Fabrication and characterization of alkaline leached CuZn/Cu electrode as anode material for direct methanol fuel cell

Döner, Ali; Solmaz, Ramazan; Kardaş, Gülfeza

doi:10.1016/j.energy.2015.06.058

Cited by 30 publications

(8 citation statements)

References 57 publications

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“…3b, the overpotential plots for all binary cathode are linear at negative potentials. This is indicating that the predominant mechanism of HER on these electrodes appears to be a discharge of water (Volmer reaction) followed by electrochemical desorption step (Heyrovsky) [23]. Table 1 shows that the electrochemical data was obtained from Fig.…”

Section: Resultsmentioning

confidence: 91%

“…Electrodeposition is very convenient for controlling cost, deposit morphology and various parameters such as electrolyte composition, temperature and time for obtaining a porous copper surface [15,16]. The binary and ternary alloys prepared by leaching of zinc are used as highly effective electrocatalysts for HER [17][18][19][20][21][22][23]. The leaching of zinc causes a loss of mass as well as a highly porous surface to use in alkaline water electrolysis.…”

Section: Introductionmentioning

confidence: 99%

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Hidrojen Gelişim Reaksiyonu İçin Bakır-Çinko İkili Kaplama

Telli¹

2018

Sakarya University Journal of Science

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The different coatings with high hydrogen evolution reaction (HER) durability activity were prepared by electrodeposition. Iron, copper and zinc alloys were deposited on graphite electrode. The binary coating prepared on the graphite electrode. Zinc alloys were etched in alkaline solution to produce a porous and electrocatalytic surface suitable for use in the HER. The scanning electron microscopy (SEM) was used for surface characterization. Electrolysis was carried out in 1.0 M KOH solution by DC power supply. Cathodic current-potential curves, electrochemical impedance spectroscopy and cyclic voltammetry measurements were performed for chemical characterization. The experimental results show that the etching zinc alloys have compact and porous structures with good physical stability in comparison with other deposit for HER.

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Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Hidrojen Gelişim Reaksiyonu İçin Bakır-Çinko İkili Kaplama

Telli¹

2018

Sakarya University Journal of Science

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“…The reason for that was claimed to be due to the presence of greater surface area, higher surface porosity and strong electronic interaction between Cu and Zn. [155] Yue and coworkers Reprodcued with permission from Elsevier [151] fabricated Cu trapped in CoO x cage on a carbon layer that has specific activity and mass activity of 150.41 mA cm −2 and 467.94 mA mg −1 , respectively, and which possesses the highest MOR activity so far reported for noble metal free catalyst. In-situ X-ray absorption spectroscopy (XAS) was used to understand the reaction mechanism as the CoO x cage can provide Co 4+ as an active site that can easily oxidize methanol, while Cu can act as a methanol adsorption center.…”

Section: Coppermentioning

confidence: 99%

A comprehensive and critical review on recent progress in anode catalyst for methanol oxidation reaction

2020

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The synthesis of anode electrocatalyst with high activity and durability for methanol oxidation reaction has been one of the main focuses of researchers in recent years. Several works are reviewed in this paper to summarize and compare the performance of electrocatalysts comprising of noble and non-noble metals. The effect of manipulating catalysts by introducing nanostructured morphology, metal alloys, support materials, acidic or basic electrolyte, and synthesis methods are also examined. The paper finally concludes with details of challenges that are generally faced in making direct methanol fuel cell (DMFC) a reliable source of energy for future prospects, and the approach to be taken to reduce the complexity in synthesizing new generations of anode electrocatalysts.

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“…Copper confined in a CoO x cage over a carbon layer possesses the highest activity due to the presence of Co 4+ , provided by the CoO x cage, which acts as an active site for facile methanol oxidation and copper help in methanol adsorption. [47][48][49][50]…”

Section: Effect Of Morphology On the Electrocatalytic Activitymentioning

confidence: 99%

“…Alloys of copper with zinc (Cu Zn/Cu), could also generate the MOR catalyst with a huge surface area, high porosity, and robust electronic interaction between the copper and zinc that contribute to an excellent oxidation current density. Copper confined in a CoO x cage over a carbon layer possesses the highest activity due to the presence of Co 4+ , provided by the CoO x cage, which acts as an active site for facile methanol oxidation and copper help in methanol adsorption 47‐50 …”

Section: Effect Of Morphology On the Electrocatalytic Activitymentioning

confidence: 99%

Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

2020

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The human craving for energy is continually mounting and becoming progressively difficult to Gratify. At present, the world's massive energy demands are chiefly encountered by nonrenewable and benign fossil fuels. However, the development of dynamic energy cradles for a gradually thriving world to lessen fossil fuel reserve depletion and environmental concerns are persistent issues for society at present. The discovery of copious nonconventional resources to fill the gap between energy petition and supply is the extreme obligation of the modern era. A new emergent, clean, and robust alternate of fossil fuels are the fuel cells. Among the different types of fuel cells, direct methanol fuel cells are an outstanding option for light-duty vehicles and portable devices. A critical tactic for striving and sustainable energy sources is the production of highly proficient, economical, and green catalysts for energy storage and conversion devices. Up till now a broad range of research work is available to use Pt and modify Ptbased electrocatalysts to augment the CH 3 OH oxidation process. Platinum-based nanocubes, nanorods, nanoflower, hybrids of Pt with metal-oxides such as Fe 2 O 3 , TiO 2 , SnO 2 , MnO, Cu 2 O, ZnO, and with conducting polymers are extensively utilized in both acidic and basic media. Moreover, Pd-based materials, transition metal-based materials as well as MOF and MOF-derived materials are also the point of interest for researchers nowadays. However, the problem associated with their practical applications is that they can be effectively employed in basic media due to comparative less stability in acidic medium. This review article will deliver a broad vision of the current progress of the MOR process concerning noble metals, transition metals, and MOF-based materials.

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Fabrication and characterization of alkaline leached CuZn/Cu electrode as anode material for direct methanol fuel cell

Cited by 30 publications

References 57 publications

Hidrojen Gelişim Reaksiyonu İçin Bakır-Çinko İkili Kaplama

Hidrojen Gelişim Reaksiyonu İçin Bakır-Çinko İkili Kaplama

A comprehensive and critical review on recent progress in anode catalyst for methanol oxidation reaction

Recent progress in development of efficient electrocatalyst for methanol oxidation reaction in direct methanol fuel cell

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