One-pot self-assembly synthesis of H_3+xPMo_12−xV_xO₄₀@[Cu₆O(TZI)₃(H₂O)₉(NO₃)_n]·(H₂O)₁₅ for enhanced proton conduction materials

Abstract

Since the strict operating conditions, complicated manufacturing process and unacceptable costs, commercial Nafion-based membrane for fuel battery are blocked for large-scale applications. Thus, development of new type of proton conduction...

Enhanced proton conductivity in a Cu-BTC thin-film membrane through lysine incorporation and a mixed matrix membrane

“…[11][12][13][14][15][16] Among them, copper benzene-1,3,5-tricarboxylate (Cu-BTC), a MOF with a Cu paddle wheel structure formed by the coordination self-assembly of Cu and BTC units, has been employed as a platform in which the open metal site (OMS) can be manipulated to enhance the proton conductivity. 17,18 The coordinative insertion of proton donors, including solvent molecules (e.g., H 2 O, MeOH, and EtOH), imidazole functional molecules, and polyoxometalate acids, has affirmed the importance of the open form of the metal sites. 19 Systematic studies reveal that a high concentration of protons and provision for their transport in hydrogen networks are prerequisites for proton conduction.…”

A Hexameric Ruthenium(III)-Containing Tungstoantimonate with Good Proton Conductivity Performance

“…Apparently, there is an evident positive correlation between proton conductivity and RH (Figure b). Additionally, the temperature-dependent proton conductivity of compound 1 was evaluated at the temperature range of 303–333 K under 55% RH (Figure c), where σ reached 5.41 × 10 –3 S cm –1 at 333 K up from 1.58 × 10 –3 S cm –1 measured at 303 K. The accelerated proton conductivity of complex 1 is evident under heated conditions, where higher temperatures are hypothesized to facilitate the activation of water molecules through enhanced thermal oscillations, consequently expediting the process of proton transport . Furthermore, the Arrhenius activation energy ( E a ) of compound 1 was calculated as 0.40 eV using Arrhenius plots (ln­(σT) vs 1000/T) as shown in Figure d.…”