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224 Polymer-based Nanocomposites for Energy and Environmental Applications
90
80
70
Hydrogen pressure (bar) 50 7th Abs @ 100C
60
11th Abs @ 100C
40
30
20 13th Abs @ 50C
24th Abs @ 125C
10
0
0 1 2 3 4 5 6 7 8
(A) Hydrogen concentration (wt.%)
90
8th Des @ 100C 80
70
Hydrogen pressure (bar)
14th Des @ 50C 60
50
22nd Des @ 125C
40
30
20
10
0
−9 −8 −7 −6 −5 −4 −3 −2 −1 0
(B) Hydrogen concentration (wt.%)
Fig. 8.4 Hydrogen (A) adsorption and (B) desorption PCT curves for the PANI-NF.
thermodynamic energy inefficiency of metal hydrides [13,15]. Conductivity of PANI
can be enhanced by doping with protonic acids [23,34,35]. Due to the acid treatment,
texture of the polymer is altered and may affect the creation of a microstructure with
small nanosized pores (30 nm). This might be advisable for adsorption of small mol-
ecules like hydrogen [34,35]. Hence, high surface and porosity are the important
