Results 21 to 30 of about 26,002 (260)

Preparation and Proton Exchange Properties of GO Grafting modified Cross-linked Membranes

International Journal of Electrochemical Science, 2018
The cross-linked membranes were prepared with DS 68% SPEEK and epoxy resin. Sulfonated graphite oxide was grafted into SPEEK main bonds to study the sulfonic acid groups on the impact of proton exchange properties. Using solartron electrochemical testing
Zhengping Zhao, Chenyu Pan, Guojun Jiang, Mingqiang Zhong, Benhua Fei   +4 more
doaj   +1 more source

Fabrication of Composite Membrane Based on Silicotungstic Heteropolyacid Doped Polybenzimidazole for High Temperature PEMFC

International Journal of Electrochemical Science, 2012
Stable proton conducting composite membranes (CM1-CM3) based on polybenzimidazole (PBI) and various weight percent (35, 50 and 65 wt %) of inorganic hetero poly acids (IHA) were prepared by dissolving PBI in methanesulfonic acid and required amount of ...
Jin-Woo Lee, Sher Bahadar Khan, Kalsoom Akhtar, Kwang-In Kim, Tae-Won Yoo, Kwang-Won Seo, Haksoo Han, Abdullah M. Asiri   +7 more
doaj   +1 more source

Hybrid Composite Membrane of Phosphorylated Chitosan/Poly (Vinyl Alcohol)/Silica as a Proton Exchange Membrane

Membranes, 2021
Chitosan is one of the natural biopolymers that has been studied as an alternative material to replace Nafion membranes as proton change membranes.
Nur Adiera Hanna Rosli, Kee Shyuan Loh, Wai Yin Wong, Tian Khoon Lee, Azizan Ahmad   +4 more
doaj   +1 more source

Studies on the SPEEK membrane with low degree of sulfonation as a stable proton exchange membrane for fuel cell applications [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2017
Sulfonated poly (ether ether ketone) (SPEEK) with a low degree of sulfonation (DS = 40%) was prepared for proton exchange membrane fuel cells (PEMFC).
Mohammad Javad Parnian, Fatemeh Gashoul, Soosan Rowshanzamir   +2 more
doaj   +1 more source

Physicochemical properties of proton-conducting SmNiO3 epitaxial films

Journal of Materiomics, 2019
Proton conducting SmNiO3 (SNO) thin films were grown on (001) LaAlO3 substrates for systematically investigating the proton transport properties. X-ray Diffraction and Atomic Force Microscopy studies reveal that the as-grown SNO thin films have good ...
Xing Xu, Chen Liu, Jing Ma, Allan J. Jacobson, Cewen Nan, Chonglin Chen   +5 more
doaj   +1 more source

Proton Conduction via Water Bridges Hydrated in the Collagen Film

Journal of Functional Biomaterials, 2020
Collagen films with proton conduction are a candidate of next generation of fuel-cell electrolyte. To clarify a relation between proton conductivity and formation of water networks in the collagen film originating from a tilapia’s scale, we ...
Hiroshi Matsui, Yasumitsu Matsuo
doaj   +1 more source

Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride

Chimica Techno Acta, 2022
In this work, proton conductivity, morphology and mechanical properties of (1–x)CsH2PO4–xF-42 (x=0.05–0.3, weight ratio) membranes were investigated for the first time.
Irina N. Bagryantseva, Yuri E. Kungurtsev, Valentina G. Ponomareva   +2 more
doaj   +1 more source

Anhydrous Proton Conduction of Soy Protein

International Journal of Electrochemical Science, 2021
Water-soluble soy protein contains a large amount of acidic amino acids, such as glutamic and aspartic acids. Since these acidic amino acids possess the –COOH group in their side chain, the water soluble soy protein acts as an acidic polymer.
Masanori Yamada, Yuka Nagano, Tetsuya Yamada   +2 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source