{"id":1454,"date":"2026-09-27T20:16:33","date_gmt":"2026-09-27T11:16:33","guid":{"rendered":"https:\/\/jaast.jp\/?p=1454"},"modified":"2026-09-27T20:16:33","modified_gmt":"2026-09-27T11:16:33","slug":"%e7%81%ab%e7%82%8e%e3%81%8c%e7%94%9f%e3%81%bf%e5%87%ba%e3%81%99%e3%83%8a%e3%83%8e%e8%a7%a6%e5%aa%92%e3%81%a7co%e2%82%82%e3%82%92%e8%b3%87%e6%ba%90%e3%81%ab%e5%a4%89%e3%81%88%e3%82%8bflame-made-nanocat","status":"publish","type":"post","link":"https:\/\/jaast.jp\/?p=1454","title":{"rendered":"\u706b\u708e\u304c\u751f\u307f\u51fa\u3059\u30ca\u30ce\u89e6\u5a92\u3067CO\u2082\u3092\u8cc7\u6e90\u306b\u5909\u3048\u308bFlame-Made Nanocatalysts for Converting CO\u2082 into Useful Fuel"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u7814\u7a76\u306e\u80cc\u666f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">2050\u5e74\u30ab\u30fc\u30dc\u30f3\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u306e\u5b9f\u73fe\u306b\u5411\u3051\u3066\u3001CO\u2082\u3092\u8cc7\u6e90\u3068\u3057\u3066\u518d\u5229\u7528\u3059\u308b\u300c\u30ab\u30fc\u30dc\u30f3\u30ea\u30b5\u30a4\u30af\u30eb\u300d\u304c\u6ce8\u76ee\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u4ee3\u8868\u7684\u306a\u53cd\u5fdc\u306e\u4e00\u3064\u304c\u3001<strong>CO\u2082\u30e1\u30bf\u30cd\u30fc\u30b7\u30e7\u30f3<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u53cd\u5fdc\u3067\u306f\u3001CO\u2082\u3068\u6c34\u7d20\u304b\u3089\u30e1\u30bf\u30f3\uff08CH\u2084\uff09\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002\u751f\u6210\u3055\u308c\u305f\u30e1\u30bf\u30f3\u306f\u90fd\u5e02\u30ac\u30b9\u3084\u767a\u96fb\u71c3\u6599\u3068\u3057\u3066\u65e2\u5b58\u306e\u30a4\u30f3\u30d5\u30e9\u3067\u5229\u7528\u3067\u304d\u308b\u305f\u3081\u3001\u793e\u4f1a\u5b9f\u88c5\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u6280\u8853\u3068\u3057\u3066\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30a2\u30ed\u30be\u30eb\u6280\u8853\u3067\u9ad8\u6027\u80fd\u89e6\u5a92\u3092\u5408\u6210<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u7814\u7a76\u3067\u306f\u3001<strong>Flame Spray Pyrolysis\uff08FSP\uff1a\u706b\u708e\u5674\u9727\u71b1\u5206\u89e3\u6cd5\uff09<\/strong>\u3068\u547c\u3070\u308c\u308b\u706b\u708e\u30a8\u30a2\u30ed\u30be\u30eb\u6cd5\u3092\u7528\u3044\u3066\u300160 wt.%\u3068\u3044\u3046\u9ad8\u6fc3\u5ea6\u306e\u30cb\u30c3\u30b1\u30eb\u3092\u62c5\u6301\u3057\u305fCeO\u2082\u7cfb\u89e6\u5a92\u3092\u5408\u6210\u3057\u307e\u3057\u305f\u3002 \u5f93\u6765\u6cd5\u3067\u306f\u30cb\u30c3\u30b1\u30eb\u91cf\u3092\u5897\u3084\u3057\u3059\u304e\u308b\u3068\u7c92\u5b50\u304c\u7c97\u5927\u5316\u3057\u3001\u6027\u80fd\u304c\u4f4e\u4e0b\u3059\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001FSP\u3067\u306f\u706b\u708e\u4e2d\u3067\u30ca\u30ce\u7c92\u5b50\u3092\u77ac\u6642\u306b\u5f62\u6210\u3067\u304d\u308b\u305f\u3081\u3001\u9ad8\u3044\u30cb\u30c3\u30b1\u30eb\u6fc3\u5ea6\u3067\u3082\u5fae\u7d30\u69cb\u9020\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7814\u7a76\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7814\u7a76\u30c1\u30fc\u30e0\u306fCeO\u2082\u306bZr\u3001Ti\u3001Y\u3001Mo\u3001La\u3092\u5c11\u91cf\u6dfb\u52a0\u3057\u3001CO\u2082\u30e1\u30bf\u30cd\u30fc\u30b7\u30e7\u30f3\u6027\u80fd\u3078\u306e\u5f71\u97ff\u3092\u8abf\u3079\u307e\u3057\u305f\u3002 \u305d\u306e\u7d50\u679c\u3001<strong>Zr\u6dfb\u52a0\u89e6\u5a92\u304c\u6700\u3082\u9ad8\u3044\u6d3b\u6027\u3092\u793a\u3057\u307e\u3057\u305f\u3002<\/strong>\u307e\u305f\u3001Ti\u6dfb\u52a0\u3001Y\u6dfb\u52a0\u3067\u3082\u6027\u80fd\u5411\u4e0a\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3067\u3001Mo\u6dfb\u52a0\u3001La\u6dfb\u52a0\u3067\u306f\u6d3b\u6027\u304c\u4f4e\u4e0b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u306a\u305c\u91cd\u8981\u306a\u306e\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8208\u5473\u6df1\u3044\u3053\u3068\u306b\u3001Zr\u6dfb\u52a0\u306b\u3088\u3063\u3066\u3001Ni\u7c92\u5b50\u30b5\u30a4\u30ba\u3001CeO\u2082\u7d50\u6676\u30b5\u30a4\u30ba\u3001Ni\u8868\u9762\u7a4d\u306f\u307b\u3068\u3093\u3069\u5909\u5316\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u3002 \u3064\u307e\u308a\u3001<strong>\u300c\u7c92\u5b50\u3092\u5c0f\u3055\u304f\u3057\u305f\u304b\u3089\u6027\u80fd\u304c\u5411\u4e0a\u3057\u305f\u300d\u306e\u3067\u306f\u306a\u304f\u3001\u89e6\u5a92\u8868\u9762\u306b\u65b0\u3057\u3044\u6d3b\u6027\u30b5\u30a4\u30c8\u304c\u5f62\u6210\u3055\u308c\u305f\u53ef\u80fd\u6027<\/strong>\u304c\u793a\u5506\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u89e6\u5a92\u8a2d\u8a08\u306e\u89b3\u70b9\u304b\u3089\u975e\u5e38\u306b\u91cd\u8981\u306a\u77e5\u898b\u3067\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30a2\u30ed\u30be\u30eb\u7814\u7a76\u3068\u3057\u3066\u306e\u610f\u7fa9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u7814\u7a76\u306f\u3001<strong>\u706b\u708e\u30a8\u30a2\u30ed\u30be\u30eb\u30d7\u30ed\u30bb\u30b9\u304c\u30a8\u30cd\u30eb\u30ae\u30fc\u30fb\u74b0\u5883\u6280\u8853\u306b\u8ca2\u732e\u3067\u304d\u308b\u3053\u3068\u3092\u793a\u3057\u305f\u597d\u4f8b<\/strong>\u3067\u3059\u3002FSP\u306f\u672c\u6765\u30ca\u30ce\u7c92\u5b50\u88fd\u9020\u6280\u8853\u3068\u3057\u3066\u767a\u5c55\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u672c\u7814\u7a76\u3067\u306f\u305d\u306e\u7279\u5fb4\u3092\u6d3b\u304b\u3057\u3066\u9ad8\u6027\u80fd\u89e6\u5a92\u3092\u5275\u88fd\u3057\u3066\u3044\u307e\u3059\u3002 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a8\u30a2\u30ed\u30be\u30eb\u5de5\u5b66\u304c\u3001\u30ab\u30fc\u30dc\u30f3\u30ea\u30b5\u30a4\u30af\u30eb\u3001\u6c34\u7d20\u793e\u4f1a\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u5909\u63db\u306b\u3069\u306e\u3088\u3046\u306b\u8ca2\u732e\u3067\u304d\u308b\u304b\u3092\u793a\u3059\u8208\u5473\u6df1\u3044\u7814\u7a76\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002 <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u8ad6\u6587\u60c5\u5831<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kakeru FUJIWARA, Shintaro TANABE, Koichi HIGASHIMINE, Yugo OSAKA, Takuya TSUJIGUCHI, and Akio KODAMA<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Flame Aerosol Synthesis of 60 wt.% Ni Supported on CeO\u2082\u2013MOx (M: Zr, Ti, Y, Mo, La) for CO\u2082 Methanation<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Earozoru Kenkyu<\/em>, Vol.40, No.1, pp.36-42 (2025) DOI: <a href=\"https:\/\/doi.org\/10.11203\/jar.40.36\">https:\/\/doi.org\/10.11203\/jar.40.36<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Turning CO\u2082 into Fuel with Flame-Made Nanocatalysts<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Background<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Carbon recycling is attracting growing attention as a strategy for achieving carbon neutrality. One promising route is <strong>CO\u2082 methanation<\/strong>, in which carbon dioxide reacts with hydrogen to produce methane (CH\u2084). Since methane can be transported and utilized through existing natural-gas infrastructure, this technology is considered highly attractive for practical implementation. <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Aerosol Technology for Catalyst Manufacturing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In this study, the authors employed <strong>Flame Spray Pyrolysis (FSP)<\/strong> to synthesize highly loaded nickel catalysts containing 60 wt.% Ni supported on CeO\u2082-based materials. Conventional wet-chemical methods often suffer from particle growth when the Ni loading becomes too high. By contrast, FSP enables the rapid formation of nanoparticles in a flame environment, allowing high metal loading while maintaining nanoscale structures.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Key Findings<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The researchers introduced several dopants into CeO\u2082: Zr, Ti, Y, Mo, La and investigated their influence on CO\u2082 methanation activity. Among all dopants tested, <strong>Zr exhibited the strongest promotional effect.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti and Y also enhanced catalytic activity, whereas Mo and La led to reduced performance. <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Why Is This Important?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Interestingly, the superior activity of the Zr-doped catalyst could not be explained simply by changes in: Ni particle size, CeO\u2082 crystallite size, Ni surface area because these properties remained nearly unchanged. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The results suggest that Zr incorporation may create new active sites or improve the intrinsic reactivity of existing catalytic sites.  