Environment friendly hydrothermal synthesis of carbon-Co3O4 nanorods composite as an efficient catalyst for oxygen evolution reaction

Amol R.Jadhav; Harshad A.Bandal; Ashif H.Tamboli; Hern Kim

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Environment friendly hydrothermal synthesis of carbon-Co3O4 nanorods composite as an efficient catalyst for oxygen evolution reaction

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The design of cost-effective,highly active catalysts for hydrogen energy production is a vital element in the societal pursuit of sustainable energy.Water electrolysis is one of the most convenient processes to produce high purity hydrogen.Cobalt-based catalysts are well-known electrocatalysts for oxygen evolution reaction (OER).In this article,all these merits indicate that the present cobalt nanocomposite is a promising electrocatalyst for OER.C-Co3O4-nanorods catalyst with nanorod structure was synthesized by hydrothermal treatment of CoCl26H2O/dextrose/urea mixture at 180 ℃ for 18 h and then calcined at 400 ℃ for 3.5 h.The role of dextrose percentage in solution to achieve the uniform coating of carbon on the surface of Co3O4-nanorods has been demonstrated.The prepared materials were characterized by X-ray diffraction (XRD),X-ray photoelectron spectrum (XPS),field emission scanning electron microscopy (FE-SEM),high-resolution transmission electron microscopy (HR-TEM),and Brunauer-Emmett-Teller instrument (BET).Due to its unique morphology,the C-Co3O4-nanorods catalyst exhibited better activity than Co3O4-microplates catalyst for OER in 1 M KOH aqueous solution.The results showed a highly efficient,scalable,and low-cost method for developing highly active and stable OER electrocatalysts in alkaline solution.

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《天然气化学（英文版）》 |2017年第4期|695-702|共8页
作者
Amol R.Jadhav; Harshad A.Bandal; Ashif H.Tamboli; Hern Kim;
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Department of Energy Science and Technology, Smart Living Innovation Technology Center, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea;

Department of Energy Science and Technology, Smart Living Innovation Technology Center, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea;

Department of Energy Science and Technology, Smart Living Innovation Technology Center, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea;

Department of Energy Science and Technology, Smart Living Innovation Technology Center, Myongji University, Yongin, Gyeonggi-do 17058, Republic of Korea;

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Environment friendly hydrothermal synthesis of carbon-Co3O4 nanorods composite as an efficient catalyst for oxygen evolution reaction

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