Enhanced ORR activity of S- and N-modified non-noble metal-doped carbons with bamboo-like C nanotubes grafted onto their surface

Mysliu, Erlind; Scavini, Marco; Santangelo, S.; Patanè, Salvatore; Ditaranto, Nicoletta; Bassani, Paola; Longhi, Mariangela

doi:10.1016/j.electacta.2023.142946

Electrochimica Acta

2023

DOI: 10.1016/j.electacta.2023.142946

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Enhanced ORR activity of S- and N-modified non-noble metal-doped carbons with bamboo-like C nanotubes grafted onto their surface

Erlind Mysliu

Marco Scavini

S. Santangelo

et al.

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Cited by 5 publications

References 67 publications

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Tailoring N and S Heteroatoms Through Rational Design in Carbon Nanotubes‐Graphene Composites for Enhanced Zn‐Air Battery Performance

Béjar,

De‐la‐Fuente Valerio,

Ramos‐Castillo

et al. 2024

ChemSusChem

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Cathodic materials significantly influence the performance, durability, and sustainability of primary zinc‐air batteries (ZABs). This study focuses on the rational design of highly active metal‐free composites by tailoring the content of N and S heteroatoms in carbon nanotube‐graphene (CNTG) composites. The oxygen reduction reaction (ORR) tests showed onset potentials (Eo) of 0.88 V (N‐CNT) and 0.89 V (N‐graphene) for individual materials and 0.92 V for the N‐CNTG composite. The N content varied with dicyandiamide and urea, showing changes in the surface area and N content (7.09 vs. 5.30 at. %), and in pyridinic and quaternary N species. The abundance of pyridinic‐N species in N‐CNTG using urea enabled a higher ORR activity (Eo=0.92 V). The S incorporation through thiourea improved the Eo to 0.94 V (Pt/C= 1.03 V). And, the combination of urea and thiourea resulted in a highly active and durable N,S‐CNTG material, displaying a Eo of 0.96 V, and an activity loss of 8.7% (Pt/C= 25.4%) after 2000 cycles. In ZAB mode, this material displayed a voltage of 1.35 V, a power density of 107 mW cm−2, and a specific capacity of 1060 mA‧h g−1.

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Tailoring N and S Heteroatoms Through Rational Design in Carbon Nanotubes‐Graphene Composites for Enhanced Zn‐Air Battery Performance

Béjar,

De‐la‐Fuente Valerio,

Ramos‐Castillo

et al. 2024

ChemSusChem

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Highly dispersed Co nanoparticles confined by mesopore-rich N-doped hollow carbon nanotubes for efficient oxygen reduction reaction and Zn-air battery

Zhou,

Liu,

Yan

et al. 2024

Applied Surface Science

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Graphitic N-C-P configuration of phosphorus and nitrogen co-doped carbon for boosting the oxygen electroreduction

Li,

Wang,

et al. 2025

Applied Surface Science

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Enhanced ORR activity of S- and N-modified non-noble metal-doped carbons with bamboo-like C nanotubes grafted onto their surface

Cited by 5 publications

References 67 publications

Tailoring N and S Heteroatoms Through Rational Design in Carbon Nanotubes‐Graphene Composites for Enhanced Zn‐Air Battery Performance

Tailoring N and S Heteroatoms Through Rational Design in Carbon Nanotubes‐Graphene Composites for Enhanced Zn‐Air Battery Performance

Highly dispersed Co nanoparticles confined by mesopore-rich N-doped hollow carbon nanotubes for efficient oxygen reduction reaction and Zn-air battery

Graphitic N-C-P configuration of phosphorus and nitrogen co-doped carbon for boosting the oxygen electroreduction

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