Probing the Synergistic Effects of Mg 2+ on CO 2 Reduction Reaction on CoPc by In Situ Electrochemical Scanning Tunneling Microscopy.

التفاصيل البيبلوغرافية
العنوان:	Probing the Synergistic Effects of Mg ²⁺ on CO 2 Reduction Reaction on CoPc by In Situ Electrochemical Scanning Tunneling Microscopy.
المؤلفون:	Wang YQ; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China.; University of Chinese Academy of Sciences, Beijing100049, China., Dan XH; University of Chinese Academy of Sciences, Beijing100049, China., Wang X; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China., Yi ZY; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China.; University of Chinese Academy of Sciences, Beijing100049, China., Fu J; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China.; University of Chinese Academy of Sciences, Beijing100049, China., Feng YC; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China.; University of Chinese Academy of Sciences, Beijing100049, China., Hu JS; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China.; University of Chinese Academy of Sciences, Beijing100049, China., Wang D; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China.; University of Chinese Academy of Sciences, Beijing100049, China., Wan LJ; CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China.; University of Chinese Academy of Sciences, Beijing100049, China.
المصدر:	Journal of the American Chemical Society [J Am Chem Soc] 2022 Nov 02; Vol. 144 (43), pp. 20126-20133. Date of Electronic Publication: 2022 Oct 19.
نوع المنشور:	Journal Article; Research Support, Non-U.S. Gov't
اللغة:	English
بيانات الدورية:	Publisher: American Chemical Society Country of Publication: United States NLM ID: 7503056 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5126 (Electronic) Linking ISSN: 00027863 NLM ISO Abbreviation: J Am Chem Soc Subsets: MEDLINE
أسماء مطبوعة:	Publication: Washington, DC : American Chemical Society Original Publication: Easton, Pa. [etc.]
مواضيع طبية MeSH:	Microscopy, Scanning Tunneling/methods , Organometallic Compounds, Carbon Dioxide ; Gold
مستخلص:	We report herein the in situ electrochemical scanning tunneling microscopy (ECSTM) study on the synergistic effect of Mg ²⁺ in CO 2 reduction reaction (CO 2 RR) catalyzed by cobalt phthalocyanine (CoPc). ECSTM measurement molecularly resolves the self-assembled CoPc monolayer on the Au(111) substrate. In the CO 2 environment, high-contrast species are observed in the adlayer and assigned to the CO 2 adsorption on CoPc. Furthermore, the contrast of the CO 2 -bound complex is higher in Mg ²⁺ -containing electrolytes than in Mg ²⁺ -free electrolytes, indicating the formation of the CoPc-CO 2 -Mg ²⁺ complex. The surface coverage of adsorbed CO 2 is positively correlated with the Mg ²⁺ concentration as the additive in electrolytes up to a plateau of 30.8 ± 2.7% when c (Mg ²⁺ ) > 30 mM. The potential step experiment indicates the higher CO 2 adsorption dynamics in Mg ²⁺ -containing electrolytes than without Mg ²⁺ . The rate constants of CO 2 adsorption and dissociation in different electrolytes are extracted from the data fitting of statistical results from in situ ECSTM experiments.
المشرفين على المادة:	3317-67-7 (cobalt phthalocyanine) 142M471B3J (Carbon Dioxide) 7440-57-5 (Gold) 0 (Organometallic Compounds)
تواريخ الأحداث:	Date Created: 20221019 Date Completed: 20221103 Latest Revision: 20221201
رمز التحديث:	20221202
DOI:	10.1021/jacs.2c09862
PMID:	36259686
قاعدة البيانات:	MEDLINE

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تدمد:	1520-5126
DOI:	10.1021/jacs.2c09862