{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T05:24:56Z","timestamp":1778736296417,"version":"3.51.4"},"reference-count":44,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2017,10,21]],"date-time":"2017-10-21T00:00:00Z","timestamp":1508544000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Catalytic substrate, which is devoid of expensive noble metals and enzymes for hydrogen peroxide (H2O2), reduction reactions can be obtained via nitrogen doping of graphite. Here, we report a facile fabrication method for obtaining such nitrogen doped graphitized carbon using polyacrylonitrile (PAN) mats and its use in H2O2 sensing. A high degree of graphitization was obtained with a mechanical treatment of the PAN fibers embedded with carbon nanotubes (CNT) prior to the pyrolysis step. The electrochemical testing showed a limit of detection (LOD) 0.609 \u00b5M and sensitivity of 2.54 \u00b5A cm\u22122 mM\u22121. The promising sensing performance of the developed carbon electrodes can be attributed to the presence of high content of pyridinic and graphitic nitrogens in the pyrolytic carbons, as confirmed by X-ray photoelectron spectroscopy. The reported results suggest that, despite their simple fabrication, the hydrogen peroxide sensors developed from pyrolytic carbon nanofibers are comparable with their sophisticated nitrogen-doped graphene counterparts.<\/jats:p>","DOI":"10.3390\/s17102407","type":"journal-article","created":{"date-parts":[[2017,10,23]],"date-time":"2017-10-23T04:32:19Z","timestamp":1508733139000},"page":"2407","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Nitrogen-Rich Polyacrylonitrile-Based Graphitic Carbons for Hydrogen Peroxide Sensing"],"prefix":"10.3390","volume":"17","author":[{"given":"Brandon","family":"Pollack","sequence":"first","affiliation":[{"name":"Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sunshine","family":"Holmberg","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3846-3556","authenticated-orcid":false,"given":"Derosh","family":"George","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ich","family":"Tran","sequence":"additional","affiliation":[{"name":"Irvine Materials Research Institute (IMRI), University of California, Irvine, CA 92697, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marc","family":"Madou","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maziar","family":"Ghazinejad","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA"},{"name":"Department of Mechanical Engineering, California State University, Fresno, CA 93740, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,10,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/S0003-2670(00)01181-8","article-title":"Chemiluminescent flow sensor for H2O2 based on the decomposition of H2O2 catalyzed by cobalt(II)-ethanolamine complex immobilized on resin","volume":"426","author":"Hanaoka","year":"2001","journal-title":"Anal. 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