Three-Dimensional Phthalocyanine Metal-Catecholates for High Electrochemical Carbon Dioxide Reduction

被引：185

作者：

Matheu, Roc ^{[1
,2
]}

Gutierrez-Puebla, Enrique ^{[3
]}

Angeles Monge, M. ^{[3
]}

Diercks, Christian S. ^{[1
,2
]}

Kang, Joohoon ^{[1
,2
,5
]}

Prevot, Mathieu S. ^{[1
,2
]}

Pei, Xiaokun ^{[1
,2
]}

Hanikel, Nikita ^{[1
,2
]}

Zhang, Bing ^{[1
,2
]}

Yang, Peidong ^{[1
,2
]}

Yaghi, Omar M. ^{[1
,2
,4
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Chem, Mat Sci Div, Berkeley, CA 94720 USA

[2] Kavli Energy NanoSci Inst, Berkeley, CA 94720 USA

[3] CSIC, Inst Ciencia Mat Madrid, Dept New Architectures Mat Chem, Madrid 28049, Spain

[4] King Abdulaziz City Sci & Technol, UC Berkeley KACST Joint Ctr Excellence Nanomat Cl, Riyadh 11442, Saudi Arabia

[5] Sungkyunkwan Univ SKKU, Sch Adv Mat Sci & Engn, Suwon 16419, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2019年 / 141卷 / 43期

基金：

瑞士国家科学基金会;

关键词：

COVALENT ORGANIC FRAMEWORKS; SELECTIVE CO2 REDUCTION; ELECTROCATALYTIC REDUCTION; CATALYSTS;

D O I：

10.1021/jacs.9b09298

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 Fe-3(-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.

引用

页码：17081 / 17085

页数：5

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