Reversible barocaloric effects over a large temperature span in fullerite C₆₀

Abstract

Solid-state cooling methods based on field-driven first-order phase transitions are often limited by significant hysteresis and small temperature span, which increase the input work required to drive the cooling cycle...

Reversible colossal barocaloric effects near room temperature in 1-X-adamantane (X=Cl, Br) plastic crystals

“…To date, among plastic crystals only neopentane derivatives [10][11][12] and C60 [14] have been analyzed for BC applications and so there are still many compounds of this kind that remain unexplored. In this work we open up the BC analysis to two plastic crystals derived from adamantane (C10H16): 1-bromoadamantane (C10H15Br, 1-Br-ada for short) and 1-chloroadamantane (C10H15Cl, 1-Cl-ada for short).…”

Near-room-temperature reversible giant barocaloric effects in [(CH3)4N]Mn[N3]3 hybrid perovskite

“…With this motivation, a number of materials families have been investigated for barocaloric applications, which include magnetic alloys, [4][5][6][7][8][9] polymers, 10 oxyflourides, [11][12][13][14] ferroelectric oxides, 15,16 ferrielectric salts, 17 superionic conductors, 18,19 plastic crystals, [20][21][22][23] and hybrid organic-inorganic perovskites. [24][25][26] The latter have the potential to operate at hydrostatic pressures that are similar to those available in commercial compressors (r150 bar), specifically in the case of dicyanamide hybrid perovskites.…”

Giant and Reversible Barocaloric Effect in Trinuclear Spin‐Crossover Complex Fe3(bntrz)6(tcnset)6

“…The values for these figures of merit are among the largest reported values for giant and colossal caloric materials. [ 26,43 ]…”

“…Noteworthy, among a wealth of reported caloric materials, only a few exhibit both a large caloric effect and a negligible hysteresis under variable external field. [ 26,33,34 ]…”

“…2 (inverse BCE), [ 22 ] suggested that substantial caloric effects can be achieved by application of hydrostatic pressure as an independent tuning parameter. There exists a fertile playground for discovering novel giant‐BCE materials in diverse classes of compounds, both inorganic (e.g., AgI, [ 23 ] (NH 4 ) 2 SO 4 , [ 24 ] (Pr 4 N)[Mn(dca) 3 ] (Pr = propyl, dca = dicyanamide) [ 25 ] ) and organic (e.g., neopentylglycol, [ 9,10 ] tris(hydroxymethyl)aminomethane [ 9 ] and fullerene, C 60 [ 26 ] ).…”