| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.2984 |
| 발표분야 |
에너지 |
| 제목 |
Hydrogen storage properties of micro-balls and flower shaped zinc oxide |
| 초록 |
Here we are presenting the hydrogen storage properties of zinc oxide micro-balls and flowers synthesized by the solution methods at a very low temperature about 70°C in 12 hrs at pH 12.6 by using zinc acetate dihydrate, sodium hydroxide and capping molecule hydroxylamine hydrochloride (NH2OH.HCl).We noticed that when the concentration of hydroxylamine hydrochloride varies from 0.9M, 1M and 1.5M themorphology of micro balls changes to the flower shaped structure and at the same time the hydrogen absorption is decreases from 1.21 to 0.97 weight%. The morphological characterizations were carried out by using FESEM and transmission electron microscopy and it reveals that the size of individual mcroballs and flowers are about 3-4μm in diameter. The compositional properties of the powder sample were characterized by the IR spectroscopy and show the characteristic peak of zinc oxide at 423cm-1 and UV-vis absorption spectroscopy presents the standard peak of zinc oxide at 375nm. |
| 저자 |
송민우, Rizwan Wahab, S. G. Ansari, 김영순, 이경섭, 신형식
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| 소속 |
전북대 |
| 키워드 |
hydroxylamine hydrochloride; micro balls
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| E-Mail |
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| 원문파일 |
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