Three-Dimensional Phthalocyanine Metal-Catecholates for High Electrochemical Carbon Dioxide Reduction,Journal of the American Chemical Society

当前位置： X-MOL 学术 › J. Am. Chem. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Three-Dimensional Phthalocyanine Metal-Catecholates for High Electrochemical Carbon Dioxide Reduction
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2019-10-15 , DOI: 10.1021/jacs.9b09298
Roc Matheu ₁ , Enrique Gutierrez-Puebla ₂ , M Ángeles Monge ₂ , Christian S Diercks ₁ , Joohoon Kang ₁ , Mathieu S Prévot ₁ , Xiaokun Pei ₁ , Nikita Hanikel ₁ , Bing Zhang ₁ , Peidong Yang ₁ , Omar M Yaghi _{1,

3}

Affiliation

The synthesis of a new anionic 3D metal-catecholate framework, termed MOF-1992, is achieved by linking tetratopic cobalt phthalocyanin-2,3,9,10,16,17,23,24-octaol linkers with Fe3(-C2O2-)6(OH2)2 trimers into an extended framework of roc topology. MOF-1992 exhibits sterically accessible Co active sites together with charge transfer properties. Cathodes based on MOF-1992 and carbon black (CB) display a high coverage of electroactive sites (270 nmol cm-2) and a high current density (-16.5 mA cm-2; overpotential, -0.52 V) for the CO2 to CO reduction reaction in water (faradaic efficiency, 80%). Over the 6 h experiment, MOF-1992/CB cathodes reach turnover numbers of 5800 with turnover frequencies of 0.20 s-1 per active site.

中文翻译：

用于高电化学二氧化碳还原的三维酞菁金属邻苯二酚盐

通过将四位钴酞菁-2,3,9,10,16,17,23,24-octaol 接头与 Fe3(-C2O2-) 连接，合成了一种新的阴离子 3D 金属-儿茶酚酸酯骨架，称为 MOF-1992 6(OH2)2 三聚体进入 roc 拓扑结构的扩展框架。MOF-1992 展示了空间可及的 Co 活性位点以及电荷转移特性。基于 MOF-1992 和炭黑 (CB) 的阴极显示出高电活性位点覆盖率 (270 nmol cm-2) 和高电流密度 (-16.5 mA cm-2；过电位，-0.52 V)，用于将 CO2 转化为 CO在水中的还原反应（法拉第效率，80%）。在 6 小时的实验中，MOF-1992/CB 阴极的周转次数达到 5800，每个活性位点的周转频率为 0.20 s-1。

更新日期：2019-10-15

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南