Nanostructured Platinum-Free Catalysts of Oxygen Reduction based on Metal Chalcogenide Cobalt Clusters

Гринберг, В. А.; Mayorova, N. A.; Пасынский, А. А.; Модестов, А. Д.; Shiryaev, A. A.; Высоцкий, В. В.; Nogai, A. S.

doi:10.1134/s1070328418100056

Cited by 6 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After cooling in a high‐purity argon atmosphere, the catalysts thus obtained contained 30 wt.‐% metals and 70 wt.‐% carbon black. The same procedure have been employed in our previous work …”

Section: Methodsmentioning

confidence: 99%

“…Heterometallic cluster compounds often exhibit enhanced selectivity and activity in various reactions including electrochemical ones. [13a], [13b] In our recent work Co 3 (PhTe) 5 (CO) 4 and [(C 5 HMe 4 )] 2 Co 3 (PhSe) 6 clusters were employed as precursors for preparation of metal chalcogenide catalysts. In acidic media the CoTe 2 /C catalyst showed higher efficiency than the CoSe 2 /C in reaction of electroreduction of molecular oxygen.…”

Section: Introductionmentioning

confidence: 99%

“…Although the activity of these catalysts was inferior to that of a conventional Pt/C catalyst, they were much more tolerant to methanol presence. In addition, such cluster‐derived catalysts are characterized by very uniform composition and distribution over the support surface , …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of Cobalt‐Iron Chalcogenide Clusters as Precursors for Catalysts of Oxygen Electroreduction in Alkali Media

et al. 2020

View full text Add to dashboard Cite

New cobalt‐iron chalcogenide clusters C5HMe4Co(CO)E2Fe2(CO)6 (E = Se, Te) were prepared and characterized by IR and NMR spectroscopy; their structures were determined by single‐crystal XRD. Catalysts consisting of nanoparticles of bimetallic chalcogenides of cobalt and iron deposited on highly dispersed carbon black Vulcan XC‐72 were made from the synthesized clusters. Structural characteristics of these catalysts were assessed using X‐ray phase analysis (XRD), microprobe analysis (EDX), and transmission electron microscopy (TEM). It was shown that on the obtained catalysts oxygen electroreduction reaction in alkaline medium proceeds according to a four‐electron mechanism, and the catalysts are tolerant to methanol presence.

show abstract

Section: Methodsmentioning

confidence: 99%