Journal of the Indian Chemical Society最新文献_第3页

Facile preparation and green synthesis of Ni/BiVO4 sensor for room temperature NH3 sensing

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-04-03 DOI: 10.1016/j.jics.2025.101700

Humaira Seema , Sidra Zaman , Muhammad Zahid , Zaiba Zafar , Takashiro Akitsu

{"title":"Facile preparation and green synthesis of Ni/BiVO4 sensor for room temperature NH3 sensing","authors":"Humaira Seema , Sidra Zaman , Muhammad Zahid , Zaiba Zafar , Takashiro Akitsu","doi":"10.1016/j.jics.2025.101700","DOIUrl":"10.1016/j.jics.2025.101700","url":null,"abstract":"<div><div>Ammonia (NH₃), a toxic gas, requires highly sensitive detection even at low concentrations. In this study, nickel oxide nanoparticles (NiO NPs) were synthesized via a green chemistry approach using Tagetes patula leaf extract, with an optimal precursor-to-extract ratio of 1:4 determined by UV-Vis spectroscopy. Sunlight was identified as the most effective synthesis condition. Bismuth vanadate (BiVO₄) NPs were prepared via a solvothermal method, while the BiVO₄–NiO nanocomposite was fabricated using a hydrothermal approach. The materials were thoroughly characterized using energy-dispersive X-ray spectroscopy (EDX), UV-Vis spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD). The NiO–BiVO₄-based gas sensor exhibited superior sensitivity toward NH₃ compared to acetone and ethanol, with an exceptional response of 97% at 136 ppm. The sensor demonstrated rapid response and recovery times (20 s and 80 s, respectively), a low detection limit of 8 ppm, and outstanding repeatability, long-term stability, and selectivity. These results highlight the potential of the BiVO₄–NiO nanocomposite for advanced gas-sensing applications.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 6","pages":"Article 101700"},"PeriodicalIF":3.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Superior electrochemical performance of a coin cell based on MgCo2O4@ air plasma exposed ELAC for magnesium batteries and supercapacitors

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-04-01 DOI: 10.1016/j.jics.2025.101698

T. Judith fennila, K.A. Vijayalakshmi

{"title":"Superior electrochemical performance of a coin cell based on MgCo2O4@ air plasma exposed ELAC for magnesium batteries and supercapacitors","authors":"T. Judith fennila, K.A. Vijayalakshmi","doi":"10.1016/j.jics.2025.101698","DOIUrl":"10.1016/j.jics.2025.101698","url":null,"abstract":"<div><div>Composite materials have been growing in prominence in the field of electrochemical studies in recent years. This study emphasizes its core use as an electrode cathode material while exploring its many uses in different electrochemical systems. The key element of the composite material is the air plasma treated activated carbon from eucalyptus leaves that has been incorporated with purely synthesized MgCo<sub>2</sub>O<sub>4</sub> which makes the Nano composites. Following the air plasma treatment, the EL activated carbon improves the material's wettability, adhesion, and conductivity. The combination of APT ELAC + pure MgCo<sub>2</sub>O<sub>4</sub>. Using XRD, FESEM, BET, and XPS analyses were used to characterize the phase analysis, structural morphology, surface area, and chemical composition of the as-prepared composite material. The paper discusses the electrochemical results of the composite material for the cathode electrode material's both diffusive and capacitive behavior. When APT ELAC is coupled with pure MgCo<sub>2</sub>O<sub>4</sub>, a high specific capacitance of 1670 Fg<sup>-1</sup> at a current density of 0.3mAg<sup>−1</sup>. The cyclic stability is 94 % pertains for 3000 cycles. Therefore, the designed device's excellent performance, sustainability, and pivotal role in technological advancement highlights their fundamental features in molding the future of energy storage and providing a route towards a more efficient and environmentally friendly future.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 6","pages":"Article 101698"},"PeriodicalIF":3.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of 1,3-thiazolidin-4-one based compounds: Design, synthesis, biological evaluation, molecular modeling and ADME studies

