Investigation of hydrogen production from boron compounds for pem fuel cells

Murat Ay, Adnan Midilli*, Ibrahim Dincer

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

22 Atıf (Scopus)

Özet

This paper presents a comprehensive study of hydrogen production from sodium borohydride (NaBH4), which is synthesized from sodium tetraborate (Na2B4O7) decomposition, for proton exchange membrane (PEM) fuel cells. For this purpose, Na2B4O7 decomposition reaction at 450-500 °C under hydrogen atmosphere and NaBH4 decomposition reaction at 25-40 °C under atmospheric pressure are selected as a common temperature range in practice, and the inlet molar quantities of Na2B4O7 are chosen from 1 to 6 mol with 0.5 mol interval as well. In order to form NaBH4 solution with 7.5 wt.% NaBH4, 1 wt.% NaOH, 91.5 wt.% H2O, the molar quantities of NaBH4 are determined. For a PEM fuel cell operation, the required hydrogen production rates are estimated depending on 60, 65, 70 and 75 g of catalyst used in the NaBH4 solution at 25, 32.5 and 40 °C, respectively. It is concluded that the highest rate of hydrogen production per unit area from NaBH4 solution at 40 °C is found to be 3.834 × 10-5 g H2 s-1 cm-2 for 75 g catalyst. Utilizing 80% of this hydrogen production, the maximum amounts of power generation from a PEM fuel cell per unit area at 80 °C under 5 atm are estimated as 1.121 W cm-2 for 0.016 cm by utilizing hydrogen from 75 g catalyst assisted NaBH4 solution at 40 °C.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)104-113
Sayfa sayısı10
DergiJournal of Power Sources
Hacim157
Basın numarası1
DOI'lar
Yayın durumuYayınlandı - 19 Haz 2006
Harici olarak yayınlandıEvet

Finansman

The authors acknowledge the support provided by Nigde University in Turkey, and University of Ontario Institute of Technology and the Natural Sciences and Engineering Research Council of Canada in Canada. The authors also appreciate the efforts of the editor, Dr. Bruno Scrosati for getting the paper reviewed by the expert referees and the constructive comments of the referees which help improve the paper considerably.

FinansörlerFinansör numarası
Nigde University in Turkey
University of Ontario Institute of Technology
Natural Sciences and Engineering Research Council of Canada

    Parmak izi

    Investigation of hydrogen production from boron compounds for pem fuel cells' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

    Alıntı Yap