Improvement of the adhesion between polyaniline and commercial carbon paper by acid treatment and its application in supercapacitor electrodes

Choi, Dong Joo; Boscá, Alberto; Pedrós, J.; Martínez, Javier López; Barranco, Violeta; Rojo, J. M.; Yoo, Jung Joon; Kim, Young‐Ho; Calle, F.

doi:10.1080/09276440.2016.1112221

Cited by 10 publications

(7 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present time, new carbon materials known as “graphene”, with a one-atom-thick two-dimensional (2D) planar sheet of sp 2 -bonded carbon atoms, are considered as a suitable candidate due to its extraordinary high surface area (2630 m 2 g –1 ), excellent electronic conductivity, high chemical and thermal stability, large range potential windows, and high surface chemistry. − One specific branch of graphene research deals with graphene oxide, which consists of various oxygen-containing functional groups on their basal planes (epoxy, hydroxyl) and edges (carbonyl, carbonyl). , Because of oxygen functionalities attached on surfaces and edges, it shows hydrophilic nature and can be easily dispersed in water and organic solvents to form stable colloidal suspensions for the attachment of metal oxide NPs . Moreover, these different types of oxygen-containing groups can be further utilized to graft polymers and metal oxides to form graphene-based hybrids materials. , …”

Section: Introductionmentioning

confidence: 99%

“…21 Moreover, these different types of oxygen-containing groups can be further utilized to graft polymers and metal oxides to form graphene-based hybrids materials. 22,23 Graphene-based Fe 3 O 4 hybrids materials as electrodes have attracted intensive scientific research interest due to their positive synergistic effects of pseudocapacitance and EDLC between graphene and metal oxides. 24,25 Several other metal oxides, such as NiO, Co 3 O 4 , Cu 2 O, RuO 2 , MnO 2 , V 2 O 5 SnO 2 , ZnO, TiO 2 , etc.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe₃O₄/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode

Kumar

Singh

Vaz

et al. 2017

ACS Appl. Mater. Interfaces

285

103

View full text Add to dashboard Cite

In the present work, we have synthesized three-dimensional (3D) reduced graphene oxide nanosheets (rGO NSs) containing iron oxide nanoparticles (FeO NPs) hybrids (3D FeO/rGO) by one-pot microwave approach. Structural and morphological studies reveal that the as-synthesized FeO/rGO hybrids were composed of faceted FeO NPs induced into the interconnected network of rGO NSs. The morphologies and structures of the 3D hybrids have been characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy and X-ray photoelectron spectrometer (XPS). The electrochemical studies were analyzed by cyclic voltammetry, galvanostatic charge/discharge measurements, and electrochemical impedance spectroscopy, which demonstrate superior electrochemical performance as supercapacitors electrode application. The specific capacitances of 3D hybrid materials was 455 F g at the scan rate of 8 mV s, which is superior to that of bare FeO NPs. Additionally, the 3D hybrid shows good cycling stability with a retention ratio of 91.4 after starting from ∼190 cycles up to 9600 cycles. These attractive results suggest that this 3D FeO/rGO hybrid shows better performance as an electrode material for high-performance supercapacitors.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe₃O₄/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode

Kumar

Singh

Vaz

et al. 2017

ACS Appl. Mater. Interfaces

285

103

View full text Add to dashboard Cite

show abstract

“…However, such treatment was not necessary for the electrodeposition of the composite. Furthermore, when the CP was treated with acid, the average diameter of the PANi-Cu nanofibers was 43 nm, and some PANi-Cu nanofibers aggregated during chemical polymerization . In another study that employed the chemical synthesis of PANi-Cu, the fibers were more variable, with diameters ranging between 50 and 120 nm .…”

Section: Resultsmentioning

confidence: 99%

“…By using Opus software (Bruker Corporation, Massachusetts, United States), the baseline corrections were made carefully, and peaks were determined. Although the use of chemical polymerization for coating PANi-Cu on the carbon paper has been reported in some studies for the development of supercapacitor electrodes, 67,68 there is, to our knowledge, no previous report available on the use of electropolymerization of aniline (ANi) for coating PANi-Cu on the carbon paper for MFCs or PEM fuel cells. A study that considered using a PANi-Cu catalyst for a fuel cell 69 utilized chemical polymerization and was subsequently deposited on a carbon paper.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Polyaniline–Copper Composite: A Non-precious Metal Cathode Catalyst for Low-Temperature Fuel Cells