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-04-01 DOI: 10.1016/j.jics.2025.101693

Nadia A.A. Elkanzi , Rania B. Bakr

{"title":"Optimization of 1,3-thiazolidin-4-one based compounds: Design, synthesis, biological evaluation, molecular modeling and ADME studies","authors":"Nadia A.A. Elkanzi , Rania B. Bakr","doi":"10.1016/j.jics.2025.101693","DOIUrl":"10.1016/j.jics.2025.101693","url":null,"abstract":"<div><div>A series of thiazolidinone derivatives (<strong>5a-f</strong>) was constructed and the structure of these compounds was elucidated by IR, <sup>1</sup>H NMR, <sup>13</sup>C NMR, and elemental analyses. The prepared compounds were assessed for their antimicrobial and antioxidant potential. The obtained results from antimicrobial screening revealed that 2-hydroxy-4-(2-(4-nitrophenyl)-4-oxothiazolidin-3-yl)benzoic acid <strong>(5b)</strong> and 2-hydroxy-4-(2-(4-hydroxyphenyl)-4-oxothiazolidin-3-yl) benzoic acid <strong>(5c)</strong> were the most active against all tested bacterial species (ZI = 29–42 mm; MIC = 75–128 μg/mL) and were more active than ampicillin (ZI = 26–30 mm; MIC = 100–150 μg/mL). Regarding antioxidant activity, thiazolidinone derivatives <strong>5c</strong> (IC<sub>50</sub> = 20.43 μg/mL), <strong>5e</strong> (IC<sub>50</sub> = 21.06 μg/mL), and <strong>5f</strong> (IC<sub>50</sub> = 22.18 μg/mL) were the most active compounds in comparison to the reference drug ascorbic acid (IC<sub>50</sub> = 17.13 μg/mL). A docking study of the thiazolidinone derivatives <strong>5a-f</strong> inside the DNA gyrase active site was conducted in an attempt to predict the binding modes of these compounds. All the docked candidates <strong>5a-f</strong> recorded high binding score forming hydrogen bonding interactions and other hydrophobic bindings with the essential amino acid LYS103. In addition, ADME study was conducted to predict suitability of the constructed compounds to be oral drug candidates. The results of this work suggested that thiazolidinone derivatives could be promising antimicrobial agents with considerable antioxidant potential.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 5","pages":"Article 101693"},"PeriodicalIF":3.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An experimental investigation for desalinating seawater into fresh water with permanent magnets and electromagnets

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-03-31 DOI: 10.1016/j.jics.2025.101695

Mohan Venkata Sai Krishna Vellampalli, Prasanna Kuchelar

{"title":"An experimental investigation for desalinating seawater into fresh water with permanent magnets and electromagnets","authors":"Mohan Venkata Sai Krishna Vellampalli, Prasanna Kuchelar","doi":"10.1016/j.jics.2025.101695","DOIUrl":"10.1016/j.jics.2025.101695","url":null,"abstract":"<div><div>The study explores a novel approach to desalination by using magnetic water treatment as a solution to the global water crisis caused by contaminants, rising temperatures, and human activity. The research aims to create artificial sea water by varying water concentrations to reduce salinity content, rather than brine rejection. The treatment uses permanent magnets and electromagnets to weaken or break the bonds of NaCl and reduce their concentration. This experiment is two-part: first, it created a permanent magnetic field, followed by an electromagnetic field with different direct current (DC) voltages. The dilution ratio and treatment controlled the variation of all parameters. This experimental approach yielded positive results when authors used magnetic water treatment for desalination. Permanent magnetic treatment (PMT) got rid of 20 % of the chlorides in the water that was treated, while electromagnetic treatment (EMT) got rid of 15.37 % (4V) – 54.61 % (10V). Sodium achieved removal rates of 13.6 % for PMT and 6.52 % (2V) – 13.35 % (6V) for EMT. Magnetic desalination research and development could address the global water crisis, with continuous testing and development establishing its suitability for various countries and applications.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 5","pages":"Article 101695"},"PeriodicalIF":3.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stabilizing latent fingermarks developed with iodine fuming: A new method

