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Coassembled ionic liquid/laponite hybrids as effective CO2 adsorbents

Journal of Energy Chemistry 2017年第5期26卷 1026-1029页

作者： Yin Xu Yingjie Zhou Jingjing Liu Luyi Sun Department of Environmental Science and Engineering College of Environment and ResourcesXiangtan UniversityXiangtan 411105HunanChina Department of Materials Physics School of Physics and Optoelectronic EngineeringNanjing University of Information Science&TechnologyNanjing 210044JiangsuChina Department of Chemical&Biomolecular Engineering and Polymer Program Institute of Materials ScienceUniversity of Connecticut StorrsCT 06269USA

Hybrid adsorbents for COcapture were prepared by coassembling laponite（LP） nanosheets and 1-nbutyl-3-methylimidazolium chloride（BMIMCl）. The prepared BMIMCl/LP layered hybrids were systematically characterized. The interlayer distance of the BMIMCl/LP layered hybrids expanded with an increasing concentration of BMIMCl, indicating that cumulative BMIMCl was intercalated into the LP layers. The efficiency of BMIMCl toward COcapture was significantly enhanced after it was immobilized within LP layers.

关键词： CO2 capture Hybrid adsorbent Coassembly Laponite Ionic liquid

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Parametric solution of a small-large black hole coexistence curve

arXiv

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arXiv 2017年

作者： Li, Shanshan Li, Dan-Dan Mi, Li-Qin Li, Zhong-Heng College of Science Zhejiang University of Technology Hangzhou310032 China Fiber and Polymer Science Program North Carolina State University RaleighNC27695 United States College of Chemical Engineering Zhejiang University of Technology Hangzhou310032 China

We consider the first-order phase transition of a charged anti-de Sitter black hole, and find that the equation of state with the conditions of the two coexisting phases, leads to the two coupled equations about the thermodynamic volumes of small black hole and large black hole. By solving the equations, it is found that each reduced volume is only a function of the parameter ω. All properties of the coexistence curve can be studied from the two volume functions. In particular, each thermodynamic quantity is described by a piecewise analytic function. The demarcation point is located at ωd = 12(2√3 − 3). The thermodynamic function but not its derivative, is continuous at the point. This property is completely different from that of the ven der Waals fluid. Moreover, the thermodynamic behaviors as ω → 0 are discussed. From which one can easily obtain some critical exponents and amplitudes for small-large black hole phase transitions. Copyright © 2017, The Authors. All rights reserved.

关键词： Thermodynamics

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Corrigendum to "A systematic study of mechanical properties, corrosion behavior and biocompatibility of AZ31B Mg alloy after ultrasonic nanocrystal surface modification" [Mater. Sci. Eng. C 78 (2017) 1061-1071]

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Materials science & engineering. C, Materials for biological applications 2019年 98卷 1306页

作者： Xiaoning Hou Haifeng Qin Hongyu Gao Steven Mankoci Ruixia Zhang Xianfeng Zhou Zhencheng Ren Gary L Doll Ashlie Martini Nita Sahai Yalin Dong Chang Ye Department of Mechanical Engineering University of Akron Akron OH 44325 USA. Timken Engineered Surfaces Laboratories University of Akron Akron OH 44325 USA. Department of Mechanical Engineering University of California - Merced Merced CA 95343 USA. Department of Polymer Science University of Akron Akron OH 44325 USA. Department of Mechanical Engineering University of Akron Akron OH 44325 USA Department of Polymer Science University of Akron Akron OH 44325 USA School of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao 266042 China. Electronic address: xianfeng@***. Department of Geosciences University of Akron Akron OH 44325 USA Integrated Bioscience Program University of Akron Akron OH 44325 USA. Department of Mechanical Engineering University of Akron Akron OH 44325 USA. Electronic address: cye@uakron.edu.

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Multifunctional Materials: Strategic Design of Clay‐Based Multifunctional Materials: From Natural Minerals to Nanostructured Membranes (Adv. Funct. Mater. 16/2019)

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Advanced Functional Materials 2019年第16期29卷

作者： Yi Zhou Anna Marie LaChance Andrew T. Smith Hongfei Cheng Qinfu Liu Luyi Sun School of Geoscience and Surveying Engineering China University of Mining and Technology Beijing 100083 P. R. China Department of Chemical and Biomolecular Engineering and Polymer Program Institute of Materials Science University of Connecticut Storrs CT 06269 USA School of Environmental Science and Engineering Chang'an University Xi'an 710054 P. R. China Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education Chang'an University Xi'an 710054 P. R. China

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5th Anniversary Article: A Lesson from Plants: High-Speed Soft Robotic Actuators (Adv. Sci. 5/2020)

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Advanced science 2020年第5期7卷 2070024-2070024页

