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Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide
นักวิจัย : Chua, Chun Kiang , Ambrosi, Adriano , Pumera, Martin
คำค้น : DRNTU::Science::Chemistry
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Chua, C. K., Ambrosi, A., & Pumera, M. (2012). Graphene oxide reduction by standard industrial reducing agent: thiourea dioxide. Journal of Materials Chemistry, 22(22), 11054-11061. , http://hdl.handle.net/10220/11589 , http://dx.doi.org/10.1039/c2jm16054d
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of materials chemistry
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

The current fabrication methods of pristine graphene are not feasible for bulk production. The closest approach, which is through chemical reduction of graphene oxide to chemically reduced graphene oxide that resembles pristine graphene, has been widely adopted instead. Herein, we report a new methodology for the reduction of graphene oxide to chemically reduced graphene oxide using a common industrial reductant, thiourea dioxide. The final product has been fully characterized by X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Raman spectroscopy, electrochemical impedance spectroscopy (EIS), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and cyclic voltammetry. The microscopy techniques revealed reduced graphene of few-layered sheets. Based on the XPS analyses, a C/O ratio as high as 16.0 was achieved. The reduced graphene oxide product demonstrated a good electrochemical performance with a charge transfer resistance as low as 0.11 kΩ based on EIS measurements and a low overpotential for the oxidation of ascorbic acid. Since thiourea is a common industrial reductant, standard protocols are already in place for the waste produced from this methodology. As such, we foresee that this methodology holds the potential for industrial scale reduction of graphene oxide.

บรรณานุกรม :
Chua, Chun Kiang , Ambrosi, Adriano , Pumera, Martin . (2555). Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chua, Chun Kiang , Ambrosi, Adriano , Pumera, Martin . 2555. "Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chua, Chun Kiang , Ambrosi, Adriano , Pumera, Martin . "Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Chua, Chun Kiang , Ambrosi, Adriano , Pumera, Martin . Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.