Studies on catalytic behavior of co–cr–b/al2 o3 in hydrogen generation by hydrolysis of nabh4

M. S. Izgi; O. Baytar; S. Horoz

Studies on catalytic behavior of co–cr–b/al₂ o₃ in hydrogen generation by hydrolysis of nabh₄

M. S. Izgi
, O. Baytar
, Şahin
, S. Horoz^*

^*Corresponding author for this work

Siirt University

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

In this present study, the chemical reduction technique was used to synthesize Al₂O₃ supported Co-Cr-B catalyst (Co-Cr-B/Al₂O₃). The effects of the concentration of NaBH₄, NaOH, amount of catalyst, ratio of metal/ Al₂ O₃and temperature were discussed in detail. The results show that the reaction rate of hydrolysis first rises up and then goes down subsequently with the increase of NaBH₄ concentration, as well as the concentration of NaOH. It was observed that the hydrogen generation rate increases with the molar content of metal changing from 2.5% to 5 wt%. However, when the metal/Al₂O₃ molar ratio is located from 5% to 20 wt%, the rate of hydrogen generation goes down. The hydrolysis kinetic order and the activation energy (E_E ) of NaBH₄ in the presence of Co-Cr-B/Al₂O₃ catalyst were found as 0.15 and 37.34 kJ*mol^-1, respectively. According to the results obtained, Co-Cr-B/Al₂O₃ catalyst can be used as a promising material in PEMFC mobile systems.

Original language	English
Pages (from-to)	1005-1012
Number of pages	8
Journal	Digest Journal of Nanomaterials and Biostructures
Volume	14
Issue number	4
Publication status	Published - 1 Oct 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019, S.C. Virtual Company of Phisics S.R.L. All rights reserved.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

AlO
Catalyst
Co-Cr-B
Hydrogen generation
NaBH

Cite this

@article{481981dd783948aeb437fd59f6f2591f,

title = "Studies on catalytic behavior of co{\textendash}cr{\textendash}b/al2 o3 in hydrogen generation by hydrolysis of nabh4 ",

abstract = "In this present study, the chemical reduction technique was used to synthesize Al2O3 supported Co-Cr-B catalyst (Co-Cr-B/Al2O3). The effects of the concentration of NaBH4, NaOH, amount of catalyst, ratio of metal/ Al2 O3and temperature were discussed in detail. The results show that the reaction rate of hydrolysis first rises up and then goes down subsequently with the increase of NaBH4 concentration, as well as the concentration of NaOH. It was observed that the hydrogen generation rate increases with the molar content of metal changing from 2.5\% to 5 wt\%. However, when the metal/Al2O3 molar ratio is located from 5\% to 20 wt\%, the rate of hydrogen generation goes down. The hydrolysis kinetic order and the activation energy (EE ) of NaBH4 in the presence of Co-Cr-B/Al2O3 catalyst were found as 0.15 and 37.34 kJ*mol-1, respectively. According to the results obtained, Co-Cr-B/Al2O3 catalyst can be used as a promising material in PEMFC mobile systems.",

keywords = "AlO, Catalyst, Co-Cr-B, Hydrogen generation, NaBH",

author = "Izgi, \{M. S.\} and O. Baytar and {\c S}ahin and S. Horoz",

year = "2019",

month = oct,

day = "1",

language = "English",

volume = "14",

pages = "1005--1012",

journal = "Digest Journal of Nanomaterials and Biostructures",

issn = "1842-3582",

publisher = "S.C. Virtual Company of Physics S.R.L",

number = "4",

}

TY - JOUR

T1 - Studies on catalytic behavior of co–cr–b/al2 o3 in hydrogen generation by hydrolysis of nabh4

AU - Izgi, M. S.

AU - Baytar, O.

AU - Şahin,

AU - Horoz, S.

PY - 2019/10/1

Y1 - 2019/10/1

N2 - In this present study, the chemical reduction technique was used to synthesize Al2O3 supported Co-Cr-B catalyst (Co-Cr-B/Al2O3). The effects of the concentration of NaBH4, NaOH, amount of catalyst, ratio of metal/ Al2 O3and temperature were discussed in detail. The results show that the reaction rate of hydrolysis first rises up and then goes down subsequently with the increase of NaBH4 concentration, as well as the concentration of NaOH. It was observed that the hydrogen generation rate increases with the molar content of metal changing from 2.5% to 5 wt%. However, when the metal/Al2O3 molar ratio is located from 5% to 20 wt%, the rate of hydrogen generation goes down. The hydrolysis kinetic order and the activation energy (EE ) of NaBH4 in the presence of Co-Cr-B/Al2O3 catalyst were found as 0.15 and 37.34 kJ*mol-1, respectively. According to the results obtained, Co-Cr-B/Al2O3 catalyst can be used as a promising material in PEMFC mobile systems.

AB - In this present study, the chemical reduction technique was used to synthesize Al2O3 supported Co-Cr-B catalyst (Co-Cr-B/Al2O3). The effects of the concentration of NaBH4, NaOH, amount of catalyst, ratio of metal/ Al2 O3and temperature were discussed in detail. The results show that the reaction rate of hydrolysis first rises up and then goes down subsequently with the increase of NaBH4 concentration, as well as the concentration of NaOH. It was observed that the hydrogen generation rate increases with the molar content of metal changing from 2.5% to 5 wt%. However, when the metal/Al2O3 molar ratio is located from 5% to 20 wt%, the rate of hydrogen generation goes down. The hydrolysis kinetic order and the activation energy (EE ) of NaBH4 in the presence of Co-Cr-B/Al2O3 catalyst were found as 0.15 and 37.34 kJ*mol-1, respectively. According to the results obtained, Co-Cr-B/Al2O3 catalyst can be used as a promising material in PEMFC mobile systems.

KW - AlO

KW - Catalyst

KW - Co-Cr-B

KW - Hydrogen generation

KW - NaBH

UR - https://www.scopus.com/pages/publications/85082699868

M3 - Article

AN - SCOPUS:85082699868

SN - 1842-3582

VL - 14

SP - 1005

EP - 1012

JO - Digest Journal of Nanomaterials and Biostructures

JF - Digest Journal of Nanomaterials and Biostructures

IS - 4

ER -