Premium
Ni 2 P Makes Application of the PtRu Catalyst Much Stronger in Direct Methanol Fuel Cells
Author(s) -
Chang Jinfa,
Feng Ligang,
Liu Changpeng,
Xing Wei
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201500357
Subject(s) - catalysis , methanol , direct methanol fuel cell , power density , cyclic voltammetry , methanol fuel , fuel cells , materials science , chemistry , chemical engineering , electrochemistry , inorganic chemistry , nanotechnology , power (physics) , organic chemistry , thermodynamics , physics , electrode , anode , engineering
PtRu is regarded as the best catalyst for direct methanol fuel cells, but the performance decay resulting from the loss of Ru seriously hinders commercial applications. Herein, we demonstrated that the presence of Ni 2 P largely reduces Ru loss, which thus makes the application of PtRu much stronger in direct methanol fuel cells. Outstanding catalytic activity and stability were observed by cyclic voltammetry. Upon integrating the catalyst material into a practical direct methanol fuel cell, the highest maximum power density was achieved on the PtRu‐Ni 2 P/C catalyst among the reference catalysts at different temperatures. A maximum power density of 69.9 mW cm −2 at 30 °C was obtained on PtRu‐Ni 2 P/C, which is even higher than the power density of the state‐of‐the‐art commercial PtRu catalyst at 70 °C (63.1 mW cm −2 ). Moreover, decay in the performance resulting from Ru loss was greatly reduced owing to the presence of Ni 2 P, which is indicative of very promising applications.