第七届新型材料与化学工业国际学术会议


NMCI 2022


2022 年 11 月 16-18 日     中国·珠海

第七届新型材料与化学工业国际学术会议
NMCI 2022
2022 年 11 月 16-18 日
中国·珠海

主题演讲人

M.G.H. Zaidi M.G.H. Zaidi
Professor
Govind Ballabh Pant University of Agriculture & Technology, India

Speech Title: Polymerization and Polymer Modification in Supercritical Fluids
Abstract: Supercritical fluids (SCFs) present the transient state of liquefiable gases and polar liquids above their critical point wherein the phases separating boundaries are unified into a single phase called SCFs. This state demonstrates unique diffusivity like gases combined with liquid like density. Applications of SCFs as an alternative media in food processing, chromatography, energy production and drug development was recognized till beginning of 19th century, has now well accepted in processing of materials1-2. The most preferred SCFs are the supercritical carbon dioxide (SCC) and supercritical water (SCW).SCFs offers a series of unique methods of particle sizing, development of polymer composites, blends1-2, dispersion of layered silicates3, inorganic4, graphitic5 and magnetic fillers6 into solvents, monomers and their infusion into polymer matrix at ambient temperatures. Size, shape and aspect ratios, infusion, deposition, dispersion and exfoliation of fillers and related nanomaterials are well controlled through tuning of several physical variables under supercritical conditions...


Fanian Shi Fanian Shi
Professor
Shenyang University of Technology, China

Speech Title: Rare Earth Element Assisted Anode Materials for The Enhanced Energy Storage Performance
Abstract: Our team studied the electrochemical properties of new negative materials for lithium ion batteries (LIBs), especially the preparation of 3d-4f MOFs, explored the structures and lithium storage properties of LIBs. The combination of polymetal complexes, cobalt oxide and cerium oxide, cobalt oxide and perovskite (LaCoO3), and the influence of rare earth elements on lithium storage properties of the above series of composites were studied. The following three conclusions are summarized: 1. Under the same conditions, different crystal structures have a great impact on electrochemical performance, in other word, the higher capacity of complexes are with more stable structure with the help of rare earth; 2. Comparing with pure cobalt oxide (Co3O4), the electrochemical properties of Co3O4/CeO2 and Co3O4/LaCoO3 composites are greatly enhanced; 3. Cerium plays a stable role on the electrochemical properties of metal complexes and cobalt oxide, mainly inhibiting the decomposition of the complex structure and providing lithium ion transport channels to improve lithium storage performance.


Leelakrishna Reddy Leelakrishna Reddy
Asso. Professor
University of Johannesburg, South Africa

Speech Title: Attempts at addressing the drawbacks of red emissions of white light emitting diodes (WLEDs) in commercially produced phosphor materials
Abstract: There are two approaches for the fabrication of white light emitting diodes (WLEDs); firstly, a blend of blue emitting InGaN LED chip with a yellow emitting Ce3+ doped yttrium aluminum garnet (YAG), and secondly, a combination of tri-colours of white light (red, blue, green) on a near ultra-violet chip [1]. The first fabrication process suffers a drawback in the low colouring index (CRI) of red light and limits its applicability in indoor and outdoor lighting, while the second has a drawback in its chemical stability and efficiencies of the white light produced [1]. These systems were supposed to replace the traditional incandescent and fluorescent lamps produced. In attempts to address the drawbacks of the CRI of red light, a component of white light, various phosphor materials were investigated, which will be discussed below...



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