Heteropolyacid-Encapsulated Self-Assembled Materials for Anhydrous Proton-Conducting Electrolytes

The composite material of heteropolyacid (12-phosphotungstic acid; PWA) and polystyrene sulfonic acid (PSS) construct the PWA-encapsulated material by the self-assembly of −SO3H onto the PWA surface; as a result, the fast proton transfer occurred at the interface between the PWA and −SO3H, and the encapsulated material indicated the high anhydrous proton conductivity of 1 × 10-2 S cm-1 at 180 °C. These anhydrous proton-conducting materials without the existence of water molecules are quite different from customary ion-exchange membrane, such as Nafion, and may have advantages as an electrolyte membrane for polymer electrolyte membrane fuel cells operating at intermediate temperatures under anhydrous conditions but also for electrochemical devices including electrochromic displays, chemical sensors, and others

A Self-Ordered, Crystalline Glass, Mesoporous Nanocomposite with High Proton Conductivity of 2 × 10^-2 S cm^-1 at Intermediate Temperature

We prepared a TiO2−P2O5 self-ordered, crystalline glass, mesoporous nanocomposite (CGMN) with water-holding capacity at an intermediate temperature region (130−200 °C). This TiO2−P2O5 CGMN showed the high proton conductivity of 2 × 10-2 S cm-1 at 160 °C under fully saturated humidification conditions (100% RH). Additionally, these conductivities were stable at intermediate temperature conditions. The TiO2−P2O5 CGMN may have a potential not only for the fuel cell electrolytes operated at intermediate temperature conditions but also for electrochemical devices, including electrochromic displays, chemical sensors, lithium rechargeable batteries, and others

sj-docx-1-tag-10.1177_17562848211062803 – Supplemental material for Endoscopic bilateral revision after metal stent deployment for hepatic hilar obstruction using molting technique (with videos)

Supplemental material, sj-docx-1-tag-10.1177_17562848211062803 for Endoscopic bilateral revision after metal stent deployment for hepatic hilar obstruction using molting technique (with videos) by Masahiro Yamamura, Takeshi Ogura, Saori Ueno, Atsushi Okuda, Nobu Nishioka, Masanori Yamada, Kazuya Ueshima, Jun Matsuno, Yoshitaro Yamamoto and Kazuhide Higuchi in Therapeutic Advances in Gastroenterology</p