作者： Richard Baumgartner Alexander Kogler Josef M. Stadlbauer Choon Chiang Foo Rainer Kaltseis Melanie Baumgartner Guoyong Mao Christoph Keplinger Soo Jin Adrian Koh Nikita Arnold Zhigang Suo Martin Kaltenbrunner Siegfried Bauer Soft Matter Physics Institute of Experimental Physics Johannes Kepler University Linz Altenberger Straße 69 Linz 4040 Austria Soft Materials Lab Linz Institute of Technology LIT Johannes Kepler University Linz Altenberger Straße 69 Linz 4040 Austria Institute of High Performance Computing A*STAR 1 Fusionopolis Way #16-16 Connexis Singapore 138632 Singapore Institute of Polymer Science Johannes Kepler University Linz Altenberger Straße 69 Linz 4040 Austria Department of Mechanical Engineering University of Colorado Boulder Boulder CO 80309 USA Materials Science and Engineering Program University of Colorado Boulder Boulder CO 80303 USA Department of Mechanical Engineering National University of Singapore Singapore 117575 Singapore John A Paulson School of Engineering and Applied Sciences Harvard University 29 Oxford Street Cambridge MA 02138 USA

Explosion of ping‐pong balls that is caused by the rapid inflation of an elastomer membrane. The illustrated ultrafast actuation is based on a plant‐inspired mechanical instability that occurs in natural rubber and can be remotely triggered, presented in article number https://***/10.1002/advs.201903391 by Martin Kaltenbrunner and co‐workers. These new types of high‐speed soft actuators have potential applications in object sorting or grasping.

关键词： bioinspired dielectric elastomer actuators coupled dielectric elastomer balloons snap-buckling snap-through instabilities soft robotics for high-speed actuation

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Corrigendum to "Hierarchical structures on nickel-titanium fabricated by ultrasonic nanocrystal surface modification" [Mater. Sci. Eng. C 93 (2018) 12-20]

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Materials science & engineering. C, Materials for biological applications 2019年 98卷 1307页

作者： Xiaoning Hou Steven Mankoci Nicholas Walters Hongyu Gao Ruixia Zhang Shengxi Li Haifeng Qin Zhencheng Ren Gary L Doll Hongbo Cong Ashlie Martini Vijay K Vasudevan Xianfeng Zhou Nita Sahai Yalin Dong Chang Ye Department of Mechanical Engineering University of Akron Akron OH 44325 USA. Department of Polymer Science University of Akron Akron OH 44325 USA. Department of Mechanical Engineering University of California - Merced Merced CA 95343 USA. Department of Chemical and Biomolecular Engineering University of Akron Akron OH USA. Timken Engineered Surfaces Laboratories University of Akron Akron OH 44325 USA. Department of Mechanical and Materials Engineering University of Cincinnati Cincinnati OH 45221 USA. Department of Mechanical Engineering University of Akron Akron OH 44325 USA Department of Polymer Science University of Akron Akron OH 44325 USA School of Polymer Science and Engineering Qingdao University of Science and Technology Qingdao 266042 China. Electronic address: xianfeng@***. Department of Geosciences University of Akron Akron OH 44325 USA Integrated Bioscience Program University of Akron Akron OH 44325 USA. Department of Mechanical Engineering University of Akron Akron OH 44325 USA. Electronic address: cye@uakron.edu.

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Photovoltaic Devices: High Performance Roll‐to‐Roll Produced Fullerene‐Free Organic Photovoltaic Devices via Temperature‐Controlled Slot Die Coating (Adv. Funct. Mater. 6/2019)

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Advanced Functional Materials 2019年第6期29卷

作者： Seok‐In Na You‐Hyun Seo Yoon‐Chae Nah Seok‐Soon Kim Hyojung Heo Jueng‐Eun Kim Nicholas Rolston Reinhold H. Dauskardt Mei Gao Youngu Lee Doojin Vak CSIRO Manufacturing Bag 10 Clayton South Victoria 3168 Australia Professional Graduate School of Flexible and Printable Electronics and Polymer Materials Fusion Research Center Chonbuk National University Deokjin‐dong 664‐14 Jeonju‐si Jeollabuk‐do 561‐756 Republic of Korea Interdisciplinary Program in Creative Engineering School of Energy Materials and Chemical Engineering Korea University of Technology and Education Cheonan 31253 Korea Department of Nano & Chemical Engineering Kunsan National University 290–2 Miryong‐dong Gunsan‐si Jeollabuk‐do 573‐701 Republic of Korea Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology (DGIST) Daegu 42988 Korea Department of Applied Physics Stanford University Stanford CA 94305 USA Department of Materials Science and Engineering Stanford University Stanford CA 94305 USA

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Designing a Perylene Diimide/Fullerene Hybrid as Effective Electron Transporting Material in Inverted Perovskite Solar Cells with Enhanced Efficiency and Stability

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Angewandte Chemie 2019年第25期131卷

作者： Zhenghui Luo Fei Wu Teng Zhang Xuan Zeng Yiqun Xiao Tao Liu Cheng Zhong Xinhui Lu Linna Zhu Shihe Yang Chuluo Yang Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Department of Chemistry Wuhan University Wuhan 430072 P. R. China Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and Engineering Shenzhen University Shenzhen 518060 P. R. China Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy Faculty of Materials & Energy Southwest University Chongqing 400715 P. R. China Nano Science and Technology Program Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. China Department of Physics Chinese University of Hong Kong New Territories Hong Kong P. R. China Guangdong Key Lab of Nano-Micro Material Research School of Chemical Biology and Biotechnology Shenzhen Graduate School Peking University Xili University Town Shenzhen 518055 Guangdong P. R.China

Electron transport materials (ETM) play an important role in the improvement of efficiency and stability for inverted perovskite solar cells (PSCs). This work reports an efficient ETM, named PDI‐C 60 , by the combination of perylene diimide (PDI) and fullerene. Compared to the traditional PCBM, this strategy endows PDI‐C 60 with slightly shallower energy level and higher electron mobility. As a result, the device based on PDI‐C 60 as electron transport layer (ETL) achieves high power conversion efficiency (PCE) of 18.6 %, which is significantly higher than those of the control devices of PCBM (16.6 %) and PDI (13.8 %). The high PCE of the PDI‐C 60 ‐based device can be attributed to the more matching energy level with the perovskite, more efficient charge extraction, transport, and reduced recombination rate. To the best of our knowledge, the PCE of 18.6 % is the highest value in the PSCs using PDI derivatives as ETLs. Moreover, the device with PDI‐C 60 as ETL exhibits better device stability due to the stronger hydrophobic properties of PDI‐C 60 . The strategy using the PDI/fullerene hybrid provides insights for future molecular design of the efficient ETM for the inverted PSCs.

关键词： Elektronentransportmaterial Fullerene Perowskit-Solarzellen Perylendiimide Stromwandlungswirkungsgrad

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Mechanical properties of chemically modified Sansevieria trifasciata/natural rubber/high density polyethylene (STF/NR/HDPE) composites: Effect of silane coupling agent

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AIP Conference Proceedings 2018年第1期1940卷

作者： Nurzam Ezdiani Zakaria Azizah Baharum Ishak Ahmad 2School of Chemical Sciences and Food Technology Faculty of Science and Technology National University of Malaysia 43600 UKM Bangi Selangor Malaysia 3Food Processing and Packaging Program Food Science Technology Research Centre Malaysian Agricultural of Research and Development Institute P.O Box 12301 General Post Office 50774 Kuala Lumpur Malaysia 1Polymer Research Center Faculty of Science and Technology National University of Malaysia 43600 UKM Bangi Selangor Malaysia

The main objective of this research is to study the effects of chemical modification on the mechanical properties of treated Sansevieria trifasciata fiber/natural rubber/high density polyethylene (TSTF/NR/HDPE) composites. Processing of STF/NR/HDPE composites was done by using an internal mixer. The processing parameters used were 135°C for temperature and a mixing rotor speed of 55 rpm for 15 minutes. Filler loading was varied from 10% to 40% of STF and the fiber size used was 125 µm. The composite blends obtained then were pressed with a hot press machine to get test samples of 1 mm and 3 mm of thickness. Samples were evaluated via tensile tests, Izod impact test and scanning electron microscopy (SEM). Results showed that tensile strength and strain value decreased while tensile modulus increased when filler loading increased. Impact strength increased when filler loading increased and began to decrease after 10% of filler amount for treated composites. For untreated composites, impact strength began to decrease after 20% of filler loading. Chemical modification by using silane coupling agent has improved certain mechanical properties of the composites such as tensile strength, strain value and tensile modulus. Adding more amount of filler will also increase the viscosity and the stiffness of the materials.

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81-3: Effects of Flexoelectricity and Ion on the Flicker of Fringe Field Switching Liquid Crystal Display

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SID Symposium Digest of Technical Papers 2018年第1期49卷

作者： Yingfei Jiang Xiaochen Zhou Guangkui Qin Xiaoguang Xu SeungHee Lee Deng-Ke Yang Chemical Physics Interdisciplinary Program Liquid Crystal Institute Kent State University Kent Ohio 44242 USA BOE Technology Group Co. No. 9 Dize RD BDA Beijing 100171 China Department of Polymer Nano-Science and Technology Chonbuk National University Jeonju Jeonbuk 561-756 South Korea

Although LCDs are the leading technology for flat panel displays, their energy efficiency is low. One way to improve the energy efficiency is to decrease the driving frequency when static images are displayed. As the driving frequency is decreased, the transmittance of the display may vary with time, known as flickering. We carried out both experimental and simulation studies to investigate the origins that cause the flickering problem. Our results show that flexoelectric effect caused by non-uniform liquid crystal director configurations and ions in the liquid crystal are the main factors responsible for the flickering. We quantitatively analyzed the flickering caused by the two factors.

关键词： Flickering FFS LCD flexoelectricity ion

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