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-03-31 DOI: 10.1016/j.jics.2025.101694

Varinder Singh , P. Mandal , Stojkovikj Sasho , Metodija Najdoski , Oklevski Slobodan , O.P. Jasuja

引用次数: 0

Experimental and semiempirical quantum investigations of the effect of Cobalt addition on the dielectric properties of Nickle-Bentonite composite

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-03-31 DOI: 10.1016/j.jics.2025.101696

Ali H. Bashal , Mohammed A.H. Khalafalla , Rafat M. Ibrahim

{"title":"Experimental and semiempirical quantum investigations of the effect of Cobalt addition on the dielectric properties of Nickle-Bentonite composite","authors":"Ali H. Bashal , Mohammed A.H. Khalafalla , Rafat M. Ibrahim","doi":"10.1016/j.jics.2025.101696","DOIUrl":"10.1016/j.jics.2025.101696","url":null,"abstract":"<div><div>This paper presents the preparation and characterization of pure and metallically supported bentonite with different percentages of Co (1 % wt.) and Ni (5 % wt.). The preparation used the wet impregnation process method. The resulting composites were characterized by X-ray diffraction (XRD), and scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX) analysis. These characterizations indicated the greater metallic Co/Ni dispersion and higher specific surface area for the resulting composite. Moreover, the metallic nanoparticles in 1 %Co -5 %Ni/Bentonite have an intermediate dimension between that of 0 %Co–5 %Ni/Bentonite and 1 %Co–0 %Ni/Bentonite composites. Such intermediacy in the nanostructure of 1 %Co–5 %Ni/Bentonite may be associated with its measured dielectric properties characterized by the least permittivity and loss factor as compared to 0 %Co–5 %Ni/Bentonite and 1 %Co–0 %Ni/Bentonite. Interestingly, our semiempirical quantum calculations revealed that 1 %Co–5 %Ni/Bentonite has intermediate electrochemical properties (hardness and electronegativity) relative to those for 0 %Co–5 %Ni/Bentonite and 1 %Co–0 %Ni/Bentonite, indicating the optimal reactivity of 1 %Co–5 %Ni/Bentonite. Our results are, thus, pertinent to catalysis and other applications pursuing optimal electrochemical properties of Ni/Bentonite.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 5","pages":"Article 101696"},"PeriodicalIF":3.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of novel Mg Fe2O4/MgO composite: A high performer Photocatalyst for the cyclization of 1,3,4-oxadiazoles under Sunlight Irradiation

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-03-29 DOI: 10.1016/j.jics.2025.101688

