首页|Hybrid TiNb oxides/nitrides nanotube arrays as active catalyst supports

Hybrid TiNb oxides/nitrides nanotube arrays as active catalyst supports

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? 2022 Elsevier B.V.In order to improve the thermal stability of anodized TiO2 nanotube arrays, this paper proposed to fabricate the hybrid TiNb oxide nanotube arrays (TiNb ONA) on β-phase TiNb alloy plates by anodic oxidation. Then, TiNb ONA precursors were transformed into conductive nitride nanotube arrays (TiNb NNA) by nitridation at 800 °C. Introducing Nb contributes to the higher structural stability and easier nitridation of TiNb ONA compared with TiO2 nanotube arrays. After that, the spinel CuFe2O4 and nanosized Re-Ni alloy were respectively loaded on TiNb ONA and TiNb NNA to form CuFe2O4/TiNb ONA and Re-Ni/ TiNb NNA composite electrodes, and their performances in the photoelectrochemical reduction of CO2 and hydrogen evolution reactions were assessed respectively. Results showed that the well-maintained TiNb ONA improved the photo-response performance of the thermally-synthesized CuFe2O4, and TiNb NNA support also boosted the hydrogen evolution reaction because of the conductivity and catalytic activity of TiNb nitrides.

Catalyst supportNanotube arraysTiNb alloyTiO2Transition metal nitrides

Zhang H.、Gao Y.、Zhang L.、Chen X.、Cao H.、Zheng G.

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College of Materials Science and Engineering Zhejiang University of Technology

2022

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN:0925-8388
年,卷(期):2022.914
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