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{"id":1609,"date":"2010-10-26T20:25:05","date_gmt":"2010-10-26T18:25:05","guid":{"rendered":"https:\/\/energethique.be\/?p=1609"},"modified":"2010-11-12T10:06:20","modified_gmt":"2010-11-12T08:06:20","slug":"aurait-on-decouvert-le-saint-graal","status":"publish","type":"post","link":"https:\/\/energethique.be\/2010\/aurait-on-decouvert-le-saint-graal\/","title":{"rendered":"Aurait on d\u00e9couvert le Saint Graal ?"},"content":{"rendered":"
L’un des probl\u00e8mes majeur voire le seul probl\u00e8me des \u00e9nergies alternatives ou vertes est le stockage de l’\u00e9nergie.<\/p>\n
Le vent fait tourner l’\u00e9olienne qui produit de l’\u00e9lectricit\u00e9 mais celle-ci n’est que tr\u00e8s difficilement stockable dans des batteries et de toute fa\u00e7on avec un rendement frisant le ridicule.<\/p>\n
M\u00eame chose pour l’\u00e9nergie solaire thermique, on peut bien stocker quelques centaines de litre d’eau chaude mais cela ne dure gu\u00e8re que quelques heures tout au plus.<\/p>\n
Le Saint Graal des \u00e9nergies alternatives est donc de pouvoir stocker de mani\u00e8re durable, dans le sens temporel, cette \u00e9nergie gracieusement offerte par la nature.<\/p>\n
Il faut bien avouer que le p\u00e9trole, gaz ou charbon issu de la biomasse pr\u00e9historique sont des perles d’engineering pour le stockage de l’\u00e9nergie …<\/p>\n
Alors aurions nous d\u00e9couvert ce Saint Graal ?<\/p>\n
En tout cas c’est ce que pr\u00e9tendent des chercheurs du Massachusetts Institute of Technology (MIT) qui \u00e0 l’aide d’une mol\u00e9cule, le diruthenium\u00a0de fulvalene, peuvent stocker durablement de la chaleur et la restituer \u00e0 la demande ; le m\u00e9canisme \u00e0 fait l’objet d’une publication dans le journal Angewandte Chemie<\/a> (Chimie appliqu\u00e9e) (1).<\/p>\n