Recently updated on September 20th, 2024 at 10:06 am<\/p>","protected":false},"excerpt":{"rendered":"
This report summarizes the experimental activities conducted to improve the performance of MXenes to be used as anodes in sodium-ion batteries (NIB) through the development of both new MAX phases and new exfoliation and post-etching processes. Furthermore, first generation NIB single cells were characterized with excellent results, where the MXenes with the best performance were coupled with Na0.44MnO2 cathodes developed in the previous Line of Activity. <\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1373,1301,1299],"targets":[1304,1317],"rapporti_tipologie":[762],"class_list":["post-192393","rapporti","type-rapporti","status-publish","hentry","tag-electricalstorage","tag-sodium-ion-batteries","tag-storage-en","targets-industrial-world","targets-research","rapporti_tipologie-report-en"],"acf":{"projects":{"ID":191041,"post_author":"464","post_date":"2024-07-10 15:54:35","post_date_gmt":"2024-07-10 13:54:35","post_content":"","post_title":"Storage systems, including electrochemical and power-to-gas, and their interfaces with grids","post_excerpt":"The more ambitious the decarbonisation goals become, the more important energy storage is. The increasing penetration of non-programmable renewable energy sources (NPRESs) and the growing electrification of transport lead to a number of challenges related to the stability and flexibility of the national electrical system. The need to store excess renewable energy for later use where and when it is needed becomes evident.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids","to_ping":"","pinged":"","post_modified":"2024-08-09 15:49:26","post_modified_gmt":"2024-08-09 13:49:26","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/storage-systems-including-electrochemical-and-power-to-gas-and-their-interfaces-with-grids\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"dont_show_hompage":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
This report summarizes the experimental activities conducted to improve the performance of MXenes to be used as anodes in sodium-ion batteries (NIBs). This objective was pursued both by working on the starting material (MAX phases) and implementing new chemical exfoliation processes and post-etching treatments. The synthesis was optimized through Spark Plasma Sintering of the Ti2<\/sub>AlC MAX phase and the Ti3<\/sub>Al1-x<\/sub>Snx<\/sub>C2<\/sub> solid solution. For both materials the main problems concerned the MXene preparation through the chemical exfoliation process.<\/p>\n As regards the improvement of the electrochemical performance of the Ti3<\/sub>C2<\/sub>Tx<\/sub> MXenes, whose preparation process had been optimized in the previous year, new acid solutions were tested for their production starting from Ti3<\/sub>AlC2<\/sub>. Furthermore, several post-exfoliation processes in hydrofluoric acid were tested with the aim of modifying the functionalization of the lamellae. The best MXenes were obtained by means of Ti3<\/sub>C2<\/sub>Tx<\/sub> heat treatment at 500\u00b0C in which a specific organic compound (cetyltrimethylammonium bromide (CTAB)) had previously been inserted among the lamellae.<\/p>\n Furthermore, MXene-based NIB single cells were created and characterized, in which the Na0.44<\/sub>MnO2<\/sub> cathode material is the first generation material developed by RSE in the previous year. NIB devices were assembled in order to check the electrochemical effects of two main parameters: MXene pre-sodiation and active materials weight ratio in the anode and cathode. NIB prototypes provided excellent feedback in terms of specific capacity (\u2248105 mAh\/g of MXene), average potential (between 1.8 and 2.2V) and stability over time. The anode\/cathode weight ratio is the most critical aspect to fine-tune in order to maximize performance, also in anticipation of potential industrial developments.<\/p>\n","link_estreno":false,"scarica_file":[{"download_option":"download","file_name":"Download Report","download":{"ID":165470,"id":165470,"title":"20010817","filename":"20010817.pdf","filesize":6882207,"url":"https:\/\/www.rse-web.it\/wp-content\/uploads\/2022\/05\/20010817.pdf","link":"https:\/\/www.rse-web.it\/en\/rapporti\/messa-a-punto-di-mxeni-drogati-o-di-diversa-composizione-funzionalizzazione\/attachment\/20010817\/","alt":"","author":"93","description":"","caption":"","name":"20010817","status":"inherit","uploaded_to":165466,"date":"2022-05-04 13:22:16","modified":"2022-05-04 13:22:16","menu_order":0,"mime_type":"application\/pdf","type":"application","subtype":"pdf","icon":"https:\/\/www.rse-web.it\/wp-includes\/images\/media\/document.png"}}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2020-12-30","autori":"S. Marchionna, M. Balordi, I. Quinzeni (RSE S.P.A.), A. Gentile (Universit\u00e0 Milano Bicocca)","rapporto":"","rif_rse":"20010817"},"satellite_post_url":""},"yoast_head":"\n