TY - JOUR
T1 - Synthesis of Graphitic Mesoporous Carbon from Metal Impregnated Silica Template for Proton Exchange Membrane Fuel Cell Application
AU - Sultana, K. N.
AU - Worku, D.
AU - Hossain, M. T.Z.
AU - Ilias, S.
N1 - Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2019/2/1
Y1 - 2019/2/1
N2 - High surface area graphitic mesoporous carbons (M-mGMC; M=Ni, Fe, Co or Ni-Fe) were synthesized via catalytic graphitization using a hard template based synthesis method. In house prepared SBA-15 silica material was impregnated with metal precursors to obtain M/SBA-15, template for M-mGMC synthesis. These materials were studied using different material characterization techniques, such as nitrogen adsorption desorption (BET), X-ray diffraction (XRD) analysis, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Specific surface area ranging from 1,227.9 m 2 g −1 to 1,320.7 m 2 g −1 was observed for four M-mGMCs. Raman spectroscopy, XPS and wide angle XRD suggested presence of graphitic structure in these materials along with disorders. Electrocatalytic performance of these materials along with conventional carbon black (Vulcan XC-72) were evaluated in a single-stack proton exchange membrane fuel cell (PEMFC). Pt/NiFe-mGMC exhibited enhanced electrocatalytic activity compared to Pt/Ni-mGMC, Pt/Fe-mGMC and Pt/Co-mGMC electrocatalysts. However, Pt/NiFe-mGMC lacked adequate proton transport in membrane electrode assembly (MEA) compared to Pt/Vulcan XC-72. This exploratory study showed that NiFe-mGMC may find application as electrocatalyst support material in PEMFC.
AB - High surface area graphitic mesoporous carbons (M-mGMC; M=Ni, Fe, Co or Ni-Fe) were synthesized via catalytic graphitization using a hard template based synthesis method. In house prepared SBA-15 silica material was impregnated with metal precursors to obtain M/SBA-15, template for M-mGMC synthesis. These materials were studied using different material characterization techniques, such as nitrogen adsorption desorption (BET), X-ray diffraction (XRD) analysis, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Specific surface area ranging from 1,227.9 m 2 g −1 to 1,320.7 m 2 g −1 was observed for four M-mGMCs. Raman spectroscopy, XPS and wide angle XRD suggested presence of graphitic structure in these materials along with disorders. Electrocatalytic performance of these materials along with conventional carbon black (Vulcan XC-72) were evaluated in a single-stack proton exchange membrane fuel cell (PEMFC). Pt/NiFe-mGMC exhibited enhanced electrocatalytic activity compared to Pt/Ni-mGMC, Pt/Fe-mGMC and Pt/Co-mGMC electrocatalysts. However, Pt/NiFe-mGMC lacked adequate proton transport in membrane electrode assembly (MEA) compared to Pt/Vulcan XC-72. This exploratory study showed that NiFe-mGMC may find application as electrocatalyst support material in PEMFC.
KW - Carbon, Catalytic Graphitization, Electrocatalyst
KW - Fuel Cell
KW - Mesoporous Materials
KW - OMC
KW - Photoelectron Spectroscopy
KW - Raman Spectroscopy
KW - SBA-15
KW - X-ray Diffraction
UR - https://www.scopus.com/pages/publications/85060347956
U2 - 10.1002/fuce.201800034
DO - 10.1002/fuce.201800034
M3 - Article
SN - 1615-6846
VL - 19
SP - 27
EP - 34
JO - Fuel Cells
JF - Fuel Cells
IS - 1
ER -
