Chevrel Phase Type Compounds: Electronic, Chemical and Structural Factors in Oxygen Reduction Electrocatalysis

1990 ◽  
Vol 94 (4) ◽  
pp. 513-520 ◽  
Author(s):  
W. Jaegermann ◽  
C. Pettenkofer ◽  
N. Alonso Vante ◽  
Th. Schwarzlose ◽  
H. Tributsch
Keyword(s):  
Oxygen Reduction ◽  
Structural Factors ◽  
Chevrel Phase ◽  
Phase Type ◽  
Electronic Chemical

ChemInform Abstract: Chevrel Phase Type Compounds: Electronic, Chemical and Structural Factors in Oxygen Reduction Electrocatalysis.

ChemInform ◽  
1990 ◽  
Vol 21 (26) ◽  
Author(s):  
W. JAEGERMANN ◽  
C. PETTENKOFER ◽  
N. A. VANTE ◽  
TH. SCHWARZLOSE ◽  
H. TRIBUTSCH
Keyword(s):  
Oxygen Reduction ◽  
Structural Factors ◽  
Chevrel Phase ◽  
Phase Type ◽  
Electronic Chemical

scholarly journals Atomic Regulation of PGM Electrocatalysts for the Oxygen Reduction Reaction

2021 ◽  
Vol 9 ◽  
Author(s):  
Menghao Wu ◽  
Changli Chen ◽  
Yizhou Zhao ◽  
Enbo Zhu ◽  
Yujing Li
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Heterogeneous Reaction ◽  
Platinum Group Metal ◽  
Strain Engineering ◽  
Reduction Reaction ◽  
Structural Factors ◽  
Engineering Strain ◽  
Electronic Density

With the increasing enthusiasm for the hydrogen economy and zero-emission fuel cell technologies, intensive efforts have been dedicated to the development of high-performance electrocatalytic materials for the cathodic oxygen reduction reaction (ORR). Some major fundamental breakthroughs have been made in the past few years. Therefore, reviewing the most recent development of platinum-group-metal (PGM) ORR electrocatalysts is of great significance to pushing it forward. It is known that the ORR on the fuel cell electrode is a heterogeneous reaction occurring at the solid/liquid interface, wherein the electron reduces the oxygen along with species in the electrolyte. Therefore, the ORR kinetic is in close correlation with the electronic density of states and wave function, which are dominated by the localized atomic structure including the atomic distance and coordination number (CN). In this review, the recent development in the regulation over the localized state on the catalyst surface is narrowed down to the following structural factors whereby the corresponding strategies include: the crystallographic facet engineering, phase engineering, strain engineering, and defect engineering. Although these strategies show distinctive features, they are not entirely independent, because they all correlate with the atomic local structure. This review will be mainly divided into four parts with critical analyses and comparisons of breakthroughs. Meanwhile, each part is described with some more specific techniques as a methodological guideline. It is hoped that the review will enhance an insightful understanding on PGM catalysts of ORR with a visionary outlook.

Charting the relationship between phase type-surface area-interactions between the constituent atoms and oxygen reduction activity of Pd–Cu nanocatalysts inside fuel cells by in operando high-energy X-ray diffraction

2017 ◽  
Vol 5 (16) ◽  
pp. 7355-7365 ◽  
Author(s):  
Yazan Maswadeh ◽  
Shiyao Shan ◽  
Binay Prasai ◽  
Yinguang Zhao ◽  
Zhi-Hui Xie ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Surface Area ◽  
Structural Changes ◽  
High Energy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Reduction Activity ◽  
Phase Type ◽  
In Operando ◽  
The Relationship

HE-XRD elucidates the link between structural changes of catalysts inside PEMFCs and the performance of PEMFCs.

Rational prediction of multifunctional bilayer single atom catalysts for the hydrogen evolution, oxygen evolution and oxygen reduction reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20413-20424
Author(s):  
Riming Hu ◽  
Yongcheng Li ◽  
Fuhe Wang ◽  
Jiaxiang Shang
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Single Atom ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions

Bilayer single atom catalysts can serve as promising multifunctional electrocatalysts for the HER, ORR, and OER.

HYPERFINE INTERACTION STUDIES OF CHEVREL PHASE SUPERCONDUCTORS

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-367-C6-368 ◽  
Author(s):  
C. W. Kimball ◽  
van Landuyt ◽  
C. Barnett ◽  
G. K. Shenoy ◽  
B. D. Dunlap ◽  
...  
Keyword(s):  
Hyperfine Interaction ◽  
Chevrel Phase ◽  
Interaction Studies
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