Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential
deposition technique for PEM fuel cell applications: physical and electrochemical
analysis on carbon paper support

Ahsen, Ali Şems; Ozdemir, Oguz Kaan; ozturk, osman; HASIMOGLU, AYDIN; Karaaslan, Inci

doi:10.3906/kim-2101-50

Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support

Osman ÖZTÜRK, (Gebze Teknik Üniversitesi, Temel Bilimler Fakültesi, Fizik Bölümü, Kocaeli, Türkiye)

Aydın HAŞİMOĞLU, (Gebze Teknik Üniversitesi, Nanoteknoloji Araştırma Merkezi, Kocaeli, Türkiye)

Oğuz Kaan ÖZDEMİR, (Yıldız Teknik Üniversitesi, Kimya-Metalurji Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümü, İstanbul, Türkiye)

İnci KARAASLAN, (Gebze Teknik Üniversitesi, Nanoteknoloji Araştırma Merkezi, Kocaeli, Türkiye)

Ali Şems AHSEN (Gebze Teknik Üniversitesi, Temel Bilimler Fakültesi, Fizik Bölümü, Kocaeli, Türkiye)

Turkish Journal of Chemistry

1 0

Yıl: 2021 Cilt: 45 Sayı: 5 Sayfa Aralığı: 1336 - 1352 Metin Dili: İngilizce DOI: 10.3906/kim-2101-50 İndeks Tarihi: 30-06-2022

Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support

Öz:

A series of thin Pt-Co films with different metal ratios were deposited by using the sequential cosputtering directly on a commercial hydrophobic carbon paper substrate at room temperature and in ultra-high vacuum (UHV) conditions. Their electrocatalytic properties toward the oxygen reduction reaction were investigated in 0.5 M $H_2 SO_4$ solution by means of cyclic voltammetry (CV) and linear sweep voltammetry (LSV) on rotating disc electrode (RDE). The results showed that Pt particles, deposited by dc-magnetron gun, surround the large Co-clusters deposited by rf-magnetron gun. In addition, the increase of Co content led to an increase in the electrochemical active surface area $(EASA) from 23.75 m_2 /gPt to 47.54 m_2 /gPt for pure Pt and Pt:Co (1:3),$ respectively, which corresponded the improvement of the utilization of Pt by a factor of 1.91. This improvement indicated that the sequential magnetron cosputtering was one of the essential technique to deposit homogeneous metal clusters with desirable size on the gas diffusion layer by adjustment plasma parameters.

Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	ozturk o, HASIMOGLU A, Ozdemir O, Karaaslan I, Ahsen A (2021). Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. , 1336 - 1352. 10.3906/kim-2101-50
Chicago	ozturk osman,HASIMOGLU AYDIN,Ozdemir Oguz Kaan,Karaaslan Inci,Ahsen Ali Şems Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. (2021): 1336 - 1352. 10.3906/kim-2101-50
MLA	ozturk osman,HASIMOGLU AYDIN,Ozdemir Oguz Kaan,Karaaslan Inci,Ahsen Ali Şems Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. , 2021, ss.1336 - 1352. 10.3906/kim-2101-50
AMA	ozturk o,HASIMOGLU A,Ozdemir O,Karaaslan I,Ahsen A Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. . 2021; 1336 - 1352. 10.3906/kim-2101-50
Vancouver	ozturk o,HASIMOGLU A,Ozdemir O,Karaaslan I,Ahsen A Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. . 2021; 1336 - 1352. 10.3906/kim-2101-50
IEEE	ozturk o,HASIMOGLU A,Ozdemir O,Karaaslan I,Ahsen A "Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support." , ss.1336 - 1352, 2021. 10.3906/kim-2101-50
ISNAD	ozturk, osman vd. "Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support". (2021), 1336-1352. https://doi.org/10.3906/kim-2101-50

APA	ozturk o, HASIMOGLU A, Ozdemir O, Karaaslan I, Ahsen A (2021). Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. Turkish Journal of Chemistry, 45(5), 1336 - 1352. 10.3906/kim-2101-50
Chicago	ozturk osman,HASIMOGLU AYDIN,Ozdemir Oguz Kaan,Karaaslan Inci,Ahsen Ali Şems Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. Turkish Journal of Chemistry 45, no.5 (2021): 1336 - 1352. 10.3906/kim-2101-50
MLA	ozturk osman,HASIMOGLU AYDIN,Ozdemir Oguz Kaan,Karaaslan Inci,Ahsen Ali Şems Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. Turkish Journal of Chemistry, vol.45, no.5, 2021, ss.1336 - 1352. 10.3906/kim-2101-50
AMA	ozturk o,HASIMOGLU A,Ozdemir O,Karaaslan I,Ahsen A Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. Turkish Journal of Chemistry. 2021; 45(5): 1336 - 1352. 10.3906/kim-2101-50
Vancouver	ozturk o,HASIMOGLU A,Ozdemir O,Karaaslan I,Ahsen A Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support. Turkish Journal of Chemistry. 2021; 45(5): 1336 - 1352. 10.3906/kim-2101-50
IEEE	ozturk o,HASIMOGLU A,Ozdemir O,Karaaslan I,Ahsen A "Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support." Turkish Journal of Chemistry, 45, ss.1336 - 1352, 2021. 10.3906/kim-2101-50
ISNAD	ozturk, osman vd. "Low loaded Pt-Co catalyst surfaces optimized by magnetron sputtering sequential deposition technique for PEM fuel cell applications: physical and electrochemical analysis on carbon paper support". Turkish Journal of Chemistry 45/5 (2021), 1336-1352. https://doi.org/10.3906/kim-2101-50