Fabrication and characterization of Ni modified TiO2 electrode as anode material for direct methanol fuel cell

Haskul, Mehmet; Ülgen, Asaf Tolga; Döner, Ali

doi:10.1016/j.ijhydene.2019.12.060

Cited by 25 publications

(18 citation statements)

References 87 publications

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“…Aqueous solutions, such as CH 3 COOH + HF [ 51 ] and H 3 PO 4 + NH 4 F [ 59 ], were also reported. It is possible to obtain nanotube arrays with a diameter ranging from 40 to 160 nm while applying potentials in the 10–60 V range for anodization times varying from 20 min to 24 h [ 29 , 49 , 59 , 60 ]. The high surface area provided a larger number of active sites for the photo and electrochemical processes.…”

Section: General Aspects Of Anodic Oxide Synthesis For Energy Applmentioning

confidence: 99%

“…Depending on the desired properties of the resulting material, surface modification steps are needed, such as the deposition of nanoparticles [ 25 , 29 , 55 , 81 ], additional layers [ 23 , 82 , 83 ], or even the functionalization of the oxide surface [ 51 , 70 ]. The approaches adopted will be described in the next sections, according to the material’s application and required properties.…”

Section: General Aspects Of Anodic Oxide Synthesis For Energy Applmentioning

confidence: 99%

“…The materials’ high cost is one of the main barriers to commercializing this technology [ 55 , 114 ]. One of the main strategies for reducing costs is to improve the electrolytes and electrodes by applying porous nanomaterials with corrosion-resistance, stability, and durability [ 29 , 84 ]. In this sense, nanostructured anodic oxides are potential candidates for components of the fuel cells.…”

Section: Electrochemical Devices For Energy Conversion: Fuel Cellsmentioning

confidence: 99%

“…Most of these studies evaluated the potential use of the anodic oxides in the fuel cell electrodes focusing more on the material’s synthesis than the application. In these studies, anodized TiO 2 -NTs are tested as supporting materials for the electrocatalyst in the electrodes for PEMFC, DMFC, and DFAFC applications [ 29 , 30 , 51 , 55 , 58 ]. The evaluation of anodic Y-doped ZrO 2 as the solid electrolyte for SOFC applications was also reported [ 47 ].…”

Section: Electrochemical Devices For Energy Conversion: Fuel Cellsmentioning

confidence: 99%

“…In these applications, TiO 2 -NT is also the widely explored anodic oxide, but in this case, the properties of interest are its chemical stability, low-cost, and high surface area, despite its low conductivity [ 27 , 28 ]. In fuel cells, this oxide is employed as support for the catalyst in both anodes [ 29 ] and cathodes [ 30 ] to increase the electrodes’ stability. In supercapacitors, the excellent adhesion between anodic oxide and metal is advantageous for the fabrication of electrodes without a binder agent, reducing the synthesis steps [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

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The Use of Anodic Oxides in Practical and Sustainable Devices for Energy Conversion and Storage

et al. 2021

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This review addresses the main contributions of anodic oxide films synthesized and designed to overcome the current limitations of practical applications in energy conversion and storage devices. We present some strategies adopted to improve the efficiency, stability, and overall performance of these sustainable technologies operating via photo, photoelectrochemical, and electrochemical processes. The facile and scalable synthesis with strict control of the properties combined with the low-cost, high surface area, chemical stability, and unidirectional orientation of these nanostructures make the anodized oxides attractive for these applications. Assuming different functionalities, TiO2-NT is the widely explored anodic oxide in dye-sensitized solar cells, PEC water-splitting systems, fuel cells, supercapacitors, and batteries. However, other nanostructured anodic films based on WO3, CuxO, ZnO, NiO, SnO, Fe2O3, ZrO2, Nb2O5, and Ta2O5 are also explored and act as the respective active layers in several devices. The use of AAO as a structural material to guide the synthesis is also reported. Although in the development stage, the proof-of-concept of these devices demonstrates the feasibility of using the anodic oxide as a component and opens up new perspectives for the industrial and commercial utilization of these technologies.

