{"id":2276,"date":"2026-01-19T12:18:05","date_gmt":"2026-01-19T03:18:05","guid":{"rendered":"https:\/\/supraceramics.jp\/?p=2276"},"modified":"2026-01-19T12:18:05","modified_gmt":"2026-01-19T03:18:05","slug":"publication-chem-mater-tsuji-tanaka-maeda-et-al-substituent-position-dependent-electrochemical-co2-reduction-activity-of-pb-s-based-coordination-polymers","status":"publish","type":"post","link":"https:\/\/supraceramics.jp\/en\/2026\/01\/2276\/","title":{"rendered":"Publication | Chem. Mater. (Tsuji, Tanaka, Maeda et al.) \u201cSubstituent-Position-Dependent Electrochemical CO2 Reduction Activity of Pb\u2013S-Based Coordination Polymers\u201d"},"content":{"rendered":"<p>Substituent-Position-Dependent Electrochemical CO<sub>2<\/sub> Reduction Activity of Pb\u2013S-Based Coordination Polymers<\/p>\n<p>Shunta Iwamoto, Ryohei Akiyoshi, Sora Nakasone, Chomponoot Suppaso, Megumi Okazaki, Kazuhide Kamiya, Yuta Tsuji,* Daisuke Tanaka,* Kazuhiko Maeda*<\/p>\n<p>Developing electrocatalysts for CO<sub>2<\/sub> reduction is essential for the effective use of renewable energy. Materials containing molecules such as coordination polymers have strong potential to exhibit high activity and selectivity. However, a critical shortcoming is that they often decompose into metals or metal oxides during reactions, thereby preventing the manifestation of functions unique to molecular structures. In this study, we compare a series of Pb\u2013S-based coordination polymers, [Pb(<i>x<\/i>-SPhOMe)<sub>2<\/sub>]<sub><i>n<\/i><\/sub> (HSPhOMe = methoxybenzenethiol, <i>x<\/i> = <i>ortho<\/i> (KGF-32), <i>meta<\/i> (KGF-33), and <i>para<\/i> (KGF-34)), as model electrocatalysts to investigate the design guidelines. They have different crystal structures in terms of dimensionality and coordination environment. Among them, KGF-32 shows the highest Faradaic efficiency for formate production: 96.6 \u00b1 2.9% at \u22121.0 V vs RHE with a partial current density of \u22129.76 \u00b1 2.1 mA cm<sup>\u20132<\/sup>. By contrast, KGF-33 and -34 show lower Faradaic efficiencies for formate production, along with more pronounced decomposition to PbCO<sub>3<\/sub>. We use scanning electron microscopy, X-ray diffraction, and Raman spectroscopy to confirm that KGF-32 retains much of its crystal structure during operation, whereas KGF-33 and -34 decompose extensively. In addition, density functional theory calculations reveal that the energy barrier for formate production on KGF-32 is lower than that on PbCO<sub>3<\/sub>, which explains its superior catalytic activity. Our work demonstrates the inherent advantages of coordination-polymer-based electrocatalysts and provides valuable guidelines for designing more efficient and stable systems for CO<sub>2<\/sub> reduction.<\/p>\n<p><a href=\"https:\/\/doi.org\/10.1021\/acs.chemmater.5c03173\">Chem. Mater. 2026, in press.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Substituent-Position-Dependent Electrochemical CO2 Reduction Activity of Pb\u2013S-Based Coordination Polymers Shunta Iwamoto, Ryohei Akiyoshi, Sora Nakasone, Chomponoot Suppaso, Megumi Okazaki, Kazuhide Kamiya, Yuta Tsuji,* Daisuke Tanaka,* Kazuhiko Maeda* Developing electrocatalysts for CO2 reduction is essential for the effective use of renewable energy. Materials containing molecules such as coordination polymers have strong potential to exhibit high activity [&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=2274","_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":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-2276","post","type-post","status-publish","format-standard","hentry","category-news","en-US"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/pe2JgX-AI","jetpack-related-posts":[{"id":2274,"url":"https:\/\/supraceramics.jp\/2026\/01\/2274\/","url_meta":{"origin":2276,"position":0},"title":"Publication | Chem. Mater. (Tsuji, Tanaka, Maeda et al.) \u201cSubstituent-Position-Dependent Electrochemical CO2 Reduction Activity of Pb\u2013S-Based Coordination Polymers\u201d","author":"shorike","date":"2026\u5e741\u670819\u65e5","format":false,"excerpt":"Substituent-Position-Dependent Electrochemical CO2 Reduction Activity of Pb\u2013S-Based Coordination Polymers Shunta Iwamoto, Ryohei Akiyoshi, Sora Nakasone, Chomponoot Suppaso, Megumi Okazaki, Kazuhide Kamiya, Yuta Tsuji,* Daisuke Tanaka,* Kazuhiko Maeda* \u518d\u751f\u53ef\u80fd\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u6709\u52b9\u6d3b\u7528\u3059\u308b\u305f\u3081\u3001CO2\u3092\u6709\u7528\u7269\u8cea\u3078\u5909\u63db\u3059\u308b\u96fb\u6975\u89e6\u5a92\u306e\u958b\u767a\u304c\u6c42\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u672c\u7814\u7a76\u3067\u306f\u3001\u7570\u306a\u308b\u7d50\u6676\u69cb\u9020\u3092\u6709\u3059\u308bPb\u2013S\u7cfb\u914d\u4f4d\u9ad8\u5206\u5b50\u306b\u7740\u76ee\u3057\u3001\u7f6e\u63db\u57fa\u4f4d\u7f6e\u306e\u9055\u3044\u304cCO2\u9084\u5143\u7279\u6027\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u4f53\u7cfb\u7684\u306b\u6bd4\u8f03\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u7d50\u679c\u3001\u30aa\u30eb\u30c8\u7f6e\u63db\u4f53\uff08KGF-32\uff09\u306f\u9ad8\u3044\u69cb\u9020\u5b89\u5b9a\u6027\u3092\u4fdd\u3063\u305f\u307e\u307e\u3001\u30ae\u9178\u751f\u6210\u306b\u5bfe\u3057\u3066\u6975\u3081\u3066\u9ad8\u3044\u9078\u629e\u6027\u3092\u793a\u3059\u3053\u3068\u3092\u898b\u3044\u3060\u3057\u307e\u3057\u305f\u3002\u5b9f\u9a13\u304a\u3088\u3073\u7406\u8ad6\u8a08\u7b97\u304b\u3089\u3001\u7d50\u6676\u69cb\u9020\u3068\u914d\u4f4d\u74b0\u5883\u304c\u89e6\u5a92\u5b89\u5b9a\u6027\u3068\u53cd\u5fdc\u6d3b\u6027\u3092\u652f\u914d\u3059\u308b\u91cd\u8981\u306a\u8981\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u660e\u3089\u304b\u3068\u306a\u308a\u3001\u5206\u5b50\u6027\u96fb\u6975\u89e6\u5a92\u8a2d\u8a08\u306e\u65b0\u305f\u306a\u6307\u91dd\u3092\u63d0\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u672c\u6210\u679c\u306f\u3001Chem. Mater.\u8a8c\u306b\u30aa\u30f3\u30e9\u30a4\u30f3\u63b2\u8f09\u3055\u308c\u307e\u3057\u305f\u3002 Chem. Mater. 2026, in press.","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":2276,"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":1830,"url":"https:\/\/supraceramics.jp\/en\/2024\/11\/1830\/","url_meta":{"origin":2276,"position":2},"title":"Publication | Adv. Funct. Mater. (Maeda, Ishiwari, Tanaka et al.) \u201cFibrous Pb(II)-Based Coordination Polymer Operable as a Photocatalyst and Electrocatalyst for High-Rate, Selective CO2-to-Formate Conversion\u201d","author":"shorike","date":"2024\u5e7411\u670814\u65e5","format":false,"excerpt":"Fibrous Pb(II)-Based Coordination Polymer Operable as a Photocatalyst and Electrocatalyst for High-Rate, Selective CO2-to-Formate Conversion Chomponoot Suppaso, Ryosuke Nakazato, Shoko Nakahata, Yoshinobu Kamakura, Fumitaka Ishiwari, Akinori