{"id":3914,"date":"2026-04-30T16:13:32","date_gmt":"2026-04-30T14:13:32","guid":{"rendered":"http:\/\/polysense.poliba.it\/?p=3914"},"modified":"2026-04-30T16:13:32","modified_gmt":"2026-04-30T14:13:32","slug":"new-publication-on-international-journal-of-hydrogen-energy-2","status":"publish","type":"post","link":"https:\/\/polysense.poliba.it\/index.php\/2026\/04\/30\/new-publication-on-international-journal-of-hydrogen-energy-2\/","title":{"rendered":"New Publication on International Journal of Hydrogen Energy"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The PolySense and Polysense Innovations teams have just published\u00a0 a new article on the International Journal of Hydrogen Energy (IF 8.3) regarding the use of Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) for the detection of CO impurities  in hydrogen . Due to the high speed of sound in hydrogen, the geometry of the spectrophone was specifically selected to ensure efficient sound wave amplification. Therefore, a QEPAS spectrophone was designed by exploiting a custom quartz tuning fork operating at first overtone mode (~44,0 kHz) in combination with compact resonator tubes. The spectrophone was integrated into a QEPAS sensor for CO trace detection at 2193.36 cm? 1 in a hydrogen matrix. The QEPAS sensor was calibrated using certified mixtures, returning a detection limit of 1.5 ppm for 10 s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">    The following link provides access to the article:   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/1-s2.0-S036031992601774X-main.pdf\">http:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/1-s2.0-S036031992601774X-main.pdf<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"722\" src=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/QEPAS-H2-and-CO-1024x722.jpg\" alt=\"\" class=\"wp-image-3915\" srcset=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/QEPAS-H2-and-CO-1024x722.jpg 1024w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/QEPAS-H2-and-CO-300x211.jpg 300w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/QEPAS-H2-and-CO-768x541.jpg 768w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/QEPAS-H2-and-CO.jpg 1063w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The PolySense and Polysense Innovations teams have just published\u00a0 a new article on the International Journal of Hydrogen Energy (IF 8.3) regarding the use of Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) for the detection of CO impurities in hydrogen . Due to the high speed of sound in hydrogen, the geometry of the spectrophone was specifically selected <a href=\"https:\/\/polysense.poliba.it\/index.php\/2026\/04\/30\/new-publication-on-international-journal-of-hydrogen-energy-2\/\" rel=\"nofollow\"><span class=\"sr-only\">Leggi di pi\u00f9New Publication on International Journal of Hydrogen Energy<\/span>[&hellip;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":3341,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3914","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-senza-categoria"],"_links":{"self":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/comments?post=3914"}],"version-history":[{"count":2,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3914\/revisions"}],"predecessor-version":[{"id":3917,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3914\/revisions\/3917"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media\/3341"}],"wp:attachment":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media?parent=3914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/categories?post=3914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/tags?post=3914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}