Analysis of Cationic Structure in Some Room-Temperature Molten Fluorides and Dependence of Their Ionic Conductivity and Viscosity on Hydrofluoric Acid Concentration

2011 ◽  
Vol 115 (31) ◽  
pp. 9593-9603 ◽  
Author(s):  
Tomohiro Isogai ◽  
Takaaki Nakai ◽  
Hidemi Inoue ◽  
Kenta Nakanishi ◽  
Shinji Kohara ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Acid Concentration ◽  
Hydrofluoric Acid ◽  
Room Temperature ◽  
Molten Fluorides

Analysis of Cationic Structure in Some Room Temperature Molten Fluorides and Dependence of Their Ionic Conductivity and Viscosity on HF-Concentration

2019 ◽  
Vol 33 (7) ◽  
pp. 627-639
Author(s):  
Akimasa Tasaka ◽  
Takaaki Nakai ◽  
Hidemi Inoue ◽  
Kenta Nakanishi ◽  
Tomohiro Isogai ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Molten Fluorides

Enhanced room temperature ionic conductivity of the LiBH4·1/2NH3–Al2O3 composite

2021 ◽  
Author(s):  
Ruixue Zhang ◽  
Wanying Zhao ◽  
Zhenzhen Liu ◽  
Shanghai Wei ◽  
Yigang Yan ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Ion Conductivity ◽  
Al2o3 Composite

In situ formed amorphous LiBH4·1/2NH3 on the surface of Al2O3 nanoparticles results in an enhanced ion conductivity of 1.1 × 10−3 S cm−1 at room temperature.

scholarly journals Anion ordering enables fast H− conduction at low temperatures

2021 ◽  
Vol 7 (23) ◽  
pp. eabf7883
Author(s):  
Hiroki Ubukata ◽  
Fumitaka Takeiri ◽  
Kazuki Shitara ◽  
Cédric Tassel ◽  
Takashi Saito ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Structural Transition ◽  
Hexagonal Lattice ◽  
Ionic Conductors ◽  
Activation Barriers ◽  
Energy Devices ◽  
Energy Applications ◽  
Chemical Disorder ◽  
New Energy

The introduction of chemical disorder by substitutional chemistry into ionic conductors is the most commonly used strategy to stabilize high-symmetric phases while maintaining ionic conductivity at lower temperatures. In recent years, hydride materials have received much attention owing to their potential for new energy applications, but there remains room for development in ionic conductivity below 300°C. Here, we show that layered anion-ordered Ba2−δH3−2δX (X = Cl, Br, and I) exhibit a remarkable conductivity, reaching 1 mS cm−1 at 200°C, with low activation barriers allowing H− conduction even at room temperature. In contrast to structurally related BaH2 (i.e., Ba2H4), the layered anion order in Ba2−δH3−2δX, along with Schottky defects, likely suppresses a structural transition, rather than the traditional chemical disorder, while retaining a highly symmetric hexagonal lattice. This discovery could open a new direction in electrochemical use of hydrogen in synthetic processes and energy devices.

Multi-variable Bayesian optimization for a new composition with high Na+ conductivity in the Na3PS4 family

2022 ◽  
Author(s):  
Jung Yong Seo ◽  
Sunggeun Shim ◽  
Jin-Woong Lee ◽  
Byung Do Lee ◽  
Sangwon Park ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Room Temperature ◽  
High Ionic Conductivity ◽  
Bayesian Optimization ◽  
Solid State Electrolyte ◽  
Aliovalent Substitution

Na3PS4 is an archetypal room-temperature (RT), Na+-conducting, solid-state electrolyte. Various compositional modifications of this compound via iso/aliovalent substitution are known to provide a high ionic conductivity (ion) that is comparable...

Enhanced Room-Temperature Ionic Conductivity of NaCB11H12 via High-Energy Mechanical Milling

2021 ◽  
Author(s):  
Fabrizio Murgia ◽  
Matteo Brighi ◽  
Laura Piveteau ◽  
Claudia E. Avalos ◽  
Valerio Gulino ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Mechanical Milling ◽  
Room Temperature ◽  
High Energy

Enlargement of diatom frustules pores by hydrofluoric acid etching at room temperature

2011 ◽  
Vol 46 (17) ◽  
pp. 5665-5671 ◽  
Author(s):  
Deyuan Zhang ◽  
Yu Wang ◽  
Wenqiang Zhang ◽  
Junfeng Pan ◽  
Jun Cai
Keyword(s):  
Hydrofluoric Acid ◽  
Room Temperature ◽  
Acid Etching
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