{"id":103203,"date":"2025-01-30T12:28:34","date_gmt":"2025-01-30T11:28:34","guid":{"rendered":"https:\/\/www.upjs.sk\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\/"},"modified":"2026-03-18T15:12:18","modified_gmt":"2026-03-18T14:12:18","slug":"studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi","status":"publish","type":"post","link":"https:\/\/www.upjs.sk\/en\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\/","title":{"rendered":"Improved catalytic activity of MoxNiyAlz\u00a0thin films as electrocatalyst for hydrogen evolution reaction in alkaline media"},"content":{"rendered":"\n<p>In the present article, we studied the catalytic activity of magnetron-sputtered Mo<sub>x<\/sub>Ni<sub>y<\/sub>X<sub>z<\/sub> (where X = Al, Co, Cr, Cu, Fe, W) thin films for the hydrogen evolution reaction (HER) in 1 M NaOH. Thin-film electrocatalysts were prepared at 25 \u00b0C and 800 \u00b0C and characterized by SEM-EDX and XRD analyses. The Mo<sub>80<\/sub>Ni<sub>5<\/sub>Al<sub>15<\/sub>(800 \u00b0C) &nbsp;&nbsp;electrocatalyst demonstrated the best HER overpotential (-181 mV) among all tested ternary systems. XRD analysis revealed that only the Mo<sub>80<\/sub>Ni<sub>5<\/sub>Al<sub>15<\/sub> thin films prepared at 800 \u00b0C exhibited the fcc phase, while less active compositions contained only the bcc phase. Electrochemical impedance spectroscopy results were consistent with cyclic voltammetry measurements. Chronoamperometry showed that the HER activity of Mo<sub>80<\/sub>Ni<sub>5<\/sub>Al<sub>15<\/sub>(800 \u00b0C) remained stable after a slight initial drop, whereas the activity of Ni catalysts nearly halved over the same time frame. These findings suggest that Mo<sub>80<\/sub>Ni<sub>5<\/sub>Al<sub>15<\/sub>(800 \u00b0C) &nbsp;&nbsp;could serve as a promising alternative to industrial Ni-based catalysts for alkaline water electrolyzers.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"640\" height=\"363\" src=\"https:\/\/www.upjs.sk\/app\/uploads\/2025\/01\/Qmagna-bannerm.jpg\" alt=\"\" class=\"wp-image-85522\" srcset=\"https:\/\/www.upjs.sk\/app\/uploads\/2025\/01\/Qmagna-bannerm.jpg 640w, https:\/\/www.upjs.sk\/app\/uploads\/2025\/01\/Qmagna-bannerm-300x170.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In the present article, we studied the catalytic activity of magnetron-sputtered MoxNiyXz (where X = Al, Co, Cr, Cu, Fe, W) thin films for the hydrogen evolution reaction (HER) in 1 M NaOH. Thin-film electrocatalysts were prepared at 25 \u00b0C and 800 \u00b0C and characterized by SEM-EDX and XRD analyses. The Mo80Ni5Al15(800 \u00b0C) &nbsp;&nbsp;electrocatalyst demonstrated &hellip; <a href=\"https:\/\/www.upjs.sk\/en\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\/\">Continued<\/a><\/p>\n","protected":false},"author":99,"featured_media":85523,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","footnotes":""},"categories":[2651],"tags":[],"class_list":["post-103203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qmagna"],"acf":{"acf_link_na_externy_obsah":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Improved catalytic activity of MoxNiyAlz\u00a0thin films as electrocatalyst for hydrogen evolution reaction in alkaline media - UPJ\u0160 Ko\u0161ice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.upjs.sk\/en\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Improved catalytic activity of MoxNiyAlz\u00a0thin films as electrocatalyst for hydrogen evolution reaction in alkaline media - UPJ\u0160 Ko\u0161ice\" \/>\n<meta property=\"og:description\" content=\"In the present article, we studied the catalytic activity of magnetron-sputtered MoxNiyXz (where X = Al, Co, Cr, Cu, Fe, W) thin films for the hydrogen evolution reaction (HER) in 1 M NaOH. Thin-film electrocatalysts were prepared at 25 \u00b0C and 800 \u00b0C and characterized by SEM-EDX and XRD analyses. The Mo80Ni5Al15(800 \u00b0C) &nbsp;&nbsp;electrocatalyst demonstrated &hellip; Continued\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.upjs.sk\/en\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\/\" \/>\n<meta property=\"og:site_name\" content=\"UPJ\u0160 Ko\u0161ice\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/UniverzitaPavlaJozefaSafarikaVkosiciach\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-01-30T11:28:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-18T14:12:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.upjs.sk\/app\/uploads\/2025\/01\/Qmagna-bannerm.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"363\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"hsedlakova\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@UPJS_kosice\" \/>\n<meta name=\"twitter:site\" content=\"@UPJS_kosice\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"hsedlakova\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\\\/\"},\"author\":{\"name\":\"hsedlakova\",\"@id\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/#\\\/schema\\\/person\\\/52be460c429fe5c43b9145e7d1c4538b\"},\"headline\":\"Improved catalytic activity of MoxNiyAlz\u00a0thin films as electrocatalyst for hydrogen evolution reaction in alkaline media\",\"datePublished\":\"2025-01-30T11:28:34+00:00\",\"dateModified\":\"2026-03-18T14:12:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\\\/\"},\"wordCount\":174,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.upjs.sk\\\/app\\\/uploads\\\/2025\\\/01\\\/Qmagna-bannerm.jpg\",\"articleSection\":[\"QMAGNA\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.upjs.sk\\\/en\\\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\\\/\",\"url\":\"https:\\\/\\\/www.upjs.sk\\\/en\\\/studium-katalytickej-aktivity-tenkych-filmov-moxniyalz-ako-elektrokatalyzatora-pre-reakciu-vyvoja-vodika-v-alkalickom-prostredi\\\/\",\"name\":\"Improved catalytic activity of MoxNiyAlz\u00a0thin films as electrocatalyst for hydrogen evolution reaction in alkaline media - 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