{"id":1894,"date":"2023-04-29T10:13:24","date_gmt":"2023-04-29T01:13:24","guid":{"rendered":"https:\/\/supraceramics.jp\/?p=1894"},"modified":"2025-02-10T10:14:06","modified_gmt":"2025-02-10T01:14:06","slug":"%e8%ab%96%e6%96%87%e7%99%ba%e8%a1%a8-2","status":"publish","type":"post","link":"https:\/\/supraceramics.jp\/en\/2023\/04\/1894\/","title":{"rendered":"Publication | J. Mater. Chem. A (Kimoto, Maeda, et al.) &#8220;Interlayer modification and single-layer exfoliation of the Ruddlesden-Popper perovskite oxynitride K2LaTa2O6N to improve photocatalytic H2 evolution activity&#8221;"},"content":{"rendered":"<p>Interlayer modification and single-layer exfoliation of the Ruddlesden-Popper perovskite oxynitride K<code>\u2082<\/code>LaTa<code>\u2082<\/code>O<code>\u2086<\/code>N to improve photocatalytic H<code>\u2082<\/code> evolution activity<\/p>\n<p>Yuta Shiroma, Hiroto Mogi, Takeaki Mashiko, Shuhei Yasuda, Shunta Nishioka, Toshiyuki Yokoi, Shintaro Ida, Koji Kimoto, Kazuhiko Maeda<\/p>\n<p>Modification of the interlayer nanospaces of lamellar solids is an effective means of enhancing the physical properties and chemical functions of such materials. The present work demonstrates the interlayer modification of the layered perovskite oxynitride K<small><sub>2<\/sub><\/small>LaTa<small><sub>2<\/sub><\/small>O<small><sub>6<\/sub><\/small>N, a photocatalyst having a \u223c600 nm absorption edge and exhibiting visible-light-driven H<small><sub>2<\/sub><\/small> evolution activity. This material was subjected to various interlayer modifications, including H<small><sup>+<\/sup><\/small>\/K<small><sup>+<\/sup><\/small> exchange, ethylamine (EA) intercalation and exfoliation with tetra(<em>n<\/em>-butyl)ammonium hydroxide (with subsequent restacking) while maintaining its capacity for visible light absorption. H<small><sub>2<\/sub><\/small> evolution activity from aqueous methanol with the aid of an optimal amount of a Pt cocatalyst was improved by a factor of approximately 60 following EA intercalation to increase the interlayer spacing of the host material. However, subsequent exfoliation-restacking to yield flocculated nanosheets led to a decrease in activity as compared with the EA-intercalated specimen. The present results indicate that the intercalation of EA provided interlayer nanospaces suitable for Pt cocatalyst loading and so promoted the photocatalytic H<small><sub>2<\/sub><\/small> evolution reaction, while the restacked nanosheets did not provide space for Pt loading.<\/p>\n<p><a href=\"https:\/\/pubs.rsc.org\/en\/content\/articlelanding\/2023\/ta\/d3ta01387a\" target=\"_blank\" rel=\"noopener\"><em>Journal of Materials Chemistry A<\/em>, in press.\u00a0 DOI: 10.1039\/D3TA01387A.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Interlayer modification and single-layer exfoliation of the Ruddlesden-Popper perovskite oxynitride K\u2082LaTa\u2082O\u2086N to improve photocatalytic H\u2082 evolution activity Yuta Shiroma, Hiroto Mogi, Takeaki Mashiko, Shuhei Yasuda, Shunta Nishioka, Toshiyuki Yokoi, Shintaro Ida, Koji Kimoto, Kazuhiko Maeda Modification of the interlayer nanospaces of lamellar solids is an effective means of enhancing the physical properties and chemical functions [&hellip;]<\/p>\n","protected":false},"author":222414606,"featured_media":0,"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":"","_themeisle_gutenberg_block_has_review":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_locale":"en_US","_original_post":"https:\/\/supraceramics.jp\/?p=537","_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[124830],"tags":[],"class_list":["post-1894","post","type-post","status-publish","format-standard","hentry","category-news","en-US"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":false,"jetpack_shortlink":"https:\/\/wp.me\/pe2JgX-uy","jetpack-related-posts":[{"id":537,"url":"https:\/\/supraceramics.jp\/2023\/04\/537\/","url_meta":{"origin":1894,"position":0},"title":"Publication | J. Mater. Chem. A (Kimoto, Maeda, et al.) &#8220;Interlayer modification and single-layer exfoliation of the Ruddlesden-Popper perovskite oxynitride K2LaTa2O6N to improve photocatalytic H2 evolution activity&#8221;","author":"shorike","date":"2023\u5e744\u670829\u65e5","format":false,"excerpt":"\u5171\u540c\u7814\u7a76\u6210\u679c: \u5c64\u72b6\u9178\u7a92\u5316\u7269\u3068\u6709\u6a5f\u5206\u5b50\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u6027\u80fd\u6c34\u7d20\u751f\u6210\u5149\u89e6\u5a92\u7cfb\u306e\u69cb\u7bc9\uff08C02\u524d\u7530\u3001B01\u6728\u672c\u3089\uff09 Interlayer modification and single-layer exfoliation of the Ruddlesden-Popper perovskite oxynitride K\u2082LaTa\u2082O\u2086N to improve photocatalytic H\u2082 evolution activity Yuta Shiroma, Hiroto Mogi, Takeaki Mashiko, Shuhei Yasuda, Shunta Nishioka, Toshiyuki Yokoi, Shintaro Ida, Koji Kimoto, Kazuhiko Maeda \u4e8c\u6b21\u5143\u69cb\u9020\u3092\u6709\u3059\u308b\u5c64\u72b6\u9178\u7a92\u5316\u7269\u306f\u3001\u305d\u306e\u7570\u65b9\u7684\u306a\u69cb\u9020\u3092\u8d77\u6e90\u3068\u3057\u305f\u30e6\u30cb\u30fc\u30af\u304b\u3064\u9ad8\u3044\u5149\u89e6\u5a92\u6d3b\u6027\u3092\u793a\u3059\u53ef\u80fd\u6027\u3092\u79d8\u3081\u305f\u6709\u671b\u306a\u6750\u6599\u7fa4\u3067\u3059\u3002\u672c\u7814\u7a76\u3067\u306f\u3001\u5c64\u72b6\u9178\u7a92\u5316\u7269K\u2082LaTa\u2082O\u2086\u306e\u5c64\u7a7a\u9593\u306b\u6709\u6a5f\u5206\u5b50\u3092\u30a4\u30f3\u30bf\u30fc\u30ab\u30ec\u30fc\u30c8\u3055\u305b\u3001\u3053\u308c\u3092\u8d77\u70b9\u3068\u3057\u3066Pt\u30ca\u30ce\u7c92\u5b50\u3092\u9ad8\u5206\u6563\u306b\u62c5\u6301\u3059\u308b\u3053\u3068\u306b\u6210\u529f\u3057\u307e\u3057\u305f\u3002\u3053\u306ePt\u62c5\u6301\u8a66\u6599\u306f\u3001\u53ef\u8996\u5149\u306b\u5fdc\u7b54\u3057\u3066\u6c34\u304b\u3089\u6c34\u7d20\u3092\u751f\u6210\u3059\u308b\u5149\u89e6\u5a92\u3068\u3057\u3066\u9ad8\u3044\u6027\u80fd\u3092\u793a\u3059\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002 Journal of Materials Chemistry A, in press.\u00a0 DOI: 10.1039\/D3TA01387A.","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/supraceramics.jp\/en\/category\/news\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2371,"url":"https:\/\/supraceramics.jp\/en\/2026\/05\/2371\/","url_meta":{"origin":1894,"position":1},"title":"Publication | Inorg. Chem. (Ishiwari, Tanaka, Maeda et al.) \u201cA Lead(II)-Based Coordination Polymer Exhibiting Photocatalytic and Electrochemical CO2 Reduction Activities\u201d","author":"shorike","date":"2026\u5e745\u67081\u65e5","format":false,"excerpt":"A Lead(II)-Based Coordination Polymer Exhibiting Photocatalytic and Electrochemical CO2 Reduction Activities Chomponoot Suppaso, Yura Jang, Saori Ogura, Ryohei Akiyoshi, Ryuichi Nakada, Megumi Okazaki, Fumitaka Ishiwari, Kazuyoshi Ogasawara, Akinori Saeki, Daisuke Tanaka,* Kazuhiko Maeda* Mixed-anion compounds incorporating multiple anionic species within a single crystal lattice can exhibit novel structural and functional\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/supraceramics.jp\/en\/category\/news\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1853,"url":"https:\/\/supraceramics.jp\/en\/2024\/07\/1853\/","url_meta":{"origin":1894,"position":2},"title":"Publication | Inorg. Chem. (Maeda, Tanaka, Ishiwari, Yamada et al.) \u201cLead(II)-Based Coordination Polymer Exhibiting Reversible Color Switching and Selective CO2 Photoreduction Properties\u201d","author":"shorike","date":"2024\u5e747\u670811\u65e5","format":false,"excerpt":"Lead(II)-Based Coordination Polymer Exhibiting Reversible Color Switching and Selective CO2 Photoreduction Properties Chomponoot Suppaso, Ryohei Akiyoshi, Hiroki Yamada, Yoshinobu Kamakura, Fumitaka Ishiwari, Kazuyoshi Ogasawara, Akinori Saeki, Daisuke Tanaka and