{"id":7099,"date":"2026-02-24T09:28:48","date_gmt":"2026-02-24T08:28:48","guid":{"rendered":"https:\/\/www.techscale.cz\/cs\/?p=7099"},"modified":"2026-02-24T09:32:05","modified_gmt":"2026-02-24T08:32:05","slug":"nova-generace-slunecniho-katalyzatoru","status":"publish","type":"post","link":"https:\/\/www.techscale.cz\/cs\/2026\/02\/24\/nova-generace-slunecniho-katalyzatoru\/","title":{"rendered":"Nov\u00e1 generace slune\u010dn\u00edho katalyz\u00e1toru p\u0159em\u011bnuje biomasu na suroviny pro v\u00fdrobu bioplast\u016f"},"content":{"rendered":"[vc_row type=“in_container“ full_screen_row_position=“middle“ column_margin=“default“ column_direction=“default“ column_direction_tablet=“default“ column_direction_phone=“default“ scene_position=“center“ text_color=“dark“ text_align=“left“ row_border_radius=“none“ row_border_radius_applies=“bg“ overflow=“visible“ overlay_strength=“0.3″ gradient_direction=“left_to_right“ shape_divider_position=“bottom“ bg_image_animation=“none“ gradient_type=“default“ shape_type=““][vc_column column_padding=“no-extra-padding“ column_padding_tablet=“inherit“ column_padding_phone=“inherit“ column_padding_position=“all“ column_element_direction_desktop=“default“ column_element_spacing=“default“ desktop_text_alignment=“default“ tablet_text_alignment=“default“ phone_text_alignment=“default“ background_color_opacity=“1″ background_hover_color_opacity=“1″ column_backdrop_filter=“none“ column_shadow=“none“ column_border_radius=“none“ column_link_target=“_self“ column_position=“default“ gradient_direction=“left_to_right“ overlay_strength=“0.3″ width=“1\/1″ tablet_width_inherit=“default“ animation_type=“default“ bg_image_animation=“none“ border_type=“simple“ column_border_width=“none“ column_border_style=“solid“][vc_column_text]\n

Mezin\u00e1rodn\u00ed t\u00fdm v\u011bdc\u016f, jeho\u017e sou\u010d\u00e1st\u00ed jsou i odborn\u00edci z v\u00fdzkumn\u00e9ho institutu CATRIN Univerzity Palack\u00e9ho, vyvinul nov\u00fd typ plazmonick\u00e9ho fotokatalyz\u00e1toru, jen\u017e dok\u00e1\u017ee s vyu\u017eit\u00edm slune\u010dn\u00ed energie velmi \u00fa\u010dinn\u011b a selektivn\u011b p\u0159em\u011b\u0148ovat biomasu na kl\u00ed\u010dov\u00e9 suroviny pro v\u00fdrobu bioplast\u016f. V\u00fdsledky v\u00fdzkumu, kter\u00e9 p\u0159edstavuj\u00ed v\u00fdznamn\u00fd krok sm\u011brem k udr\u017eiteln\u011bj\u0161\u00ed chemick\u00e9 v\u00fdrob\u011b,\u00a0zve\u0159ejnil presti\u017en\u00ed v\u011bdeck\u00fd \u010dasopis Nature Catalysis<\/a>.<\/strong><\/h2>\n[\/vc_column_text][divider line_type=“No Line“ custom_height=“25″][vc_column_text]Biomasa, tedy organick\u00fd materi\u00e1l rostlinn\u00e9ho \u010di \u017eivo\u010di\u0161n\u00e9ho p\u016fvodu, pat\u0159\u00ed mezi nejperspektivn\u011bj\u0161\u00ed obnoviteln\u00e9 zdroje pro v\u00fdrobu chemik\u00e1li\u00ed a materi\u00e1l\u016f s vysokou p\u0159idanou hodnotou. V\u00fdzkum se zam\u011b\u0159il na molekulu 5-hydroxymethylfurfuralu, kter\u00e1 vznik\u00e1 z cukr\u016f obsa\u017een\u00fdch v rostlinn\u00e9 biomase a je pova\u017eov\u00e1na za jeden z kl\u00ed\u010dov\u00fdch meziprodukt\u016f modern\u00edch biorafineri\u00ed. Jej\u00ed \u0159\u00edzenou oxidac\u00ed lze z\u00edskat 2,5-furandikarboxylovou kyselinu, slou\u010deninu vyu\u017eitelnou jako z\u00e1kladn\u00ed stavebn\u00ed jednotku biopolymer\u016f, nap\u0159\u00edklad plastu PEF, kter\u00fd je ekologickou alternativou b\u011b\u017en\u011b pou\u017e\u00edvan\u00e9ho PET.<\/p>\n

