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Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites
นักวิจัย : Yang, Huanping , Jiang, Jian , Zhou, Weiwei , Lai, Linfei , Xi, Lifei , Lam, Yeng Ming , Shen, Zexiang , Khezri, Bahareh , Yu, Ting
คำค้น : DRNTU::Engineering::Materials::Nanostructured materials.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : Yang, H., Jiang, J., Zhou, W., Lai, L., Xi, L., Lam, Y. M., et al. (2011). Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites. Nanoscale research letters, 6, 531. , http://hdl.handle.net/10220/8169 , http://dx.doi.org/10.1186/1556-276X-6-531 , 166351
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Nanoscale research letters
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

MnO2 supported on graphene oxide (GO) made from different graphite materials has been synthesized and further investigated as electrode materials for supercapacitors. The structure and morphology of MnO2-GO nanocomposites are characterized by X-ray diffraction, X-ray photoemission spectroscopy, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and Nitrogen adsorption-desorption. As demonstrated, the GO fabricated from commercial expanded graphite (denoted as GO(1)) possesses more functional groups and larger interplane gap compared to the GO from commercial graphite powder (denoted as GO(2)). The surface area and functionalities of GO have significant effects on the morphology and electrochemical activity of MnO2, which lead to the fact that the loading amount of MnO2 on GO(1) is much higher than that on GO(2). Elemental analysis performed via inductively coupled plasma optical emission spectroscopy confirmed higher amounts of MnO2 loading on GO(1). As the electrode of supercapacitor, MnO2-GO(1) nanocomposites show larger capacitance (307.7 F g-1) and better electrochemical activity than MnO2-GO(2) possibly due to the high loading, good uniformity, and homogeneous distribution of MnO2 on GO(1) support.

บรรณานุกรม :
Yang, Huanping , Jiang, Jian , Zhou, Weiwei , Lai, Linfei , Xi, Lifei , Lam, Yeng Ming , Shen, Zexiang , Khezri, Bahareh , Yu, Ting . (2554). Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yang, Huanping , Jiang, Jian , Zhou, Weiwei , Lai, Linfei , Xi, Lifei , Lam, Yeng Ming , Shen, Zexiang , Khezri, Bahareh , Yu, Ting . 2554. "Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yang, Huanping , Jiang, Jian , Zhou, Weiwei , Lai, Linfei , Xi, Lifei , Lam, Yeng Ming , Shen, Zexiang , Khezri, Bahareh , Yu, Ting . "Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Yang, Huanping , Jiang, Jian , Zhou, Weiwei , Lai, Linfei , Xi, Lifei , Lam, Yeng Ming , Shen, Zexiang , Khezri, Bahareh , Yu, Ting . Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.