Account

Table 3 Surface atomic concentration of different types of nitrogen in Co-PPy-TsOH/C catalysts prepared from various cobalt precursors

From: Effects of cobalt precursor on pyrolyzed carbon-supported cobalt-polypyrrole as electrocatalyst toward oxygen reduction reaction

Cobalt precursor	Pyridinic-N	Pyrrolic-N	Graphitic-N	Oxidized-N
Cobalt acetate	0.308	0.225	0.279	0.188
Cobalt nitrate	0.297	0.204	0.293	0.207
Cobalt oxalate	0.345	0.305	0.197	0.153
Cobalt chloride	0.355	0.311	0.175	0.159

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