Proton conductivity resulting from different triazole-based ligands in two new bifunctional decavanadates

Abstract

To investigate the effects of triazole-based ligands in polyoxovanadates (POVs) on proton conductivity, we designed and synthesized two decavanadate-based POVs.

Triazole‐Modified Molybdenum Oxide with High Proton Conductivity

“…The influence of temperature on the proton conductivity of compounds is primarily owing to that the mobility of H 2 O molecules acting as proton carriers increases with the temperature increase . It should be noted that the proton conductivity of compound 1 , 1.94×10 −2 S cm −1 at 85 °C and 95 % RH, is obviously higher than those of mostly reported proton‐conducting materials based on molybdenum oxides, and comparable to those of mostly excellent proton‐conduction materials . In Table S1, the comparison of proton conductivities of 1 and 2 with those of other molybdenum oxides and crystalline proton conductor materials are given.…”

“…[25] It should be noted that the proton conductivity of compound 1, 1.94 × 10 À 2 S cm À 1 at 85°C and 95 % RH, is obviously higher than those of mostly reported proton-conducting materials based on molybdenum oxides, [26] and comparable to those of mostly excellent proton-conduction materials. [27][28][29][30][31][32] In Table S1, the comparison of proton conductivities of 1 and 2 with those of other molybdenum oxides and crystalline proton conductor materials are given.…”

Synthesis of highly water‐absorbing chromium oxyhydroxide as a dopant in a hybrid proton‐conducting membrane

“…30 Developing a new high-efficiency proton conductor with an environment-friendly and simple method is a challenging topic, which is of great significance for quantification in the future. 31,32 Proton-conducting materials with hydrophilic groups on the surface, such as hydroxyl ( OH) and carboxyl groups ( COOH), can form a continuous and order conducting path along the interface, which can promote faster proton conduction. [33][34][35] In 2011, Jung reported that graphene oxide (GO)-Nafion composites showed high proton conductivity of 0.0396 and 0.119 S cm À1 even with only 0.1% and 1% GO content, and the physical stability of the hybrid membrane was significantly improved.…”

Two 2D Layered P4Mo6 Clusters with Potential Bifunctional Properties: Proton Conduction and CO2 Photoreduction

“…What’s more, because of the potential applications of POMs in optical, catalytic, electrical, and magnetic properties, an increasing number of researchers pay attention to the synthesis of bifunctional POM-based materials in recent years. − As one of the most important parts of the catalytic properties, photocatalytic properties were investigated for the reported molybdophosphate hybrids, ,− from which it was disputable that the unique redox property and excellent photocatalytic activity made the P 4 Mo 6 cluster a potential promising photocatalyst for the CO 2 photoreduction.…”