1. Realizing overall trade-off of barocaloric performances in 1-bromoadamantane-graphene composites.
- Author
-
Bao, Changjiang, Guan, Ziqi, Li, Zhenzhuang, Wang, Haoyu, Feng, Yuanwen, Guo, Qing, Zhang, Kun, Wang, Yanxu, Zuo, Liang, and Li, Bing
- Subjects
ADIABATIC temperature ,PLASTIC crystals ,PHASE transitions ,THERMAL conductivity ,HYSTERESIS - Abstract
• The overall trade-off of barocaloric performances is achieved in 1-bromoadamantane-graphene composites. • The pressure-induced adiabatic temperature change is comparable to the prototype neopentylglycol. • The thermal hysteresis is only one-half of that of the prototype neopentylglycol. • The thermal conductivity is boosted by one order of magnitude. Barocaloric materials have attracted extensive attention for their promising applications in low-carbon refrigeration technology. Given that the performances of barocaloric materials are intrinsically and even inversely correlated, an overall trade-off is necessitated. Here, we have prepared the 1-bromoadamantane-graphene composite (15 wt.% graphene), whose pressure-induced entropy change, pressure-induced adiabatic temperature change, and thermal hysteresis nearly remain unchanged. The pressure-induced adiabatic temperature change is comparable to the prototype neopentylglycol while the thermal hysteresis is much smaller. More importantly, by incorporating the additive the thermal conductivity has been elevated by 10 times. Such a combination renders the composite state-of-the-art barocaloric performances and is expected to benefit the design of barocaloric refrigeration technology. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF