Abstract
Pd nanoparticle size is one of important factors to determine the catalytic activity of formic acid dehydrogenation catalysts. Thus various approaches to minimization of Pd nanoparticles have been attempted. In this study, we first tried to decrease Pd nanoparticles size and increase Pd dispersion of Pd/NH2-mesoporous silica (Pd/NH2-KIE-6) catalysts by controlling only stirring time and types of Pd precursors. It was demonstrated that the stirring time and types of Pd precursors significantly affect the performance of the catalysts. As a result, the Pd/NH2-KIE-6 exhibited the highest catalytic activity (TOF: 8185 mol H2 mol catalyst−1 h−1) ever reported for additive-free formic acid dehydrogenation at room temperature. In addition, the Pd/NH2-KIE-6 provided higher TOF even than the case with additives such as sodium formate. Considering that the catalytic activity of Pd-based catalysts for formic acid dehydrogenation was previously controlled by promoter, support type and surface chemistry of supports, controlling the stirring time and types of Pd precursors is novel and very intriguing solutions to go beyond the current kinetic limitation for formic acid dehydrogenation.
| Original language | English |
|---|---|
| Pages (from-to) | 1451-1458 |
| Number of pages | 8 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 43 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2018 Jan 18 |
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Keywords
- Dehydrogenation
- Formic acid
- Heterogeneous catalysts
- Hydrogen storage
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
Cite this
Pd/NH2-KIE-6 catalysts with exceptional catalytic activity for additive-free formic acid dehydrogenation at room temperature : Controlling Pd nanoparticle size by stirring time and types of Pd precursors. / Jin, Min Ho; Park, Ju Hyoung; Oh, Duckkyu; Lee, Sung Wook; Park, Jong Soo; Lee, Kwan Young; Lee, Dong Wook.
In: International Journal of Hydrogen Energy, Vol. 43, No. 3, 18.01.2018, p. 1451-1458.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pd/NH2-KIE-6 catalysts with exceptional catalytic activity for additive-free formic acid dehydrogenation at room temperature
T2 - Controlling Pd nanoparticle size by stirring time and types of Pd precursors
AU - Jin, Min Ho
AU - Park, Ju Hyoung
AU - Oh, Duckkyu
AU - Lee, Sung Wook
AU - Park, Jong Soo
AU - Lee, Kwan Young
AU - Lee, Dong Wook
PY - 2018/1/18
Y1 - 2018/1/18
N2 - Pd nanoparticle size is one of important factors to determine the catalytic activity of formic acid dehydrogenation catalysts. Thus various approaches to minimization of Pd nanoparticles have been attempted. In this study, we first tried to decrease Pd nanoparticles size and increase Pd dispersion of Pd/NH2-mesoporous silica (Pd/NH2-KIE-6) catalysts by controlling only stirring time and types of Pd precursors. It was demonstrated that the stirring time and types of Pd precursors significantly affect the performance of the catalysts. As a result, the Pd/NH2-KIE-6 exhibited the highest catalytic activity (TOF: 8185 mol H2 mol catalyst−1 h−1) ever reported for additive-free formic acid dehydrogenation at room temperature. In addition, the Pd/NH2-KIE-6 provided higher TOF even than the case with additives such as sodium formate. Considering that the catalytic activity of Pd-based catalysts for formic acid dehydrogenation was previously controlled by promoter, support type and surface chemistry of supports, controlling the stirring time and types of Pd precursors is novel and very intriguing solutions to go beyond the current kinetic limitation for formic acid dehydrogenation.
AB - Pd nanoparticle size is one of important factors to determine the catalytic activity of formic acid dehydrogenation catalysts. Thus various approaches to minimization of Pd nanoparticles have been attempted. In this study, we first tried to decrease Pd nanoparticles size and increase Pd dispersion of Pd/NH2-mesoporous silica (Pd/NH2-KIE-6) catalysts by controlling only stirring time and types of Pd precursors. It was demonstrated that the stirring time and types of Pd precursors significantly affect the performance of the catalysts. As a result, the Pd/NH2-KIE-6 exhibited the highest catalytic activity (TOF: 8185 mol H2 mol catalyst−1 h−1) ever reported for additive-free formic acid dehydrogenation at room temperature. In addition, the Pd/NH2-KIE-6 provided higher TOF even than the case with additives such as sodium formate. Considering that the catalytic activity of Pd-based catalysts for formic acid dehydrogenation was previously controlled by promoter, support type and surface chemistry of supports, controlling the stirring time and types of Pd precursors is novel and very intriguing solutions to go beyond the current kinetic limitation for formic acid dehydrogenation.
KW - Dehydrogenation
KW - Formic acid
KW - Heterogeneous catalysts
KW - Hydrogen storage
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UR - http://www.scopus.com/inward/citedby.url?scp=85037606960&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2017.10.117
DO - 10.1016/j.ijhydene.2017.10.117
M3 - Article
VL - 43
SP - 1451
EP - 1458
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 3
ER -