Self‐Assembly of Spinel Nanocrystals into Mesoporous Spheres as Bifunctionally Active Oxygen Reduction and Evolution Electrocatalysts

Dong Un Lee; Jingde Li; Min Ho Seo; Wook Ahn; Ian Stadelmann; Luis Ricardez‐Sandoval; Zhongwei Chen

doi:10.1002/cssc.201700369

journal article Apr 24, 2017

Self‐Assembly of Spinel Nanocrystals into Mesoporous Spheres as Bifunctionally Active Oxygen Reduction and Evolution Electrocatalysts

Dong Un Lee

Jingde Li

Min Ho Seo

Wook Ahn

Ian Stadelmann Luis Ricardez‐Sandoval Zhongwei Chen

ChemSusChem Vol. 10 No. 10 pp. 2258-2266 · Wiley

View at Publisher Save 10.1002/cssc.201700369

Abstract

AbstractThe present work introduces spinel oxide nanocrystals self‐assembled into mesoporous spheres that are bifunctionally active towards catalyzing both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). The electrochemical evaluation reveals that (Ni,Co)3O4 demonstrates a significantly positive‐shifted ORR onset and half‐wave potentials [−0.127 and −0.292 V vs. saturated calomel electrode (SCE), respectively], whereas Co3O4 results in a negative‐shifted OER potential (0.65 V vs. SCE) measured at 10 mA cm−2. Based on the DFT analysis, the potential at which all oxygen intermediate reactions proceed spontaneously is the highest for (Ni,Co)3O4 (U=0.66 eV) during ORR, whereas it is the lowest for Co3O4 (U=2.09 eV) during OER. The high ORR activity of (Ni,Co)3O4 is attributed to the enhanced electrical conductivity of the spinel lattice, and the high OER activity of Co3O4 is attributed to relatively weak adsorption energy promoting rapid release of evolved oxygen.

Topics

No keywords indexed for this article. Browse by subject →

References

56

[1]

[2]

10.1149/2.062310jes

[3]

10.1002/aenm.201000010

[4]

10.1039/c1cs15228a

[5]

10.1002/aenm.201301389

[6]

10.1039/c6ta00173d

[7]

[8]

10.1021/am507470f

[9]

10.1016/j.nanoen.2014.09.009

[10]

10.1016/j.elecom.2014.03.020

[11]

[12]

10.1039/c5cc09173j

[13]

10.1039/c3ta01402a

[14]

[15]

10.1039/c3ta11917c

[16]

10.1021/ja5009954

[17]

[18]

10.1002/adfm.201401264

[19]

10.1016/j.nanoen.2012.09.002

[20]

A metal–organic framework-derived bifunctional oxygen electrocatalyst

Bao Yu Xia, Ya Yan, Nan Li et al.

Nature Energy 10.1038/nenergy.2015.6

[21]

[22]

10.1021/nl2044327

[23]

Core-shell carbon materials derived from metal-organic frameworks as an efficient oxygen bifunctional electrocatalyst

Zheng Wang, Yizhong Lu, Ya Yan et al.

Nano Energy 10.1016/j.nanoen.2016.10.017

[24]

10.1021/jacs.6b10307

[25]

10.1002/cssc.201500609

[26]

10.1021/cg8003068

[27]

10.1002/smll.201600051

[28]

[29]

10.1016/s0360-3199(00)00033-1

[30]

10.1021/am404862v

[31]

Synthesis and Characterization of Cobalt Hydroxide, Cobalt Oxyhydroxide, and Cobalt Oxide Nanodiscs

Jing Yang, Hongwei Liu, Wayde N. Martens et al.

The Journal of Physical Chemistry C 10.1021/jp908548f

[32]

10.1016/s1452-3981(23)15306-5

[33]

10.1021/jz501077u

[34]

10.1021/acscatal.5b00114

[35]

[36]

10.1002/adma.201504024

[37]

Benchmarking Heterogeneous Electrocatalysts for the Oxygen Evolution Reaction

Charles C. L. McCrory, Suho Jung, Jonas C. Peters et al.

Journal of the American Chemical Society 10.1021/ja407115p

[38]

10.1021/cm3012205

[39]

10.1002/adma.200903896

[40]

Alloys of platinum and early transition metals as oxygen reduction electrocatalysts

J. Greeley, I. E. L. Stephens, A. S. Bondarenko et al.

Nature Chemistry 10.1038/nchem.367

[41]

10.1088/0953-8984/3/35/005

[42]

Generalized Gradient Approximation Made Simple

John P. Perdew, Kieron Burke, Matthias Ernzerhof

Physical Review Letters 10.1103/physrevlett.77.3865

[43]

[44]

10.1021/acs.nanolett.5b00367

[45]

10.1021/ja030392k

[46]

10.1016/0021-9991(92)90277-6

[47]

[48]

10.1016/j.cplett.2015.09.030

[49]

10.1021/jp402421q

[50]

10.1039/c3cp54376e

Showing 50 of 56 references

Cited By

29

Bifunctional ligand Co metal-organic framework derived heterostructured Co-based nanocomposites as oxygen electrocatalysts toward rechargeable zinc-air batteries

Xiaoying Xie, Zeyu Zhai · 2024

Journal of Colloid and Interface Sc...

Metrics

29

Citations

56

References

Details

Published: Apr 24, 2017
Vol/Issue: 10(10)
Pages: 2258-2266
License: View

Authors

D

Dong Un Lee