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Nitrogen-doped hollow carbon spheres with highly graphitized mesoporous shell: Role of Fe for oxygen evolution reaction

Title
Nitrogen-doped hollow carbon spheres with highly graphitized mesoporous shell: Role of Fe for oxygen evolution reaction
Authors
Song, MY[Song, Min Young]Yang, DS[Yang, Dae-Soo]Singh, KP[Singh, Kiran Pal]Yuan, JL[Yuan, Jinliang]Yu, JS[Yu, Jong-Sung]
DGIST Authors
Song, MY[Song, Min Young]; Yang, DS[Yang, Dae-Soo]; Singh, KP[Singh, Kiran Pal]; Yu, JS[Yu, Jong-Sung]
Issue Date
2016-08-15
Citation
Applied Catalysis B: Environmental, 191, 202-208
Type
Article
Article Type
Article
Keywords
Doping (Additives)ElectrocatalystsElectrocatalyticGraphitizationGraphitized CarbonGraphitized CarbonsHigh-Efficient CatalystsHollow CarbonHollow Carbon SpheresIronMesoporous ShellNitrogenNitrogen-DopedOxygenOxygen Evolution ReactionSingle Precursors
ISSN
0926-3373
Abstract
There are many studies portraying iron (Fe) and nitrogen (N)-functionalzed carbon as an electrocatalyst along with possible elucidation of catalytically active sites. Despite continuous controversial debate on the active sites/species, the presence of N is believed to be undeniably needed for the efficient catalysis, whereas the necessity and role of Fe are still debated. To clearly understand the role of Fe in Fe and N-functionalized electrocatalyst, N-doped hollow mesoporous shell carbon (N-HMSC) is prepared as a uniform model electrocatalyst by a simple template nanocasting using Fe phthalocyanine (FePc) as a single precursor for carbon, N, and Fe. It is found that the presence of Fe in N-HMSC leads to the efficient graphitization of N-HMSC structure, which can be beneficial for electrocatalytic oxygen evolution reaction (OER). Interestingly, it is observed that Fe is a must for the preparation of high efficient catalyst, but may not be necessary for OER. © 2016 Elsevier B.V.
URI
http://hdl.handle.net/20.500.11750/2213
DOI
10.1016/j.apcatb.2016.03.031
Publisher
Elsevier B.V.
Related Researcher
  • Author Yu, Jong Sung Light, Salts and Water Research Group
  • Research Interests Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
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Collection:
ETC1. Journal Articles


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