In the present study, non-PGM catalyst was synthesized by the sacrificial support method and the electrospraying technique was used to fabricate catalyst layer electrodes. Electrodes with substantially different structural properties were obtained by varying the electrospraying parameters such as ink flow ...
We present here an overview of recent advances in understanding water management in PGM-free catalyst layer for ORR in PEFCs and provide an opinion on design guidance in optimizing catalyst layers to avoid flooding.doi:10.1016/j.coelec.2020.08.004Pongsarun Satjaritanun...
The evolution of cell performance with varying cathode catalyst layer compositions, back pressure, and dew points is underscored. The as-synthesized PtRu/C catalyst is characterized by advanced transmission electron microscopy and showed significantly high performance reaching a peak power density of 1900...
Through transport modelling, we identify that an anion-exchange ionomer in the catalyst layer improves local bicarbonate availability and increasing the proton transference number in the bipolar membranes increases COregeneration and limits Kconcentration in the cathode region. Through experiments, we show ...
Iron-nitrogen-carbon catalyst based on iron phthalocyanine supported on nitrogen-functionalized carbon black pearls (FeBP(N)) was integrated into gas diffusion layer electrodes by hot pressing and tested at the cathode side of microbial fuel cells (MFC). As highlighted by I-V characteristics, peak...
Loading of PGM in OC layer is less than 5 g/ft. A testing methodology for samples may be enabled including of DOC light-off, and soaking under isothermal DOC and sulfated DOC conditions to assess synergistic influence of adding ZPGM to PGM catalyst samples. Resistance to sulfur and catalytic...
Present disclosure provides a novel process for optimization of Zero-PGM catalyst systems using metallic substrate. Deposition of a homogeneous and well-adhered layer of catalyst on the metallic substrate may be enabled by the selection of a washcoat loading resulting from variation of metal loadings...
Catalyst layer morphologyFocused ion beamMembrane electrode assemblyPolarization curvesIron-Mebendazole catalyst, best performer, had best pore connectivity.The biggest discrepancy in MEA performance was in the transport region.Loss of MEA performance was due to gaseous transport limitations.Pore connectivity ...
catalyst configurations, which may include an alumina only washcoat layer coated on a suitable ceramic substrate, and an overcoat layer with or without an impregnation layer, including Cu—Mn—Fe spinel and doped Zirconia support oxide, prepared according to variations of disclosed coating processes....
The disclosed coating processes for ZPGM materials are enabled in the preparation of ZPGM catalyst samples according to a plurality of catalyst configurations, which may include washcoat and an overcoat layer with or without an impregnation layer, including Cu鈥擬n spinel and doped Zirconia support...