Green Synthesis of Co3O4 Catalysts Using Jasmine Flower Extract for the Effective Hydrolysis of NaBH4

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2025-08-13 DOI:10.1007/s10562-025-05124-3

Ebtesam Hassan, Tarek T. Ali, Bahaa M. Abu-Zied

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Abstract

Green synthesis is an important route in the preparation of bare metals and metal oxides that provides cost-effective, eco-friendly, and highly efficient catalysts for catalyzing various reactions. In this paper we report, for the first time, the green synthesis of Co₃O₄ employing jasmine flower extract as a green precursor for the application as catalyst during NaBH₄ hydrolysis. Moreover, the role of calcination temperature (300–900 °C) on stability, morphology, texture, and catalytic performance of the formed Co₃O₄ have been addressed too. Co₃O₄ was found to be the major formed phase together with trace quantities of graphitic carbon over the 300–700 °C range. Pushing the calcination temperature to 900 °C was associated with a thermal reduction of Co₃O₄ to CoO and the elimination of the graphitic carbon. The highest activity was obtained using the 700 °C calcined catalyst (4449 ml g^− 1 min^− 1 at 45 °C).

Graphical Abstract

Representation of the green synthesis strategy followed during the synthesis of Co₃O₄ NPs and its application as a catalyst for the hydrogen generation via the hydrolysis of sodium borohydride

Abstract Image

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用茉莉花提取物绿色合成Co3O4催化剂以有效水解NaBH4

绿色合成是制备裸金属和金属氧化物的重要途径，为催化各种反应提供了经济、环保、高效的催化剂。本文首次报道了以茉莉花提取物为绿色前驱物在NaBH4水解过程中作为催化剂的绿色合成Co3O4。此外，还讨论了煅烧温度（300-900℃）对形成的Co3O4的稳定性、形貌、结构和催化性能的影响。在300 ~ 700℃范围内，形成的主要相为Co3O4和微量石墨碳。将煅烧温度提高到900℃，可使Co3O4热还原为CoO，并消除石墨碳。700℃煅烧催化剂（45℃时4449 ml g−1 min−1）的活性最高。图摘要：介绍了Co3O4 NPs的绿色合成策略及其作为硼氢化钠水解制氢催化剂的应用

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.