Influence of Metal-Organic Framework Porosity on Hydrogen Generation from Nanoconfined Ammonia Borane

Jing Yang Chung, Chi Wei Liao, Yi Wei Chang, Bor Kae Chang, Hao Wang, Jing Li, Cheng Yu Wang

研究成果: 雜誌貢獻期刊論文同行評審

31 引文 斯高帕斯(Scopus)

摘要

Hydrogen released from chemical hydride ammonia borane (AB, NH3BH3) can be greatly improved when AB is confined in metal-organic frameworks (MOFs), showing reduced decomposition temperature and suppressed unwanted byproducts. However, it is still debatable whether the mechanism of improved AB dehydrogenation is due to catalysis or nanosize. In this research, selected MOFs (IRMOF-1, IRMOF-10, UiO-66, UiO-67, and MIL-53(Al)) were chosen to explore both catalytic effect of the metal clusters and the manipulation of pore size for nanoconfinement by variations in ligand length. When AB particle size was restricted by the controlled micropores of MOFs, we observed that the decomposition temperature was not correlated to the MOF catalytic environment, but inversely proportional to the reciprocal of the particle size. The results correspond well with the derived thermodynamic model for AB decomposition considering surface tension of nanoparticles.

原文???core.languages.en_GB???
頁(從 - 到)27369-27378
頁數10
期刊Journal of Physical Chemistry C
121
發行號49
DOIs
出版狀態已出版 - 14 12月 2017

指紋

深入研究「Influence of Metal-Organic Framework Porosity on Hydrogen Generation from Nanoconfined Ammonia Borane」主題。共同形成了獨特的指紋。

引用此