Dosavadn\u00ed pr\u016fmyslov\u00e9 postupy v\u00fdroby t\u00e9to l\u00e1tky jsou v\u0161ak technologicky n\u00e1ro\u010dn\u00e9. \u010casto vy\u017eaduj\u00ed siln\u011b z\u00e1sadit\u00e9 prost\u0159ed\u00ed, zv\u00fd\u0161en\u00e9 teploty nebo tlak. P\u0159esto trp\u00ed n\u00edzkou selektivitou, co\u017e vede ke vzniku ne\u017e\u00e1douc\u00edch vedlej\u0161\u00edch produkt\u016f a vy\u0161\u0161\u00ed energetick\u00e9 n\u00e1ro\u010dnosti. Sou\u010dasn\u00fd v\u00fdzkum se proto sna\u017e\u00ed nal\u00e9zt nov\u00e9 p\u0159\u00edstupy, kter\u00e9 by umo\u017enily tuto chemickou p\u0159em\u011bnu \u0159\u00eddit pomoc\u00ed sv\u011bteln\u00e9 energie za m\u00edrn\u011bj\u0161\u00edch a ekologicky \u0161etrn\u011bj\u0161\u00edch podm\u00ednek.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=“in_container“ full_screen_row_position=“middle“ column_margin=“default“ column_direction=“default“ column_direction_tablet=“default“ column_direction_phone=“default“ scene_position=“center“ left_padding_desktop=“0″ constrain_group_2=“yes“ right_padding_desktop=“0″ text_color=“dark“ text_align=“left“ row_border_radius=“none“ row_border_radius_applies=“bg“ overflow=“visible“ overlay_strength=“0.3″ gradient_direction=“left_to_right“ shape_divider_position=“bottom“ bg_image_animation=“none“ gradient_type=“default“ shape_type=““][vc_column column_padding=“no-extra-padding“ column_padding_tablet=“inherit“ column_padding_phone=“inherit“ column_padding_position=“all“ column_element_direction_desktop=“default“ column_element_spacing=“default“ desktop_text_alignment=“default“ tablet_text_alignment=“default“ phone_text_alignment=“default“ background_color_opacity=“1″ background_hover_color_opacity=“1″ column_backdrop_filter=“none“ column_shadow=“none“ column_border_radius=“none“ column_link_target=“_self“ column_position=“default“ gradient_direction=“left_to_right“ overlay_strength=“0.3″ width=“1\/2″ tablet_width_inherit=“default“ animation_type=“default“ bg_image_animation=“none“ border_type=“simple“ column_border_width=“none“ column_border_style=“solid“ column_padding_type=“default“ gradient_type=“default“][image_with_animation image_url=“7100″ image_size=“full“ animation_type=“entrance“ animation=“None“ animation_movement_type=“transform_y“ hover_animation=“none“ alignment=“center“ border_radius=“10px“ box_shadow=“none“ image_loading=“default“ max_width=“100%“ max_width_mobile=“default“][\/vc_column][vc_column right_padding_desktop=“5%“ column_element_direction_desktop=“default“ column_element_spacing=“default“ desktop_text_alignment=“default“ tablet_text_alignment=“default“ phone_text_alignment=“default“ background_color_opacity=“1″ background_hover_color_opacity=“1″ column_backdrop_filter=“none“ column_shadow=“none“ column_border_radius=“none“ column_link_target=“_self“ column_position=“default“ gradient_direction=“left_to_right“ overlay_strength=“0.3″ width=“1\/2″ tablet_width_inherit=“default“ animation_type=“default“ bg_image_animation=“none“ border_type=“simple“ column_border_width=“none“ column_border_style=“solid“ column_padding_type=“advanced“ gradient_type=“default“][vc_column_text]Nov\u011b vyvinut\u00fd katalyz\u00e1tor je zalo\u017een na kombinaci nanostrukturovan\u00e9ho nitridu titanu a extr\u00e9mn\u011b mal\u00fdch nano\u010d\u00e1stic slitiny ruthenia a platiny. Nitrid titanu slou\u017e\u00ed jako materi\u00e1l, kter\u00fd velmi \u00fa\u010dinn\u011b pohlcuje sv\u011btlo, zejm\u00e9na jeho infra\u010dervenou slo\u017eku, a p\u0159em\u011b\u0148uje jej na energeticky bohat\u00e9 elektrony a lok\u00e1ln\u00ed teplo. Tyto efekty n\u00e1sledn\u011b podporuj\u00ed aktivaci molekul\u00e1rn\u00edho kysl\u00edku na povrchu katalyticky aktivn\u00edch nano\u010d\u00e1stic, kde prob\u00edh\u00e1 vlastn\u00ed chemick\u00e1 reakce.<\/p>\n

