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The optimally chemically striped surface promotes the generation of larger satellite droplets. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ma D, Chang S, Yang C. Effects of surfaces and nozzles on hydrodynamic characteristics of water film during spray impingement. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liu J, Shi X, Boateng B, Han Y, Chen D, He W. A Highly Stable Separator from an Instantly Reformed Gel with Direct Post-Solidation for Long-Cycle High-Rate Lithium-Ion Batteries. CHEMSUSCHEM 2019; 12:908-914. [PMID: 30614182 DOI: 10.1002/cssc.201802370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/11/2018] [Indexed: 06/09/2023]
Abstract
An efficient, scalable, and cost-effective approach was developed to synthesize a hierarchically constructed polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) separator from an instantly reformed solution. With partially dissolved PVDF-HFP as separator skeleton, the incorporation of warm PVDF-HFP solution in acetone led to a cross-linked structure before N-methyl-2-pyrrolidone (NMP) was added to solidify the hierarchical inner-bound structure of fresh PVDF-HFP. Owing to its hierarchical microporous structure, the separator exhibited remarkable wettability with a small contact angle of 18° and an electrolyte uptake of 114.81 %, leading to a high room-temperature ionic conductivity of 3.27×10-3 S cm-1 . The hierarchical structure provided short pathways for efficient ion transfer with more electrolyte trapped inside and small intervals between adjacent nanopores. The separator outperformed commercial separators, showing high rate capacities of 104.8 mAh g-1 at 5 C and 95 mAh g-1 at 10 C as well as unparalleled perfect capacity retention at 10 C after 1000 cycles.
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Affiliation(s)
- Jingna Liu
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, and Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, P.R. China
- School of Physics, University of Electronic Science and Technology, Chengdu, 611731, P.R. China
| | - Xingyi Shi
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, and Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, P.R. China
- School of Physics, University of Electronic Science and Technology, Chengdu, 611731, P.R. China
| | - Bismark Boateng
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, and Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, P.R. China
- School of Physics, University of Electronic Science and Technology, Chengdu, 611731, P.R. China
| | - Yupei Han
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, and Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, P.R. China
- School of Physics, University of Electronic Science and Technology, Chengdu, 611731, P.R. China
| | - Dongjiang Chen
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, and Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, P.R. China
- School of Physics, University of Electronic Science and Technology, Chengdu, 611731, P.R. China
| | - Weidong He
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, and Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, P.R. China
- School of Physics, University of Electronic Science and Technology, Chengdu, 611731, P.R. China
- Shenzhen Li-S Technology Co., Ltd., Shenzhen, P.R. China
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Novel Thermosensitive Core⁻Shell Surface Molecularly Imprinted Polymers Based on SiO₂ for the Selective Adsorption of Sulfamethazine. MATERIALS 2018; 11:ma11112067. [PMID: 30360464 PMCID: PMC6266568 DOI: 10.3390/ma11112067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/12/2018] [Accepted: 09/12/2018] [Indexed: 11/17/2022]
Abstract
In this research, a novel, sulfamethazine, thermosensitive, molecularly-imprinted polymer (MIP) with an obvious core–shell structure for the enrichment of sulfamethazine (SMZ), which involved temperature sensitive monomer N-Isopropylacrylamide, functional monomer methacrylic acid and cross-linking agents ethyleneglycol dimethacrylate (EGDMA) and N,N′-methylenebisacrylamide, was successfully compounded using the surface polymerization method. To ensure the best experimental group, we designed and compared three groups of controlled experiments of MIPs with different crosslinking agents. When the adsorption temperature was almost the lower critical solution temperature (LCST) of Poly(N-Isopropylacrylamide), the preparative MIPs showed outstanding adsorption capacity and specific identification to sulfamethazine. Moreover, this allowed the MIPs to better facilitate by combining the template molecules, as well as optimizing the imprinting factor. In addition, after 80 min, the adsorption of the MIPs leveled off and remained constant, and the adsorption quantity reached (a maximum of) at 8.1 mg·g−1.
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