X-Ray Absorption Spectroscopy Characterizations on PGM-Free Electrocatalysts: Justification, Advantages, and Limitations.
Sign Up to like & getrecommendations! Published in 2018 at "Advanced materials"
DOI: 10.1002/adma.201805157
Abstract: Transition metals embedded in nitrogen-doped carbon matrices (denoted as M-N-C) are the leading platinum group metal (PGM)-free electrocatalysts for the oxygen reduction reaction (ORR) in acid, and are the most promising candidates for replacing platinum… read more here.
Keywords: ray absorption; free electrocatalysts; advantages limitations; spectroscopy ... See more keywords
Atomic-Scale Structural Mapping of Active Sites in Monolayer PGM-Free Catalysts by Low-Voltage 4D-STEM
Sign Up to like & getrecommendations! Published in 2020 at "Microscopy and Microanalysis"
DOI: 10.1017/s143192762001363x
Abstract: Two-dimensional (2D) materials have attracted a large amount of attention in both basic and applied fields, and scanning transmission electron microscopy (STEM) is often uniquely well-suited for characterizing the atomic-scale structure of these materials [1-4].… read more here.
Keywords: microscopy; pgm free; atomic scale; active sites ... See more keywords
Accurate Evaluation of Active-Site Density (SD) and Turnover Frequency (TOF) of PGM-Free Metal–Nitrogen-Doped Carbon (MNC) Electrocatalysts using CO Cryo Adsorption
Sign Up to like & getrecommendations! Published in 2019 at "ACS Catalysis"
DOI: 10.1021/acscatal.9b00588
Abstract: The number of catalytically active sites (site density, SD) and the catalytic turnover frequency (TOF) are critical for meaningful comparisons between catalytic materials and their rational improvement. SD and TOF numbers have remained elusive for… read more here.
Keywords: free metal; site density; pgm free; tof ... See more keywords