Metal free nitrogen doped hollow mesoporous graphene-analogous spheres as effective electrocatalyst for oxygen reduction reaction

Yan, Jing; Meng, Hui; Xie, Fangyan; Yuan, Xiaoli; Yu, Wendan; Lin, Worong; Ouyang, Wenpeng; Yuan, Dingsheng

doi:10.1016/j.jpowsour.2013.07.003

Cited by 87 publications

(46 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…34,35 Nitrogen adsorption-desorption isotherms of Fe 3+ -PDA@SiO 2 , Fe/N/C@SiO 2 -750, and Fe/N/C HNSs-750 are presented in Figure 3. [37][38][39] Figure 4A shows the survey spectra of Fe/N/C HNSs-750, revealing the presence of C, O and N (~2.7 at.%), as well as Fe (~10.6 at.%) in the catalyst. It is observed that Fe/N/C HNSs-750 has a mesoporous structure with pore size distribution centered at around 2, 9, and 44 nm, respectively, as shown in the insets of Figure 3.…”

Section: Preparation and Characterization Of Fe-containing Speciesandmentioning

confidence: 99%

Fe/N/C hollow nanospheres by Fe(iii)-dopamine complexation-assisted one-pot doping as nonprecious-metal electrocatalysts for oxygen reduction

et al. 2015

View full text Add to dashboard Cite

In this work, a series of hollow carbon nanospheres simultaneously doped with N and Fe-containing species are prepared by Fe(3+)-mediated polymerization of dopamine on SiO2 nanospheres, carbonization and subsequent KOH etching of the SiO2 template. The electrochemical properties of the hollow nanospheres as nonprecious-metal electrocatalysts for oxygen reduction reaction (ORR) are characterized. The results show that the hollow nanospheres with mesoporous N-doped carbon shells of ∼10 nm thickness and well-dispersed Fe3O4 nanoparticles prepared by annealing at 750 °C (Fe/N/C HNSs-750) exhibit remarkable ORR catalytic activity comparable to that of a commercial 20 wt% Pt/C catalyst, and high selectivity towards 4-electron reduction of O2 to H2O. Moreover, it displays better electrochemical durability and tolerance to methanol crossover effect in an alkaline medium than the Pt/C. The excellent catalytic performance of Fe/N/C HNSs-750 towards ORR can be ascribed to their high specific surface area, mesoporous morphology, homogeneous distribution of abundant active sites, high pyridinic nitrogen content, graphitic nitrogen and graphitic carbon, as well as the synergistic effect of nitrogen and iron species for catalyzing ORR.

show abstract

Section: Preparation and Characterization Of Fe-containing Speciesandmentioning

confidence: 99%

Fe/N/C hollow nanospheres by Fe(iii)-dopamine complexation-assisted one-pot doping as nonprecious-metal electrocatalysts for oxygen reduction

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Chargeedischarge measurements were done galvanostatically at 0.5e10 A g À1 over a voltage range of À1.1 to 0 V vs. SCE. Electrochemical impedance spectroscopy (EIS) was measured in a frequency range of 10 À3 e10 6 Hz at open circuit voltage with amplitude of 5 mV.…”

Section: Electrochemical Testsmentioning

confidence: 99%

Porous hollow carbon spheres for electrode material of supercapacitors and support material of dendritic Pt electrocatalyst

Fan

Liu

Huang

et al. 2015

Journal of Power Sources

View full text Add to dashboard Cite

“…1a, two broad diffraction peaks around 24 and 44 , which can be assigned to the (002) facet of disordered carbon phase and (101) facet of graphitized carbon [32]. Compared with the graphite peak, the intensity of the disordered peak was much stronger, suggesting that the sample was amorphous carbon.…”

Section: Negative Electrode Materialsmentioning

confidence: 99%

High performance supercapacitor based on Ni3S2/carbon nanofibers and carbon nanofibers electrodes derived from bacterial cellulose

Lin

Shao

et al. 2014

Journal of Power Sources

Self Cite

146

View full text Add to dashboard Cite

Metal free nitrogen doped hollow mesoporous graphene-analogous spheres as effective electrocatalyst for oxygen reduction reaction

Cited by 87 publications

References 33 publications

Fe/N/C hollow nanospheres by Fe(iii)-dopamine complexation-assisted one-pot doping as nonprecious-metal electrocatalysts for oxygen reduction

Fe/N/C hollow nanospheres by Fe(iii)-dopamine complexation-assisted one-pot doping as nonprecious-metal electrocatalysts for oxygen reduction

Porous hollow carbon spheres for electrode material of supercapacitors and support material of dendritic Pt electrocatalyst

High performance supercapacitor based on Ni3S2/carbon nanofibers and carbon nanofibers electrodes derived from bacterial cellulose

Contact Info

Product

Resources

About