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Title: Nitrogen-doped graphene catalysts: High energy wet ball milling synthesis and characterizations of functional groups and particle size variation with time and speed

Nitrogen-doped graphene (N-G) catalyst emerges as one of the promising non-platinum group metal (non-PGM) catalysts with the advantages of low cost, high oxygen reduction reaction (ORR) activity, stability, and selectivity to replace expensive PGM catalysts in electrochemical systems. This research investigated nanoscale high energy wet (NHEW) ball milling for the synthesis of N-G catalysts to make conventional problems such as sintering or localized overheating issues negligible. The successful synthesis of N-G catalysts with comparable catalytic performance to 10 wt% Pt/C by using this method has been published. This paper focuses on understanding the effect of grinding speed and grinding time on the particle size and chemical state of N-G catalysts through the physical and chemical characterization. The research result shows that (1) the final particle size, nitrogen doping percentage, and nitrogen bonding composition of synthesized N-G catalysts are predictable and controllable by adjusting the grinding time, the grinding speed, and other relative experimental parameters; (2) the final particle size of N-G catalysts could be estimated from the derived relation between the cracking energy density and the particle size of ground material in the NHEW ball milling process with specified experimental parameters; and (3) the chemical composition of N-G catalysts synthesizedmore » by NHEW ball milling is controllable by adjusting the grinding time and grinding speed.« less
Authors:
ORCiD logo [1] ;  [1] ;  [2] ;  [1]
  1. New Jersey Inst. of Technology, Newark, NJ (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-200079-2018-JAAM
Journal ID: ISSN 0363-907X
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
International Journal of Energy Research
Additional Journal Information:
Journal Volume: 41; Journal Issue: 15; Journal ID: ISSN 0363-907X
Publisher:
Wiley
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY
OSTI Identifier:
1425062

Zhuang, Shiqiang, Nunna, Bharath Babu, Boscoboinik, Jorge Anibal, and Lee, Eon Soo. Nitrogen-doped graphene catalysts: High energy wet ball milling synthesis and characterizations of functional groups and particle size variation with time and speed. United States: N. p., Web. doi:10.1002/er.3821.
Zhuang, Shiqiang, Nunna, Bharath Babu, Boscoboinik, Jorge Anibal, & Lee, Eon Soo. Nitrogen-doped graphene catalysts: High energy wet ball milling synthesis and characterizations of functional groups and particle size variation with time and speed. United States. doi:10.1002/er.3821.
Zhuang, Shiqiang, Nunna, Bharath Babu, Boscoboinik, Jorge Anibal, and Lee, Eon Soo. 2017. "Nitrogen-doped graphene catalysts: High energy wet ball milling synthesis and characterizations of functional groups and particle size variation with time and speed". United States. doi:10.1002/er.3821. https://www.osti.gov/servlets/purl/1425062.
@article{osti_1425062,
title = {Nitrogen-doped graphene catalysts: High energy wet ball milling synthesis and characterizations of functional groups and particle size variation with time and speed},
author = {Zhuang, Shiqiang and Nunna, Bharath Babu and Boscoboinik, Jorge Anibal and Lee, Eon Soo},
abstractNote = {Nitrogen-doped graphene (N-G) catalyst emerges as one of the promising non-platinum group metal (non-PGM) catalysts with the advantages of low cost, high oxygen reduction reaction (ORR) activity, stability, and selectivity to replace expensive PGM catalysts in electrochemical systems. This research investigated nanoscale high energy wet (NHEW) ball milling for the synthesis of N-G catalysts to make conventional problems such as sintering or localized overheating issues negligible. The successful synthesis of N-G catalysts with comparable catalytic performance to 10 wt% Pt/C by using this method has been published. This paper focuses on understanding the effect of grinding speed and grinding time on the particle size and chemical state of N-G catalysts through the physical and chemical characterization. The research result shows that (1) the final particle size, nitrogen doping percentage, and nitrogen bonding composition of synthesized N-G catalysts are predictable and controllable by adjusting the grinding time, the grinding speed, and other relative experimental parameters; (2) the final particle size of N-G catalysts could be estimated from the derived relation between the cracking energy density and the particle size of ground material in the NHEW ball milling process with specified experimental parameters; and (3) the chemical composition of N-G catalysts synthesized by NHEW ball milling is controllable by adjusting the grinding time and grinding speed.},
doi = {10.1002/er.3821},
journal = {International Journal of Energy Research},
number = 15,
volume = 41,
place = {United States},
year = {2017},
month = {7}
}