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Liu M, Liu J, Sun J, Zhu Y, Chen K, Zhong H, Ouyang L, Liu H. In Situ Formation of Li 2SiO 3-Li-NaCl Interface on Si and Its Effect on Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2023; 15:20917-20924. [PMID: 37096938 DOI: 10.1021/acsami.2c23285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Silicon has emerged as a competitive candidate for hydrolytic hydrogen production due to its high theoretical hydrogen yield, low cost, and on-demand availability. However, the hydrolysis reaction is extremely restrained by passivated SiO2, including the original one on the Si surface and the generated one during hydrolysis, and almost no hydrogen is produced in pure water. Herein, the original SiO2 surface has been effectively removed by milling micro-Si mixed with a small amount of Li metal and NaCl. An artificial soluble interface on Si has been established containing Li2SiO3, Li, and NaCl. Once micro-Si is placed into water, fresh Si surface can be exposed and a weak LiOH solution can be generated due to the fast dissolution of the interface layer, resulting in the rapid liberation of hydrogen gas. Accordingly, the modified micro-Si displays a significantly enhanced hydrogen production in pure water at 30 °C (1213 mL g-1 H2 within 3.0 h), which is 2.0 and 4.7 times higher than that observed for ball-milled Si and raw Si in 0.06 M LiOH solution, respectively. In addition, it also exhibited an outstanding operation compatibility for practical uses. This work has proposed a green, effective, and scalable strategy to promote hydrogen production from the hydrolysis of Si-based systems.
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Affiliation(s)
- Mili Liu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510641, PR China
| | - Jiangwen Liu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510641, PR China
| | - Jiangyong Sun
- Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510651, PR China
| | - Yongyang Zhu
- Institute of Resources Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510650, PR China
| | - Kang Chen
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510641, PR China
| | - Hao Zhong
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510641, PR China
| | - Liuzhang Ouyang
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510641, PR China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510641, PR China
| | - Hui Liu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510641, PR China
- School of Chemistry and Material Science, Hunan Agricultural University, Changsha 410128, PR China
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Wang Y, Chang F, Wei Z, Yang C, Liu DG, Yan T, Pang Q, Chen S. Photocatalytic NO removal by WO 3 samples prepared via a ball milling treatment under different parameters. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2068586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yuqing Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, P.R. China
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Fei Chang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Zhixun Wei
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Cheng Yang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Deng-guo Liu
- Shanghai Environmental Monitoring Center, Shanghai, P.R. China
| | - Tianyi Yan
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Qingyun Pang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, P.R. China
| | - Shengwen Chen
- School of Environmental and Materials Engineering, Shanghai Polytechnic University, Shanghai, P.R. China
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