Details

Autor(en) / Beteiligte

• Lin, Yang-Peng
• Xia, Bing
• Hu, Sanlue
• Liu, Zhen
• Huang, Xiao-Ying
• Xiao, Zewen
• Du, Ke-Zhao

Titel

Vacancy-ordered chloride perovskites for reversible release–storage of chlorine

Ist Teil von

• Journal of materials science, 2022-10, Vol.57 (39), p.18266-18276

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Elemental chlorine plays an irreplaceable role in many fields such as scientific study and the chemical industry. However, the highly toxic, corrosive, and volatile characteristics of Cl 2 increase the risks of leakage or explosion in chlorine storage and transportation. Using bulk materials to solidify Cl 2 is conduce to release chlorine gas on-demand securely. Herein, several vacancy-ordered chloride perovskites (i.e., Cs 2 PbCl 6 , Rb 2 PbCl 6 , (NH 4 ) 2 PbCl 6 , and Cs 4 Sb 2 Cl 12 ) for elemental chlorine solidification were synthesized by a Cl 2 -free solvothermal method. The experimental and theoretical results indicate that the release–storage of Cl 2 gas depends on the reversible redox between metal cations and chloridion. Both thermal heating and solvent soaking could trigger the release of Cl 2 in perovskites. The stability and Cl 2 storage performance (from 5.9 wt % to 16 wt %) of vacancy-ordered chloride perovskites can be tuned by composition engineering. Compared with the porous adsorption materials, Cs 2 PbCl 6 has the highest reversible storage capacity of Cl 2 . Graphical Abstract