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Updated: Feb 27, 2026

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
Published on: October 12, 2019
Proton conduction in a new 3-D open-framework vanadoborate with an abundant hydrogen bond system
Xinxin Liu1, Dan Zhang, Lingyun Li
1State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P.R. China. hmyuan@jlu.edu.cn.
Abstract:
Herein, a novel open-framework vanadoborate, (H2en)4H2[V12B18O54(OH)6(H2O)]·11H2O (1, en = ethylenediamine), was hydrothermally synthesized and structurally characterized. The framework was constructed by discrete [V12B18O54(OH)6(H2O)]10- polyanion clusters with H2en2+ as counterions. An extended network of hydrogen bonds among polyanions, cations, and crystal water molecules links the structure in three dimensions. These structural features endow the present vanadoborate with unique proton conduction properties. This material shows a high proton conductivity of 1.87 × 10-4 S cm-1 at 333 K under the condition of 100% relative humidity, and the activation energy was estimated to be 0.38 eV.
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