This insight is valuable for the rational design of next-generation methanation catalysts.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Significance for Aerosol Science<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This work demonstrates how aerosol-based manufacturing techniques can contribute to energy and environmental technologies. Rather than serving only as a nanoparticle synthesis method, flame aerosol processing is shown here to be an effective platform for engineering high-performance catalysts for carbon recycling applications. The study highlights the broader impact of aerosol science in supporting future sustainable energy systems and carbon-neutral technologies. <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended Figure<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Figure 2a<\/strong> is recommended as the representative figure for the JAAST website because it clearly demonstrates the effect of different dopants on CO\u2082 methanation activity and immediately communicates the main scientific message of the paper.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"375\" height=\"412\" src=\"https:\/\/jaast.jp\/wp-content\/uploads\/2026\/09\/image-3.png\" alt=\"\" class=\"wp-image-1455\" srcset=\"https:\/\/jaast.jp\/wp-content\/uploads\/2026\/09\/image-3.png 375w, https:\/\/jaast.jp\/wp-content\/uploads\/2026\/09\/image-3-273x300.png 273w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8a18\u4e8b\u306f\u300e\u30a8\u30a2\u30ed\u30be\u30eb\u7814\u7a76\u300f\u63b2\u8f09\u8ad6\u6587\u3092\u5e83\u304f\u7d39\u4ecb\u3059\u308b\u305f\u3081\u3001\u65e5\u672c\u30a8\u30a2\u30ed\u30be\u30eb\u5b66\u4f1a\uff08JAAST\uff09\u304c\u4f5c\u6210\u3057\u305f\u89e3\u8aac\u8a18\u4e8b\u3067\u3059\u3002\u751f\u6210AI\u3092\u7de8\u96c6\u88dc\u52a9\u30c4\u30fc\u30eb\u3068\u3057\u3066\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u5185\u5bb9\u306f\u539f\u8457\u8ad6\u6587\u306b\u57fa\u3065\u304d\u3001\u5b66\u4f1a\u62c5\u5f53\u8005\u304c\u78ba\u8a8d\u30fb\u7de8\u96c6\u3057\u3066\u3044\u307e\u3059\u3002\u7814\u7a76\u5185\u5bb9\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u539f\u8457\u8ad6\u6587\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>This article was prepared by the Japan Association of Aerosol Science and Technology (JAAST) to introduce research published in<\/em> Earozoru Kenkyu. <em>Generative AI was used as an editorial support tool. The content has been reviewed and edited by JAAST and is based on the original research paper. Readers are encouraged to consult the original article for full scientific details.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u7814\u7a76\u306f\u3001\u706b\u708e\u30a8\u30a2\u30ed\u30be\u30eb\u30d7\u30ed\u30bb\u30b9\u304c\u30a8\u30cd\u30eb\u30ae\u30fc\u30fb\u74b0\u5883\u6280\u8853\u306b\u8ca2\u732e\u3067\u304d\u308b\u3053\u3068\u3092\u793a\u3057\u305f\u597d\u4f8b\u3067\u3059\u3002This work demonstrates how aerosol-based manufacturing techniques can contribute to energy and environmental technologies.<\/p>\n","protected":false},"author":8,"featured_media":1455,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[37],"tags":[59,60,58,27],"class_list":["post-1454","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-paper","tag-catalysts","tag-co2","tag-flame","tag-spray"],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/jaast.jp\/wp-content\/uploads\/2026\/09\/image-3.png","_links":{"self":[{"href":"https:\/\/jaast.jp\/index.php?rest_route=\/wp\/v2\/posts\/1454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jaast.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jaast.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jaast.jp\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/jaast.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1454"}],"version-history":[{"count":1,"href":"https:\/\/jaast.jp\/index.php?rest_route=\/wp\/v2\/posts\/1454\/revisions"}],"predecessor-version":[{"id":1456,"href":"https:\/\/jaast.jp\/index.php?rest_route=\/wp\/v2\/posts\/1454\/revisions\/1456"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jaast.jp\/index.php?rest_route=\/wp\/v2\/media\/1455"}],"wp:attachment":[{"href":"https:\/\/jaast.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jaast.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jaast.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}