Nanomaterials for Environmental Burden Reduction, Waste Treatment and Non-Point Source Pollution Control - Nanotechnologies for Water Environment Applications - page 448

five nanomaterials (i.e., single-walled carbon nanotubes, buckyballs (C 60 ), one variety of
quantum dots, alumoxane nanoparticles, and nanotitanium dioxide); their results indicate
that relative environmental risk from manufacturing each of these five materials is
comparatively low in relation to other common industrial manufacturing processes.

T able 14.1 Hydrogen storage capacity of different nanomaterials a .
Material

Density
(wt%)

Temperature
(K)

Pressure
(mPa b )

> 10 wt%
GNFs (Platelet)
Li-MWNTs
K-MWNTs
GNFs (Tubular)
CNFs
Li/K-GNTs (SWNT)
GNFs
Within 1-10 wt%
SWNTs (Low Purity)
SWNTs (High Purity)
CN nanoballs
Nano graphite
SWNTs (High Purity + Ti Alloy)
GNFs
CNFs
MWNTs
MOF-5
SWNTs (High Purity + Ti Alloy)
SWNTs (50% Purity)
Li-MWNTs
IRMOF-8
SWNT (50% Purity)
K-MWNTs
(9,9) Array
IRMOF-6
MOF-5
MOF-5
< 1 wt%
MWNTs
CNF
(9,9) Array
“Graphitic” Carbon (BASF, Germany)
SWNTs
“Active carbon” (CECA, France)
Various
SWNT (+ Ti Alloy)

53.68
20
14
11.26
~10
~10
~10
5-10
8.25
8
7.4
6-7
6.5
~5
~5
4.5
3.5-4.5
4.2
~2.5
2.3
~2
~1.8
1.8
1.1
1.0
1.0
< 1
0.1-0.7
0.5
0.3
~0.1
0.1
< 0.1
0

RT
~473-673
< 313
RT
RT
RT
RT
273
80
573
RT
~300-700
RT
RT
RT
78
~300-600
RT
~473-673
RT
RT
< 313
77
RT
RT
RT
RT
RT
RT
RT
300-520
RT
RT
RT

11.35
0.1
0.1
11.35
10.1
8-12
8-12
0.04
7.18
0.1
1
0.07
~12
10.1
~10
2
0.07
10.1
0.1
1
Echem
0.1
10
1
1
2
Echem
0.1-10.5
10
1
0.1
1
3.5
0.08

a Extracted from Dillon et al. (2003), and Rosi et al. (2003). b 1 mPa = 10 bar.