{"id":5167,"date":"2015-11-02T13:50:32","date_gmt":"2015-11-02T12:50:32","guid":{"rendered":"http:\/\/dpubma.univ-annaba.dz\/?p=5167"},"modified":"2015-11-02T14:05:56","modified_gmt":"2015-11-02T13:05:56","slug":"elimination-par-electrodialyse-des-ions-feii-dune-solution-dacide-sulfurique","status":"publish","type":"post","link":"https:\/\/synthese.univ-annaba.dz\/?p=5167","title":{"rendered":"Dispersion capacitive de l\u2019interface H2SO4\/Pt"},"content":{"rendered":"<p style=\"text-align: justify;\" align=\"center\"><strong>Num\u00e9ro de la revue<\/strong>:\u00a031<br \/>\n<strong>Auteurs<\/strong>:\u00a0Abdelhamid\u00a0 Hammadi* &amp; Mourad Berd<\/p>\n<div><em>D\u00e9partement de Physique, Facult\u00e9 des Sciences Exactes<\/em><\/div>\n<div><em>Universit\u00e9 des fr\u00e8res Mentouri, Constantine 1, 25000, \u00a0Constantine, Alg\u00e9rie.<\/em><\/div>\n<p style=\"text-align: justify;\" align=\"center\">.<\/p>\n<p style=\"text-align: right;\"><a href=\"http:\/\/dpubma.univ-annaba.dz\/wp-content\/uploads\/2015\/11\/2-R05.14.pdf\"><strong>T\u00e9l\u00e9charger l&rsquo;article<img loading=\"lazy\" decoding=\"async\" class=\" wp-image-709 alignright\" style=\"margin-top: -10px; margin-bottom: -10px;\" src=\"\/wp-content\/uploads\/2014\/04\/p2.jpg\" alt=\"p2\" width=\"37\" height=\"35\" srcset=\"https:\/\/synthese.univ-annaba.dz\/wp-content\/uploads\/2014\/04\/p2.jpg 113w, https:\/\/synthese.univ-annaba.dz\/wp-content\/uploads\/2014\/04\/p2-24x24.jpg 24w, https:\/\/synthese.univ-annaba.dz\/wp-content\/uploads\/2014\/04\/p2-48x46.jpg 48w\" sizes=\"auto, (max-width: 37px) 100vw, 37px\" \/><\/strong><\/a><\/p>\n<p style=\"text-align: left;\"><strong>R\u00e9sum\u00e9 <\/strong><\/p>\n<p style=\"text-align: justify;\">Des mesures d&rsquo;imp\u00e9dances par SIE et de voltammogrammes par VC sur des \u00e9lectrodes pr\u00e9trait\u00e9es de Pt plong\u00e9es dans une solution \u00e9lectrolytique de 0,5M H<sub>2<\/sub>SO<sub>4<\/sub> sont pr\u00e9sent\u00e9es. Deux techniques de pr\u00e9traitement \u00e9lectrochimique de l\u2019\u00e9lectrode de travail (WE) (fil fin de Pt) sont utilis\u00e9es: l&rsquo;une de nettoyage et l&rsquo;autre de \u00ab\u00a0gravage\u00a0\u00bb. Les r\u00e9sultats obtenus montrent que l\u2019origine de la dispersion capacitive de l&rsquo;interface Pt \/ H<sub>2<\/sub>SO<sub>4<\/sub> semble d\u00e9pendre du d\u00e9sordre de surface et de l&rsquo;adsorption sp\u00e9cifique des ions. Les effets du nettoyage (surface propre \u00e0 l&rsquo;\u00e9chelle microscopique) jouent un r\u00f4le significatif dans la dispersion capacitive. L&rsquo;adsorption des ions Cl<sup>&#8211;<\/sup> connus pour leur pouvoir tr\u00e8s adsorbant sur le platine joue aussi un r\u00f4le pr\u00e9pond\u00e9rant et que l&rsquo;adsorption et la rugosit\u00e9 de surface sont infiniment li\u00e9es.<\/p>\n<p style=\"text-align: justify;\"><strong>Mots cl\u00e9s<\/strong> : <em>dispersion capacitive \u2013 d\u00e9sordre de surface &#8211; rugosit\u00e9 &#8211; \u00e9chelle atomique. <\/em><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Num\u00e9ro de la revue:\u00a031 Auteurs:\u00a0Abdelhamid\u00a0 Hammadi* &amp; Mourad Berd D\u00e9partement de Physique, Facult\u00e9 des Sciences Exactes Universit\u00e9 des fr\u00e8res Mentouri, Constantine 1, 25000, \u00a0Constantine, Alg\u00e9rie. . T\u00e9l\u00e9charger l&rsquo;article R\u00e9sum\u00e9 Des mesures d&rsquo;imp\u00e9dances par SIE et de voltammogrammes par VC sur &hellip; <a href=\"https:\/\/synthese.univ-annaba.dz\/?p=5167\">Lire la suite <span class=\"meta-nav\">&raquo;<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[1028,1027,1030,1029],"class_list":["post-5167","post","type-post","status-publish","format-standard","hentry","category-synthese-2","tag-desordre-de-surface","tag-dispersion-capacitive","tag-echelle-atomique","tag-rugosite"],"_links":{"self":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/5167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5167"}],"version-history":[{"count":4,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/5167\/revisions"}],"predecessor-version":[{"id":5175,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/5167\/revisions\/5175"}],"wp:attachment":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}