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Electroactive Cu−P‐Coupled Moieties Doped in Hierarchically Porous Carbon as Efficient Catalysts for the Oxygen‐Reduction Reaction
Author(s) -
Ni Yangyang,
Qiao Yu,
Kong Fantao,
Li Ruijing,
Zhang Chaoqi,
Kong Aiguo,
Shan Yongkui
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201801091
Subject(s) - catalysis , electrocatalyst , copper , carbon fibers , oxygen reduction reaction , porosity , chemistry , oxygen , inorganic chemistry , materials science , doping , chemical engineering , nuclear chemistry , electrochemistry , electrode , organic chemistry , optoelectronics , composite material , composite number , engineering
A porous carbon material that was co‐doped with copper and phosphorus (Cu−P−C) was synthesized by the direct thermal conversion of [(Ph 3 P) 2 CuCl 2 ] in the channels of an SBA‐15 template and found to be an impressive Cu‐based electrocatalyst. The prefabricated Cu−P x moieties in the starting [(Ph 3 P) 2 CuCl 2 ] were retained during the preparation process of the catalyst. These Cu−P x active sites effectively catalyzed the oxygen‐reduction reaction (ORR). Moreover, the hierarchically porous morphology of the Cu−P−C material, which demonstrated a large specific surface area, allowed for a higher density of the Cu−P x active sites, thereby facilitating mass transfer and further boosting the electrocatalytic activity of the Cu−P−C catalyst. The as‐obtained catalyst exhibited surprising catalytic activity, with a halfwave potential of 0.833 V in alkaline medium, which was comparable to that of the commercial Pt/C‐JM catalyst, and possessed the highest activity among the reported M−P−C catalysts for the ORR.