NDLI: Electrochemical and nanogravimetric studies of iron phthalocyanine microparticles immobilized on gold in acidic and neutral media

Content Provider	Springer Nature Link
Author	Nemes, Ákos Inzelt, György
Copyright Year	2014
Abstract	An electrochemical quartz crystal nanobalance has been used to study the redox behavior of iron phthalocyanine (FePc) microparticles attached to gold in contact with acidic and neutral aqueous solutions at different pH values in the absence and presence of oxygen, respectively. Five redox transformations have been detected: one has been assigned to the Fe2+/Fe3+ redox process, while four of those have been assigned to the oxidation and reduction of the Pc ring; however, the reduction of Fe2+ and the reoxidation of Fe+ cannot be entirely excluded at potentials more negative than ca. −0.4 V vs. saturated calomel electrode (SCE). The redox processes are accompanied with significant mass changes which are related to the sorption and desorption of counterions and solvent molecules. An extensive solvent swelling occurs. The relatively slow motion of solvent molecules introduces a substantial scan rate dependence regarding the mass change during potential cycling. Due to the participation of H+ ions, the processes related to the oxidation and reduction of the Pc ring show pH dependence. Simultaneous with the charge transfer processes, solid-solid phase transitions can be assumed, especially in the case of the redox transformations occurring at most cathodic potentials. The mass change that can be detected in the presence of oxygen indicates a bonding of oxygen to FePc. During a cathodic voltammetric scan, the reduction of oxygen (ORR) starts when the central iron (III) ion of FePc is converted to Fe(II) during reduction. It follows that the electrocatalytic efficiency of FePc, which is comparable with that of Pt in acid and neutral solutions, cannot be expected at even lower overpotentials because the redox transformation of the central Fe ion of FePc determines the rate of the ORR.
Starting Page	3327
Ending Page	3337
Page Count	11
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	18
Issue Number	12
e-ISSN	14330768
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-11-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Iron phthalocyanine Microparticles Electrochemical quartz crystal nanobalance (EQCN) Redox transformations Solid-solid phase transition Oxygen reduction Physical Chemistry Electrochemistry Energy Storage Characterization and Evaluation of Materials Analytical Chemistry Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Electrochemical and nanogravimetric studies of poly(copper phthalocyanine) microparticles immobilized on gold in aqueous solutions

Study of the surface mass changes during the redox transformations of copper(II) phthalocyanine-tetrasulfonic acid on gold in acidic media

Electrochemical nanogravimetric study on the sorption processes occurring in multiwalled carbon nanotube layers immobilized on a gold surface

Electrochemical nanogravimetric study of the electropolymerization of 6-aminoindole and the redox transformations of the polymer formed in aqueous media

Erratum to: Electrochemical and nanogravimetric studies of poly(copper phthalocyanine) microparticles immobilized on gold in aqueous solutions

Electrochemical nanogravimetric studies of platinum in acid media

Erratum to: Electrochemical and nanogravimetric studies of poly(copper phthalocyanine) microparticles immobilized on gold in aqueous solutions

Electrochemical reduction of oxygen with iron phthalocyanine in neutral media

Generation and electrochemical nanogravimetric response of the third anodic hydrogen peak on a platinum electrode in sulfuric acid media

Electrochemical and nanogravimetric studies of iron phthalocyanine microparticles immobilized on gold in acidic and neutral media

Similar Documents

Electrochemical and nanogravimetric studies of poly(copper phthalocyanine) microparticles immobilized on gold in aqueous solutions

Study of the surface mass changes during the redox transformations of copper(II) phthalocyanine-tetrasulfonic acid on gold in acidic media

Electrochemical nanogravimetric study on the sorption processes occurring in multiwalled carbon nanotube layers immobilized on a gold surface

Electrochemical nanogravimetric study of the electropolymerization of 6-aminoindole and the redox transformations of the polymer formed in aqueous media

Erratum to: Electrochemical and nanogravimetric studies of poly(copper phthalocyanine) microparticles immobilized on gold in aqueous solutions

Electrochemical nanogravimetric studies of platinum in acid media

Erratum to: Electrochemical and nanogravimetric studies of poly(copper phthalocyanine) microparticles immobilized on gold in aqueous solutions

Electrochemical reduction of oxygen with iron phthalocyanine in neutral media

Generation and electrochemical nanogravimetric response of the third anodic hydrogen peak on a platinum electrode in sulfuric acid media

Electrochemical and nanogravimetric studies of iron phthalocyanine microparticles immobilized on gold in acidic and neutral media