|
1
|
Wang D, Zhang D, Wang Y, Guo G, Wang X, Sun Y. Spontaneous Phase Segregation Enabling Clogging Aversion in Continuous Flow Microfluidic Synthesis of Nanocrystals Supported on Reduced Graphene Oxide. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4315. [PMID: 36500939 PMCID: PMC9738359 DOI: 10.3390/nano12234315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Eliminating clogging in capillary tube reactors is critical but challenging for enabling continuous-flow microfluidic synthesis of nanoparticles. Creating immiscible segments in a microfluidic flow is a promising approach to maintaining a continuous flow in the microfluidic channel because the segments with low surface energy do not adsorb onto the internal wall of the microchannel. Herein we report the spontaneous self-agglomeration of reduced graphene oxide (rGO) nanosheets in polyol flow, which arises because the reduction of graphene oxide (GO) nanosheets by hot polyol changes the nanosheets from hydrophilic to hydrophobic. The agglomerated rGO nanosheets form immiscible solid segments in the polyol flow, realizing the liquid-solid segmented flow to enable clogging aversion in continuous-flow microfluidic synthesis. Simultaneous reduction of precursor species in hot polyol deposits nanocrystals uniformly dispersed on the rGO nanosheets even without surfactant. Cuprous oxide (Cu2O) nanocubes of varying edge lengths and ultrafine metal nanoparticles of platinum (Pt) and palladium (Pd) dispersed on rGO nanosheets have been continuously synthesized using the liquid-solid segmented flow microfluidic method, shedding light on the promise of microfluidic reactors in synthesizing functional nanomaterials.
Collapse
Affiliation(s)
- Dumei Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing 100124, China
| | - Dongtang Zhang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing 100124, China
| | - Yanan Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing 100124, China
| | - Guangsheng Guo
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing 100124, China
- Minzu University of China, Beijing 100081, China
| | - Xiayan Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing 100124, China
| | - Yugang Sun
- Department of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, PA 19122, USA
| |
Collapse
|
|
2
|
Continuous synthesis of TiO2-supported noble metal nanoparticles and their application in ammonia borane hydrolysis. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117479] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
|
3
|
Chen YX, Zhou D, Yang X, Guo XJ, Zhang JY, Liu JK. Enhancing Anticorrosion Properties of Micro–Nano Zinc Vanadate from Atomic Modulation Supplemented by Light Modification. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi-Xiang Chen
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Dan Zhou
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Xiu Yang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Xiao-Jiao Guo
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Jing-Yu Zhang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Jin-Ku Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
- Material Corrosion and Protection, Key Laboratory of Sichuan Province, Zigong, Sichuan 643000, P. R. China
| |
Collapse
|
|
4
|
Chao X, Xu F, Yao C, Liu T, Chen G. CFD Simulation of Internal Flow and Mixing within Droplets in a T-Junction Microchannel. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00800] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xu Chao
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feishi Xu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chaoqun Yao
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Tingting Liu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guangwen Chen
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| |
Collapse
|
|
5
|
Yang M, Gao Y, Liu Y, Yang G, Zhao CX, Wu KJ. Integration of microfluidic systems with external fields for multiphase process intensification. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116450] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
|
6
|
Kumaran R, Kumar AV, Ramaprabhu S, Subramanian V. Absorption-enhanced EMI shielding using silver decorated three-dimensional porous architected reduced graphene oxide in polybenzoxazine composites. NEW J CHEM 2021. [DOI: 10.1039/d1nj03536c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The proliferation of wearable and portable electronic media has increased the demand for highly efficient materials that can be used to create shields against electromagnetic interference.
Collapse
Affiliation(s)
- R. Kumaran
- Microwave Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai, Tamil Nadu-600036, India
| | - A. Vinaya Kumar
- Microwave Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai, Tamil Nadu-600036, India
| | - S. Ramaprabhu
- Alternative Energy and Nanotechnology Laboratory (AENL), Department of Physics, Indian Institute of Technology Madras, Chennai, Tamil Nadu-600036, India
| | - V. Subramanian
- Microwave Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai, Tamil Nadu-600036, India
| |
Collapse
|