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Synthesizing nitrogen-doped activated carbon and probing its active sites for oxygen reduction reaction in microbial fuel cells.
ACS Appl Mater Interfaces. 2014 May 28; 6(10):7464-70.AA

Abstract

Cost-effective cathode catalysts are critical to the development of microbial fuel cell (MFC) technology. Herein, a synthesis route is presented to improve the nitrogen content and nitrogen functionality in the nitrogen-doped activated carbon (AC) as a low cost and efficient catalyst for oxygen reduction reaction (ORR). It was demonstrated that key factors for successful nitrogen doping were the proper pretreatment with acidic and alkaline solutions consecutively and the use of a solid-state nitrogen precursor. The AC pretreated with both acidic and alkaline solutions resulted in a nitrogen content of 8.65% (atom %) (in which 5.56% is pyridinic-N) on its surface, and exhibited an outstanding electrocatalytic activity for ORR in both electrochemical and MFC tests. A good agreement between pyridinic-N content and ORR activity was observed, indicating that pyridinic-N is the most active site for ORR in the nitrogen-doped AC. The pretreated nitrogen-doped AC catalysts resulted in a higher maximum power density than the untreated AC and the commercial Pt/C (10% Pt) catalysts. The exceptional performance associated with the advantages, such as simple and convenient preparation procedure, easily obtained raw materials, and low cost, makes the pretreated nitrogen-doped AC promising for the ongoing effort to scale up MFCs.

Authors+Show Affiliations

Department of Civil Engineering and Mechanics and §Department of Mechanical Engineering, University of Wisconsin-Milwaukee , Milwaukee, Wisconsin 53211, United States.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24720600

Citation

Zhang, Bo, et al. "Synthesizing Nitrogen-doped Activated Carbon and Probing Its Active Sites for Oxygen Reduction Reaction in Microbial Fuel Cells." ACS Applied Materials & Interfaces, vol. 6, no. 10, 2014, pp. 7464-70.
Zhang B, Wen Z, Ci S, et al. Synthesizing nitrogen-doped activated carbon and probing its active sites for oxygen reduction reaction in microbial fuel cells. ACS Appl Mater Interfaces. 2014;6(10):7464-70.
Zhang, B., Wen, Z., Ci, S., Mao, S., Chen, J., & He, Z. (2014). Synthesizing nitrogen-doped activated carbon and probing its active sites for oxygen reduction reaction in microbial fuel cells. ACS Applied Materials & Interfaces, 6(10), 7464-70. https://doi.org/10.1021/am5008547
Zhang B, et al. Synthesizing Nitrogen-doped Activated Carbon and Probing Its Active Sites for Oxygen Reduction Reaction in Microbial Fuel Cells. ACS Appl Mater Interfaces. 2014 May 28;6(10):7464-70. PubMed PMID: 24720600.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synthesizing nitrogen-doped activated carbon and probing its active sites for oxygen reduction reaction in microbial fuel cells. AU - Zhang,Bo, AU - Wen,Zhenhai, AU - Ci,Suqin, AU - Mao,Shun, AU - Chen,Junhong, AU - He,Zhen, Y1 - 2014/04/16/ PY - 2014/4/12/entrez PY - 2014/4/12/pubmed PY - 2015/10/16/medline SP - 7464 EP - 70 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 6 IS - 10 N2 - Cost-effective cathode catalysts are critical to the development of microbial fuel cell (MFC) technology. Herein, a synthesis route is presented to improve the nitrogen content and nitrogen functionality in the nitrogen-doped activated carbon (AC) as a low cost and efficient catalyst for oxygen reduction reaction (ORR). It was demonstrated that key factors for successful nitrogen doping were the proper pretreatment with acidic and alkaline solutions consecutively and the use of a solid-state nitrogen precursor. The AC pretreated with both acidic and alkaline solutions resulted in a nitrogen content of 8.65% (atom %) (in which 5.56% is pyridinic-N) on its surface, and exhibited an outstanding electrocatalytic activity for ORR in both electrochemical and MFC tests. A good agreement between pyridinic-N content and ORR activity was observed, indicating that pyridinic-N is the most active site for ORR in the nitrogen-doped AC. The pretreated nitrogen-doped AC catalysts resulted in a higher maximum power density than the untreated AC and the commercial Pt/C (10% Pt) catalysts. The exceptional performance associated with the advantages, such as simple and convenient preparation procedure, easily obtained raw materials, and low cost, makes the pretreated nitrogen-doped AC promising for the ongoing effort to scale up MFCs. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/24720600/Synthesizing_nitrogen_doped_activated_carbon_and_probing_its_active_sites_for_oxygen_reduction_reaction_in_microbial_fuel_cells_ L2 - https://doi.org/10.1021/am5008547 DB - PRIME DP - Unbound Medicine ER -