Agenda

Date

September 23-24, 2019

Location

Paris, France

Conference Agenda

Explore your options to connect, learn and be inspired from our speakers

Keynote Session:

Meetings International -  Conference Keynote Speaker Xinhua Liu photo

Xinhua Liu

Imperial College London, UK

Title: Multi-scale design for structural energy devices

Biography:

Xinhua Liu has completed her PhD from Tongji University and Postdoctoral Studies from Dyson School of Design Engineering, Imperial College London, UK. She has great interests in material science and electrochemical engineering, working to develop scalable technologies to produce energy materials for various energy applications. With a great interest in design high performance batteries and battery packs from micro-scale to grid level, Xinhua has published more than 30 papers in recent five years including Advanced Materials, Advanced Science.

Abstract:

Energy devices, such as supercapacitors, Lithium-ion batteries, have now become the most critical component for electric vehicles (EV) and consumer electronics with improvements in energy and power density. The key aspects of a battery pack which define its performance are mainly the electrode and electrolyte chemistry selection, single cell performance and battery management.

This talk will discuss the issues and challenges of the batteries and how to develop high performance batteries via multi-scale design, including the electrode/electrolyte material selection and structure design, the scaffold design for structural devices, and the battery pack design. Advanced X-ray tomography technology is employed here for structure characterization and further understand the degradation mechanism.

Guidance in materials, manufacturing technology and pack design will be given. More focus will be given to the highly engineered electrospinning technology which can produce nanostructured functional materials, specifically carbon nanofibres/nanotubes, for fabrication of various electrochemical applications. The model based battery pack design will also be discussed to understand overall performance of lithium-ion battery pack due to cell-to-cell variations, thermal gradients and/or cell interconnects.

Oral Session 1:

  • Analytical Techniques and Instrumentation in Materials Chemistry | Nanomaterials and Nanotechnology | Characterization and Testing of Materials | Materials Science and Engineering
Meetings International - Material Chemistry Congress 2019 Conference Keynote Speaker Shirin Alexander photo

Shirin Alexander

Swansea University, UK

Title: Functionalized Al2O3 nanoparticles from superhydrophobic derived Surfaces to enhanced oil recovery applications

Biography:

Shirin Alexander principal research interest is in surface chemistry, materials, polymers, and colloids and also in developing and understanding the correlations between the structures adopted by surfactants/polymeric surfactants at interfaces and the physical properties of these materials in solutions. Such materials have an extensive range of applications and are widely used from enhanced oil recovery (EOR) and personal care formulations through to drug delivery vehicles.
Shirin Alexander current work in the Energy Safety Research Institute (ESRI) is focused mainly on material chemistry, functionalisation/synthesis of nanoparticles and microparticles.

Abstract:

The use of various low cost and non-hazardous hydrocarbon materials in order to tune the surface properties of aluminium oxide nanoparticles (NPs) from superhydrophilic to superhydrophobic is reported. The desired wettability is achieved by combining the surface roughness of nanoparticle-derived films and low/high surface energy properties of the highly branched and linear alkyl chains coating the NPs. It is known that branched HC chain architectures promote efficient packing at the surface of aqueous solutions, allowing densely packed disordered films to promote low surface tensions (energies). These nontoxic and cheap hydrocarbon-based NPs have much potential for new coating applications on a variety of substrates, and as a replacement for costly, hazardous fluorocarbons. The role of NPs hydrophobicity on their dynamic interfacial behaviour at the oil-water interface and their ability to form stable emulsions is also explored. The superhydrophobic NPs are able to reduce the interfacial tension of various oils-water by behaving as surfactants and may be used in various potential applications from domestic products to oil industry.

Meetings International - Material Chemistry Congress 2019 Conference Keynote Speaker Chenhui Zhu photo

Chenhui Zhu

Northwest University, China

Title: Novel HLC-HA-CCS and PVA-CMC-PEG hydrogels for wound dressing

Biography:

Chenhui Zhu is a professor of school of chemical engineering, Northwest University, China, Director of Shaanxi Key Laboratory of Degradable Biomedical Materials. She received her Ph.D. degree in Northwest University in 2008, studied in the department of biomedical engineering of Duke University as a visiting scholar from 2012-2013. She won the 11th Shaanxi Youth Science and Technology Award, Shaanxi Youth Science and Technology Innovation Leader Award and Xi'an Academic and Technological Leader Award. Her research area focuses on biomaterials and protein engineering. Up to now, she has published over 60 papers and 2 books, holds 15 patents.