Md Afroz Bakht, Abdulrahman I. Alharthi, Mshari Alotaibi, Hanan Abdullah Albalwi

{"title":"Construction of novel Mg Fe2O4/MgO composite: A high performer Photocatalyst for the cyclization of 1,3,4-oxadiazoles under Sunlight Irradiation","authors":"Md Afroz Bakht, Abdulrahman I. Alharthi, Mshari Alotaibi, Hanan Abdullah Albalwi","doi":"10.1016/j.jics.2025.101688","DOIUrl":"10.1016/j.jics.2025.101688","url":null,"abstract":"<div><div>Magnesium ferrite nanoparticles were synthesized by a solid-state reaction of Mg (NO<sub>3</sub>)<sub>2</sub>.6H<sub>2</sub>O, Fe (NO<sub>3</sub>)<sub>3</sub>.9H<sub>2</sub>O, NH<sub>4</sub>OH, and an optimum amount of distilled water and then calcined at high temperatures. In order to enhance the catalytic properties of magnesium ferrite particles, magnesium oxide as support was added, and thus catalysts MgFe<sub>2</sub>O<sub>4</sub>/MgO was successfully obtained in alkaline medium. The structure of the synthesized MgFe<sub>2</sub>O<sub>4</sub>/MgO catalyst was identified using FT-IR, XRD, SEM, BET, XPS, ICP-OES, EDX, and TGA techniques. Thus, MgFe<sub>2</sub>O<sub>4</sub>/MgO catalyst is employed as heterogeneous photocatalyst for the synthesis of substituted 1,3,4-oxadiazole derivatives using 2-amino-5-chloroanthanilic acid hydrazide and aldehydes as substrates in semi-aqueous conditions. The material had better photoactivity than bare MgO. It could make a wide range of oxadiazoles in as little as 30 min, and it was stable and could be recycled again and again. The best conditions for making model compounds (3b) with a 97 % yield were 30 min, 10 mg catalyst, and 100 mW cm<sup>−2</sup> light for photocatalysis and 80 °C for thermocatalysis. The photocatalytic technique improved yield and reaction time under optimal conditions. Photocatalytic synthesis saves ≈70 % more energy than thermal method. Even after four runs on recycled materials, the MgFe<sub>2</sub>O<sub>4</sub>/MgO photocatalyst showed outstanding stability. Nevertheless, the recycled catalyst showed unchanged behavior after repeated characterization, confirming the material's integrity. Moreover, the substrate condensation is due to light interaction ability, which is able to photocatalyze the cyclization to the final 1,3,4-oxadiazoles, demonstrating the optimal performance of this photocatalytic MgFe<sub>2</sub>O<sub>4</sub>/MgO material.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 5","pages":"Article 101688"},"PeriodicalIF":3.2,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reduced graphene enameled ZnO/PVA nanosheets as electrode materials for high-performance supercapacitors

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-03-28 DOI: 10.1016/j.jics.2025.101686

S. Pauline Sheeba , D Benny Anburaj , I. Devadoss , R. Selvam , M. Sasikumar , V. Jeevanantham

{"title":"Reduced graphene enameled ZnO/PVA nanosheets as electrode materials for high-performance supercapacitors","authors":"S. Pauline Sheeba , D Benny Anburaj , I. Devadoss , R. Selvam , M. Sasikumar , V. Jeevanantham","doi":"10.1016/j.jics.2025.101686","DOIUrl":"10.1016/j.jics.2025.101686","url":null,"abstract":"<div><div>For future uses, there is a great need for the creation of energy storage materials with a high specific energy. Supercapacitors have many potential uses, including in business energy management systems, solar energy harvesting, and hybrid electric cars. The use of a nanocomposite of ZnO and RGO with PVA in the manufacture of supercapacitors is detailed here. An affordable technique that used ultrasonic-assisted solution synthesis was employed to create the ZnO/RGO@PVA nanocomposite. Analytical techniques such as X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and confocal Raman spectroscopy were used to analyze the generated ZnO and ZnO/RGO@PVA nanocomposites. The XRD results confirmed that the nanocomposite was successfully synthesized and that the nanoparticles had a correct crystal structure. Raman spectroscopy confirmed the nanocomposite's hybridization, while scanning electron microscopy and transmission electron microscopy showed ZnO nanoparticles embellishing the RGO sheets. At a current density of 2 A g<sup>−1</sup>, the ZnO/RGO@PVA exhibits a high specific capacitance of 1222 F g<sup>−1</sup>, its greater surface area and good ionic diffusion, as shown by the comprehensive morphological study. With a scan rate of 10 mV s<sup>−1</sup>, the manufactured supercapacitor device has a high capacitance retention of around 90 % and outstanding electrochemical performance over 5000 cycles. The findings indicate that the nanocomposite of ZnO and RGO with PVA might be used as an electrode material in supercapacitors.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 5","pages":"Article 101686"},"PeriodicalIF":3.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of hydrotreatment technology to reduce the amount of sulfur and nitrogen in pyrolysis distillate using the TG-550 catalyst

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-03-28 DOI: 10.1016/j.jics.2025.101690

