Facile Synthesis of N, S-Doped Graphene from Sulfur Trioxide Pyridine Precursor for the Oxygen Reduction Reaction

سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 435

فایل این مقاله در 10 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

JR_IJHFC-4-3_006

تاریخ نمایه سازی: 17 تیر 1398

چکیده مقاله:

In the work presented here, nitrogen and sulfur co doped on porous graphene was synthesized using pyrolysis at 900°C for 2h and the hydrothermal technique at 180°C for 24h as metal-free electrocatalysts for oxygen reduction reaction (ORR) under alkaline conditions. All the materials have been characterized by Scanning Electron Microscopy (SEM) and X-ray photo-electron spectroscopy (XPS). Moreover for electrochemical evaluation of samples, Rotating Disk electrode (RDE) and Cyclic Voltammetry techniques (CV) were employed. The results showed that co-doping of S and N into porous graphene significantly enhance the ORR performance. Moreover, it is revealed that the catalyst prepared by the pyrolysis method shows outstanding catalytic activity for the ORR for which the number of electron in the pyrolysis method was calculated to be 4.1; whereas it became 2.6 in the hydrothermal approach. So regarding the obtained results, it can be stated that the samples prepared through the pyrolysis method exhibits excellent resistance towards methanol crossover effects, indicating their promising potential as ORR electrocatalysts for alkaline fuel cells.

نویسندگان

leila samiee

Energy Technology Research Division, Research Institute of Petroleum Industry (RIPI), West Blvd. Azadi Sport Complex, P.O. Box ۱۴۶۶۵-۱۳۷, Tehran, Iran

sedigheh sadeghhassani

Catalysis Research Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

Mohammad Reza Ganjali

Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Alimorad Rashidi

Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran, Iran

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • Zhang, H., Wang, Y., Wang, D., Li, Y., Liu, X., ...
  • Bag S., Mondal B., Das A. K., Raj C. R., ...
  • Alexeyeva, N., Shulga, E., Kisand, V., Kink, I., Tammeveski, K., ...
  • Wei, Q., Tong, X., Zhang, G., Qiao, J., Gong, Q., ...
  • Pourmand, S., Abdouss, M., Rashidi, A.M., Enhanced electrocatalytic activity due ...
  • Sun Y., Wu Q., Shi G., Graphene based new energy ...
  • L. Qu, Y. Liu, J.-B. Baek and L. Dai, Nitrogen-doped ...
  • Yu D., Wei L., Jiang W., Wang H., Sun B., ...
  • Yang S., Feng X., Wang X., Mullen K., Graphene-based carbon ...
  • Yang S., Zhi L., Tang K., Feng X., Maier J., ...
  • Liu Z.-W., Peng F., Wang H.-J., Yu H., Zheng W.-X., ...
  • Yadegari A., Samiee L., Tasharrofi S., Tajik S., Rashidi A.M., ...
  • Paraknowitsch J. P., Thomas A., Doping carbons beyond nitrogen: an ...
  • Panchokarla L.S., Subrahmanyam K.S., Saha S.K., Govindaraj A., Krishnamurthy H.R., ...
  • Chen P., Xiao T.-Y., Li H.-H., Yang J.-J., Wang Z., ...
  • Enhanced Electrochemical and Photocatalytic Activities , ACS Nano, 2011, 6: ...
  • Xin Y., Liu J.-g., Jie X., Liu W., Liu F., ...
  • Liang J., Jiao Y., Jaroniec M., Qiao S. Z., Sulfur ...
  • Su Y., Zhang Y., Zhuang X., Li S., Wu D., ...
  • Xu J., Dong G., Jin C., Huang M., Guan L., ...
  • Ai W., Luo Z., Jiang J., Zhu J., Du Z., ...
  • Silva R., Voiry D., Chhowalla M., Asefa T., Efficient metal-Free ...
  • Chen J., Wang X., Cui X., Yang G., Zheng W., ...
  • Pan F., Jin J., Fu X., Liu Q., Zhang J., ...
  • Yang W., Fellinger T.P., Antonietti M., Efficient metal-free oxygen reduction ...
  • Zhang Y., Ge J., Wang L., Wang D., Ding F., ...
  • Sheng Z. H., Shao L., Chen J. J., Bao W.J., ...
  • Zhou X., Yang Z., Nie H., Yao Z., Zhang L., ...
  • Li Y., Zhao Y., Cheng H., Hu Y., Shi G., ...
  • Han C., Wang J., Gong Y., Xu X., Li H., ...
  • Zhou X., Bai Z., Wu M., Qiao J., Chen Z., ...
  • Sadegh Hassani S., Ganjali M.R., Samiee L., Rashidi A. M., ...
  • Huang S.Y., Ganesan P., Popov B. N., Electrocatalytic activity and ...
  • Dhavale V. M., Unni S. M., Kagalwala H. N., Pillai ...
  • نمایش کامل مراجع