Journal ArticleDOI
Metal-free catalysts for oxygen reduction reaction.
TLDR
This paper presents a probabilistic procedure for estimating the polymethine content of carbon dioxide using a straightforward two-step procedure, and shows good results in both the stationary and the liquid phase.Abstract:
Liming Dai,*,†,‡ Yuhua Xue,†,‡ Liangti Qu,* Hyun-Jung Choi, and Jong-Beom Baek* †Center of Advanced Science and Engineering for Carbon (Case4Carbon), Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry, School of Science, Beijing Institute of Technology, Beijing 100081, People’s Republic of China School of Energy and Chemical Engineering/Center for Dimension-Controllable Covalent Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon, Ulsan, 689-798, South Korearead more
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Defective carbon-based materials: controllable synthesis and electrochemical applications
TL;DR: In this paper, the authors provide a comprehensive overview and perspective on the critical issues and possible solutions regarding the controllable synthesis of carbon-based materials, with special emphasis on the theoretical guidance in designing complex carbon defect structures and operando characterizations in exploring "dynamic" active centers.
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Porous carbon framework derived from N-rich hypercrosslinked polymer as the efficient metal-free electrocatalyst for oxygen reduction reaction.
TL;DR: The creation of new metal-free porous carbon framework catalysts derived from N-rich hypercrosslinked polymers using pyrrole as building blocks for oxygen reduction reaction (ORR) (denoted as PCF-HCPs) shows a favorable 4-electron transfer process and may open a new possibility for design of ORRMetal-free catalyst of fuel-cell technologies.
Journal ArticleDOI
Iron Sulfide Nanoparticles Embedded Into a Nitrogen and Sulfur Co-doped Carbon Sphere as a Highly Active Oxygen Reduction Electrocatalyst.
TL;DR: A promising oxygen electrocatalyst comprising iron sulfide nanoparticles embedded into a nitrogen and sulfur co-doped carbon sphere (Fe1−xS/NS-CS) is successfully explored through a simple and fast polymerization between methylolmelamines and ammonium ferric citrate as well as a high-temperature vulcanization process.
Journal ArticleDOI
Nanoscale Electrocatalysis of Hydrazine Electro-Oxidation at Blistered Graphite Electrodes
TL;DR: The capability of electrochemistry to tailor the surface structure of graphite and presents a new electrocatalyst for hydrazine electro-oxidation are highlighted.
Journal ArticleDOI
Illustrating the Role of Quaternary-N of BINOL Covalent Triazine-Based Frameworks in Oxygen Reduction and Hydrogen Evolution Reactions.
Himanshu Sekhar Jena,Chidharth Krishnaraj,Shaikh Parwaiz,Florence Lecoeuvre,Johannes Schmidt,Debabrata Pradhan,Pascal Van Der Voort +6 more
TL;DR: It is shown that the ORR and HER reactivity of CTF-based materials depends exclusively on the amount of qua-ternary-N species and on the available surface area and pore volume, which highlights the engineering of C TF materials with varying amount of N-species as high performance bifunctional electrocatalysts.
References
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Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
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Helical microtubules of graphitic carbon
TL;DR: Iijima et al. as mentioned in this paper reported the preparation of a new type of finite carbon structure consisting of needle-like tubes, which were produced using an arc-discharge evaporation method similar to that used for fullerene synthesis.
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The rise of graphene
TL;DR: Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
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Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
TL;DR: Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.