Abdugaffor Khurmamatov , Kumush Akhmedova

{"title":"Development of hydrotreatment technology to reduce the amount of sulfur and nitrogen in pyrolysis distillate using the TG-550 catalyst","authors":"Abdugaffor Khurmamatov , Kumush Akhmedova","doi":"10.1016/j.jics.2025.101690","DOIUrl":"10.1016/j.jics.2025.101690","url":null,"abstract":"<div><div>This article presents the results of a study on the hydrotreating process of pyrolysis distillate in an autoclave. The experiment utilized pyrolysis distillate produced at the \"Uz-Kor Gas Chemical\" plant, a TK-550 catalyst manufactured by \"Chirchik-Maxam,\" and autoclave equipment. An experimental setup was assembled to study the catalytic processing of pyrolysis distillate, including an autoclave, frame, electric drive, transformer, thermoelectric heater, hydrogen cylinder, and control and measuring instruments. The optimal technological parameters for pyrolysis distillate hydrotreatment were determined: a temperature range 400–420 °C, hydrogen pressure of 4 MPa, hydrogen-containing gas circulation of 200 Nm<sup>3</sup>/m<sup>3</sup> of feedstock, and a hydrogen concentration in the gas phase of 80 % (vol.). Elemental analysis, gas chromatography-mass spectrometry (GC-MS), and infrared (IR) spectroscopy were conducted on the hydrotreated distillate, the TG-550 catalyst was studied using SEM and X-ray diffraction analysis. As a result, the nitrogen content decreased from 7.4 wt% to 3.71 wt%, and the sulfur content was reduced from 9.24 wt% to 1.8 wt%. GC-MS spectra indicated the saturation of unsaturated bonds and a reduction in the number of aromatic rings. Fractionation of the hydrotreated product demonstrated that 58 % of the yield consisted of the fuel fraction.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 5","pages":"Article 101690"},"PeriodicalIF":3.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of non-precious metal additives on the performance and hydrothermal stability of DOC coatings

IF 3.2 4区化学

Journal of the Indian Chemical Society Pub Date : 2025-03-27 DOI: 10.1016/j.jics.2025.101687

Hao Liu, Xiutang Chu, Hailin Zhao, Yenan Liu

{"title":"Impact of non-precious metal additives on the performance and hydrothermal stability of DOC coatings","authors":"Hao Liu, Xiutang Chu, Hailin Zhao, Yenan Liu","doi":"10.1016/j.jics.2025.101687","DOIUrl":"10.1016/j.jics.2025.101687","url":null,"abstract":"<div><div>The diesel oxidation catalyst (DOCs) doped with six additives (La, Ce, Ba, Fe, Mn, Co) were selected. Based on X-ray diffraction (XRD) analysis, the influence of different additives on the crystal form of the alumina support in the catalyst was studied. Based on X-ray photoelectron spectroscopy (XPS) analysis, the influence of different additives on the aluminum coordination state on the surface of alumina was investigated. Based on H<sub>2</sub> temperature-programmed reduction (H<sub>2</sub>-TPR) and CO pulse reduction experiments, the influence of different additives on the redox performance of DOC was explored. Based on CO pulse adsorption, the influence of different additives on the precious metal dispersion of DOC was studied. Based on a small-scale evaluation device, the influence rules of different additives and their contents on the performance and hydrothermal stability of DOC were investigated. The experimental results show that among the six additives, La and Ba have the best effect on improving the hydrothermal stability of DOC. Further research shows that when the doping amount of La is 5 % and that of Ba is 3 %, La and Ba have the best effect on improving the performance and hydrothermal stability of DOC. Compared with the La additive, the Ba additive has a stronger effect on improving the hydrothermal stability of DOC. Characterization analysis experiments confirm that La and Ba stabilize and disperse Pt and Pd particles through the La–O–Al and Ba–O–Al interfaces formed on the surface of alumina, increasing the number of active centers and their hydrothermal aging resistance.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"102 5","pages":"Article 101687"},"PeriodicalIF":3.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0