Hydrogen uptake properties of a nanoporous PIM-1–polyaniline nanocomposite polymer. Issue 39 (24th September 2019)

• Record Type: Journal Article
• Authors: Ramimoghadam, Donya; Brown, Christopher L.; Boyd, Sue E.; Gray, Evan MacA.; Webb, Colin J.
• Is Part Of: Journal of materials chemistry. Volume 7:Issue 39(2019)
• Page Start: 22436
• Page End: 22443
• Publication Date: 2019-09-24
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c9ta04844h
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : The hydrogen storage behaviour of a PIM-1–polyaniline nanocomposite was studied for the first time at both ambient and cryogenic temperature. Abstract : The hydrogen storage behaviour of a PIM-1–polyaniline nanocomposite was studied for the first time at both ambient and cryogenic temperature. The porosity of the polymers was investigated using nitrogen sorption measurements. A high BET surface area of 875 m 2 g −1 was obtained for the synthesised PIM-1. Though the BET surface area decreased upon doping the PIM-1 with PANi, the mean micropore size decreased and micropore volume increased. Maximum excess hydrogen uptake capacities of 2.3 ± 0.5 wt% (298 K and 316 bar) and 6.5 ± 0.3 wt% (77 K and 110 bar) were demonstrated. These results are a significant improvement over the hydrogen uptake of either of the constituent polymers, and this has been attributed to a combination of the active sites present in polyaniline and the microporous nature of PIM-1.