Abstract
Films electrodeposited onto glassy carbon electrodes from acidic acetonitrile solutions of [Bu4N][Ni(bdt)2] (bdt = 1,2-benzenedithiolate) are active toward electrocatalytic hydrogen production at potentials 0.2-0.4 V positive of untreated electrodes. This activity is preserved when the electrode is rinsed and transferred to a fresh acid solution. X-ray photoelectron spectra indicate that the deposited material contains Ni and S, and time-of-flight secondary ion mass spectrometry shows that electrodeposition decomposes the Ni(bdt)2 assembly. Correlations between voltammetric and spectroscopic results indicate that the deposited material is active, i.e., that catalysis is heterogeneous rather than homogeneous. Control experiments establish that obtaining the observed catalytic response requires both Ni and the 1,2-benzenedithiolate ligand to be present during deposition.
| Original language | English |
|---|---|
| Pages (from-to) | 90-98 |
| Number of pages | 9 |
| Journal | ACS Catalysis |
| Volume | 4 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 3 2014 |
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Keywords
- electrocatalysis
- electrode modification
- electrodeposition
- hydrogen
- nickel thiolate
ASJC Scopus subject areas
- Catalysis
Cite this
Electrodeposition from acidic solutions of nickel bis(benzenedithiolate) produces a hydrogen-evolving Ni-S film on glassy carbon. / Fang, Ming; Engelhard, Mark H.; Zhu, Zihua; Helm, Monte; Roberts, John.
In: ACS Catalysis, Vol. 4, No. 1, 03.01.2014, p. 90-98.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electrodeposition from acidic solutions of nickel bis(benzenedithiolate) produces a hydrogen-evolving Ni-S film on glassy carbon
AU - Fang, Ming
AU - Engelhard, Mark H.
AU - Zhu, Zihua
AU - Helm, Monte
AU - Roberts, John
PY - 2014/1/3
Y1 - 2014/1/3
N2 - Films electrodeposited onto glassy carbon electrodes from acidic acetonitrile solutions of [Bu4N][Ni(bdt)2] (bdt = 1,2-benzenedithiolate) are active toward electrocatalytic hydrogen production at potentials 0.2-0.4 V positive of untreated electrodes. This activity is preserved when the electrode is rinsed and transferred to a fresh acid solution. X-ray photoelectron spectra indicate that the deposited material contains Ni and S, and time-of-flight secondary ion mass spectrometry shows that electrodeposition decomposes the Ni(bdt)2 assembly. Correlations between voltammetric and spectroscopic results indicate that the deposited material is active, i.e., that catalysis is heterogeneous rather than homogeneous. Control experiments establish that obtaining the observed catalytic response requires both Ni and the 1,2-benzenedithiolate ligand to be present during deposition.
AB - Films electrodeposited onto glassy carbon electrodes from acidic acetonitrile solutions of [Bu4N][Ni(bdt)2] (bdt = 1,2-benzenedithiolate) are active toward electrocatalytic hydrogen production at potentials 0.2-0.4 V positive of untreated electrodes. This activity is preserved when the electrode is rinsed and transferred to a fresh acid solution. X-ray photoelectron spectra indicate that the deposited material contains Ni and S, and time-of-flight secondary ion mass spectrometry shows that electrodeposition decomposes the Ni(bdt)2 assembly. Correlations between voltammetric and spectroscopic results indicate that the deposited material is active, i.e., that catalysis is heterogeneous rather than homogeneous. Control experiments establish that obtaining the observed catalytic response requires both Ni and the 1,2-benzenedithiolate ligand to be present during deposition.
KW - electrocatalysis
KW - electrode modification
KW - electrodeposition
KW - hydrogen
KW - nickel thiolate
UR - http://www.scopus.com/inward/record.url?scp=84891796012&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84891796012&partnerID=8YFLogxK
U2 - 10.1021/cs400675u
DO - 10.1021/cs400675u
M3 - Article
AN - SCOPUS:84891796012
VL - 4
SP - 90
EP - 98
JO - ACS Catalysis
JF - ACS Catalysis
SN - 2155-5435
IS - 1
ER -