Molecular engineering of dispersed tin phthalocyanine on carbon nanotubes for selective CO2 reduction to formate

Chen，Baotong1; Zou，Haiyuan3; Gong，Lei1; Zhang，Hao1; Li，Ning1; Pan，Houhe1; Wang，Kang1; Yang，Tao4; Liu，Yunpeng2; Duan，Lele3; Liu，Jiemin1; Jiang，Jianzhuang1

2024-05-05

10.1016/j.apcatb.2023.123650

Applied Catalysis B: Environmental   影响因子和分区

0926-3373

The synthesis of formic acid/formate from CO electrolysis is appealing for the sustainable production of fuels, which however requires highly active and selective electrocatalysts. Herein, supporting a series of phthalocyanine tin (IV) complexes on multi-walled carbon nanotubes (CNTs) generated three composite catalysts, namely SnPc@CNTs, SnPc-8 F@CNTs, and SnPc-8OCH @CNTs. Electrochemical tests indicate the high activity of these three catalysts in particular SnPc-8 F@CNTs towards CO-to-formate conversion with a maximal Faraday efficiency (FE) of 91.7% at − 1.2 V versus RHE and excellent stability in flow cell, comparable to thus far state-of-the-art catalysts towards CO-to-formate conversion. Remarkably, when used as the cathode catalyst in membrane electrode assembly, SnPc-8 F@CNTs stably delivers a current density of 100 mA cm with a FE of 85% at − 2.6 V for 200 h. A series of in situ spectroscopy tests and theoretical calculations demonstrate the significant effect of the electron-withdrawing F atoms on improving the catalytic activity of SnPc-8 F@CNTs.

CO2 reduction reaction Formate molecular engineering MEA cell Tin phthalocyanine

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英语

其他

CHEMISTRY

2-s2.0-85181171721

Scopus

1.Beijing Advanced Innovation Center for Materials Genome Engineering,Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials,Department of Chemistry and Chemical Engineering,School of Chemistry and Biological Engineering,University of Science and Technology Beijing,Beijing,100083,China
2.Institute of High Energy Physics,Chinese Academy of Sciences,Beijing,100049,China
3.Department of Chemistry and Shenzhen Grubbs Institute Southern University of Science and Technology (SUSTech),China
4.Innovation Research Institute for Carbon Neutrality,University of Science and Technology Beijing,Beijing,100083,China

Chen，Baotong,Zou，Haiyuan,Gong，Lei,et al. Molecular engineering of dispersed tin phthalocyanine on carbon nanotubes for selective CO2 reduction to formate[J]. Applied Catalysis B: Environmental,2024,344.

Chen，Baotong.,Zou，Haiyuan.,Gong，Lei.,Zhang，Hao.,Li，Ning.,...&Jiang，Jianzhuang.(2024).Molecular engineering of dispersed tin phthalocyanine on carbon nanotubes for selective CO2 reduction to formate.Applied Catalysis B: Environmental,344.

Chen，Baotong,et al."Molecular engineering of dispersed tin phthalocyanine on carbon nanotubes for selective CO2 reduction to formate".Applied Catalysis B: Environmental 344(2024).