PMID- 25683019 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20151015 LR - 20150716 IS - 1613-6829 (Electronic) IS - 1613-6810 (Linking) VI - 11 IP - 27 DP - 2015 Jul 15 TI - Microwave Enabled One-Pot, One-Step Fabrication and Nitrogen Doping of Holey Graphene Oxide for Catalytic Applications. PG - 3358-68 LID - 10.1002/smll.201403402 [doi] AB - The unique properties of a holey graphene sheet, referred to as a graphene sheet with nanoholes in its basal plane, lead to wide range of applications that cannot be achieved by its nonporous counterpart. However, the large-scale solution-based production requires graphene oxide (GO) or reduced GO (rGO) as the starting materials, which take hours to days for fabrication. Here, an unexpected discovery that GO with or without holes can be controllably, directly, and rapidly (tens of seconds) fabricated from graphite powder via a one-step-one-pot microwave assisted reaction with a production yield of 120 wt% of graphite is reported. Furthermore, a fast and low temperature approach is developed for simultaneous nitrogen (N) doping and reduction of GO sheets. The N-doped holey rGO sheets demonstrate remarkable electrocatalytic capabilities for the electrochemical oxygen reduction reaction. The existence of the nanoholes provides a "short cut" for efficient mass transport and dramatically increases edges and surface area, therefore, creates more catalytic centers. The capability of rapid fabrication and N-doping as well as reduction of holey GO can lead to development of an efficient catalyst that can replace previous coin metals for energy generation and storage, such as fuel cells and metal-air batteries. CI - (c) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Patel, Mehulkumar AU - Patel M AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Feng, Wenchun AU - Feng W AD - Department of Chemical Engineering, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA. FAU - Savaram, Keerthi AU - Savaram K AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Khoshi, M Reza AU - Khoshi MR AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Huang, Ruiming AU - Huang R AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Sun, Jing AU - Sun J AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Rabie, Emann AU - Rabie E AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Flach, Carol AU - Flach C AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Mendelsohn, Richard AU - Mendelsohn R AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. FAU - Garfunkel, Eric AU - Garfunkel E AD - Department of Chemistry and Chemical Biology, Rutgers University, 610 Taylor Rd, Piscataway, NJ, 08854, USA. FAU - He, Huixin AU - He H AD - Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA. LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20150212 PL - Germany TA - Small JT - Small (Weinheim an der Bergstrasse, Germany) JID - 101235338 OTO - NOTNLM OT - graphene oxide OT - heteroatom doping OT - holey graphene sheets OT - microwave irradiation OT - oxygen reduction reaction EDAT- 2015/02/17 06:00 MHDA- 2015/02/17 06:01 CRDT- 2015/02/17 06:00 PHST- 2014/11/14 00:00 [received] PHST- 2014/12/27 00:00 [revised] PHST- 2015/02/17 06:00 [entrez] PHST- 2015/02/17 06:00 [pubmed] PHST- 2015/02/17 06:01 [medline] AID - 10.1002/smll.201403402 [doi] PST - ppublish SO - Small. 2015 Jul 15;11(27):3358-68. doi: 10.1002/smll.201403402. Epub 2015 Feb 12.