Details
| Original language | English |
|---|---|
| Pages (from-to) | 570-576 |
| Number of pages | 7 |
| Journal | CHEMELECTROCHEM |
| Volume | 4 |
| Issue number | 3 |
| Publication status | Published - 17 Mar 2017 |
Abstract
Compact platinum plates have been micro- and nanostructured by using a one-step process with ultrashort laser pulses. Depending on the parameters of the laser treatment (power, line distance, and scan speed), distinct surface structures can be produced by different spot energy densities. The platinum plates structured this way were tested for their electrochemical activity in the oxygen reduction reaction in aqueous HClO4 by using cyclic voltammetry and rotating disk electrode approaches. The laser-induced surface structuring yields a substantial enhancement in the electrochemical activity of platinum surfaces. The observed rise of the electrochemical activity by a factor of 1500 is attributed to the considerable increase of the surface area.
Keywords
- black platinum, laser-induced periodic surface structures, oxygen reduction reaction, platinum electrode, ultrashort pulse laser structuring
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- Electrochemistry
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In: CHEMELECTROCHEM, Vol. 4, No. 3, 17.03.2017, p. 570-576.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Platinum Electrodes for Oxygen Reduction Catalysis Designed by Ultrashort Pulse Laser Structuring
AU - Lange, Karsten
AU - Schulz-Ruhtenberg, Malte
AU - Caro, Jürgen
PY - 2017/3/17
Y1 - 2017/3/17
N2 - Compact platinum plates have been micro- and nanostructured by using a one-step process with ultrashort laser pulses. Depending on the parameters of the laser treatment (power, line distance, and scan speed), distinct surface structures can be produced by different spot energy densities. The platinum plates structured this way were tested for their electrochemical activity in the oxygen reduction reaction in aqueous HClO4 by using cyclic voltammetry and rotating disk electrode approaches. The laser-induced surface structuring yields a substantial enhancement in the electrochemical activity of platinum surfaces. The observed rise of the electrochemical activity by a factor of 1500 is attributed to the considerable increase of the surface area.
AB - Compact platinum plates have been micro- and nanostructured by using a one-step process with ultrashort laser pulses. Depending on the parameters of the laser treatment (power, line distance, and scan speed), distinct surface structures can be produced by different spot energy densities. The platinum plates structured this way were tested for their electrochemical activity in the oxygen reduction reaction in aqueous HClO4 by using cyclic voltammetry and rotating disk electrode approaches. The laser-induced surface structuring yields a substantial enhancement in the electrochemical activity of platinum surfaces. The observed rise of the electrochemical activity by a factor of 1500 is attributed to the considerable increase of the surface area.
KW - black platinum
KW - laser-induced periodic surface structures
KW - oxygen reduction reaction
KW - platinum electrode
KW - ultrashort pulse laser structuring
UR - http://www.scopus.com/inward/record.url?scp=85011635981&partnerID=8YFLogxK
U2 - 10.1002/celc.201600630
DO - 10.1002/celc.201600630
M3 - Article
AN - SCOPUS:85011635981
VL - 4
SP - 570
EP - 576
JO - CHEMELECTROCHEM
JF - CHEMELECTROCHEM
SN - 2196-0216
IS - 3
ER -