High-efficiency photocathodic protection performance of novel MnIn2S4/TiO2 n-n heterojunction films for Q235 carbon steel in chloride-containing simulated concrete pore solution

Wang, Wencheng; Ye, Yujiao; Li, Guyuan; Yang, Zhengxian; Duan, Jizhou; Sun, Jun; Yan, Yueqian

doi:10.1016/j.jallcom.2023.168957

Cited by 7 publications

(2 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, according to the Bode phase angle plots of the photoelectrode samples under illumination, the lifetime of photogenerated electrons ( τ ) can be obtained through the following Equation (1):

where

represents the characteristic peak frequency at low frequency, which is the frequency value (Hz) corresponding to the first peak [ 31 , 32 ]. As shown in Figure 5 d, the values of

for PT(3)/IS composite photoelectrodes are smaller than those of pure photoelectrodes and the other PT/IS composite photoelectrodes.…”

Section: Resultsmentioning

confidence: 99%

“…where f max represents the characteristic peak frequency at low frequency, which is the frequency value (Hz) corresponding to the first peak [31,32]. As shown in Figure 5d, the values of f max for PT(3)/IS composite photoelectrodes are smaller than those of pure photoelectrodes and the other PT/IS composite photoelectrodes.…”

Section: The Influence Of Heterojunction Structure On Pt/is With Mixe...mentioning

confidence: 92%

See 1 more Smart Citation

In2S3@TiO2/In2S3 Z-Scheme Heterojunction with Synergistic Effect for Enhanced Photocathodic Protection of Steel

Chang,

Suo,

Wang

et al. 2023

Molecules

View full text Add to dashboard Cite

In this work, a TiO2/In2S3 heterojunction film was successfully synthesized using a one-step hydrothermal method and applied in the photocathodic protection (PCP) of 304SS. The octahedral In2S3 and In2S3@TiO2 nanoparticles combined and coexisted with each other, with In2S3 quantum dots growing on the surface of TiO2 to form In2S3@TiO2 with a wrapping structure. The composite photoelectrode, which includes TiO2 with a mixed crystalline phase and In2S3, exhibited significantly enhanced PCP performance for 304SS compared with pure In2S3 and TiO2. The In2S3@TiO2/In2S3 composites with 0.3 g of P25 titanium dioxide (P25) showed the best protection performance, resulting in a cathodic shift of its OCP coupled with 304SS to −0.664 VAgCl. The electron transfer tracking results demonstrate that In2S3@TiO2/In2S3 forms a Z-scheme heterojunction structure. The enhanced PCP performance could be attributed to the synergistic effect of the mixed crystalline phase and the Z-scheme heterojunction system. The mixed crystalline phase of TiO2 provides more electrons, and these electrons are gathered at higher energy potentials in the Z-scheme system. Additionally, the built-in electric field further promotes the more effective electrons transfer from photoelectrode to the protected metals, thus, leading to enhanced photoelectrochemical cathodic protection of 304SS.

show abstract

where

represents the characteristic peak frequency at low frequency, which is the frequency value (Hz) corresponding to the first peak [ 31 , 32 ]. As shown in Figure 5 d, the values of

for PT(3)/IS composite photoelectrodes are smaller than those of pure photoelectrodes and the other PT/IS composite photoelectrodes.…”

Section: Resultsmentioning

confidence: 99%

Section: The Influence Of Heterojunction Structure On Pt/is With Mixe...mentioning

confidence: 92%

In2S3@TiO2/In2S3 Z-Scheme Heterojunction with Synergistic Effect for Enhanced Photocathodic Protection of Steel

Chang,

Suo,

Wang

et al. 2023

Molecules

View full text Add to dashboard Cite

show abstract

Incorporation of TiO2 nanoparticles in CoWP coating for improved wear and corrosion resistance via electrodeposition

Xing

Chen

2023

International Journal of Electrochemical Science

View full text Add to dashboard Cite

Electroless deposition of NiMoP coating on Q235B steel and its corrosion resistance in simulated concrete pore solution

Wang¹,

Chen²,

Zhang³

2023

International Journal of Electrochemical Science

View full text Add to dashboard Cite

High-efficiency photocathodic protection performance of novel MnIn2S4/TiO2 n-n heterojunction films for Q235 carbon steel in chloride-containing simulated concrete pore solution

Cited by 7 publications

References 50 publications

In2S3@TiO2/In2S3 Z-Scheme Heterojunction with Synergistic Effect for Enhanced Photocathodic Protection of Steel

In2S3@TiO2/In2S3 Z-Scheme Heterojunction with Synergistic Effect for Enhanced Photocathodic Protection of Steel

Incorporation of TiO2 nanoparticles in CoWP coating for improved wear and corrosion resistance via electrodeposition

Electroless deposition of NiMoP coating on Q235B steel and its corrosion resistance in simulated concrete pore solution

Contact Info

Product

Resources

About