Platinum-group metal (PGM)-free iron–nitrogen–carbon (Fe–N–C) catalysts achieved a 0.85 W/cm2 power density, a 19.88% improvement over traditional PGM-free catalysts, with stable operation exceeding 1000 hours. Nanostructured carbon supports enhanced oxygen reduction reaction activity by 30.13%...
We aim to provide new insights into the design and synthesis of advanced PGM-free catalysts with increased density of active sites and controlled bonding in 3D frame network. In addition, we also discuss the possibility to use the well-defined MOF precursors for building up model systems to ...
Largely Cu-doped LaCo1xCuxO3 perovskites for TWC: Toward new PGM-free catalysts Doping of LaCoO 3 with copper to add reduction functionality in addition to the known oxidation properties has been investigated, aiming at three-way cata...
Particularly for the PGM-free catalysts, tremendous efforts have been made to improve the performance and durability—milestones have been achieved in the corresponding PEM fuel cells. Even though the current status is still far from meeting the expectations. More efforts are thus required to further...
Platinum group metal–free (PGM-free) metal-nitrogen-carbon catalysts have emerged as a promising alternative to their costly platinum (Pt)–based counterparts in polymer electrolyte fuel cells (PEFCs) but still face some major challenges, including (i) the identification of the most relevant catal...
The new catalysts revealed high stability against deactivation during the most severe regenerations.Carberry BrendanChigapov AlbertDubkov AlexeiHarmsen JanUkropec RobertCarberry B,Chigapov A,Dubkov A,et al.PGM-free DPF catalyst for soot oxidation. . 2008...
The most promising platinum group metal (PGM)-free catalysts for oxygen reduction reaction (ORR) are atomically dispersed, and nitrogen-coordinated metal site catalysts denoted as M-N-C (M = Fe, Co, or Mn, etc.). Over the last few decades, there have been ...
Anion exchange membrane fuel cellsPlatinum group metalsPd-CeO2/CN-doped carbonHydrogen oxidation reactionThis study focuses on H 2 -O 2 operando AEMFC performance based on several platinum group metal (PGM) and PGM-free catalysts. Specifically, we evaluate the AEMFC performance of commercial PtRu...
The new catalysts revealed high stability against deactivation during the most severe regenerations.doi:EP1990082 A1Carberry BrendanChigapov AlbertDubkov AlexeiHarmsen JanUkropec RobertEPCarberry B,Chigapov A,Dubkov A,et al.PGM-free DPF catalyst for soot oxidation. . 2008...
The link between the density functional theory calculations, the electrocatalytic performance of the catalysts, and structural analysis using modern spectroscopic techniques is expected to significantly increase our understanding of PGM-fee catalysts at the molecular level....