XRD, 6 Li and 11 B MAS NMR, IR, and EPR of low-spin Ni 3ุ probes were used for the structural characterization of borondoped LiCoO 2 . Up to 5 atom % boron additives were shown to dissolve in trigonal LiCoO 2 . The structure of the CoO 2 sandwiches remained unaffected by this treatment. The boron e
Preparation and electrochemical properties of boron-doped mesoporous carbons
โ Scribed by Xiao-ling Zhai; Yan Song; Lin-jie Zhi; Jing-li Shi; Quan-gui Guo
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 35 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
tics and a fast charge-discharge rate with a time constant of 6 s.
The gravimetric specific capacitance and energy density of OMC oxidized at 60 ยฐC are 138 F g ร1 and 3.9 Wh kg ร1 , respectively, at a scanning rate of 5 mV s ร1 . These values are, respectively, 57% and 63% greater than for the un-treated one.
๐ SIMILAR VOLUMES
Two methods have been employed to prepare boron-doped carbon materials. One method utilized ion implantation to dope the surface region of vitreous carbon with up to 12 atomic % boron. The other method used CVD to prepare -1-2 micron thick carbon coatings with various boron contents (0 to 15 atomic
Ordered mesoporous carbon (COU-2) was synthesized by a soft-templating method. The COU-2 mesoporous carbon was activated by using KOH to improve its porosity. The mesopore size of COU-2 was 5.5 nm and did not change by the KOH activation. But, the BET surface area of COU-2 largely increased from 694