Results 41 to 50 of about 3,912 (301)

Exceptionally high proton conductivity in Eu2O3 by proton-coupled electron transfer mechanism

iScience
Summary: Proton conductors are typically developed by doping to introduce structural defects such as oxygen vacancies to facilitate ionic transport through structural bulk conduction mechanism.
Shuo Wan, M. A. K. Yousaf Shah, Hao Wang, Peter D. Lund, Bin Zhu   +4 more
doaj   +1 more source

Proton-Exchanged Graphite oxide-incorporated CsXH3-XPMo12O40 with High Conductivity at Intermediate Temperatures

International Journal of Electrochemical Science, 2017
Proton conductors operating at a high temperature condition have attracted great attention for intermediate temperature proton exchange membrane fuel cells (PEMFCs).
Min Huang, Xin Huang, Mingming Fei, Jian Sun, Yuming Deng, Chenxi Xu, Jigui Cheng   +6 more
doaj   +1 more source

Spectroscopic and Structural Study of a New Conducting Pyrazolium Salt

Molecules, 2021
The increase in conductivity with temperature in 1H-pyrazol-2-ium 2,6-dicarboxybenzoate monohydrate was analyzed, and the influence of the mobility of the water was discussed in this study.
Sylwia Zięba, Agata Piotrowska, Adam Mizera, Paweł Ławniczak, Karolina H. Markiewicz, Andrzej Gzella, Alina T. Dubis, Andrzej Łapiński   +7 more
doaj   +1 more source

Proton conductors produced by chemical modifications of carbon allotropes, perovskites and metal organic frameworks [PDF]

, 2017
Proton conductors are necessary in fuel cells, hydrogen separation, steam electrolysis, sensors and biological transport systems. Advances in the development of proton conductors from carbon allotropes, perovskites, ceramics and metal organic frameworks ...
Kazuto Hatakeyama, Shinya Hayami, Mohammad Razaul Karim, Michio Koinuma   +3 more
core   +1 more source

A Review on Low-Temperature Protonic Conductors: Principles and Chemical Sensing Applications

Chemosensors
Proton conductors are ceramic materials with a crystalline or amorphous structure, which allow the passage of an electrical current through them exclusively by the movement of protons: H+.
Sofia R. Mendes, Georgenes M. G. da Silva, Evando S. Araújo, Pedro M. Faia   +3 more
doaj   +1 more source

Comparative Study of Epoxy-CsH₂PO₄ Composite Electrolytes and Porous Metal Based Electrocatalysts for Solid Acid Electrochemical Cells

Membranes, 2021
Electrochemical cells based on acid salts (CsH2PO4) have attracted great interest for intermediate temperature, due to the outstanding proton conductivity of acid salts.
Laura Navarrete, Chung-Yul Yoo, José Manuel Serra   +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

Double perovskite cathodes for proton-conducting ceramic fuel cells: are they triple mixed ionic electronic conductors?

Science and Technology of Advanced Materials, 2017
18O and 2H diffusion has been investigated at a temperature of 300 °C in the double perovskite material PrBaCo2O5+δ (PBCO) in flowing air containing 200 mbar of 2H216O.
Helena Téllez Lozano, John Druce, Samuel J. Cooper, John A. Kilner   +3 more
doaj   +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

High-temperature proton exchange membranes with tunable acidity of phosphonic acid groups by incorporating zwitterionic aromatic moieties

NPG Asia Materials
The electrochemical performance and durability of high-temperature proton exchange membranes (HT-PEMs) are critically influenced by the effective distribution of proton conductors, electrolyte retention, and interfacial compatibility.
Xiaofeng Hao, Xu Li, Shuanjin Wang, Min Xiao, Dongmei Han, Sheng Huang, Yuezhong Meng   +6 more
doaj   +1 more source