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@ARTICLE{Kaur:634807,
author = {Kaur, Komalpreet and Sahoo, Lipipuspa and Garg, Reeya and
Kamra, Sahil and Nawani, Mukul and Gautam, Ujjal},
title = {{A}lleviating {T}emperature-{I}nduced {O}xidative
{P}oisoning in {O}xophilic {P}d for {M}ethanol
{E}lectrocatalysis},
journal = {ACS catalysis},
volume = {15},
number = {11},
issn = {2155-5435},
address = {Washington, DC},
publisher = {ACS},
reportid = {PUBDB-2025-02628},
pages = {8653 - 8662},
year = {2025},
note = {Waiting for fulltext},
abstract = {While simultaneously highly active and durable catalysts
for the methanol-oxidation reaction (MOR) are rare, their
performance at device-relevant elevated temperatures has
been barely explored. In this work, we design oxophilic
Ni-doped Pd nanowire morphology, which can impart multiple
catalyst-electrode contacts, achieving a superior MOR mass
activity of ∼3.5 A mg–1 and commendable stability with
$<0.8\%$ degradation/hour. Through comprehensive studies
across varying temperatures and potentials, we reveal
significant performance deviations at high temperatures (HT)
compared to conventional room-temperature data, as well as
stark behavioral contrasts between Pt and Pd. The Pd
nanowires exhibit superior resistance to surface oxidation
at HT, thereby retaining their high MOR performance with
2-fold deviations in activation energy values with varied
applied potentials, while Pt barely shows any variation. To
corroborate this, we systematically map the
temperature-dependent −OH formation vs utilization
kinetics and establish a direct correlation with −OH
tolerance. Due to superior activation by resisting −OH
poisoning, the Pd nanowires widen their theoretical
operating potential window by over $180\%$ more than in Pt.
While Pd is already recognized for its superior CO
tolerance, our study establishes that it is also more
resilient to OH poisoning at elevated temperatures, enabling
simultaneous high activity and activation.},
cin = {FS DOOR-User},
ddc = {540},
cid = {$I:(DE-H253)FS_DOOR-User-20241023$},
pnm = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20220874
(I-20220874) / INDIA-DESY - INDIA-DESY Collaboration
$(2020_Join2-INDIA-DESY)$},
pid = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20220874 /
$G:(DE-HGF)2020_Join2-INDIA-DESY$},
experiment = {EXP:(DE-H253)P-P65-20150101},
typ = {PUB:(DE-HGF)16},
doi = {10.1021/acscatal.5c01082},
url = {https://bib-pubdb1.desy.de/record/634807},
}