Protic Ionic Solids and Liquids Based on the Guanidinium Cation as Phase-Change Energy-Storage Materials



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Energy storage worth its salt: A series of protic salts are synthesized and their thermal properties characterized; the guanidinium triflate and mesylate salts exhibit high heats of fusion (ΔHf), which indicates their promising role in energy storage applications, particularly in the temperature range of 100–200 °C.