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Nitrogen-doped hollow carbon spheres with highly graphitized mesoporous shell: Role of Fe for oxygen evolution reaction
- Nitrogen-doped hollow carbon spheres with highly graphitized mesoporous shell: Role of Fe for oxygen evolution reaction
- Song, Min Young; Yang, Dae-Soo; Singh, Kiran Pal; Yuan, Jinliang; Yu, Jong-Sung
- DGIST Authors
- Yu, Jong-Sung
- Issue Date
- Applied Catalysis B: Environmental, 191, 202-208
- Article Type
- Doping (Additives); Electrocatalysts; Electrocatalytic; Graphitization; Graphitized Carbon; Graphitized Carbons; High-Efficient Catalysts; Hollow Carbon; Hollow Carbon Spheres; Iron; Mesoporous Shell; Nitrogen; Nitrogen-Doped; Oxygen; Oxygen Evolution Reaction; Single Precursors
- 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.
- Elsevier B.V.
- Related Researcher
Yu, Jong Sung
Light, Salts and Water Research Group
Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
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- Department of Energy Science and EngineeringLight, Salts and Water Research Group1. Journal Articles
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