Synthesis and Comparative Catalytic Performance of Tin and Nickel Based Heteropolyacid Salts

IF 2.5 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2026-07-15 DOI:10.1007/s10562-026-05476-4

Poonam Rani, Nadeem Sharma, Harish Kumar Sharma, Suchi Sharma

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Abstract

Fundamental and special qualities of heteropolyacid salts (Polyoxometalate) make them suitable for the design of solid heterogeneous catalysts at atomic and molecular levels. Here in the current study, two cerium-based heteropolyacid (HPA) salts, incorporated with nickel/tin salts of lacunary Keggin-type heteropoly acids, have been synthesized by the precipitation method and used as a catalyst in the alkylation reaction. These two salts Cerium (III) tintungstophosphate (CeSnWP) and Cerium (III) nickeltungstophosphate (CeNiWP) are characterized by various instrumental techniques for their elemental, morphological, spectral, and stability properties by using FTIR, UV, SEM, XRD, EDS, BET, and TGA techniques. All these analyses confirm the various characteristics of semi-crystalline HPA salts with appreciable surface area (CeNiWP salt-220.058 and, in the case of CeSnWP 154.002 m²/g) capable of supporting a reaction as a catalyst. Additionally, the pore volume of CeNiWP was calculated to be 0.063 cc/g, and CeSnWP had a pore volume of 0.331 cc/g. These salts, along with some previously synthesized salts, were utilized in the alkylation of toluene with benzyl chloride to evaluate and compare their catalytic efficiency.

Graphical abstract

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锡基和镍基杂多酸盐的合成及其催化性能比较

杂多酸盐（多金属氧酸盐）的基本和特殊性质使其适合于在原子和分子水平上设计固体非均相催化剂。本研究采用沉淀法合成了两种铈基杂多酸盐，并与空腔keggin型杂多酸的镍/锡盐结合，作为烷基化反应的催化剂。采用FTIR、UV、SEM、XRD、EDS、BET和TGA等技术对这两种盐进行了元素、形态、光谱和稳定性等方面的表征。所有这些分析都证实了具有可观表面积的半结晶HPA盐的各种特性（CeNiWP盐-220.058，CeSnWP盐为154.002 m2/g），能够作为催化剂支持反应。计算出CeNiWP的孔隙体积为0.063 cc/g， CeSnWP的孔隙体积为0.331 cc/g。这些盐与一些先前合成的盐一起用于甲苯与氯化苄的烷基化，以评估和比较它们的催化效率。图形抽象

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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.