Construction of Core–Shell Nanowire Arrays in a Cu–Cu2O Film Electrode for High Efficiency in Heat Dissipation

Due to their high performance, photoelectrochemical ultraviolet (UV) photodetectors have attracted much attention, but the recombination of photogenerated electrons at the interface of photoanode/electrolyte limited further improvement of photoelectrochemical UV photodetectors (PEC UVPDs). Modification of TiO2 photoanode by SrTiO3 could improve the performance of UVPD, because the energy barrier that is established at the TiO2–SrTiO3 interface could accelerate the separation of the photogenerated electrons-holes pair. However, the recombination center that is caused by the preparation of TiO2@SrTiO3 core-shell heterostructured nanostructure decreases the performance of PEC UVPDs, which is still an important problem that hindered its application in PEC UVPDs. In this paper, we presented a Sr-doped free TiO2@SrTiO3 core-shell heterostructured nanowire arrays as a photoanode for the self-powered PEC UVPD. This will not only accelerate the separation of the photogenerated electrons-holes pair, but it will also reduce the recombination of photogenerated electron-hole pairs in the photoanode. The intrinsic effect of SrTiO3 reaction time on the J variations of UVPDs is investigated in detail. An impressive responsivity of 0.358 A W−1 was achieved at 360 nm for the UVPD based on TiO2@SrTiO3 core-shell heterostructured nanowire arrays, which heretofore is a considerably high photoresponsivity for self-powered photoelectrochemical UVPDs. Additionally, this UVPD also exhibits a high on/off ratio, fast response time, excellent visible-blind characteristic, and linear optical signal response.

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Shaggy-like Ru-clusters decorated core-shell metal-organic framework-derived CoOx@NPC as high-efficiency catalyst for NaBH4 hydrolysis

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.12.011 ◽

2021 ◽

Vol 46 (11) ◽

pp. 7772-7781 ◽

Cited By ~ 1

Author(s):

Shasha Dou ◽

Wanyu Zhang ◽

Yuting Yang ◽

Shuqing Zhou ◽

Xianfa Rao ◽

...

Keyword(s):

High Efficiency ◽

Metal Organic Framework ◽

Core Shell ◽

Metal Organic ◽

Organic Framework

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Hexagonal petal-like cobalt oxide nanowire arrays encapsulated by MOF-derived Co/N-codoped carbon for boosting electrochemical capacitor behaviour

Materials Chemistry Frontiers ◽

10.1039/d1qm00429h ◽

2021 ◽

Author(s):

Xiao-Man Cao ◽

Zhi-Jia Sun ◽

Zheng-Bo Han

Keyword(s):

Cobalt Oxide ◽

Rate Capability ◽

Electrochemical Capacitor ◽

Nanowire Arrays ◽

Core Shell ◽

Unique Structure ◽

Good Rate Capability

A novel core–shell hetero-structured electrode (NF@CoO@Co/N–C) is designed and synthesized via a “anchor-etch-calcine” process for boosting electrochemical capacitor behaviour. The unique structure endows NF@CoO@Co/N–C with ultrahigh areal capacitances and good rate capability.

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Synergized Cu/Pb Core/Shell Electrocatalyst for High-Efficiency CO2 Reduction to C2+ Liquids

ACS Nano ◽

10.1021/acsnano.0c07869 ◽

2020 ◽

Author(s):

Pengtang Wang ◽

Hao Yang ◽

Yong Xu ◽

Xiaoqing Huang ◽

Juan Wang ◽

...

Keyword(s):

High Efficiency ◽

Co2 Reduction ◽

Core Shell

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Design the PdCu/TaN C electrocatalyst with core-shell structure having high efficiency for methanol and formic acid oxidation reactions

Electrochimica Acta ◽

10.1016/j.electacta.2021.138365 ◽

2021 ◽

Vol 383 ◽

pp. 138365

Author(s):

Na Ye ◽

Yanxin Bai ◽

Zhao Jiang ◽

Tao Fang

Keyword(s):

Formic Acid ◽

Shell Structure ◽

High Efficiency ◽

Formic Acid Oxidation ◽

Acid Oxidation ◽

Core Shell ◽

Oxidation Reactions ◽

Core Shell Structure

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Fabrication of copper(II)-coated magnetic core-shell nanoparticles Fe3O4@SiO2-2-aminobenzohydrazide and investigation of its catalytic application in the synthesis of 1,2,3-triazole compounds

Scientific Reports ◽

10.1038/s41598-021-81632-7 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

H. Rajabi-Moghaddam ◽

M. R. Naimi-Jamal ◽

M. Tajbakhsh

Keyword(s):

High Efficiency ◽

Click Reaction ◽

Magnetic Core ◽

Core Shell ◽

Isatoic Anhydride ◽

Shell Nanoparticles ◽

Triazole Derivatives ◽

Catalytic Application ◽

Ft Ir ◽

Core Shell Nanoparticles

AbstractIn the present work, an attempt has been made to synthesize the 1,2,3-triazole derivatives resulting from the click reaction, in a mild and green environment using the new copper(II)-coated magnetic core–shell nanoparticles Fe3O4@SiO2 modified by isatoic anhydride. The structure of the catalyst has been determined by XRD, FE-SEM, TGA, VSM, EDS, and FT-IR analyzes. The high efficiency and the ability to be recovered and reused for at least up to 6 consecutive runs are some superior properties of the catalyst.

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