In Situ Preparation of 2D Co-B Nanosheets@1D TiO2 Nanofibers as a Catalyst for Hydrogen Production from Sodium Borohydride

IF 3.1 4区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Inorganics Pub Date : 2023-08-18 DOI:10.3390/inorganics11080342
I. Maafa, N. Zouli, A. Abutaleb, A. Yousef, Isam Y. M. Qudsieh, S. Matar, A. S. M. Adam, M. M. El-Halwany
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Abstract

In this study, 2D Co-B nanosheet-decorated 1D TiO2 nanofibers (2D Co-B NS-decorated 1D TiO2 NFs) are synthesized via electrospinning and an in situ chemical reduction technique. The as-prepared catalyst showed excellent catalytic performance in H2 generation from sodium borohydride (SBH). When compared to naked Co-B nanoparticles, the catalytic activity of the 2D Co-B NS-decorated 1D TiO2 NFs catalyst for the hydrolysis of SBH is significantly enhanced, as demonstrated by the high hydrogen generation rate (HGR) of 6020 mL min−1 g−1 at 25 °C. The activation energy of hydrolysis was measured to be 30.87 kJ mol−1, which agreed with the reported values. The catalyst also showed good stability. Moreover, the effects of SBH, catalyst concentration, and temperature on the catalytic performance of 2D Co-B NS-decorated 1D TiO2 NFs were studied to gain a comprehensive understanding of the dehydrogenation mechanism of SBH. Based on these findings, we conclude that 2D Co-B NS-decorated 1D TiO2 NFs are effective catalytic materials for the dehydrogenation of SBH.
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二维Co-B Nanosheets@1D二氧化钛纳米纤维的原位制备及其在硼氢化钠制氢中的催化作用
在本研究中,通过静电纺丝和原位化学还原技术合成了二维Co-B纳米片修饰的一维TiO2纳米纤维(二维Co-B NS修饰的一维TiO2-NFs)。所制备的催化剂在硼氢化钠(SBH)制氢中表现出优异的催化性能。与裸露的Co-B纳米颗粒相比,2D Co-B NS修饰的1D TiO2 NFs催化剂对SBH水解的催化活性显著增强,如25°C下6020 mL min−1 g−1的高制氢率(HGR)所示。水解的活化能为30.87kJ mol−1,与报道值一致。催化剂也显示出良好的稳定性。此外,还研究了SBH、催化剂浓度和温度对2D Co-B NS修饰的1D TiO2 NFs催化性能的影响,以全面了解SBH的脱氢机理。基于这些发现,我们得出结论,2D Co-B NS修饰的1D TiO2 NFs是SBH脱氢的有效催化材料。
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来源期刊
Inorganics
Inorganics Chemistry-Inorganic Chemistry
CiteScore
2.80
自引率
10.30%
发文量
193
审稿时长
6 weeks
期刊介绍: Inorganics is an open access journal that covers all aspects of inorganic chemistry research. Topics include but are not limited to: synthesis and characterization of inorganic compounds, complexes and materials structure and bonding in inorganic molecular and solid state compounds spectroscopic, magnetic, physical and chemical properties of inorganic compounds chemical reactivity, physical properties and applications of inorganic compounds and materials mechanisms of inorganic reactions organometallic compounds inorganic cluster chemistry heterogenous and homogeneous catalytic reactions promoted by inorganic compounds thermodynamics and kinetics of significant new and known inorganic compounds supramolecular systems and coordination polymers bio-inorganic chemistry and applications of inorganic compounds in biological systems and medicine environmental and sustainable energy applications of inorganic compounds and materials MD
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