Oxygen evolution reaction over manganese oxides and the electrode-solution interface

被引：0

作者：

Zhu X. ^{[1
,2
]}

Li J. ^{[1
,2
]}

Li Y. ^{[1
]}

Yang H. ^{[1
,2
]}

Li X. ^{[2
]}

Liu J. ^{[2
]}

机构：

[1] Center for Hydrogen Energy and Environmental Catalysis, Dalian University of Pechnology, Dalian

[2] Laboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian

来源：

Huagong Xuebao/CIESC Journal | 2021年 / 72卷

关键词：

Electrode-solution interface; Gliding arc plasma; MnO [!sub]x[!/sub; Oxygen evolution reaction; TiO[!sub]2[!/sub;

D O I：

10.11949/0438-1157.20210441

中图分类号：

学科分类号：

摘要：

Oxygen evolution reaction (OER) is the rate-determining step for water electrolysis. Manganese oxides (MnO x ) possess five valence states, hence with multiple steps to reduce the activation energy, and semiconductor titanium dioxide (TiO2) exhibits corrosion resistance. Here we demonstrate OER performance over three catalysts, of MnOx synthesized by gliding arc plasma (pM) and commercial MnOx (cM), and commercial TiO2 (cT). Of non- Faradiac process, using ideal polarized electrode (IPE), it expresses the electrode-solution interface, hence reveals the association between triple phase boundary (TPB) and activity. It suggests that, the MnOx of pM shows better activity than cM. In alkali, the former has 180 mV lower potential vs RHE, and nearly half Tafel slope. In acid, both the MnO x catalysts show step-current polarization with similar activity. Moreover, cM shows higher activity than cT, e.g., 420 mV lower potential. The revealed solution resistance, Rs is consistent with activity. For the same catalyst, the fraction in voltage drop of capacitance fCd, is also in accordance with the activity in terms of ionomer to catalyst ratio (I/C), loading and single/double layer(s). However, for the varied catalysts, e.g., cM versus cT, or pM versus cM, the fCd is inconsistent with the activity, which might result from involving the non-Faradiac process of MnO x. © 2021, Editorial Board of CIESC Journal. All right reserved.

引用

页码：398 / 405

页数：7

共 31 条

[1] Rosen M A, Koohi-Fayegh S., The prospects for hydrogen as an energy carrier: an overview of hydrogen energy and hydrogen energy systems, Energy, Ecology and Environment, 1, 1, pp. 10-29, (2016)
[2] Chi J, Yu H M., Water electrolysis based on renewable energy for hydrogen production, Chinese Journal of Catalysis, 39, 3, pp. 390-394, (2018)
[3] Guo Y J, Li G D, Zhou J B, Et al., Comparison between hydrogen production by alkaline water electrolysis and hydrogen production by PEM electrolysis, IOP Conference Series: Earth and Environmental Science, 371, (2019)
[4] Kim J S, Kim B, Kim H, Et al., Recent progress on multimetal oxide catalysts for the oxygen evolution reaction, Advanced Energy Materials, 8, 11, (2018)
[5] Millet P, Mbemba N, Grigoriev S A, Et al., Electrochemical performances of PEM water electrolysis cells and perspectives, International Journal of Hydrogen Energy, 36, 6, pp. 4134-4142, (2011)
[6] Suen N T, Hung S F, Quan Q, Et al., Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives, Chemical Society Reviews, 46, 2, pp. 337-365, (2017)
[7] Shi Z P, Wang X, Ge J J, Et al., Fundamental understanding of the acidic oxygen evolution reaction: mechanism study and state-of-the-art catalysts, Nanoscale, 12, 25, pp. 13249-13275, (2020)
[8] Sun W, Zhou Z H, Zaman W Q, Et al., Rational manipulation of IrO2 lattice strain on α-MnO2 nanorods as a highly efficient water-splitting catalyst, ACS Applied Materials & Interfaces, 9, 48, pp. 41855-41862, (2017)
[9] Browne M P, Nolan H, Duesberg G S, Et al., Low-overpotential high-activity mixed manganese and ruthenium oxide electrocatalysts for oxygen evolution reaction in alkaline media, ACS Catalysis, 6, 4, pp. 2408-2415, (2016)
[10] Browne M P, Nolan H, Twamley B, Et al., Thermally prepared Mn2O3/RuO2/Ru thin films as highly active catalysts for the oxygen evolution reaction in alkaline media, ChemElectroChem, 3, 11, pp. 1847-1855, (2016)

← 1 2 3 4 →