Rchr
J-GLOBAL ID：202001007025881509
Update date: Mar. 05, 2026
Zheng Qingxin
テイ ケイシン | Zheng Qingxin
Affiliation and department：
Job title：
Associate Professor
Homepage URL (1)：
http://www.che.tohoku.ac.jp/~scw/eng/member/
Research field (4)：
Catalytic processes and resource chemistry
, Structural and functional materials
, Chemical reaction and process system engineering
, Earth resource engineering, energy science
Research keywords (11)：
Catalyst
, Hydrothermal treatment
, Hydrothermal extraction
, Micro-nano materials
, Microalgae
, Biomass conversion
, Low-rank coal
, Lithium-ion battery recycling
, Dimethyl ether extraction
, Hydrothermal synthesis
, Supercritical fluids
Research theme for competitive and other funds (3)：
- 2022 - 2024 Proposal of an intra-regional circulation system for LMO-based lithium-ion batteries
- 2021 - 2024 Low/no-corrosion leaching of spent lithium-ion battery cathode materials in hydrothermal water using amino acid or mixed organic acids as the leachant
- 2022 - 2023 Development of environmentally-friendly hydrometallurgy technology for constructing the recycling process of ternary lithium-ion batteries
Papers (39)：
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Xuesong Yao, Qingxin Zheng, Vetozora Tjimaka Tjambiru, Panpan Wu, Zixian Li, Aiko Miyamoto, Masaru Watanabe. High-Selectivity Separation of Lithium from Spent Lithium-Ion Battery Leachates Using Surface-Modified Commercial Nanofiltration Membranes. Environmental Science & Technology. 2025. 59. 43. 23542-23555
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Panpan Wu, Qingxin Zheng, Tian Meng, Xiangyu Zhong, Masaru Watanabe. Evaluation of the Corrosion Behavior of Various Metallic Materials for Material Selection of Citric Acid Hydrothermal Leaching Apparatus for Lithium-Ion Battery Recycling. ACS Sustainable Chemistry & Engineering. 2025. 13. 29. 11485-11502
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Yu Su, Qingxin Zheng, Yoshiki Suga, Masaru Watanabe. Measurement of Solubility of Terephthalic Acid in Water Under Hydrothermal Conditions. The Journal of Supercritical Fluids. 2025. 218. 106497(1)-106497(9)
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Qingxin Zheng, Yoshiki Suga, Yu Su, Hiroya Yamaguchi, Masaru Watanabe. Simultaneous Material and Chemical Recycling of Waste PET/PE Multi-Layer Films under Hydrothermal Conditions. Angewandte Chemie International Edition. 2024. 136. 44. e202410888-e202410888
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Zixian Li, Qingxin Zheng, Akitoshi Nakajima, Zhengyang Zhang, Masaru Watanabe. Organic Acid-Based Hydrothermal Leaching of LiFePO4 Cathode Materials. Advanced Sustainable Systems. 2024. 8. 4. 2300421(1)-2300421(12)
ｍore...
MISC (5)：
Patents (4)：
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System for assembling chemical experimental apparatus
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A method to produce manganese citrate
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The process for producing an aromatic compound
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A method to produce benzene and naphthalene
Books (3)：
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Latest Trends in PET Bottle Recycling -Materials, Chemicals, and Biotechnology
CMC RESEARCH Ltd. 2024 ISBN:9784910581521
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Rare-metal recovery and recycling technologies from lithium-ion batteries
NTS Inc. 2024 ISBN:9784860438845
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The technology of rare metal recovery and recycling from lithium-ion batteries
2024 ISBN:9784860438852
Lectures and oral presentations (64)：
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Charge-Enhanced Nanofiltration Membranes for Highly Efficient Recycling of Spent Lithium-Ion Batteries
(12th International Membrane Science & Technology Conference (IMSTEC 2025) 2025)
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Membrane Separation for Efficient Recovery of Valuable Metals from Spent Lithium-Ion Batteries
(SCEJ 56th Autumn Meeting 2025)
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Corrosion Behavior of Citric Acid on Various Steel Materials During the Hydrothermal Leaching of Lithium-ion Battery Cathode materials
(SCEJ 56th Autumn Meeting 2025)
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Development of hydrothermal leaching using mixed organic acids from spent-NCM cathode materials and metal Isolation process
(SCEJ 56th Autumn Meeting 2025)
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Development of Hydrothermal Process for the Recovery of PE and PET Monomers from PET/PE Composite Film
(SCEJ 56th Autumn Meeting 2025)
ｍore...
Education (2)：
- 2006 - 2011 Shandong University National Key Laboratory for Crystal Materials Materials science
- 2002 - 2006 Shandong University of Technology School of Material s Science and Engineering Materials Chemistry
Work history (6)：
- 2025/04 - 現在 Tohoku University Graduate School of Engineering, Research Center of Supercritical Fluid Technology Associate Professor
- 2020/08 - 2025/03 Tohoku University Graduate School of Engineering Research Center of Supercritical Fluid Technology Assistant professor (specially appointed)
- 2019/10 - 2020/07 Tohoku University Graduate School of Engineering Research Center of Supercritical Fluid Technology Researcher
- 2017/10 - 2019/09 Nagoya University Graduate School of Engineering Materials Process Engineering Researcher
- 2013/04 - 2017/09 National Institute of Advanced Industrial Science and Technology AIST Postdoctoral Researcher
- 2011/09 - 2013/03 Kumamoto University Faculty of Engineering Department of Applied Chemistry and Biochemistry Researcher
Show all
Awards (2)：
- 2022/09 - The Society of Chemical Engineers, Japan (SCEJ) Outstanding Paper Award of 2021 Application of Hydrothermal Leaching Technology to Spent LIB Cathode Materials with Citric Acid Using Batch-type Device and Flow System
- 2015/10 - The Japan Institute of Energy Presentation award Hydrothermal Oxidation and Decarboxylation of Brown Coal
Association Membership(s) (4)：
The International Society for the Advancement of Supercritical Fluids (ISASF)
, The Society of Chemical Engineers, Japan (SCEJ)
, The Royal Society of Chemistry
, Japan Institute of Energy
