Hydrogen release and absorption in mixed anion lithium amide
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Hydrogen release and absorption in mixed anion lithium amide
UNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: Dr Hydrogen release and absorption in mixed anion lithium amide Paul A. AndersonA thesis submitted to The University of Birmingham for the degree of Doctor of PhilosophyThe School of ChemistryCollege of Engineering and Physical SciencesThe University of Birmingham42309UNIVERSITY01BIRMINGHAMUniversity of Birmingham Research Archivee-theses repositoryThis unpubli Hydrogen release and absorption in mixed anion lithium amide shed thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect oHydrogen release and absorption in mixed anion lithium amide
f this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation.Any use made of information contaUNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: Dr Hydrogen release and absorption in mixed anion lithium amide n any format is prohibited without the permission of thecopyright holder.AbstractIn this work, reactions of either lithium borohydride, zinc chloride or zinc nitride with lithium amide have been studied.The presence of CoO catalyst was found to affect significantly the products and hydrogen release Hydrogen release and absorption in mixed anion lithium amide on heating mixtures of xLiBH.ryLiNH2. In products from a mixture of LiBH.1-2LiNH2 increasing amounts of the !4jamd polymorph of Li3BN2 were observed wHydrogen release and absorption in mixed anion lithium amide
ith a greater amount of CoO, and transformation from the !4-/amd to the P2y/c polymorph occurred under hydrogen pressure. On addition of CoO, at all rUNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: Dr Hydrogen release and absorption in mixed anion lithium amide lower than 240°C and 330°C without catalyst. Ball-milling helped to improve the amounts of hydrogen desorbed from these ratios from 3-4 wt% up to greater than 10 wt%.In the reactions of ZnCI2 + nLiNH2 (where n 2-6), LiCI and two nitrides Zn2N2 and LiZnN were obtained in the reaction products. Ammo Hydrogen release and absorption in mixed anion lithium amide nia was the main gas released from these reactions at around 300°C. The addition of LiH was found to change the main gaseous product from NH3 to H2, wHydrogen release and absorption in mixed anion lithium amide
hich was released at a low temperature beginning around 90°C, much lower than in the absence of LiH. A mixture of LiZnN and LiCI obtained from this reUNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: Dr Hydrogen release and absorption in mixed anion lithium amide N without LiCl. NH3 was the main gas released from mixtures of Zn3N2 and LiNH2, but again this was converted into H2 on addition of LĨH. Neither pure LiZnN nor Zn3N2 could be hydrogenated under the conditions tried, but a mixture resulting from the reaction was found to react with hydrogen to form L Hydrogen release and absorption in mixed anion lithium amide iNH? and Zn in a molar ratio of 1:1. The cyclability of the Li-Zn-N system (from both reactions) was examined by both IGA and HTP. Both mixtures wereHydrogen release and absorption in mixed anion lithium amide
able to release gases under low pressure, 10 bar, and around 35 bar hydrogen. This system could release and take up hydrogen at temperatures above 275UNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: Dr Hydrogen release and absorption in mixed anion lithium amide ly, I have now completed my thesis. There are many people who have helped and supported me during this work, and I want to give them all a great deal of thanks. First of all, I would like to thank my supervisor Paul Anderson for all his help and guidance over the last four years. I would like to tha Hydrogen release and absorption in mixed anion lithium amide nk the other members of Anderson's group, Matt, Rosie, Rachel, David, Tom, Ivan and Phil Chater. I would also like to thank other people on Floor 5, nHydrogen release and absorption in mixed anion lithium amide
ow and then, Marianna, Annabelle, Alaric, Laura, Phil, Claire,... for helping me have a good atmosphere place to work, especially Evin and Ben for carUNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: Dr Hydrogen release and absorption in mixed anion lithium amide iques but also encouraging me when I was losing my hope.I would also like to thank many Vietnamese friends for treating me well and sharing my worries so that I can overcome many difficulties when studying far away from home and family. May I send my thanks to Chi, Chau, Khanh, Hoa, Dung, Ban, Huong Hydrogen release and absorption in mixed anion lithium amide , Huyen, Minh, Mai, Ngoe, Thinh,... and many others for that.I would like to thank my family for their continued support; thanks to my parents, brotheHydrogen release and absorption in mixed anion lithium amide
rs, uncles, aunts, nieces and nephew.Finally I would to thank my husband and my daughter for always loving me and believing in me to help me be strongUNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: Dr Hydrogen release and absorption in mixed anion lithium amide on......................................................21.2.Hydrogen as a fuel.......................................................31.3.Hydrogen storage methods.................................................5 Hydrogen release and absorption in mixed anion lithium amide UNIVERSITY^BIRMINGHAMHydrogen release and absorption in mixed anion lithium amide/lithium ternary nitride systemsbyTrang Thi Thu NguyenSupervisor: DrGọi ngay
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