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
Citations
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Active sites of nitrogen-doped carbon materials for oxygen reduction reaction clarified using model catalysts
TL;DR: In this paper, the oxygen reduction reaction (ORR) active site was characterized by using newly designed graphite (highly oriented pyrolitic graphite) model catalysts with well-defined π conjugation and well-controlled doping of N species.
Journal ArticleDOI
Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels.
TL;DR: Various cocatalysts, such as the biomimetic, metal-based,Metal-free, and multifunctional ones, and their selectivity for CO2 photoreduction are summarized and discussed, along with the recent advances in this area.
Journal ArticleDOI
Emerging Two-Dimensional Nanomaterials for Electrocatalysis
Huanyu Jin,Chunxian Guo,Xin Liu,Jinlong Liu,Anthony Vasileff,Yan Jiao,Yao Zheng,Shi-Zhang Qiao +7 more
TL;DR: The fundamental relationships between electronic structure, adsorption energy, and apparent activity for a wide variety of 2D electrocatalysts are described with the goal of providing a better understanding of these emerging nanomaterials at the atomic level.
Journal ArticleDOI
Defect Chemistry of Nonprecious-Metal Electrocatalysts for Oxygen Reactions
TL;DR: The recent development of this concept is reviewed here and a novel principle for the design of oxygen electrocatalysts is proposed and an overview of the defects in carbon-based, metal-free electrocatalysis for ORR and various defects in metal oxides/selenides for OER is provided.
Structural (n,m) determination of isolated single wall carbon nanotubes by resonant Raman scattering
Mildred S. Dresselhaus,Ado Jorio,G. Dresselhaus,Martin Hunter,T. McClure,Jason H. Hafner,Charles M. Lieber,Riichiro Saito +7 more
TL;DR: In this paper, a unique chirality assignment was made for both metallic and semiconducting nanotubes of diameter d(t), using the parameters gamma(0) = 2.9 eV and omega(RBM) = 248/d(t).
References
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Journal ArticleDOI
Nitrogen doping effects on the structure of graphene
Dongsheng Geng,Songlan Yang,Yong Zhang,Jinli Yang,Jian Liu,Ruying Li,Tsun-Kong Sham,Xueliang Sun,Siyu Ye,Shanna Knights +9 more
TL;DR: In this article, the effect of nitrogen doping on the structure of graphene has been systematically investigated by various characterization techniques such as SEM, TEM, BET, Raman and XRD analysis were used to distinguish the difference of the microstructures; and FT-IR, XPS, especially XANES were performed to elucidate the bonding information such as C-N.
Edge-Selectively Sulfurized Graphene Nanoplatelets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction
TL;DR: The resultant edge-selectively sulfurized graphene nanoplatelets exhibit remarkable electrocatalytic activity toward ORR with better tolerance to methanol crossover/CO poisoning effects and longer-term stability than those of pristine graphite and commercial Pt/C Electrocatalysts.
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Carbon Alloy Catalysts: Active Sites for Oxygen Reduction Reaction
TL;DR: In this article, the authors inspect possible oxygen adsorption and reduction processes on various models for the exposed edges of carbon-based catalysts and show that carbon alloys with N dopants at specific sites can exhibit metal-free catalytic activity.
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X-ray absorption analysis of nitrogen contribution to oxygen reduction reaction in carbon alloy cathode catalysts for polymer electrolyte fuel cells
Hideharu Niwa,Koji Horiba,Yoshihisa Harada,Masaharu Oshima,Takashi Ikeda,Kiyoyuki Terakura,Jun-ichi Ozaki,Seizo Miyata +7 more
TL;DR: In this article, the electronic structure of nitrogen introduced into various carbon-based cathode catalysts for the polymer electrolyte fuel cell (PEFC) was investigated using X-ray absorption spectroscopy (XAS).
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Nitrogen doping in carbon nanotubes.
TL;DR: An extensive review of the current state of the art in nitrogen doping of carbon nanotubes, including synthesis techniques, and comparison with nitrogen doped carbon thin films and azofullerenes is presented.