التفاصيل البيبلوغرافية
| العنوان: |
Enhancing the Electrochemical CO 2 Reduction Activity of Polymer-Encapsulated Cobalt Phthalocyanine Films by Modulating the Loading of Catalysts, Polymers, and Carbon Supports |
| المؤلفون: |
Taylor L. Soucy (11864757), Yingshuo Liu (11570458), Jonah B. Eisenberg (11864760), Charles C. L. McCrory (7852670) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biochemistry, Medicine, Biotechnology, Science Policy, Space Science, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, still important even, plane graphite electrodes, carbon support loadings, based electrodes using, increase charge transport, incorporating graphite powder, low gp loadings, previously reported copc, immobilized onto carbon, 2 , gp catalyst films, incorporating gp, charge transfer, polymer films, gp surface, systematically explore, system ’, sufficiently fast, similar selectivity, rate limiting, procedures outlined, previous studies |
| الوصف: |
Cobalt phthalocyanine (CoPc) has been extensively studied as a catalyst for the electrochemical reduction of CO 2 to value-added products. Previous studies have shown that CoPc is a competent and efficient catalyst when immobilized onto carbon-based electrodes using a polymer binder, especially when immobilized with a graphitic carbon powder support to increase charge transport. In this study, we systematically explore the influence of incorporating graphite powder (GP) into a polymer-encapsulated CoPc on the system’s activity for the electrochemical reduction of CO 2 . We report a protocol for incorporating GP into CoPc/polymer/GP catalyst films that facilitates physisorption of CoPc to GP, leading to increased activity for CO 2 reduction. We show that the activity for CO 2 reduction increases with GP loading at low GP loadings, but at sufficiently high GP loadings the activity plateaus as charge transfer is sufficiently fast to no longer be rate limiting. We also demonstrate that axial coordination is still important even in the presence of GP, suggesting that CoPc does not fully coordinate to heteroatoms on the GP surface. We develop a set of optimized conditions under which the CoPc/polymer/GP catalyst systems reduce CO 2 with higher activity and similar selectivity to previously reported CoPc/polymer films on edge-plane graphite electrodes. The procedures outlined in this study will be used in future studies to optimize catalyst, polymer, and carbon support loadings for other polymer–catalyst composite systems for electrocatalytic transformations. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Enhancing_the_Electrochemical_CO_sub_2_sub_Reduction_Activity_of_Polymer-Encapsulated_Cobalt_Phthalocyanine_Films_by_Modulating_the_Loading_of_Catalysts_Polymers_and_Carbon_Supports/17326890 |
| DOI: |
10.1021/acsaem.1c02689.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsaem.1c02689.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.6F59282B |
| قاعدة البيانات: |
BASE |