\u201eKl\u00ed\u010dov\u00e9 je, \u017ee jednotliv\u00e9 slo\u017eky katalyz\u00e1toru spolupracuj\u00ed v dokonal\u00e9 sou\u010dinnosti. D\u00edky tomu dok\u00e1\u017eeme velmi p\u0159esn\u011b \u0159\u00eddit oxidaci 5-hydroxymethylfurfuralu a dos\u00e1hnout t\u00e9m\u011b\u0159 \u00fapln\u00e9 p\u0159em\u011bny na c\u00edlov\u00fd produkt bez pou\u017eit\u00ed siln\u00fdch chemick\u00fdch p\u0159\u00edsad nebo extr\u00e9mn\u00edch reak\u010dn\u00edch podm\u00ednek. Ve srovn\u00e1n\u00ed s dosavadn\u00edmi technologiemi je proces v\u00fdrazn\u011b selektivn\u011bj\u0161\u00ed, energeticky \u00fasporn\u011bj\u0161\u00ed a produkuje podstatn\u011b m\u00e9n\u011b odpadu,\u201c uvedl jeden z koresponden\u010dn\u00edch autor\u016f studie \u0160t\u011bp\u00e1n Kment z Univerzity Palack\u00e9ho.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=“in_container“ full_screen_row_position=“middle“ column_margin=“default“ column_direction=“default“ column_direction_tablet=“default“ column_direction_phone=“default“ scene_position=“center“ text_color=“dark“ text_align=“left“ row_border_radius=“none“ row_border_radius_applies=“bg“ overflow=“visible“ overlay_strength=“0.3″ gradient_direction=“left_to_right“ shape_divider_position=“bottom“ bg_image_animation=“none“][vc_column column_padding=“no-extra-padding“ column_padding_tablet=“inherit“ column_padding_phone=“inherit“ column_padding_position=“all“ column_element_direction_desktop=“default“ column_element_spacing=“default“ desktop_text_alignment=“default“ tablet_text_alignment=“default“ phone_text_alignment=“default“ background_color_opacity=“1″ background_hover_color_opacity=“1″ column_backdrop_filter=“none“ column_shadow=“none“ column_border_radius=“none“ column_link_target=“_self“ column_position=“default“ gradient_direction=“left_to_right“ overlay_strength=“0.3″ width=“1\/1″ tablet_width_inherit=“default“ animation_type=“default“ bg_image_animation=“none“ border_type=“simple“ column_border_width=“none“ column_border_style=“solid“][vc_column_text][\/vc_column_text][vc_column_text]Auto\u0159i studie zd\u016fraz\u0148uj\u00ed, \u017ee tento p\u0159\u00edstup umo\u017e\u0148uje aktivovat kysl\u00edk zcela odli\u0161n\u00fdm zp\u016fsobem ne\u017e u b\u011b\u017en\u00fdch katalytick\u00fdch syst\u00e9m\u016f. D\u00edky tomu lze reakci v\u00e9st ve vodn\u00e9m prost\u0159ed\u00ed bez p\u0159\u00eddavku z\u00e1sad a z\u00e1rove\u0148 se vyhnout neselektivn\u00edm reakc\u00edm, kter\u00e9 by vedly ke ztr\u00e1t\u00e1m materi\u00e1lu. V\u00fdsledkem je vysoce \u00fa\u010dinn\u00fd a p\u0159esn\u011b \u0159\u00edzen\u00fd proces vhodn\u00fd pro budouc\u00ed aplikace.<\/p>\n

Podle v\u011bdc\u016f p\u0159edstavuje tato plazmonick\u00e1 katalytick\u00e1 platforma dosud nevyu\u017eit\u00fd koncept v oblasti p\u0159em\u011bny biomasy. \u201eOtev\u00edr\u00e1 nov\u00e9 mo\u017enosti pro budouc\u00ed biorafinerie, kter\u00e9 by mohly ze slune\u010dn\u00ed energie a obnoviteln\u00fdch surovin vyr\u00e1b\u011bt plasty, rozpou\u0161t\u011bdla a dal\u0161\u00ed chemick\u00e9 produkty s v\u00fdrazn\u011b ni\u017e\u0161\u00ed uhl\u00edkovou stopou ne\u017e sou\u010dasn\u00e9 pr\u016fmyslov\u00e9 technologie,\u201c uzav\u0159el Kment.<\/p>\n

