Co3O4/Ni Köpük Nanokompozitlerinin Doğrudan Metanol Yakıt Hücresinde Elektrot Malzemesi Olarak Kullanımı
Bu çalışmada, nikel köpük üzerindeki Co3O4 nano-iğne dizileri (Co3O4/Ni köpük), basit tek-kap hidrotermal yöntemle sentezlenmiş ve ardından tek aşamalı ısıl işlem uygulanmıştır. Co3O4/Ni köpük nanokompozitlerinin yapısal ve morfolojojik analizleri; X-ışını kırınım spektroskopisi (XRD) ve alan emisyonlu taramalı elektron mikroskobu (FESEM) ile karakterize edilmiştir. Alkali çözeltide Co3O4/Ni köpük üzerinde metanolün elektrokimyasal oksidasyonu, dönüşümlü voltametri (CV) ve kronoamperometri (CA) teknikleri ile incelenmiştir. Düşük başlangıç potansiyeli (270 mV), yüksek akım yoğunluğu (67 mA cm-2) ve uzun elektro-oksidasyon kararlılığı (%86) ile Co3O4/Ni köpük mükemmel elektrokatalitik performans göstermiştir. Böylece, sentezlenen nanokompozitin doğrudan metanol yakıt hücreleri için yüksek performanslı platinsiz elektrokatalizörlere mükemmel bir aday olabileceği saptanmıştır.
Use of Co3O4/Ni Foam Nanocomposites as Electrode Material in Direct Methanol Fuel Cell
In this work, Co3O4 nanoneedle arrays on nickel foam (Co3O4/Ni foam) were directly synthesized by facile one step thermal treatment. The structural and morphological analysis of Co3O4/Ni foam nanocomposites were characterized by X-ray diffraction spectroscopy (XRD) and field emission scanning electron microscopy (FESEM). The electrochemical oxidation of methanol on Co3O4/Ni foam in alkaline solution was investigated by cyclic voltammetry (CV) and chronoamperometry (CA) techniques. The Co3O4/Ni foam showed excellent electrocatalytic performance with low onset potential (270 mV), high current density (67 mA cm-2) and long electro-oxidation stability (86%). Thus, it has been determined that the synthesized nanocomposite can be an excellent candidate for high performance platinum-free electrocatalysts directly for methanol fuel cells.
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- Dincer I, 2000. Renewable energy and sustainable development: A crucial review. Renewable and Sustainable Energy Reviews, 4: 157-175.
- Du X, Huang C, Zhang X,. 2019. Co3O4 arrays with tailored morphology as robust water oxidation and urea splitting catalyst. Journal of Alloys and Compounds, 809: 151821.
- Gong L, Yang Z, Li K, Xing W, Liu C, Ge J, 2018. Recent development of methanol electrooxidation catalysts for direct methanol fuel cell. Journal of Energy Chemistry, 27: 1618-1628.
- Hassen D, El-Safty SA, Tsuchiya K, Chatterjee A, Elmarakbi A, Shenashen MA, Sakai M, 2016. Longitudinal Hierarchy Co3O4 Mesocrystals with High-dense Exposure Facets and Anisotropic Interfaces for Direct-Ethanol Fuel Cells. Scientific Reports, 6:24330.
- Hong WT, Risch M, Stoerzinger KA, Grimaud A, Suntivich J, Shao-Horn Y, 2015. Toward the rational design of non-precious transition metal oxides for oxygen electrocatalysis. Energy and Environmental Science,8: 1404-1427.
- Hoseini SJ, Bahrami M, Samadi Fard Z, Fatemeh Hashemi Fard S, Roushani, M, Agahi BH, Sarmoor SS, 2018. Designing of some platinum or palladium-based nanoalloys as effective electrocatalysts for methanol oxidation reaction. International Journal of Hydrogen Energy, 43: 15095-15111.
- Jin L, Li X, Ming H, Wang H, Jia Z, Fu Y, Zheng J, 2014. Hydrothermal synthesis of Co3O4 with different morphologies towards efficient Li-ion storage. RSC Advances, 4: 6083-6089.
- Kamarudin SK, Achmad F, Daud WRW, 2009. Overview on the application of direct methanol fuel cell (DMFC) for portable electronic devices. International Journal of Hydrogen Energy, 34: 6902-6916.