Abstract:

Hydrogel is a kind of hydrophilic soft material with a three-dimensional network structure and has a broad application prospect in the field of medicine. The wound dressings to meet the clinic needs are the seeking goals of scientists. Natural biological materials have excellent biocompatibility. Human-like collagen-hyaluronic acid-carboxylated chitosan (HLC-HA-CCS) complex hydrogels crosslinked with glutamine aminotransferase (TG) are prepared for wound dressing. HA elevates the compressive stress, CCS increases the anti-deformation, HA and CCS together contribute to improve the porosities, swelling and water retention properties. Full thickness skin defect experiments show that HLC-HA-CCS hydrogels can promote wound healing in comparison with traditional ones.

However, the mechanical properties of hydrogels made from natural materials are poor, and the antimicrobial, moisturizing performance as well as bacteria resistance fail to meet the requirements of wound healing. Therefore, a double-layer polyvinyl alcohol-polyethylene glycol-sodium carboxymethyl cellulose (PVA-CMC-PEG) hydrogel are prepared to solve the above problems.

The double-layer hydrogels present a tight upper layer with smaller pore size and a loose lower layer with larger pore size, which can meet the absorption of seepage and bacteria resistance at the same time. The pore size at the longitudinal section presents a trend of gradual reduction and the two layers are bonded tightly. Furthermore, the double-layer hydrogels have a suitable water vapor transmission rate, excellent moisturizing effect, bacteria resistance ability and are non-sticky to the wound. Besides, the hydrogel have no toxic effects on cells. Full-thickness skin defect experiment shows that the double-layer PVA-CMC-PEG hydrogels canenhance wound healing greatly and would be ideal wound dressings.

 

Meetings International - Material Chemistry Congress 2019 Conference Keynote Speaker Elaine Yoshiko Matsubara photo

Elaine Yoshiko Matsubara

University of Sao Paulo, Brazil

Title: Non-wovens carbon nanofibers doped and covered with carbon nanotubes as binderless hybrid hierarchical electrode for lithium storage

Biography:

Elaine Yoshiko Matsubara holds a BA (2002) in Chemistry, PhD (2010) in Carbon Nanomaterials for Energy Storage Devices from the University of São Paulo (USP), a part of her PhD studies from the Instituto de Ciencias de Los Materiales de Madrid (Spain), ENEA (Italian National Agency for New Technologies Energy and Sustainable Economic Development), University of Rome La Sapienza (Italy), and a post-doc in Photovoltaic Energy Devices from the State University of São Paulo (UNESP). She is presently Researcher at University of Sao Paulo (USP), Brazil. Her work focuses on synthesis of doped carbon nanotubes, 3D hybrid hierarchical carbon composite materials and chemical and electrochemical graphene production to application and development of lithium and sodium ion batteries, sensors and International Conference on Fibromyalgia and Chronic Pain (June 15-16, 2016 Philadelphia, USA) Fibromyalgia 2016 June 15-16, 2016 capacitors. Her experience is focuses on Materials Science with emphasis in energy devices and nano composites to filtration, catalysis, environmental remediation and polymer reinforcement.

Abstract:

This study is an investigation of a hybrid hierarchical electrode produced by electrospinning and chemical vapor deposition methods. The binderless hybrid hierarchical electrode is composed by carbon nanofibers with carbon nanotubes inside and outside the fibers. Single-walled or multi-walled carbon nanotubes are present inside the nanofiber as a dopant and they are incorporated during the carbon nanofiber electrospun production. After that, multi-walled carbon nanotubes are grown onto the surface of the carbon nanofiber using chemical vapor deposition method.
The suitability of carbon nanofibers for lithium storage applications was investigated by electrochemical methods using charge and discharge curves, cyclic voltammetry and impedance spectroscopy. The morphology of the flexible binderless hybrid hierarchical electrodes was investigated by scanning electron microscopy. The additional incorporation of oxide nanoparticles (manganese, zinc or both) by electrodeposition method are responsible to improve the specific capacitance of the electrode, showing new perspectives to use this electrode configuration to produce lightweight, flexible and conductive electrode for lithium ion batteries without binder addition.