10.1002/cssc.201801473
ChemSusChem
FULL PAPER
Maggellan 400 field-emission scanning electron microscope (FESEM)
and a FEI Talos microscope operated at 200 kV. The powder X-ray
diffraction (XRD) patterns of samples were recorded on a Rigaku D/Max-
2550 V diffractometer with Cu Kα radiation source (40 kV, 40 mA) and a
scanning rate of 4° min-1. X-ray photoelectron spectroscopy (XPS)
Keywords: Single-atom/site electrocatalysis • Transition metal
sites • Oxygen reduction reaction • Hydrogen evolution reaction •
Selectivity
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ꢀꢁ
n = 4 ×
ꢀꢁ ꢂ ꢀꢃꢄꢅ
ꢀꢃꢄꢅ
ꢆꢇꢈꢇ % = ꢇ00 ×
ꢀꢁ ꢂ ꢀꢃꢄꢅ
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Acknowledgements
This research was supported by the Shanghai International
Cooperation Project (16520710200), and China National Funds
for Distinguished Young Scientists (51225202). This research
used the resources of the Advanced Photon Source and the
Center for Nanoscale Materials, Office of Science user facilities,
were supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357.
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