et al. 2021

View full text Add to dashboard Cite

Platinum has been used extensively in low-temperature fuel cells (LTFCs), including polymer electrolyte fuel cells and microbial fuel cells (MFCs). Still, its replacement with low-cost alternatives has been a matter of considerable conjecture for some time. This study investigates the possible use of an electrochemically synthesized CP/PANi-Cu cathode as a low-cost replacement for a Pt cathode in MFCs and LTFCs. Thorough and detailed characterization and evaluation of the CP/PANi-Cu cathode was undertaken by electrochemical and advanced surface analytical methods, including scanning electron microscopy (SEM), XPS, FTIR, 4-D X-ray microscopy, and 3D profilometry. Direct comparison of the proposed cathode with a CP/Pt cathode is used to justify its adequacy as a replacement for a platinum cathode. The PANi-Cu coating had a uniform nano-fibrous structure, which enhanced its performance as a cathode. In particular, the incorporation of copper into the coating enhanced its ORR activity. By comparison, the optimum CP/PANi-Cu cathode achieved a 170% higher j 0apparent of 0.088 ± 0.003 mA cm −2 than obtained with a standard CP/Pt cathode with a Pt loading of 0.5 mg cm −2 . Even when a higher Pt loading of 1.5 mg cm −2 was used, the CP/PANi-Cu cathode performance was still slightly better. The superiority of the CP/PANi-Cu cathode was also reflected in the obtained R ct value of 1.456 Ω cm −2 compared with 3.95 and 1.485 Ω cm −2 obtained with the CP/Pt cathode, which has a Pt loading of 0.5 and 1.5 mg cm −2 , respectively. The results obtained by SEM, XPS, FTIR, 4D X-ray microscopy, and 3D profilometry confirmed the unique nature, composition, and presence of copper in the CP/PANi-Cu composite. The results of this study clearly demonstrate that the proposed CP/PANi-Cu cathode can be adopted as a suitable low-cost replacement for a Pt cathode in LTFCs.

show abstract

Utilizing Toray Paper as a Metal‐Free, High Surface Area Electrode for Photosystem I–Driven Mediated Electron Transfer

et al. 2023

View full text Add to dashboard Cite

One challenge in capitalizing on the affordability, sustainability, and accessibility of biohybrid solar energy conversion, including devices based on Photosystem I (PSI), is the identification of metal‐free electrode materials to replace the inorganic substrates commonly found in solar cell development. Herein, commercially available Toray carbon paper (CP) is investigated as a high surface area, carbon electrode for the development of photoactive bioelectrodes consisting of PSI and poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). Mediated anodic photocurrent is achieved at both PSI multilayer and PSI–polymer composite films on CP electrodes subjected to flame pretreatment. Film preparation is optimized by utilizing potential sweep voltammetry in place of potentiostatic conditions for polymerization. The optimized PSI–PEDOT:PSS films achieve a threefold increase in polymer growth under potential sweep conditions, quantified through net charge consumed during electropolymerization, resulting in a fourfold increase in photocurrent density (−53 vs −196 nA cm−2). The ability to prepare photoactive PSI‐polymer films on metal‐free CP electrodes opens the door to a rapidly scalable system for biohybrid energy production ultimately leading to more affordable, sustainable, and accessible energy.

show abstract

Improvement of the adhesion between polyaniline and commercial carbon paper by acid treatment and its application in supercapacitor electrodes

Cited by 10 publications

References 37 publications

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe₃O₄/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe₃O₄/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode

Polyaniline–Copper Composite: A Non-precious Metal Cathode Catalyst for Low-Temperature Fuel Cells

Utilizing Toray Paper as a Metal‐Free, High Surface Area Electrode for Photosystem I–Driven Mediated Electron Transfer

Contact Info

Product

Resources

About

Improvement of the adhesion between polyaniline and commercial carbon paper by acid treatment and its application in supercapacitor electrodes

Cited by 10 publications

References 37 publications

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe3O4/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe3O4/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode

Polyaniline–Copper Composite: A Non-precious Metal Cathode Catalyst for Low-Temperature Fuel Cells

Utilizing Toray Paper as a Metal‐Free, High Surface Area Electrode for Photosystem I–Driven Mediated Electron Transfer

Contact Info

Product

Resources

About

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe₃O₄/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode

Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe₃O₄/Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode