽  
Seung Ho Kim ◽  
Bhupendra Joshi ◽  
Soo Wohn Lee
Keyword(s):  
Tribological Properties ◽  
Ceramic Composite ◽  
Elevated Temperatures ◽  
Cutting Tools ◽  
High Hardness ◽  
High Melting Point ◽  
Corrosion Resistant ◽  
Mechanical And Tribological Properties ◽  
Chemical Inertness ◽  
Corrosion Resistant Coatings

Oxide ceramics such as alumina and zirconia are industrially utilized as cutting tools, a variety of bearings, biomaterials, and thermal and corrosion-resistant coatings due to their high hardness, chemical inertness, high melting point, and ability to retain mechanical strength at elevated temperatures. In this research, the effect of other ceramic additives (TiO2) and h-BN within alumina(α-Al2O3) and yttria-stabilized tetragonal (Y-TZP) composite was studied with respect to the mechanical and tribological properties. The lowest coefficient of frction of 0.45 was observed for the ZTA ceramic composite with hBN-TiO2. The highest hardness, fracture toughness and flexural strength were obtained as 15.7GPa, 5.2MPam-1/2, 712MPa, respectively.

Performance assessment of an analcime-C zeolite–ceramic composite membrane by removal of Cr(vi) from aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6246-6254 ◽  
Author(s):  
R. Vinoth Kumar ◽  
Ashim Kumar Basumatary ◽  
Aloke Kumar Ghoshal ◽  
G. Pugazhenthi
Keyword(s):  
Aqueous Solution ◽  
Performance Assessment ◽  
Composite Membrane ◽  
Ceramic Composite ◽  
Hydrothermal Crystallization ◽  
Separation Potential ◽  
Crystallization Method

The aim of this work is to fabricate an analcime-C composite membrane by anin situhydrothermal crystallization method and investigate its separation potential by the ultrafiltration of Cr(vi) from aqueous solution.

Development and Characterization of a MCM-48 Ceramic Composite Membrane for the Removal of Cr(VI) from an Aqueous Solution

2016 ◽  
Vol 142 (9) ◽  
Author(s):  
Ashim Kumar Basumatary ◽  
P. Vikram Singh ◽  
R. Vinoth Kumar ◽  
Aloke Kumar Ghoshal ◽  
G. Pugazhenthi
Keyword(s):  
Aqueous Solution ◽  
Composite Membrane ◽  
Ceramic Composite

A novel hydrophilic polymer-ceramic composite membrane 1

2008 ◽  
Vol 312 (1-2) ◽  
pp. 15-22 ◽  
Author(s):  
Xuzhi Cao ◽  
Taozhou Zhang ◽  
Quang Trong Nguyen ◽  
Yuanyuan Zhang ◽  
Zhenghua Ping
Keyword(s):  
Composite Membrane ◽  
Ceramic Composite ◽  
Hydrophilic Polymer
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