Na v\u00fdzkumu se pod\u00edleli v\u011bdci z CATRIN Univerzity Palack\u00e9ho a Centra energetick\u00fdch a environment\u00e1ln\u00edch technologi\u00ed i n\u00e1rodn\u00edho superpo\u010d\u00edta\u010dov\u00e9ho centra IT4Innovations na V\u0160B-TUO ve spolupr\u00e1ci s partnery z \u010c\u00edny, It\u00e1lie a Spojen\u00fdch st\u00e1t\u016f americk\u00fdch.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=“full_width_content“ full_screen_row_position=“middle“ column_margin=“default“ column_direction=“default“ column_direction_tablet=“default“ column_direction_phone=“default“ scene_position=“center“ top_padding=“2%“ left_padding_desktop=“36%“ constrain_group_2=“yes“ right_padding_desktop=“36%“ text_color=“dark“ text_align=“left“ row_border_radius=“none“ row_border_radius_applies=“bg“ overflow=“visible“ disable_element=“yes“ overlay_strength=“0.3″ gradient_direction=“left_to_right“ shape_divider_position=“bottom“ bg_image_animation=“none“ gradient_type=“default“ shape_type=““][vc_column column_padding=“no-extra-padding“ column_padding_tablet=“inherit“ column_padding_phone=“inherit“ column_padding_position=“all“ column_element_direction_desktop=“default“ column_element_spacing=“default“ desktop_text_alignment=“default“ tablet_text_alignment=“default“ phone_text_alignment=“default“ background_color_opacity=“1″ background_hover_color_opacity=“1″ column_backdrop_filter=“none“ column_shadow=“none“ column_border_radius=“none“ column_link_target=“_self“ column_position=“default“ gradient_direction=“left_to_right“ overlay_strength=“0.3″ width=“1\/1″ tablet_width_inherit=“default“ animation_type=“default“ bg_image_animation=“none“ border_type=“simple“ column_border_width=“none“ column_border_style=“solid“][image_with_animation image_url=“6593″ image_size=“full“ animation_type=“entrance“ animation=“None“ animation_movement_type=“transform_y“ hover_animation=“none“ alignment=““ border_radius=“none“ box_shadow=“none“ image_loading=“default“ max_width=“100%“ max_width_mobile=“default“][\/vc_column][\/vc_row][vc_row type=“in_container“ full_screen_row_position=“middle“ column_margin=“default“ column_direction=“default“ column_direction_tablet=“default“ column_direction_phone=“default“ scene_position=“center“ top_padding=“2%“ left_padding_desktop=“10%“ constrain_group_2=“yes“ right_padding_desktop=“10%“ text_color=“dark“ text_align=“left“ row_border_radius=“none“ row_border_radius_applies=“bg“ overflow=“visible“ disable_element=“yes“ overlay_strength=“0.3″ gradient_direction=“left_to_right“ shape_divider_position=“bottom“ bg_image_animation=“none“ gradient_type=“default“ shape_type=““][vc_column column_padding=“no-extra-padding“ column_padding_tablet=“inherit“ column_padding_phone=“inherit“ column_padding_position=“all“ column_element_direction_desktop=“default“ column_element_spacing=“default“ desktop_text_alignment=“default“ tablet_text_alignment=“default“ phone_text_alignment=“default“ background_color_opacity=“1″ background_hover_color_opacity=“1″ column_backdrop_filter=“none“ column_shadow=“none“ column_border_radius=“none“ column_link_target=“_self“ column_position=“default“ gradient_direction=“left_to_right“ overlay_strength=“0.3″ width=“1\/1″ tablet_width_inherit=“default“ animation_type=“default“ bg_image_animation=“none“ border_type=“simple“ column_border_width=“none“ column_border_style=“solid“][vc_column_text]\n

Projekt TECHSCALE (No.\u00a0CZ.02.01.01\/00\/22_008\/0004587) je financov\u00e1n z\u00a0programu M\u0160MT\u00a0OP\u00a0JAK \u0160pi\u010dkov\u00fd v\u00fdzkum, podpo\u0159en\u00e9ho z\u00a0EFRR\/ESF.<\/em><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

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