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Cho WC, Kim HJ, Lee HI, Seo MW, Ra HW, Yoon SJ, Mun TY, Kim YK, Kim JH, Kim BH, Kook JW, Yoo CY, Lee JG, Choi JW. 5L-Scale Magnesio-Milling Reduction of Nanostructured SiO 2 for High Capacity Silicon Anodes in Lithium-Ion Batteries. Nano Lett 2016; 16:7261-7269. [PMID: 27775893 DOI: 10.1021/acs.nanolett.6b03762] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nanostructured silicon (Si) is useful in many applications and has typically been synthesized by bottom-up colloid-based solution processes or top-down gas phase reactions at high temperatures. These methods, however, suffer from toxic precursors, low yields, and impractical processing conditions (i.e., high pressure). The magnesiothermic reduction of silicon oxide (SiO2) has also been introduced as an alternative method. Here, we demonstrate the reduction of SiO2 by a simple milling process using a lab-scale planetary-ball mill and industry-scale attrition-mill. Moreover, an ignition point where the reduction begins was consistently observed for the milling processes, which could be used to accurately monitor and control the reaction. The complete conversion of rice husk SiO2 to high purity Si was demonstrated, taking advantage of the rice husk's uniform nanoporosity and global availability, using a 5L-scale attrition-mill. The resulting porous Si showed excellent performance as a Li-ion battery anode, retaining 82.8% of the initial capacity of 1466 mAh g-1 after 200 cycles.
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Affiliation(s)
- Won Chul Cho
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
- Department of Advanced Energy and Technology, Korea University of Science and Technology , 217 Gajeong-ro, Yuesong-gu, Daejeon 34113, Republic of Korea
| | - Hye Jin Kim
- Graduate School of Energy, Environment, Water, and Sustainability (EEWS) and KAIST Institute NanoCentury, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hae In Lee
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
| | - Myung Won Seo
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
- Department of Advanced Energy and Technology, Korea University of Science and Technology , 217 Gajeong-ro, Yuesong-gu, Daejeon 34113, Republic of Korea
| | - Ho Won Ra
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
| | - Sang Jun Yoon
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
- Department of Advanced Energy and Technology, Korea University of Science and Technology , 217 Gajeong-ro, Yuesong-gu, Daejeon 34113, Republic of Korea
| | - Tae Young Mun
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
| | - Yong Ku Kim
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
| | - Jae Ho Kim
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
- Department of Advanced Energy and Technology, Korea University of Science and Technology , 217 Gajeong-ro, Yuesong-gu, Daejeon 34113, Republic of Korea
| | - Bo Hwa Kim
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
| | - Jin Woo Kook
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
| | - Chung-Yul Yoo
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
| | - Jae Goo Lee
- Korea Institute of Energy Research (KIER) , 152 Gajeong-ro, Yuesong-gu, Daejeon 34129, Republic of Korea
- Department of Advanced Energy and Technology, Korea University of Science and Technology , 217 Gajeong-ro, Yuesong-gu, Daejeon 34113, Republic of Korea
| | - Jang Wook Choi
- Graduate School of Energy, Environment, Water, and Sustainability (EEWS) and KAIST Institute NanoCentury, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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Kim BH, Seo MW, Kook JW, Choi HM, Ra HW, Yoon SJ, Mun TY, Kim YK, Lee JG, Rhee YW. Flow Behavior and Mixing Characteristics of Rice Husk/Silica Sand/Rice Husk Ash. Korean Chemical Engineering Research 2016. [DOI: 10.9713/kcer.2016.54.4.533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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