State-of-the-art automotive fuel cells that operate at about 80 °C require large radiators and air intakes to avoid overheating. High-temperature above 100 under anhydrous conditions provide an ideal solution for heat rejection in heavy-duty vehicle applications. Here we report protonated phosphonic acid electrodes remarkably improve the performance of high-temperature polymer electrolyte membr...

We report the preparation of graphene phosphonic acid (GPA) via a simple and versatile method and its use as an efficient flame retardant. In order to covalently attach phosphorus to the edges of graphene nanoplatelets, graphite was ball-milled with red phosphorus. The cleavage of graphitic C-C bonds during mechanochemical ball-milling generates reactive carbon species, which react with phospho...

The phosphonic analogue of L-phenylalanine, (/?)-(l-am ino-2-phenylethyl)phosphonic acid (A P E P ), inhibits buckwheat phenylalanine ammonia-lyase (PAL) com petitively with a K t value o f 1.5 |iM. The K, value for the (S)-enantiomer is 11.6 jj,M. The corresponding values for the enantiom ers of the phosphonous analogue are 35 and 205 |u.m , respectively. APEP inhibits the light-induced synthe...

The self-association of phosphonic acids with general formula RP(O)(OH)2 in solution state remains largely unexplored. understanding is that such molecules form multiple intermolecular hydrogen bonds, but the stoichiometry self-associates and bonding motifs are unclear. In this work, we report results study tert-butylphosphonic acid using low temperature liquid-state 1H 31P NMR spectroscopy (10...

The relative stability of hydrogen-bonded of Molybdate-Phosphonic Acid (MPA) complex (1:2) ingas phase has been carried out using Density Functional Theory (DFT) methods. The methods are usedfor calculations are B3LYP, BP86 and B3PW91 that have been studied in two series of basis sets: D95**and 6-31+G(d,p) for hydrogen and oxygen atoms; LANL2DZ for Mo and Phosphorus. Predictedhydrogen-bond geom...

Amino phosphonic acids are good heavy metal extractants for liquid–liquid extraction, but this method requires the use of an organic solvent, which is itself a pollutant. The incorporation these in solid supports gave us opportunity to find solution problem. synthesis new material by Amino-Cyclo-Hexyl Phosphonic Acid into interlayer space Ni/Al-LDH, designated as Ni/Al-ACHPA, was carried out co...

Self-assembled monolayers (SAMs) based on Br-2PACz ([2-(3,6-dibromo-9H-carbazol-9-yl)ethyl]phosphonic acid) 2PACz ([2-(9H-Carbazol-9-yl)ethyl]phosphonic and MeO-2PACz ([2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl]phosphonic molecules were investigated as hole-extracting interlayers in organic photovoltaics (OPVs). The highest occupied molecular orbital (HOMO) energies of these SAMs measured at −6.0...

the relative stability of hydrogen-bonded of molybdate-phosphonic acid (mpa) complex (1:2) ingas phase has been carried out using density functional theory (dft) methods. the methods are usedfor calculations are b3lyp, bp86 and b3pw91 that have been studied in two series of basis sets: d95**and 6-31+g(d,p) for hydrogen and oxygen atoms; lanl2dz for mo and phosphorus. predictedhydrogen-bond geom...