{"id":2516,"date":"2016-10-19T16:58:07","date_gmt":"2016-10-19T14:58:07","guid":{"rendered":"https:\/\/www.factorenergia.com\/ca\/?post_type=blog&#038;p=2516"},"modified":"2016-10-19T16:58:07","modified_gmt":"2016-10-19T14:58:07","slug":"energia-verda","status":"publish","type":"post","link":"https:\/\/www.factorenergia.com\/ca\/blog\/histories-positives\/energia-verda\/","title":{"rendered":"Espinacs: menjar i energia verda"},"content":{"rendered":"<p><span style=\"color: #000000;\">Fent servir la membrana d\u2019una simple fulla d\u2019espinac, els investigadors de l\u2019Institut tecnol\u00f2gic Technion d\u2019Israel han desenvolupat una <strong>c\u00e8l\u00b7lula capa\u00e7 de produir electricitat e hidrogen a partir d\u2019aigua<\/strong>. El descobriment va ser publicat el 23 d\u2019agost a la revista <a href=\"http:\/\/www.nature.com\/articles\/ncomms12552\" target=\"_blank\">Nature Communications<\/a>.<\/span><\/p>\n<h2><span style=\"color: #000000;\">La fotos\u00edntesi el\u00e8ctrica<\/span><\/h2>\n<p><span style=\"color: #000000;\">La combinaci\u00f3 de la <strong>c\u00e8l\u00b7lula artificial<\/strong> BFEQ \u2013 bio-foto-electro-qu\u00edmica (BPEC, en angl\u00e8s)- i les membranes de la planta dels espinacs, que absorbeixen la llum solar i la converteixen en un flux d\u2019electrons, aplana el cam\u00ed cap al desenvolupament de noves tecnologies que cre\u00efn <strong>combustibles nets a partir de fonts renovables<\/strong> com l\u2019aigua i la llum solar.<\/span><\/p>\n<p><span style=\"color: #000000;\">La c\u00e8l\u00b7lula BPEC desenvolupada pels investigadors est\u00e0 basada en el proc\u00e9s natural de la fotos\u00edntesi de les plantes, en que la llum condueix electrons que produeixen mol\u00e8cules energ\u00e8tiques qu\u00edmiques emmagatzemables, que s\u00f3n combustibles de totes les c\u00e8l\u00b7lules del m\u00f3n animal i de les plantes.<\/span><\/p>\n<h2><span style=\"color: #000000;\">Energia verda\u00a0amb extra de ferro<\/span><\/h2>\n<p><span style=\"color: #000000;\">Per tal de produir corrent el\u00e8ctrica, els investigadors van afegir al proc\u00e9s de fotos\u00edntesi un component amb base f\u00e8rrica a la soluci\u00f3.\u00a0 Aquest component converteix la membrana de les fulles en un circuit el\u00e8ctric, permetent la creaci\u00f3 de corrent el\u00e8ctrica a la c\u00e8l\u00b7lula.<\/span><\/p>\n<p><span style=\"color: #000000;\">Aquesta corrent el\u00e8ctrica tamb\u00e9 es pot utilitzar per <strong>formar hidrogen<\/strong> afegint-hi una petita c\u00e8l\u00b7lula fotovoltaica que absorbeixi l\u2019exc\u00e9s de llum. Aix\u00f2 fa possible la conversi\u00f3 d\u2019energia solar a energia qu\u00edmica que s\u2019emmagatzema dins la c\u00e8l\u00b7lula artificial BPEC i, alhora, aquesta energia pugui convertir-se en calor i electricitat quan sigui necessari cremant l\u2019hidrogen, igual que amb els combustibles ordinaris, per\u00f2 amb la difer\u00e8ncia de <strong>que en aquest cas no s\u2019emeten gasos sin\u00f3 aigua<\/strong>; energia verda.<\/span><\/p>\n<p><span style=\"color: #000000;\">Es tracta d\u2019un <strong>cicle tancat que comen\u00e7a en aigua i acaba en aigua<\/strong>, permetent la conversi\u00f3 i l\u2019emmagatzematge d\u2019energia solar en gas, que pot convertir-se en un <strong>substitut net i sostenible<\/strong> del combustible f\u00f2ssil.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ho deia en Popeye i tamb\u00e9 la teva mare: els espinacs s\u00f3n bons. Ara que tamb\u00e9 ho diuen els cient\u00edfics i el medi ambient, igual te\u2019ls comences a mirar d\u2019una altra manera.<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[58],"tags":[],"acf":{"fecha_de_la_entrada":"20161019","imagen_portada":2515,"categoria_blog":58,"tipo_de_distribuidora":null,"tiempo_lectura":"","banner_bool":false,"titulo_banner":"","texto_banner":"","texto_boton_banner":"","url_boton_banner":"","post_relacionados":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Energia Verda amb Espinacs de tot la vida | Factorenergia<\/title>\n<meta name=\"description\" content=\"Ja ho deia la teva mare: els espinacs s\u00f3n bons. 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