Fabrication of Carbon-Platinum Interdigitated Array Electrodes and Their Application for Investigating Homogeneous Hydrogen Evolution Catalysis
Journal Article
·
· Journal of the Electrochemical Society
- Univ. of Wyoming, Laramie, WY (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Interdigitated array electrodes (IDAEs) with one carbon electrode and the other platinum electrode were constructed by electrodepositing platinum on one set of the carbon electrodes. Platinum deposition was confirmed by scanning electron microscope (SEM) and cyclic voltammetry. The width of the carbon and platinum digits is less than 2 μm and the gap between two adjacent digits is around 3 μm. The carbon-platinum IDAEs benefit from the characteristics of both carbon and platinum in that carbon can provide a wide nonreactive potential window while platinum is a good catalyst for hydrogen reactions making it useful to characterize the catalytic hydrogen production cycle of the molecular electrocatalyst [Ni(PPh2NPh2)2(CH3CN)](BF4)2 (where PPh2NPh2 is 1,3,5,7-tetraphenyl-1,5-diaza-3,7-diphosphacyclooctane). With properly set potentials, the molecular electrocatalyst was reduced at the carbon digits to initiate a homogeneous H2 production reaction while the platinum digits detect the H2 by oxidation, providing direct evidence of its production rate from the catalytic cycles.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Center for Molecular Electrocatalysis (CME)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357; AC05-76RL01830
- OSTI ID:
- 1370960
- Alternate ID(s):
- OSTI ID: 1233333
- Journal Information:
- Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 9 Vol. 162; ISSN 0013-4651
- Publisher:
- The Electrochemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Quantitative Analysis of Homogeneous Electrocatalytic Reactions at IDA Electrodes: The Example of [Ni(PPh2NBn2)2]2+
Fabrication of Carbon-Platinum Interdigitated Array Electrodes and Their Application for Investigating Homogeneous Hydrogen Evolution Catalysis
[Ni(PMe2NPh2)2](BF4)2 as an Electrocatalyst for H2 Production
Journal Article
·
Wed Nov 30 23:00:00 EST 2016
· Electrochimica Acta
·
OSTI ID:1339844
Fabrication of Carbon-Platinum Interdigitated Array Electrodes and Their Application for Investigating Homogeneous Hydrogen Evolution Catalysis
Journal Article
·
Mon Jun 29 00:00:00 EDT 2015
· Journal of the Electrochemical Society
·
OSTI ID:1233333
[Ni(PMe2NPh2)2](BF4)2 as an Electrocatalyst for H2 Production
Journal Article
·
Fri Mar 16 00:00:00 EDT 2012
· ACS Catalysis
·
OSTI ID:1039845