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Section: General Aspects Of Anodic Oxide Synthesis For Energy Applmentioning

confidence: 99%

Section: General Aspects Of Anodic Oxide Synthesis For Energy Applmentioning

confidence: 99%

Section: Electrochemical Devices For Energy Conversion: Fuel Cellsmentioning

confidence: 99%

Section: Electrochemical Devices For Energy Conversion: Fuel Cellsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Use of Anodic Oxides in Practical and Sustainable Devices for Energy Conversion and Storage

et al. 2021

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Fuel cells as an advanced alternative energy source for the residential sector applications in Malaysia

Zakaria

Kamarudin

Wahid

2020

Intl J of Energy Research

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The growth of the world's population has increased energy demand. Malaysia, as a developing country, also requires significant energy to drive economic development and address population demand. Malaysian conventional power generation system is highly dependent on natural gas, coal, and oil power systems that have had significant environmental impacts. This paper explores the energy status in Malaysia to highlight the advantages of fuel cells as an advanced alternative energy source. The discussion on energy status in Malaysia involves population situation, energy demand, energy sources, and energy policies. Then, the ability and type of fuel cells to provide this advanced alternative energy source in Malaysia are described. The prospects for introducing portable fuel cell devices and residential applications have been comprehensively described as the most relevant application for the residential sector to implement this technology in Malaysia. Highlights • A comprehensive review of fuel cell systems as a source of renewable energy for the residence sector in Malaysia is presented. • The introduction of fuel cell-based portable devices and residential applications are the most relevant applications for the residence sector in Malaysia. • The prospects for the introduction of fuel cells are discussed, including costs and maintenance, the plan and strategy, and the availability of a research center in Malaysia.

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The use of avocado seed self‐assembly monolayer films for the catalysis of methanol electrooxidation reaction

Şahin

2022

J Chinese Chemical Soc

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Catalysts are important equipment that limits the performance of direct methanol fuel cells (DMFC). With the use of appropriate electrocatalysts, the efficiency of DMFC can be increased. Although the platinum-based catalysts have high efficiency for this process high cost and its limited sources on the earth are the main drawbacks. On the other hand, platinum affectivity may be alternative material due to its high resistance against CO-poisoning on the electrode/solution interface. They have also a low cost. In this study, the extracts of avocado seed (AS) are prepared in ethanol solvent and their self-assembly monolayer (SAM) films were prepared on the copper specimens (Cu/AS-SAM). The AS-SAM film modified catalyst was used as anode material for electrooxidation of methanol in an alkaline solution. To increase catalytic efficiency, the surface of Cu/AS-SAM was modified by electrodeposition of Ni. The surfaces of the bare copper, the AS-SAM film, and the Ni-modified were described by SEM, AFM, and EDX-mapping measurements. Their electrocatalytic activity and stability were evaluated with 1.0 M methanol containing alkaline solution by cyclic voltammetry (CV), Tafel curves and chronoamperometry (CA) tests. The results showed that a durable and homogeneous AS-SAM film forms on the copper surface from the extracts of AS in ethanol solvent. The AS-SAM film is electroactive for the methanol electrooxidation reaction. Moreover, modification of the film by depositing with Ni enhances its activity. The AS, agriculture waste can be utilized for fabricating anode materials for methanol electrooxidation reactions.

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Fabrication and characterization of Ni modified TiO2 electrode as anode material for direct methanol fuel cell

Cited by 25 publications

References 87 publications

The Use of Anodic Oxides in Practical and Sustainable Devices for Energy Conversion and Storage

The Use of Anodic Oxides in Practical and Sustainable Devices for Energy Conversion and Storage

Fuel cells as an advanced alternative energy source for the residential sector applications in Malaysia

The use of avocado seed self‐assembly monolayer films for the catalysis of methanol electrooxidation reaction

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