Ho Kyun Jung, U Hyeok Choi * Department of Polymer Engineering, Pukyong National University Corresponding author :

Slides:

Advertisements

Similar presentations

Ruizhen Li School of Chemistry and Environment South China Normal University Guangzhou China Study on Lead Based Rare Earth Alloys for Positive Grids of.

Advertisements

Polymer graphite composite anodes for Li-ion batteries Basker Veeraraghavan, Bala Haran, Ralph White and Branko Popov University of South Carolina, Columbia,

October 2007 New Process and Larger Molecules Overturn Conventional Wisdom about Lithium–Polymer Electrolyte Batteries Principal Investigator: Nitash P.

Molten Salt Method of Preparation and Optimization of TiO 2 Phases Chan Tze Yang, Aloysius 1,2, M.V. Reddy 2,3 *, S. Adams 3 and B.V.R. Chowdari 2 1 SRP.

Structural and energy storage studies of Copper Oxide Mei Shiyuan 1, M.V. Reddy 2, 3*, S. Adams 3, B.V.R.Chowdan 2 1 SRP student, Hwa Chong Institution,

References References Multifunctional Polymer Nanocomposites Case Study of Conductive Polypyrrole/SiC Particulate Nanocomposites The combined properties.

Influence of Substrate Surface Orientation on the Structure of Ti Thin Films Grown on Al Single- Crystal Surfaces at Room Temperature Richard J. Smith.

Porous organic frameworks for energy related applications Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, Jingzhi Lu and.

The total energy as a function of collective coordinates, ,  for upright and tilted structures are plotted. Two types of frequency spectrum are calculated:

Terahertz Conductivity of Silver Nanoparticles Abstract: The electrical conductivity for bulk metal is described by the well-known Drude model. As the.

 Rate (how fast) at which charges pass a given point  Measured in Amperes or amps  Current (I)  Electrons moving in a wire make up current and provide.

Chemical & Process Engineering Novel Material for the Separation of Mixtures of Carbon Dioxide and Nitrogen Mohamed A. M. Elsayed Supervisors : Prof. P.

Composite Material with Structural and Power Storage Capabilities Chris Simpson.

Chemical Bonding. By the end of this lesson you will be able to: Name and describe the 3 types of bonds and how they are different List possible compounds.

Simple Designed Synthesis of Graphene Based Nanocomposites for Energy Related Applications Yuanzhe Piao Graduate school of Convergence Science and Technology,

Studies on Direct Methanol Fuel Cell: An electro-chemical energy conversion device Jay Pandey Research Scholar Department of Chemical Engineering Indian.

Impedance spectroscopy of composite polymeric electrolytes - from experiment to computer modeling. Maciej Siekierski Warsaw University of Technology, Faculty.

Synthesis Rutile titania nanofibers are synthesized using electrospinning and sol-gel coating techniques. A large sheet of nylon-6 nanofibers are synthesized.

Photoluminescence of Mesoporous Silica Film Impregnated with an Erbium Complex Oun-Ho Park †, Jae Young Bae, Ji-in Jung, and Byeong-Soo Bae Laboratory.

Influence of oxygen content on the 1.54 μm luminescenceof Er-doped amorphous SiO x thin films G.WoraAdeola,H.Rinnert *, M.Vergnat LaboratoiredePhysiquedesMate´riaux.

Reporter: Yu-Syuan Lu Advisor: Wei-Tong Liao Date:05/18/2011.

Bond Types. Bond Types: At the conclusion of our time together, you should be able to: 1. Identify 5 different bond types 2. Explain each bond type 3.

Nitrogen-Doped Carbon

Studies of the Properties of Polymer Nanocomposites Mechanical Properties  Tensile Measurements  Dynamic Mechanical Analysis (DMA) Morphology  Scanning.

Effectiveness and mechanisms of mercury sorption by biochars from invasive Brazilian pepper at different temperatures Xiaoling Dong 1, Lena Q Ma 1*, Yingjia.

Investigation of electrode materials with 3DOM structures Antony Han Chem 750/7530.

Despite tremendous progress made in the synthesis of surface-grafted polymer brushes, there have been few reports of polymer brushes in organic electronics.

Experiments for Silica Characterization Rachel Feltner.

Department of Chemistry, Clemson University, Clemson, SC 29634

Synthesis and Properties of Magnetic Ceramic Nanoparticles Monica Sorescu, Duquesne University, DMR Outcome Researchers at Duquesne University.

Chapter 1 Diffusion in Solids. Diffusion - Introduction A phenomenon of material transport by atomic migration The mass transfer in macroscopic level.

Chemical Bonding. By the end of this lesson you will be able to: Name and describe the 3 types of bonds and how they are different List possible compounds.

Folie 1 Synthesis of metal oxide aerogels from their salts Helmut Schäfer, Kathleen Heinrich, Barbara Milow, Lorenz Ratke Institut für Materialphysik im.

Chemical Bonding. Covalent Bonds Formed when 2 atoms share electrons.

Material Processing of Polystyrene Boron Nitride Nanocomposites Raed Ayoob Supervisor(s): Thomas Andritsch and Alun Vaughan 16 September 2015 Early Career.

Application of room temperature ionic liquids for in situ ATR-FTIR spectroscopy of doped poly(para-phenylene) By Michal Wagner NGS-Nano meeting,

MIT Amorphous Materials 10: Electrical and Transport Properties Juejun (JJ) Hu 1.

M. El-Sayed1, M. Ramzi2, R. Hosny2*, M. Fathy3 and Th. Abdel Moghny3

FORENSIC TESTS PROTOCOL TO ANALYSE FAILURED TIRES FROM ROAD ACCIDENTS

Chemical Bonding.

EMERGING TRENDS IN SEPARATION SCIENCE AND TECHNOLOGY - SESTEC 2016

Nanowire Supercapacitors

Dispersion of Carbon Nanotubes in Alumina using a Novel Mixing Technique and Spark Plasma Sintering of the Nanocomposites with Improved Fracture Toughness.

Aerogels for 3D Integration of Nanoelectronics

SURFACE CHARACTERIZATION AND HYSTERISIS STUDIES

Fe-Al binary Oxide Nano-Sorbent: Synthesis, Characterization and Phosphate Sorption Behavior Tofik Ahmed, Abi.M.Taddesse, Tesfahun Kebede, Girma Goro.

Wide Frequency Dependence of Impedance, Electric Modulus and Conductivity of Lead-Free Ba0.5Sr0.5Ti(1-X)InxO3 Ceramics H.Z. Akbas1, Z. Aydin1, A.Colak1,

INTRODUCTION & OBJECTIVE

Synthesis and Characterization of ZnO-CdS Core-Shell Nanohybrids by Thermal Decomposition Method and Studies on Their Charge Transfer Characteristics Rama.

APTES-BNNs / Epoxy Composites

STUDIES ON PHOTOCATALYTIC ACTIVITY OF NANOCOMPOSITES OF NITROGEN DOPED GRAPHENE WITH METAL MOLYBDATES (NG-MMoO4) Manesh Kumar and H. N. Sheikh* Department.

Syed Kamran Sami1, 2, Jung-Yong Seo1,Tae-Il Kim1, and Chan-Hwa Chung1*

PAP Chapter 6 CHEMICAL BONDING

Mechanistic Studies of Thermal Decomposition of Nickel-Gallium Layered Double Hydroxides Lorenzo Milani Department of Chemical Engineering, University.

Types of Solids SCH 4U1.

بسم الله الرحمن الرحيم membrane characterization methods Mohammed Fuseini Chemical and Petrochemical Engineering Department Egypt-Japan University of Science.

Volume 3, Issue 2, Pages (August 2017)

Synthesis Results Future Work Conclusions

Quan Pang, Xiao Liang, Abhinandan Shyamsunder, Linda F. Nazar Joule

MIT Amorphous Materials 10: Electrical and Transport Properties

Catalyst coated membrane for zero-gap alkaline water electrolyzer

Structure Bonding and Properties

Z. Leśnikowski, E. Przelazły, K. Dziedzic-Kocurek, J. Stanek

Characteristics of Chemical Bonds

Comet Tempel 1 as seen last week by the Stardust-NeXT spacecraft.

N.Yavarishad1, T.Hosseini1, E.Kheirandish1,C.P.Weber2 and N.Kouklin1

Dielectric studies and ac conductivity of terbium fumarate heptahydrate single crystals. Dr. M.D.Shah Deptt. of Physics GDC Tral.

Sistemi elettrochimici di accumulo e conversione dell’energia

by Apoorv Shanker, Chen Li, Gun-Ho Kim, David Gidley, Kevin P

Presentation transcript:

Ho Kyun Jung, U Hyeok Choi * Department of Polymer Engineering, Pukyong National University Corresponding author :

Synthesis and Lithium Ion Conduction of Silica Aerogel Single-Ion Conductors Containing Weak-binding Lithium Bis(trifluoromethanesulfonyl)imide

__ INDEX 1.Introduction 2. Experiment 3. Result & Discussion 4. Conclusion

Introduction

Experiment TMOS VTMS BTMSPA Precursor :  Tetramethoxysilane (TMOS)  Vinyltrimethoxysilane (VTMS)  Bis[3-(trimethoxysilyl)propyl]amine (BTMSPA) Silica aerogel 3D network structure Silica nanoparticles having vinyl groups GelationAging

Experiment AIBN,70 ℃ LiMTFSI Organic inorganic composite single-ion conducting nanoparticles Polym. Chem.,2016, 7, 6901–6910

Result & Discussion Field Emission-Scanning Electron Microscopy (FE-SEM) measurement, Brunauer-Emmett-Teller (BET) surface area measurement *BET surface area ~ 541g/m 2 (a) Bare aerogel - before polymerizaion(b) Aerogel with polymer - after polymerizaion

Result & Discussion Fourier Transform Infrared (FTIR) spectroscopy – ATR mode measurement ATR-FTIR spectra from 500 to 4000cm -1 at room temperature. Data were shifted vertically for clarity

Result & Discussion Thermogravimetric Analyzer (TGA) measurement, heating rate is 10K/min. ACS, Appl, Mater, Interfaces 2016, 8, 10350− Td ~300 ℃, ~450 ℃ Residual weights mean the part of silica aerogel, ~60wt%.

Result & Discussion AC impedance spectroscopy measurement with 10mV amplitude, ~ Hz frequency range σ = 1.8x10 -4 at 22 ℃ LiMTFSI weight Propylene carbonate (PC) weight 0.5g10g 1g10g 2g10g 5g10g To get higher conductivity

Conclusion  The reason why used silica aerogel 3D network structure as matrix.  The reason why the electrical conductivity value could be high. High surface area means that many ionic polymers can be attached. That is, a high concentration of ions can be introduced in system. Silica aerogel is more stiffness than normal polymeric matrix which using SPEs and thus has the effect of preventing Li dendrite growth. Propylene carbonate(PC) make ions easier to move by decreasing dissociation energy of ion pairs. The TFSI - anion has good electrochemical properties. Its significant charge delocalization leading to a relatively weak Li + TFSI - binding and fast conformational dynamics that is expected to promote Li + transport

*Reference [1] B. N. Nguyen, M. A. B. Meador, M. E. Tousley, B. Shonkwiler, L. McCorkle, D. A. Scheiman, and A. Palczer, ACS Appl. Mater. Interfaces 1, 621 (2009). [2] T. N. T. Phan, A. Ferrand, H. T. Ho, L. Liénafa, M. Rollet, S. Maria, R. Bouchet, and D. Gigmes, Polym. Chem. 7, 6901 (2016).

THANK YOU! QnA?