A novel proton exchange membrane (PEM) was designed and prepared from a polymer containing calix[4]arene as the functional unit to transport proton. The proton-conductivity of this membrane is about the same order of magnitude as that of Nafion 112 membrane. It is of interest to note that very different from most of the currently known PEMs, this membrane can transport proton without the help o...

Energy-conversion devices based on the phenomenon of proton conduction, for example, polymer electrolyte membrane fuel cells (PEMFCs), require low cost and sustainable electrolytes with high ionic conductivity good mechanical properties under anhydrous conditions at temperatures up to 150 °C. Biopolymers possess an intrinsic thermomechanical stability but insufficient in dry state, which howeve...

Abstract Development of high temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) at elevated temperatures is important for the enhancement tolerance toward CO impurities and development non‐precious metal catalysts. The key challenge in such HT‐PEMFCs membranes. Herein, situ formed pyrophosphates (MP 2 O 7 , where M = Sn, Ti, Zr) phosphoric acid doped polybenzimidazole (PA/PBI) comp...

Proton transport at water/membrane interfaces plays a fundamental role for a myriad of bioenergetic processes. Here we have performed ab initio molecular dynamics simulations of proton transfer along two phosphatidylcholine bilayers. As found in previous theoretical studies, the excess proton is preferably located at the water/membrane interface. Further, our simulations indicate that it intera...

A traditional composite cathode for proton-conducting solid oxide fuel cells (H-SOFCs) is typically obtained by mixing materials and proton conducting electrolyte of BaCe0.7Y0.2Zr0.1O3–? (BZCY), providing chemical thermal compatibility with the electrolyte. Here, a series triple-conducing cobalt-free iron-based perovskites as cathodes H-SOFCs reported. Specifically, BaCexFe1–xO3–? (x = 0.36, 0....

Biofuel cells generate electricity through biological processes. Conventional microbial fuel cells (MFCs) operate by converting organic substrates, such as glucose, acetate, starch, and lactate, to electrical bioenergy through microbial oxidation processes [1-3]. A typical MFC consists of an anodic and a cathodic chamber with electrodes partitioned by a proton exchange membrane (PEM) or a catio...

Membrane protein complexes can support both the generation and utilisation of a transmembrane electrochemical proton potential ('proton-motive force'), either by transmembrane electron transfer coupled to protolytic reactions on opposite sides of the membrane or by transmembrane proton transfer. Here we provide the first evidence that both of these mechanisms are combined in the case of a speci...

Based on a previously developed polyamide proton conductive macromolecule, the nano-scale structure of the self-assembled proton conductive channels (PCCs) is adjusted via enlarging the nano-scale pore size within the macromolecules. Hyperbranched polyamide macromolecules with different size are synthesized from different monomers to tune the nano-scale pore size within the macromolecules, and ...

Reconstituted transhydrogenase-ATPase vesicles obtained with purified beef heart transhydrogenase and oligomycin-sensitive ATPase were investigated with respect to the mode of interaction between the two proton pumps, with special reference to the relative contributions of the membrane potential and proton gradient using valinomycin and nigericin in the presence of potassium. In the absence of ...