Electrophoretic deposition of polypyrrole/Vulcan XC-72 corrosion protection coatings on SS-304 bipolar plates by asymmetric alternating current for PEM fuel cells

Pech-Rodríguez, W. J.; González-Quijano, D.; Vargas‐Gutiérrez, G.; Rodríguez-Varela, F.J.

doi:10.1016/j.ijhydene.2014.03.209

Cited by 24 publications

(7 citation statements)

References 26 publications

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“…Kajian menggunakan EPD ini adalah lebih selamat dan mudah untuk digunakan jika dibandingkan dengan kaedah salutan lain seperti pemendapan wap fizikal, pemendapan wap kimia dan penyemburan (Feng et al 2013;García & Smit 2006;Pech-Rodríguez et al 2014). Proses EPD menghasilkan molekul yang melarut dalam larutan akueus atau organik yang dipindahkan ke elektrod apabila dialirkan arus elektrik (Antonelli et al 2013;Garcia et al 2006;Pech et al 2014;Peter & Sanjay 2015;Raddaha et al 2014). Bagi mencapai deposit struktur zarah elektroforetik yang seragam mengikut ia bergantung kepada jumlah kepekatan larutan, pH dan kekonduksian gam Arab.…”

Section: Pengenalanunclassified

Kesan Pemendapan Elektroforesis Gam Arab terhadap Halaju Kakisan pada Aluminium 5052

Arwati

Majlan²,

Daud³

et al. 2019

JSM

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Plat dwikutub adalah salah satu komponen utama sel fuel membran pertukaran proton (PEMFC). Aloi aluminium (Al5052) merupakan salah satu logam yang digunakan sebagai plat dwikutub kerana mempunyai kekonduksian yang tinggi dan ringan. Namun, sistem PEMFC yang berasid (pH3-6) adalah mudah untuk bahan Al5052 mengalami kakisan sehingga dapat mengurangkan prestasi PEMFC. Oleh itu, bagi mengurangkan halaju kakisan yang berlaku, kajian ini menggunakan perencat hijau gam Arab dengan kaedah pemendapan elektroforesis (EPD). Kesan kakisan plat Al5052 bersalut 0.5 gL-1 gam Arab di dalam larutan sulfurik asid diuji menggunakan kaedah elektrokimia dan ujian morfologi. Hasil ujian morfologi permukaan Al5052 yang bersalut gam Arab terlihat lebih halus dan homogen berbanding permukaan yang tidak disalut serta hasil keratan rentas ketebalan salutan adalah antara 7.5 μm sehingga 8.8 μm. Kesan peningkatan suhu (30ºC sehingga 90ºC) terhadap nilai rintangan hubungan antara muka (ICR) pada Al5052 yang tidak bersalut akan menurun daripada 11.8552 sehinggs 9.9042 mΩ cm 2 manakala yang bersalutkan gam Arab mempunyai nilai daripada 13.3497sehingga 11.812 mΩ cm 2. Keputusan menunjukkan bahawa gam Arab dapat memberikan perlindungan terhadap permukaan logam yang apabila pengujian menggunakan kaedah polarisasi linear tafel dalam larutan 0.5 M H 2 SO 4 (pH4) menunjukkan nilai ketumpatan arus kakisan (I corr) semakin menurun daripada 0.00264 kepada 0.00012 μA cm-2. Selain itu, halaju kakisan turut menurun daripada 3.06 × 10-5 mpy kepada 1.61 × 10-6 mpy setelah disalut gam Arab. Kesimpulannya, gam Arab dan kaedah salutan EPD boleh digunakan bagi mengurangkan halaju kakisan pada plat Al5052, supaya jangka hayat bahan ini lebih panjang dan boleh mencapai piawai yang ditetapkan oleh DOE untuk plat dwikutub.

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Section: Pengenalanunclassified

Kesan Pemendapan Elektroforesis Gam Arab terhadap Halaju Kakisan pada Aluminium 5052

Arwati

Majlan²,

Daud³

et al. 2019

JSM

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“…The most used carbon modification is the acid chemical functionalization (Guha, Lu, Zawodzinski, & Schiraldi, 2007;W. J. Pech-Rodríguez, González-Quijano, Vargas-Gutiérrez, & Rodríguez-Varela, 2014).…”

Section: Introductionmentioning

confidence: 99%

Cost-effective functionalization of Vulcan XC-72 by using the intermittent microwave heating process as nanocatalyst support for ethanol electrooxidation in acid media

Pech-Rodríguez

Rodríguez-Varela²,

Rocha–Rangel³

et al. 2021

RMIQ

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“…Pech‐Rodriquez et al. investigated the SS‐304 bipolar plates by asymmetric alternating current for their study. Wang et al.…”

Section: Introductionmentioning

confidence: 99%

Techno‐economic Analysis of a More Efficient Hydrogen Generation System Prototype: A Case Study of PEM Electrolyzer with Cr‐C Coated SS304 Bipolar Plates

2019

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This study presents a more efficient and innovative prototype of a hydrogen generation system using proton exchange membrane (PEM) electrolyzer. The aim of this study is to generate hydrogen gas energy that conducts the chemical reaction by electrolytic movements as well as to design a system that generates energy with H2 through new technology. The Cr‐C coated SS304 bipolar plates were used in the electrolysis cells and the septic mixture (urea, ammonia, methyl alcohol) was used in the electrolyzer as a chemical solution to make the hydrogen production more efficient and cost effective. The super strong magnets were also mounted on the outer surface of the electrolysis cells to improve the performance and efficiency. The performance of the electrolyzer was determined by operating the current and voltage parameters. The results were collected through experiments and the optimization of the different parameters. In this prototype study, the production of hydrogen gas in the system (1 MW) through the presented system was found to be as 6 m3 h−1 and the simple payback period (SPP) was calculated as 2.32 y. These results indicate that this system can produce hydrogen more efficiently and economically.

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Electrophoretic deposition of polypyrrole/Vulcan XC-72 corrosion protection coatings on SS-304 bipolar plates by asymmetric alternating current for PEM fuel cells

Cited by 24 publications

References 26 publications

Kesan Pemendapan Elektroforesis Gam Arab terhadap Halaju Kakisan pada Aluminium 5052

Kesan Pemendapan Elektroforesis Gam Arab terhadap Halaju Kakisan pada Aluminium 5052

Cost-effective functionalization of Vulcan XC-72 by using the intermittent microwave heating process as nanocatalyst support for ethanol electrooxidation in acid media

Techno‐economic Analysis of a More Efficient Hydrogen Generation System Prototype: A Case Study of PEM Electrolyzer with Cr‐C Coated SS304 Bipolar Plates

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