Hydrogen Sorption Kinetics on Bare and Platinum-Modified Palladium Nanofilms, Grown by Electrochemical Atomic Layer Deposition (E-ALD)
Hydrogen Sorption Kinetics on Bare and Platinum-Modified Palladium Nanofilms, Grown by Electrochemical Atomic Layer Deposition (E-ALD)
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通过电化学原子层沉积 (E-ALD) 生长的裸钯纳米膜和铂改性钯纳米膜的氢吸附动力学
DOI:
10.1149/2.0051612jes
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发表时间:
2016
影响因子:
3.9
通讯作者:
Stickney, John L.
中科院分区:
文献类型:
--
作者:
Jagannathan, Kaushik;Benson, David M.;Robinson, David B.;Stickney, John L.
Nanofilms of Pd were grown using an electrochemical form of atomic layer deposition (E-ALD) on 100 nm evaporated Au films on glass. Multiple cycles of surface-limited redox replacement (SLRR) were used to grow deposits. Each SLRR involved the underpotential deposition (UPD) of a Cu atomic layer, followed by open circuit replacement via redox exchange with tetrachloropalladate, forming a Pd atomic layer: one E-ALD deposition cycle. That cycle was repeated in order to grow deposits of a desired thickness. 5 cycles of Pd deposition were performed on the Au on glass substrates, resulting in the formation of 2.5 monolayers of Pd. Those Pd films were then modified with varying coverages of Pt, also formed using SLRR. The amount of Pt was controlled by changing the potential for Cu UPD, and by increasing the number of Pt deposition cycles. Hydrogen absorption was studied using coulometry and cyclic voltammetry in 0.1 MH 2 SO 4 as a function of Pt coverage. The presence of even a small fraction of a Pt monolayer dramatically increased the rate of hydrogen desorption. However, this did not reduce the films' hydrogen storage capacity. The increase in desorption rate in the presence of Pt was over an order of magnitude.
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影响因子:
--
作者:
T. Wade;L. C. Ward;Clinton B. Maddox;U. Happek;J. Stickney
通讯作者:
T. Wade;L. C. Ward;Clinton B. Maddox;U. Happek;J. Stickney
DOI:
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发表时间:
1991
期刊:
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作者:
A. Czerwiński;S. Zamponi;R. Marassi
通讯作者:
R. Marassi
DOI:
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期刊:
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作者:
P. Bartlett;J. Marwan
通讯作者:
J. Marwan
DOI:
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发表时间:
1981
期刊:
影响因子:
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作者:
H. A. Rafizadeh
通讯作者:
H. A. Rafizadeh
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Leah B. Sheridan;Veronica M. Yates;David M Benson;J. Stickney;D. Robinson
通讯作者:
D. Robinson