Open AccessComparing Proton Conduction in Potassium and Ammonium Borosulfate—Isostructural Inorganic Polyelectrolytes Exhibiting High Proton Mobility
Author(s) -
Chaloux Brian L.,
Ridenour J. August,
Johannes Michelle D.,
Epshteyn Albert
Publication year - 2022
Publication title -
advanced energy and sustainability research
Language(s) - English
Resource type - Journals
ISSN - 2699-9412
DOI - 10.1002/aesr.202270017
Subject(s) - isostructural , polyelectrolyte , proton , ammonium , salt (chemistry) , potassium , crystallite , inorganic chemistry , materials science , hydrolysis , chemistry , chemical engineering , polymer , crystallography , crystal structure , organic chemistry , physics , quantum mechanics , engineering
Borosulfates Chaloux, Epshteyn and co‐workers in article 2200029 , present a scalable method to synthesize a class of solid acid inorganic proton‐conducting borosulfate polyelectrolytes. The proton conductivities of two isostructural borosulfates – ammonium and potassium – are compared over 25–200 °C. Free protons are highly mobile in both structures, while charge carrier concentration is dominated by the formation of hydrolytic defects within crystallites.