- Kamyabi M, Martínez-Hincapié R, Feliu J, Herrero E, 2019. Effects of the Interfacial Structure on the Methanol Oxidation on Platinum Single Crystal Electrodes. Surfaces, 2(1): 177-192.
- Li Y, Li FM, Meng XY, Li, SN, Zeng JH, Chen Y, 2018. Ultrathin Co3O4 Nanomeshes for the Oxygen Evolution Reaction. ACS Catalysis, 8(3): 1913–1920.
- Liu Y, Teng H, Hou H, You T, 2009. Nonenzymatic glucose sensor based on renewable electrospun Ni nanoparticle-loaded carbon nanofiber paste electrode. Biosens. Bioelectron., 24;3329-3334.
- Lv CQ, Liu C, Wang GC, 2014. A DFT study of methanol oxidation on Co3O4. Catalysis Communications, 45:83-90.
- Palmas S, Ferrara F, Vacca A, Mascia M, Polcaro AM, 2007. Behavior of cobalt oxide electrodes during oxidative processes in alkaline medium. Electrochimica Acta, 53: 400-426.
- Qiao Y, Li, CM, 2011. Nanostructured catalysts in fuel cells. Journal of Materials Chemistry, 21: 4027-4036.
- Rajeshkhanna G, Umeshbabu E, Ranga Rao G, 2017. Charge storage, electrocatalytic and sensing activities of nest-like nanostructured Co3O4. Journal of Colloid and Interface Science, 487:20-30.
- Ramli ZAC, Kamarudin SK, 2018. Platinum-Based Catalysts on Various Carbon Supports and Conducting Polymers for Direct Methanol Fuel Cell Applications: a Review. Nanoscale Research Letters, 13: 410.
- Salavati-Niasari M, Mir N, Davar F, 2009. Synthesis and characterization of Co3O4 nanorods by thermal decomposition of cobalt oxalate. Journal of Physics and Chemistry of Solids, 70: 847-852.
- Shinde VR, Mahadik SB, Gujar TP, Lokhande CD, 2006. Supercapacitive cobalt oxide (Co3O4) thin films by spray pyrolysis. Applied Surface Science, 252: 7487-7492.
- Uddin MK, Baig U, 2019. Synthesis of Co3O4 nanoparticles and their performance towards methyl orange dye removal: Characterisation, adsorption and response surface methodology. Journal of Cleaner Production, 211: 1141-1153.
- Urhan BK, Demir Ü, 2019. Electrochemical fabrication of Ni or Ni(OH)2@Ni nanoparticle-decorated reduced graphene oxide for supercapacitor applications. Electrochimica Acta, 302: 109-118.
- Vennela AB, Mangalaraj D, Muthukumarasamy N, Agilan S, Hemalatha KV, 2019. Structural and optical properties of Co3O4 nanoparticles prepared by sol-gel technique for photocatalytic application. International Journal of Electrochemical Science, 14: 3535 – 3552.
- Waszczuk P, Kim HS, Tong YY, Wieckowski A, Solla-Gullón J, Montiel V, Aldaz A, 2001. Methanol electrooxidation on platinum/ruthenium nanoparticle catalysts. Journal of Catalysis, Volume 203, 1-6.
- Yetim NK, 2021. Hydrothermal synthesis of Co3O4 with different morphology: Investigation of magnetic and electrochemical properties. Journal of Molecular Structure, 1226: 129414.
- Yuan Z, Zhao J, Meng F, Qin W, Chen Y, Yang M, Zhao Y, 2019. Sandwich-like composites of double-layer Co3O4 and reduced graphene oxide and their sensing properties to volatile organic compounds. Journal of Alloys and Compounds, 793: 24-30.
- Yuda A, Ashok A, Kumar A, 2020. A comprehensive and critical review on recent progress in anode catalyst for methanol oxidation reaction. Catalysis Reviews - Science and Engineering, https://doi.org/10.1080/01614940.2020.1802811.
- Zhang X, Zhong H, Xu L, Wang S, Chi H, Pan Q, Zhang G, 2018. Fabrication of Co3O4/PEI-GO composites for gas-sensing applications at room temperature. Materials Research Bulletin, 102: 108-115.