Saeki, Daisuke Tanaka, Kazuhide Kamiya,* Kazuhiko Maeda* A nonporous [Pb(tadt)]n (tadt = 1,3,4-thiadiazole-2,5-dithiolate) coordination polymer, KGF-9, with a 2D infinite (\u2212Pb\u2212S\u2212)n structure has been\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":825,"url":"https:\/\/supraceramics.jp\/2023\/12\/825\/","url_meta":{"origin":2276,"position":3},"title":"The 2nd Symposium on Materials Chemistry for New Properties and Functions","author":"shorike","date":"2023\u5e7412\u67084\u65e5","format":false,"excerpt":"The 2nd Symposium on Materials Chemistry for New Properties and Functions Ookayama Main building 3F Room 345 (\u7b2c2 \u4f1a\u8b70\u5ba4), Tokyo Institute of Technology 5 December, 2023 Program: 10:40 Opening (Kazuhiko Maeda, Tokyo Tech) 10:45 (Oxy)nitrides\/carbides: materials of choice for catalysis (Franck Tessier, Rennes U.) 11:30 From Chemical Solution Processes to\u2026","rel":"","context":"In &quot;Event&quot;","block_context":{"text":"Event","link":"https:\/\/supraceramics.jp\/en\/category\/event\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":534,"url":"https:\/\/supraceramics.jp\/2023\/01\/534\/","url_meta":{"origin":2276,"position":4},"title":"Publication | ACS Catal. (Maeda, et al.) &#8220;Selective CO\u2082-to-Formate Conversion Driven by Visible Light over a Precious-Metal-Free Nonporous Coordination Polymer&#8221;","author":"shorike","date":"2023\u5e741\u670810\u65e5","format":false,"excerpt":"Selective CO\u2082-to-Formate Conversion Driven by Visible Light over a Precious-Metal-Free Nonporous Coordination Polymer Yoshinobu Kamakura, Shuhei Yasuda, Naoki Hosokawa, Shunta Nishioka, Sawa Hongo, Toshiyuki Yokoi, Daisuke Tanaka*, Kazuhiko Maeda* Metal\u2013organic frameworks (MOFs) and coordination polymers (CPs) are potential candidates for high-performance photocatalysts because of their high tunability of electronic and\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":1899,"url":"https:\/\/supraceramics.jp\/en\/2023\/01\/1899\/","url_meta":{"origin":2276,"position":5},"title":"Publication | ACS Catal. (Maeda, et al.) &#8220;Selective CO\u2082-to-Formate Conversion Driven by Visible Light over a Precious-Metal-Free Nonporous Coordination Polymer&#8221;","author":"shorike","date":"2023\u5e741\u670810\u65e5","format":false,"excerpt":"Selective CO\u2082-to-Formate Conversion Driven by Visible Light over a Precious-Metal-Free Nonporous Coordination Polymer Yoshinobu Kamakura, Shuhei Yasuda, Naoki Hosokawa, Shunta Nishioka, Sawa Hongo, Toshiyuki Yokoi, Daisuke Tanaka*, Kazuhiko Maeda* Metal\u2013organic frameworks (MOFs) and coordination polymers (CPs) are potential candidates for high-performance photocatalysts because of their high tunability of electronic and\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\/2276","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=2276"}],"version-history":[{"count":1,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/posts\/2276\/revisions"}],"predecessor-version":[{"id":2277,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/posts\/2276\/revisions\/2277"}],"wp:attachment":[{"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/media?parent=2276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/categories?post=2276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/supraceramics.jp\/wp-json\/wp\/v2\/tags?post=2276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}