Subnano Amorphous Fe-Based Clusters with High Mass Activity for Efficient Electrocatalytic Oxygen Reduction Reaction

2019 ◽  
Vol 11 (44) ◽  
pp. 41432-41439 ◽  
Author(s):  
Lingyun Liu ◽  
Xu Zhao ◽  
Renwen Li ◽  
Hui Su ◽  
Hui Zhang ◽  
...  



Author(s):  
Melina Zysler ◽  
Tal Klingbell ◽  
Charles D. Amos ◽  
Paulo Fereira ◽  
David Zitoun

Pt-Ni nanoparticles (NPs) are used as electrocatalysts toward the oxygen reduction reaction due to their high mass activity. However, degradation processes at the high potential in the acidic conditions of...



ChemCatChem ◽  
2021 ◽  
Author(s):  
Youlin Liu ◽  
Jinjiang Liu ◽  
Meimei Wang ◽  
Yuesong Shen ◽  
Shipin Yang ◽  
...  


2012 ◽  
Vol 12 (11) ◽  
pp. 8349-8355 ◽  
Author(s):  
Mohammad Shamsuddin Ahmed ◽  
Daekun Kim ◽  
Hyoung Soon Han ◽  
Haesang Jeong ◽  
Seungwon Jeon


2019 ◽  
Vol 20 (1) ◽  
pp. 197-204
Author(s):  
José J. Salvador-Pascual ◽  
Omar Solorza-Feria


Author(s):  
Kai Zhang ◽  
Bai Yang ◽  
Congcong Wang ◽  
Yixin Chen ◽  
Ying Liu ◽  
...  

Exploring sustainable and highly activity electrocatalysts for the oxygen reduction reaction (ORR) is vital for the development and application of energy conversion technologies. Here, we prepared Fe isolated-single atomic-site (ISAs)...



Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 955 ◽  
Author(s):  
Jing Liu ◽  
Jiao Yin ◽  
Bo Feng ◽  
Tao Xu ◽  
Fu Wang

The Pt particles within diameters of 1–3 nm known as Pt nanoclusters (NCs) are widely considered to be satisfactory oxygen reduction reaction (ORR) catalysts due to higher electrocatalytic performance and cost effectiveness. However, the utilization of such smaller Pt NCs is always limited by the synthesis strategies, stability and methanol tolerance of Pt. Herein, unprotected Pt NCs (~2.2 nm) dispersed on carbon nanotubes (CNTs) were prepared via a modified top-down approach using liquid Li as a solvent to break down the bulk Pt. Compared with the commercial Pt/C, the resultant Pt NCs/CNTs catalyst (Pt loading: 10 wt.%) exhibited more desirable ORR catalytic performance in 0.1 M HClO4. The specific activity (SA) and mass activity (MA) at 0.9 V for ORR over Pt NCs/CNTs were 2.5 and 3.2 times higher than those over the commercial Pt/C (Pt loading: 20 wt.%). Meanwhile, the Pt NCs/CNTs catalyst demonstrated more satisfactory stability and methanol tolerance. Compared with the obvious loss (~69%) of commercial Pt/C, only a slight current decrease (~10%) was observed for Pt NCs/CNTs after the chronoamperometric measurement for 2 × 104 s. Hence, the as-prepared Pt NCs/CNTs material displays great potential as a practical ORR catalyst.



2020 ◽  
Vol 124 (18) ◽  
pp. 10045-10056
Author(s):  
Aigerim Galyamova ◽  
Kihyun Shin ◽  
Graeme Henkelman ◽  
Richard M. Crooks


2018 ◽  
Vol 6 (14) ◽  
pp. 5740-5745 ◽  
Author(s):  
Yijie Zhang ◽  
Luhua Lu ◽  
Si Zhang ◽  
Zaozao Lv ◽  
Dantong Yang ◽  
...  

Biomass chitosan was used for the scalable synthesis of cobalt/nitrogen doped carbon nanotube composites with impressive oxygen reduction reaction activity and stability.



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