Heterogenous Preparations of Solution-Processable Cobalt Phthalocyanines for Carbon Dioxide Reduction Electrocatalysis
نویسندگان
چکیده
The development and implementation of technology that can capture transform carbon dioxide (CO2) is ongoing interest. To end, the integration molecular electrocatalysts into devices appealing because desirable features molecules, such as ability to modify active sites. Here, we explore how identity aliphatic group in 1,4,8,11,15,18,22,25-octaalkoxyphthalocyanine cobalt(II) affects catalytic behavior for heterogeneous CO2 reduction electrocatalysis. alkyl R-groups correspond n-butoxy, sec-butoxy, 2-ethylhexoxy. All catalysts are soluble organic solvents readily solution-processed. However, larger 2-ethylhexoxy showed solution aggregation at concentrations ≥1 mM, it was, general, an inferior catalyst. other two show comparable maximum currents, but octa sec-butoxy-bearing catalyst rate constants based on foot-of-the-wave analyses. This hypothesized be due sec-butoxy groups eliminate alkoxy oxygen block Co Sites via ligation. activity rationalized solid-state structures. Cobalt(II) phthalocyanine its derivatives known good catalysts, results from this work suggest straightforward incorporation bulky improve processability per site by discouraging aggregation.
منابع مشابه
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ژورنال
عنوان ژورنال: Inorganics (Basel)
سال: 2023
ISSN: ['2304-6740']
DOI: https://doi.org/10.3390/inorganics11010043