{"id":42112,"date":"2019-03-18T00:00:00","date_gmt":"2019-03-17T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/novyj-nanoporistyj-material-obeshhaet-uluchshit-batarei-i-katalizatory"},"modified":"2020-02-18T13:44:54","modified_gmt":"2020-02-18T10:44:54","slug":"novyj-nanoporistyj-material-obeshhaet-uluchshit-batarei-i-katalizatory","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/novyj-nanoporistyj-material-obeshhaet-uluchshit-batarei-i-katalizatory","title":{"rendered":"Un nuovo materiale nanoporoso promette di migliorare batterie e catalizzatori","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Il centro di ricerca belga Imec ha annunciato lo sviluppo di una tecnologia economica per la produzione di materiale nanopore con caratteristiche straordinarie. Questo materiale unico, con una struttura a nanopori, presenta un'eccezionale porosit\u00e0 e un rapporto superficie-volume senza precedenti. Immaginate una piccola lattina di bevanda gassata, di cui il 75 % del contenuto \u00e8 vuoto, con una superficie totale pari a un campo da calcio. La produzione di questo materiale \u00e8 relativamente semplice e poco costosa, e pu\u00f2 essere realizzata con quasi qualsiasi metallo. Pertanto, lo spettro di applicazione di un tale materiale nanopore potrebbe essere molto ampio.<\/p>\n

\"Un<\/p>\n

Tuttavia, il principale utilizzo del nuovo materiale con struttura nanoporlata e grande superficie interna sembra essere nelle reazioni chimiche, che richiedono superfici elevate per accelerare le reazioni. Ad esempio, potrebbero essere batterie agli ioni di litio, dove l'aumento dell'area di reazione per la conversione del litio in ioni di litio porta a un aumento della potenza erogata e dell'efficienza. Inoltre, la natura metallica del nanomateriale consente di collegare direttamente contatti di prelievo di corrente. Inoltre, il materiale poroso migliorer\u00e0 il funzionamento delle celle a combustibile e dei sistemi di estrazione dell'idrogeno dall'acqua. Invece di una membrana catalitica in nikel espanso di circa un millimetro di spessore, ad esempio, il nuovo materiale \u00e8 300 volte pi\u00f9 sottile, ma fornisce lo stesso effetto del nichel. Le energie rinnovabili e le batterie possono avere una possibilit\u00e0 di notevole miglioramento tecnologico e delle soluzioni.<\/p>\n

\"Un
\n<\/center><\/p>\n

Nella produzione, il nuovo materiale \u00e8 piuttosto semplice, come gi\u00e0 detto. Inizialmente, si crea una forma partendo da fogli di alluminio mediante anodizzazione. Successivamente, viene attivato il processo di galvanizzazione con dosaggio preciso di alluminio metallico (o di un altro metallo). Dopo aver riempito i vuoti nella forma, questa viene dissolta, liberando la struttura a celle spaziali dei nanofili. Una striscia di materiale nanoporlato appare come un foglio. Essa \u00e8 flessibile e non si rompe, a differenza dei materiali nanoporlati moderni prodotti in altri modi. Attendiamo una realizzazione pratica. Abbiamo bisogno di sempre pi\u00f9 batterie.<\/p>\n

\"Un<\/p>\n

<\/p>\n

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Fonte: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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