Journal ArticleDOI
High‐Performance Oxygen Reduction Electrocatalysts based on Cheap Carbon Black, Nitrogen, and Trace Iron
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TLDR
The real optimal electrocatalyst shows superior high activity for ORR and possesses the best price/performance ratio ever.Abstract:
A real optimal Fe content: For N and Fe co-doped carbon electrocatalysts for oxygen reduction reactions (ORRs) it is found that there is a real optimal trace Fe content (Peak II), which has never been observed before. The real optimal electrocatalyst shows superior high activity for ORR and possesses the best price/performance ratio ever.read more
Citations
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Journal ArticleDOI
Understanding the High Activity of Fe-N-C Electrocatalysts in Oxygen Reduction: Fe/Fe3C Nanoparticles Boost the Activity of Fe-N(x).
Wen-Jie Jiang,Lin Gu,Li Li,Yun Zhang,Yun Zhang,Xing Zhang,Linjuan Zhang,Jianqiang Wang,Jin-Song Hu,Zidong Wei,Li-Jun Wan +10 more
TL;DR: A new highly active Fe-n-C ORR catalyst containing Fe-N(x) coordination sites and Fe/Fe3C nanocrystals (Fe@C-FeNC) is developed, and the origin of its activity is revealed by intensively investigating the composition and the structure of the catalyst and their correlations with the electrochemical performance.
Journal ArticleDOI
A universal principle for a rational design of single-atom electrocatalysts
TL;DR: In this article, a universal design principle was proposed to evaluate the catalytic activity of single-atom catalysts for electrochemical reactions, which is a key to future renewable energy technology.
Journal ArticleDOI
Oxygen Reduction in Alkaline Media: From Mechanisms to Recent Advances of Catalysts
Xiaoming Ge,Afriyanti Sumboja,Delvin Wuu,Tao An,Bing Li,F. W. Thomas Goh,T. S. Andy Hor,T. S. Andy Hor,Yun Zong,Zhaolin Liu +9 more
TL;DR: In this article, the authors introduce the thermodynamics, reaction kinetics, reaction mechanisms, and reaction pathways of ORR in aqueous alkaline media, and summarize the current status of the reaction pathways, advanced catalysts, and the future challenges of the research and development of the ORR.
Journal ArticleDOI
Well-Dispersed ZIF-Derived Co,N-Co-doped Carbon Nanoframes through Mesoporous-Silica-Protected Calcination as Efficient Oxygen Reduction Electrocatalysts
Lu Shang,Huijun Yu,Xing Huang,Tong Bian,Run Shi,Yufei Zhao,Geoffrey I. N. Waterhouse,Li-Zhu Wu,Chen-Ho Tung,Tierui Zhang +9 more
TL;DR: A well-dispersed Co,N co-doped carbon nanoframework with hierarchically porous structure with comparable oxygen reduction reaction (ORR) catalytic activity to that of commercial Pt catalysts with the same loading is synthesized via a mesoporous-silica-protected calcination strategy.
Journal ArticleDOI
Mesoporous N-Doped Carbons Prepared with Thermally Removable Nanoparticle Templates: An Efficient Electrocatalyst for Oxygen Reduction Reaction
TL;DR: In this article, thermally removable nanoparticle templates were used for the fabrication of self-supported N-doped mesoporous carbons with a trace amount of Fe (Fe-N/C).
References
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Journal ArticleDOI
Nitrogen-doped carbon nanotube arrays with high electrocatalytic activity for oxygen reduction.
TL;DR: It is reported that vertically aligned nitrogen-containing carbon nanotubes (VA-NCNTs) can act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover effect than platinum for oxygen reduction in alkaline fuel cells.
Journal ArticleDOI
Co3O4 nanocrystals on graphene as a synergistic catalyst for oxygen reduction reaction
TL;DR: The Co₃O₄/N-doped graphene hybrid exhibits similar catalytic activity but superior stability to Pt in alkaline solutions, making it a high-performance non-precious metal-based bi-catalyst for both ORR and OER.
Journal ArticleDOI
High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
TL;DR: A family of non–precious metal catalysts that approach the performance of platinum-based systems at a cost sustainable for high-power fuel cell applications, possibly including automotive power.
Journal Article
High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
TL;DR: In this article, a family of non-precious metal catalysts that approach the performance of platinum-based systems at a cost sustainable for high-power fuel cell applications, possibly including automotive power.
Journal ArticleDOI
Iron-based catalysts with improved oxygen reduction activity in polymer electrolyte fuel cells.
TL;DR: In this paper, a microporous carbon-supported iron-based catalysts with active sites believed to contain iron cations coordinated by pyridinic nitrogen functionalities in the interstices of graphitic sheets within the micropores was produced.