Kazuhiko Maeda Herein, we report a new photofunctional Pb\u2013S-based coordination polymer (CP) with the formula [Pb(ATAT)(OAc)]n (ATAT = 3-amino-5-mercapto-1,2,4-triazole, OAc =\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/supraceramics.jp\/en\/category\/news\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2253,"url":"https:\/\/supraceramics.jp\/en\/2025\/12\/2253\/","url_meta":{"origin":1894,"position":3},"title":"Publication | ACS Catal. (Maeda, Onda et al.) \u201cCharge Transfer Dynamics in Dye-Sensitized Photocatalysts Using Metal Complex Sensitizers with Long-Wavelength Visible Light Absorption Based on Singlet\u2013Triplet Excitation\u201d","author":"shorike","date":"2025\u5e7412\u67086\u65e5","format":false,"excerpt":"Charge Transfer Dynamics in Dye-Sensitized Photocatalysts Using Metal Complex Sensitizers with Long-Wavelength Visible Light Absorption Based on Singlet\u2013Triplet Excitation Haruka Yamamoto, Toshiya Tanaka, Masahito Oura, Kelly M. Kopera, Megumi Okazaki, Ken Onda, Thomas E. Mallouk,* Kazuhiko Maeda* An Os(II) polypyridyl complex was applied as a photosensitizer in dye-sensitized photocatalyst systems\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/supraceramics.jp\/en\/category\/news\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2375,"url":"https:\/\/supraceramics.jp\/en\/2026\/05\/2375\/","url_meta":{"origin":1894,"position":4},"title":"Publication | Chem. Commun. (Onda, Maeda et al.) \u201cIntroducing an insulating alumina layer into a molecular photocathode to improve CO2 reduction activity\u201d","author":"shorike","date":"2026\u5e745\u67081\u65e5","format":false,"excerpt":"Introducing an insulating alumina layer into a molecular photocathode to improve CO2 reduction activity Yu Takagi, Masaya Yara, Toshiya Tanaka, Jo Onodera, Minato Tanaka, Megumi Okazaki, Kiyoshi Miyata, Ken Onda,* Osamu Ishitani,* Kazuhiko Maeda* Interfacial engineering with an Al2O3 overlayer enhances visible-light-driven CO2 reduction on p-type NiO photocathodes incorporating Ru(II)-based\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/supraceramics.jp\/en\/category\/news\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1855,"url":"https:\/\/supraceramics.jp\/en\/2024\/04\/1855\/","url_meta":{"origin":1894,"position":5},"title":"Publication | ACS Mater. Lett. (Ohmi, Fukui, Yamamoto et al.) \u201cFA4Pb2I7.5(SCN)0.5: n = 3  Member of Perovskite Homologous Series FAn+1Pbn\u22121I3n\u22121.5(SCN)0.5 with Columnar Defects\u201d","author":"shorike","date":"2024\u5e744\u670820\u65e5","format":false,"excerpt":"FA4Pb2I7.5(SCN)0.5: n = 3 Member of Perovskite Homologous Series FAn+1Pbn\u22121I3n\u22121.5(SCN)0.5 with Columnar Defects Takuya Ohmi, James R. Neilson, Wataru Taniguchi, Tomoya Fukui, Teppei Nagase, Yuki Haruta, Makhsud I. Saidaminov, Takanori Fukushima, Masaki Azuma, Takafumi Yamamoto Hybrid organic\u2013inorganic halide perovskites are an emerging class of optoelectronic materials. Among them, there are\u2026","rel":"","context":"In &quot;News&quot;","block_context":{"text":"News","link":"https:\/\/supraceramics.jp\/en\/category\/news\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/posts\/1894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/users\/222414606"}],"replies":[{"embeddable":true,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/comments?post=1894"}],"version-history":[{"count":1,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/posts\/1894\/revisions"}],"predecessor-version":[{"id":1895,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/posts\/1894\/revisions\/1895"}],"wp:attachment":[{"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/media?parent=1894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/categories?post=1894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/tags?post=1894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}