Abstract
The authors have studied the hydrogen adsorption performance of several types of lithium-doped KOH activated carbons. In the case of activated cokes, lithium doping improves their hydrogen adsorption affinity from 5.02 kg/m 3 to 5.86 kg/m3 at 303 K. Hydrogen adsorption density increases by around 17% after lithium doping, likely due to the fact that lithium doping is more effective for materials with micropores of 0.8 nm or smaller. The effects of lithium on hydrogen storage capacity vary depending on the raw material, because the lithium reagent can react with the material and alter the pore structure, indicating that lithium doping has the effect of plugging or filling the micropores and changing the structures of functional groups, resulting in the formation of mesopores. Despite an observed decrease in hydrogen uptake, lithium doping was found to improve hydrogen adsorption affinity. Lithium doping increases hydrogen uptake by optimizing the pore size and functional group composition.
| Original language | English |
|---|---|
| Pages (from-to) | 112-116 |
| Number of pages | 5 |
| Journal | Journal of Alloys and Compounds |
| Volume | 606 |
| DOIs | |
| Publication status | Published - Sep 5 2014 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Hydrogen storage capacity of lithium-doped KOH activated carbons. / Minoda, Ai; Oshima, Shinji; Iki, Hideshi; Akiba, Etsuo.
In: Journal of Alloys and Compounds, Vol. 606, 05.09.2014, p. 112-116.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hydrogen storage capacity of lithium-doped KOH activated carbons
AU - Minoda, Ai
AU - Oshima, Shinji
AU - Iki, Hideshi
AU - Akiba, Etsuo
PY - 2014/9/5
Y1 - 2014/9/5
N2 - The authors have studied the hydrogen adsorption performance of several types of lithium-doped KOH activated carbons. In the case of activated cokes, lithium doping improves their hydrogen adsorption affinity from 5.02 kg/m 3 to 5.86 kg/m3 at 303 K. Hydrogen adsorption density increases by around 17% after lithium doping, likely due to the fact that lithium doping is more effective for materials with micropores of 0.8 nm or smaller. The effects of lithium on hydrogen storage capacity vary depending on the raw material, because the lithium reagent can react with the material and alter the pore structure, indicating that lithium doping has the effect of plugging or filling the micropores and changing the structures of functional groups, resulting in the formation of mesopores. Despite an observed decrease in hydrogen uptake, lithium doping was found to improve hydrogen adsorption affinity. Lithium doping increases hydrogen uptake by optimizing the pore size and functional group composition.
AB - The authors have studied the hydrogen adsorption performance of several types of lithium-doped KOH activated carbons. In the case of activated cokes, lithium doping improves their hydrogen adsorption affinity from 5.02 kg/m 3 to 5.86 kg/m3 at 303 K. Hydrogen adsorption density increases by around 17% after lithium doping, likely due to the fact that lithium doping is more effective for materials with micropores of 0.8 nm or smaller. The effects of lithium on hydrogen storage capacity vary depending on the raw material, because the lithium reagent can react with the material and alter the pore structure, indicating that lithium doping has the effect of plugging or filling the micropores and changing the structures of functional groups, resulting in the formation of mesopores. Despite an observed decrease in hydrogen uptake, lithium doping was found to improve hydrogen adsorption affinity. Lithium doping increases hydrogen uptake by optimizing the pore size and functional group composition.
UR - http://www.scopus.com/inward/record.url?scp=84899569405&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899569405&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2014.04.012
DO - 10.1016/j.jallcom.2014.04.012
M3 - Article
VL - 606
SP - 112
EP - 116
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -