| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2086 |
| 발표분야 |
에너지 |
| 제목 |
Fabrication, Characterization and Lithium adsorption of Acid-Treated Dilithium Dioxido(oxo)manganese (Li2MnO3) adsorbents |
| 초록 |
Acid-treated Li2MnO3 were synthesized by solid-state reaction between Li2CO3 and MnCO3 at 500-700°C. HCl, H2SO4 and HNO3 solutions (2.5 N) were used to leach Li+ prior to adsorption experiments. Elemental compositions of the adsorbents were determined by ICP-MS, average oxidation state determination and acid-base titration. XRD, FE-SEM, thermal analysis and BET surface area analyses were also conducted. Li+ leaching reveals that HCl treatment exhibited the highest extraction (83%). However, the physical structure of Li2MnO3 was compromised in HCl as indicated by high Mn4+ leaching (22%); those in H2SO4 and HNO3 were only ＜ 2%. Improved stability and reduced Li+ leaching were observed in adsorbents prepared at higher temperatures. Further enhancements on the stability and adsorption properties are currently under investigation. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012R1A2A1A01009683). |
| 저자 |
Arnel Beltran1, Grace M. Nisola2, Sehee Oh3, Rey Eliseo Torrejos1, Monika Garg2, 정욱진3
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| 소속 |
1Department of Energy Science and Technology(DEST), 2Energy and Environment Fusion Technology Center (E2FTC), 3명지대 |
| 키워드 |
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| E-Mail |
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| 원문파일 |
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