Chinese Journal of Catalysis ›› 2022, Vol. 43 ›› Issue (4): 1123-1130.DOI: 10.1016/S1872-2067(21)63937-2
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Xueqing Gaoa, Xiaomeng Liub, Shujiao Yanga, Wei Zhanga,*(), Haiping Linb,c,#(
), Rui Caoa,$(
)
Received:
2021-07-14
Accepted:
2021-07-14
Online:
2022-03-05
Published:
2022-03-01
Contact:
Wei Zhang, Haiping Lin, Rui Cao
Supported by:
Xueqing Gao, Xiaomeng Liu, Shujiao Yang, Wei Zhang, Haiping Lin, Rui Cao. Black phosphorus incorporated cobalt oxide: Biomimetic channels for electrocatalytic water oxidation[J]. Chinese Journal of Catalysis, 2022, 43(4): 1123-1130.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(21)63937-2
Fig. 1. Illustration of biomimetic channels in CoO-BP-RGO. Electron and proton transfers in natural PSII (a) and artificial CoO-BP-RGO electrocatalyst (b).
Fig. 4. SEM (a) and TEM (b?e) images of CoO-BP-RGO; The corresponding HAADF STEM image (f) and EDX mapping (g) and line scanning patterns (h) of CoO-BP-RGO.
Fig. 6. Electrocatalytic water oxidation performances. (a) LSV polarization curves of CoO-BP-RGO, CoO-RGO, CoO-BP and BP samples; (b) The overpotentials required for j = 10 and 100 mA cm?2with different samples; (c) Tafel plots for OER of the samples; (d) Multi-current chronopotentiometry of CoO-BP-RGO with current densities from 40 to 700 mA cm?2at current ramps of 60 mA cm?2per step without iR compensation.
Fig. 7. Computational calculation of CoO-BP-RGO. The calculated free energy diagrams of OER on P-O functionalized hydroxylated CoO(100) surface. Co, H, P, lattice O and O from solution are represented with blue, white, pink, red and orange spheres, respectively.
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