  In the recently-published paper "Gold Nanobipyramid-Enhanced Hydrogen Sensing
with Plasmon Red Shifts Reaching 140 nm at 2 vol% Hydrogen Concentration" by
Yip et al.,[1] the authors claimed that the tuning of catalytic activities of
the synthesized Au nanobipyramids(NBP)@Pd nanostructures was mainly due to the
electronic effect. Here, we show that this claim is unsupported and an
important reference was mis-cited in this commented publication.
