Your browser doesn't support javascript.
loading
Low pressure reversibly driving colossal barocaloric effect in two-dimensional vdW alkylammonium halides.
Gao, Yi-Hong; Wang, Dong-Hui; Hu, Feng-Xia; Huang, Qing-Zhen; Song, You-Ting; Yuan, Shuai-Kang; Tian, Zheng-Ying; Wang, Bing-Jie; Yu, Zi-Bing; Zhou, Hou-Bo; Kan, Yue; Lin, Yuan; Wang, Jing; Li, Yun-Liang; Liu, Ying; Chen, Yun-Zhong; Sun, Ji-Rong; Zhao, Tong-Yun; Shen, Bao-Gen.
Afiliación
  • Gao YH; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China.
  • Wang DH; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
  • Hu FX; College of Chemistry, Beijing Normal University, 100875, Beijing, PR China.
  • Huang QZ; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China. fxhu@iphy.ac.cn.
  • Song YT; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, PR China. fxhu@iphy.ac.cn.
  • Yuan SK; Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, PR China. fxhu@iphy.ac.cn.
  • Tian ZY; Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, PR China.
  • Wang BJ; Spallation Neutron Source Science Center, Dongguan, 523803, PR China.
  • Yu ZB; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China.
  • Zhou HB; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
  • Kan Y; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China.
  • Lin Y; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
  • Wang J; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China.
  • Li YL; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
  • Liu Y; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China.
  • Chen YZ; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
  • Sun JR; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China.
  • Zhao TY; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
  • Shen BG; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, PR China.
Nat Commun ; 15(1): 1838, 2024 Feb 28.
Article en En | MEDLINE | ID: mdl-38418810
ABSTRACT
Plastic crystals as barocaloric materials exhibit the large entropy change rivalling freon, however, the limited pressure-sensitivity and large hysteresis of phase transition hinder the colossal barocaloric effect accomplished reversibly at low pressure. Here we report reversible colossal barocaloric effect at low pressure in two-dimensional van-der-Waals alkylammonium halides. Via introducing long carbon chains in ammonium halide plastic crystals, two-dimensional structure forms in (CH3-(CH2)n-1)2NH2X (X halogen element) with weak interlayer van-der-Waals force, which dictates interlayer expansion as large as 13% and consequently volume change as much as 12% during phase transition. Such anisotropic expansion provides sufficient space for carbon chains to undergo dramatic conformation disordering, which induces colossal entropy change with large pressure-sensitivity and small hysteresis. The record reversible colossal barocaloric effect with entropy change ΔSr ~ 400 J kg-1 K-1 at 0.08 GPa and adiabatic temperature change ΔTr ~ 11 K at 0.1 GPa highlights the design of novel barocaloric materials by engineering the dimensionality of plastic crystals.
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido