Mingping He, Lin Gu, Jun Chai, Wanli Xu, Zhenqiang Dong, Yuechao Wu
{"title":"Construction of oxygen vacancy-enriched manganese dioxide via liquid metal reduction for enhanced electrochemical performance","authors":"Mingping He, Lin Gu, Jun Chai, Wanli Xu, Zhenqiang Dong, Yuechao Wu","doi":"10.1016/j.inoche.2025.114595","DOIUrl":"10.1016/j.inoche.2025.114595","url":null,"abstract":"<div><div>As a typical supercapacitor electrode material, manganese dioxide (MnO<sub>2</sub>) faces application challenges due to its inferior conductivity and specific capacitance, which falls significantly below its theoretical capacity. Herein, a novel method is proposed utilizing the reducibility of gallium-based liquid metal to modulate the oxygen vacancies of MnO<sub>2</sub> under mild ambient conditions. The introduction of oxygen vacancies can effectively enhance the conductivity of MnO<sub>2</sub> and create more electrochemical active sites, leading to improved charge storage capabilities. A specific capacitance of 327F g<sup>−1</sup> is achieved at a current density of 1 A g<sup>−1</sup> for oxygen vacancy-enriched MnO<sub>2</sub> (24-MnO<sub>x</sub>), which is approximately 6 times that of pristine MnO<sub>2</sub> (0-MnO<sub>x</sub>). The symmetric supercapacitor device assembled from 24-MnO<sub>x</sub> exhibits an energy density of 24 Wh kg<sup>−1</sup> at a power density of 600 W kg<sup>−1</sup>. Density Functional Theory (DFT) simulations reveal that the introduction of oxygen vacancies enhances the electrical conductivity of 24-MnO<sub>x</sub>, and significantly promotes the diffusion of K<sup>+</sup>, leading to enhanced electrochemical performance. These results indicate that the reducibility of liquid metal can effectively modulate the oxygen vacancy concentration in MnO<sub>2</sub>, providing new insights for designing high-performance supercapacitor electrode materials.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114595"},"PeriodicalIF":4.4,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shanshan Song , Guangfeng Li , Anxiong Zheng , Xiangyun Kong , Mingping He , Yuechao Wu , Zhenqiang Dong , Wanli Xu
{"title":"Recycling spent lithium ion battery as sustainable carbon sources of high-performance Si/C composites anodes","authors":"Shanshan Song , Guangfeng Li , Anxiong Zheng , Xiangyun Kong , Mingping He , Yuechao Wu , Zhenqiang Dong , Wanli Xu","doi":"10.1016/j.inoche.2025.114592","DOIUrl":"10.1016/j.inoche.2025.114592","url":null,"abstract":"<div><div>With the rapid development of electric vehicles, the harmless treatment and recycling of lithium ion battery packs have become the current research focus. This work developed a charge-disassemble-oxidize-leach method to recover spent lithium ion battery anodes to prepare recycled graphite (RG). The battery packs were charged at various state of charge (SOC), followed by safe disassembly, oxidization and leach to recover graphite from the anodes. SEM images showed the layered structure of recycled graphite after treatment; Raman spectroscopy and XRD pattern indicated the RG had more defects when charged to 100 % SOC. The RG showed 319.54 mAh·g<sup>−1</sup> discharge capacity when cycled under 0.1C for 100 cycles. The RG material was then prepared into Si/C composite anode with silicon nanoparticles via high energy energy ball milling, and showed discharge capacity at 0.1C over 100 cycles at 430.67 mAh·g<sup>−1</sup>, which was 34.78 % higher than that of RG alone. CV analysis also suggested characteristic charge and discharge behavior for silicon and graphite in the composite. This method provided a new approach for the future recycling and reusing of spent lithium ion battery anodes.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114592"},"PeriodicalIF":4.4,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced photovoltaic performance using one-dimensional polyaniline nanowires decorated with two-dimensional tungsten disulfide nanoflakes as a binary composite counter electrode for solar cell studies","authors":"Alagumalai Manimekalai , Kuppu Sakthi Velu , Sonaimuthu Mohandoss , Seho Sun","doi":"10.1016/j.inoche.2025.114593","DOIUrl":"10.1016/j.inoche.2025.114593","url":null,"abstract":"<div><div>In this work, the poly (aniline) decorated tungsten sulfide (1D PANI@2D WS<sub>2</sub>) composite was prepared as a counter electrode (CE) for dye-sensitized solar cell (DSSC) studies. FE-SEM images showed that 2D WS<sub>2</sub> displayed a flower-like structure, and 1D PANI exhibited a fiber like-structure, while the 1D PANI@2D WS<sub>2</sub> composite appeared as a 1D PANI polymer covered flower-like structure of 2D WS<sub>2</sub>. TEM images further confirmed that 1D PANI nanofibers were surrounding the flower-like tungsten sulfide. XRD pattern analysis indicated that the as-prepared 1D PANI@2D WS<sub>2</sub> composite possessed an octahedral crystalline structure, with an average crystanillity of 63.49 %. The CV studies of composite demonstrated enhanced electrocatalytic activity for iodide/tri-iodide (I<sup>−</sup>/I<sup>3−</sup>) regeneration at the CE surface. Additionally, the EIS studies revealed that the 1D PANI@2D WS<sub>2</sub> composite CE exhibited the high electrical conductivity of 6.23 × 10<sup>−3</sup> Scm<sup>−1</sup>. DSSCs assembled the 2D WS<sub>2</sub>, 1D PANI, 1DPANI@2D WS<sub>2</sub> composite, and Pt as CEs, with N719 dye soaked TiO<sub>2</sub> NPs as photo-anode. The 1-butyl-3-methylimidazolium iodide, potassium iodide, iodine, and poly (ethylene oxide) used as electrolyte medium. Among these DSSC device, the 1D PANI@2D WS<sub>2</sub> composite CE achieved an efficiency of 7.28 %. The reproducibility studies of the binary composite CE was conducted over approximately 30 days. After this period, the composite CE achieved an efficiency of 6.24 %. Furthermore, the maximum incident photon-to-charge carrier efficiency (IPCE) for the DSSCs utilizing the 1D PANI@2D WS<sub>2</sub> composite CE was recorded at 73.21 %, surpassing the 66.12 % efficiency of the DSSC with the Pt CE.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114593"},"PeriodicalIF":4.4,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amal S. Basaleh , Fatehy M. Abdel-Haleem , Reda M. Mohamed , Adel A. Ismail
{"title":"Constructing visible-light-driven heterojunctions NiS/ZnO photocatalyst for H2 evolution by glycerol photoreforming","authors":"Amal S. Basaleh , Fatehy M. Abdel-Haleem , Reda M. Mohamed , Adel A. Ismail","doi":"10.1016/j.inoche.2025.114587","DOIUrl":"10.1016/j.inoche.2025.114587","url":null,"abstract":"<div><div>The incorporation of NiS as a cocatalysts can effectively boost the separation of photocharge carriers in NiS/ZnO photocatalyst for promoting the H<sub>2</sub> evolution yield. Herein, mesoporous ZnO nanoparticles (NPs), with an average particle size of ∼ 10 nm, were hydrothermally synthesized in the presence of tetrapropylammonium hydroxide (TPAOH). NiS NPs (10 nm) as a cocatalyst are uniformly distributed on the mesoporous ZnO NPs. The photocatalytic activity of xNiS/ZnO (x = 3, 6, 9, and 12 wt%), as a photocatalyst, are evaluated for H<sub>2</sub> evolution through photoreforming of glycerol under visible light illumination of λ ≥ 420 nm. A small amount of the platinum (0.5 %, w/w) was photodeposited onto NiS/ZnO nanocomposites under illumination during the photocatalytic process. The 9 % NiS/ZnO photocatalyst showed the maximum H<sub>2</sub> evolution rate of ∼3078.3μmol g<sup>−1</sup>h<sup>−1</sup>, which was improved by 108 folds over sole ZnO NPs (28.42μmol g<sup>−1</sup>h<sup>−1</sup>). The NiS/ZnO nanocomposites offered sufficient stable H<sub>2</sub> evolution rate for five cycles within 45 h. The enhancement of the photocatalytic activity of NiS/ZnO nanocomposites was verified by photoluminescence, which was confirmed by the photocurrent-time results. The enhanced H<sub>2</sub> evolution from glycerol photoreforming over NiS/ZnO nanocomposites was ascribed to their high surface area, high crystallinity and narrowed bandgap energy, formation of Schottky barriers, high light harvesting, and the accelerated separation of the photocharge carriers. This work highlights the novel design of low-cost photocatalysts for realizing considerable H<sub>2</sub> evolution yield under visible illumination.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114587"},"PeriodicalIF":4.4,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent advances in photoelectrochemical potential improvement of CuBi2O4: Energy applications","authors":"Harsh Kumar , Tabassum Nike , Amit Kumar , Deepika Kaushal , Vinay Chauhan , Manish Kumar","doi":"10.1016/j.inoche.2025.114584","DOIUrl":"10.1016/j.inoche.2025.114584","url":null,"abstract":"<div><div>CuBi<sub>2</sub>O<sub>4</sub>, or copper bismuth oxide, is the most important spinel oxide and a promising material that shows its excellent potential in photocatalytic applications. As titanium dioxide (TiO<sub>2</sub>) is a widely used photocatalyst that absorbs UV light, CuBi<sub>2</sub>O<sub>4</sub> absorbs visible light too because of its narrower band gap energy (1.5–1.8) eV, and this makes it much efficient in various applications, as UV light is not widespread. CuBi<sub>2</sub>O<sub>4</sub> is also used as a photoelectrode material for photoelectrochemical (PEC) cells. In addition to photocatalysis, it is specifically used as an electrode material in batteries as its structural stability and good capacity make it suitable for effective charge storage and long-term cycling. Recent advances in the synthesis of CuBi<sub>2</sub>O<sub>4</sub> from the hydrothermal method, sol–gel method, co-precipitation, etc., have enhanced its production with improved surface areas and engineered morphologies, hence improving its performance in storing energy. CuBi<sub>2</sub>O<sub>4</sub> also forms heterojunctions with perovskites and photocatalysts (such as SrTiO<sub>3</sub>, TiO<sub>2</sub>, ZnO etc.), which enhance its photocurrent density and photostability, but it is quite challenging. Hence, this review highlights the CuBi<sub>2</sub>O<sub>4</sub>-based materials, with their synthesis methods and applications in the photoelectrochemical H<sub>2</sub>O splitting for H<sub>2</sub> generation, CO<sub>2</sub> reduction, solar cells, and batteries that describe their importance in producing energy.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114584"},"PeriodicalIF":4.4,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Catalytic performance of a copper coordination polymer in the oxidation of styrene: Insights into immobilization and thermal transformation","authors":"Zohreh Razmara","doi":"10.1016/j.inoche.2025.114590","DOIUrl":"10.1016/j.inoche.2025.114590","url":null,"abstract":"<div><div>A metal–organic polymer based on Cu (II) (catalyst <strong>1</strong>) was successfully synthesized. The molecular structure of catalyst <strong>1</strong> was analyzed using several methods. Subsequently, catalyst <strong>1</strong> was immobilized onto mesoporous Fe<sub>3</sub>O<sub>4</sub>@TiO<sub>2</sub> particles, resulting in a new catalyst <strong>2</strong>. Heating catalyst <strong>1</strong> to 800 °C led to the formation of CuO particles (catalyst <strong>3</strong>). The synthesized catalysts were thoroughly characterized using various analytical techniques, including elemental analysis (CHN), FT-IR spectroscopy, thermal analysis (TGA/DSC), X-ray powder Diffraction (XRD), and Energy-Dispersive X-ray Spectroscopy (EDS). Catalysts <strong>1</strong> to <strong>3</strong> were employed in the oxidation of styrene, utilizing 30 % hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as the oxidizing agent. The styrene conversion followed the order: 2 > 3 > 1. The catalytic efficiency was influenced by solvent type, temperature, catalyst amount, and oxidant. We optimized these conditions to enhance the performance of the best catalyst. Recyclability test for catalyst <strong>2</strong> showed stability, indicating that <strong>2</strong> remained intact throughout seven successive cycles. The advantageous properties of catalyst <strong>2</strong>, including its non-toxic nature, ease of separation, high efficiency, and recyclability, underscore its potential as a promising catalytic material.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114590"},"PeriodicalIF":4.4,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fatemeh Abedi Tameh , Hamza Elsayed Ahmed Mohamed , Leila Aghababaee , Mahmood Akbari , Mohammad Hasan Javadi , Marique Aucamp , Karen Jacqueline Cloete , Janet Soleimannejad , Malik Maaza
{"title":"Characterization and cytotoxicity of nanoceria phytosynthesized using Eucalyptus camaldulensis bark extract","authors":"Fatemeh Abedi Tameh , Hamza Elsayed Ahmed Mohamed , Leila Aghababaee , Mahmood Akbari , Mohammad Hasan Javadi , Marique Aucamp , Karen Jacqueline Cloete , Janet Soleimannejad , Malik Maaza","doi":"10.1016/j.inoche.2025.114576","DOIUrl":"10.1016/j.inoche.2025.114576","url":null,"abstract":"<div><div>Cancer, a complex group of diseases characterized by uncontrolled cell growth, poses a significant global health risk. In the context of the high occurrence of breast cancer (BC) in women, conventional chemotherapeutic agents, although effective, frequently bring about challenges such as resistance and recurrence. Nanotechnology is emerging as a promising approach, with attention focused on cerium oxide nanoparticles (CNPs). CNPs possess distinctive characteristics such as antioxidant activity, the ability to transition between Ce<sup>3+</sup> and Ce<sup>4+</sup> oxidation states, and biocompatibility with living systems. This study introduces a novel phytosynthesis method using <em>Eucalyptus camaldulensis</em> bark extract to synthesize CNPs, emphasizing environmentally friendly methods. Characterization techniques including Fourier transform infrared spectroscopy (FTIR), Powder X-ray diffraction (XRD), Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Transmission electron microscopy (TEM), Diffuse Reflectance (DR) were used to elemental, structural, and morphological properties of synthesized CNPs. Results have shown the successful synthesis of CNPs having cubic fluorite structure with a space group of <em>Fm3m</em> (225) and a crystallite size of 11.2 nm based on XRD characterization. FTIR and EDX have confirmed the elemental analysis of CNPs and the presence of extracted biomolecules during the synthesis process. SEM and TEM images revealed the morphology of the phytosynthesized CNPs as sphere-like, with a size of 2 to 10 nm. Finally, cytotoxicity by MTT assay and uptake of these CNPs on MCF-7 cells demonstrates successful uptake and their potential to inhibit these cancerous cells. The protective effect of CNPs on normal cells was further investigated using a ROS assay on the MCF10A cell line. Furthermore, the catalase-mimic (CAT-mimic) activity of phytosynthesized CNPs was assessed by a commercial CAT-mimic kit assay.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114576"},"PeriodicalIF":4.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yanqin Xue , Hao Cai , Jingyuan Zhai , Guiling Wang
{"title":"Highly efficient hydrogen production from KBH4 hydrolysis with amorphous Co-B decorated MXene catalyst","authors":"Yanqin Xue , Hao Cai , Jingyuan Zhai , Guiling Wang","doi":"10.1016/j.inoche.2025.114580","DOIUrl":"10.1016/j.inoche.2025.114580","url":null,"abstract":"<div><div>Developing cost-effective and durable catalysts for potassium borohydride (KBH<sub>4</sub>) hydrolysis is critical for advancing hydrogen energy applications. Herein, we report an amorphous cobalt boride (Co-B) catalyst supported on MXene (Co-B/MXene) synthesized through an in-situ reduction and assembly strategy. Systematic investigations reveal that MXene not only prevents Co-B agglomeration but also enhances electronic interactions, thereby optimizing catalytic activity. Under optimal conditions, the Co-B/MXene composite achieves an exceptional hydrogen generation rate of 4637 mL min<sup>−1</sup> g<sup>−1</sup> with a remarkably low activation energy of 24.62 kJ mol<sup>−1</sup>, surpassing most reported Co-based catalysts. Furthermore, the catalyst retains 51.4 % of its initial activity after five cycles, demonstrating moderate reusability. This work highlights MXene as a promising support for designing high-performance borohydride hydrolysis catalysts and provides insights into electronic structure modulation for energy conversion applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114580"},"PeriodicalIF":4.4,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yun-Peng Zha , Ning-Rui Zhou , Ming-Qi Zhang , Jun-Chao Chen , Zheng-Jun Xiong , Qin-Qin Wang , Min-Min Liu
{"title":"Enhancement of CO-SCR performance achieved by electronic metal-support interaction","authors":"Yun-Peng Zha , Ning-Rui Zhou , Ming-Qi Zhang , Jun-Chao Chen , Zheng-Jun Xiong , Qin-Qin Wang , Min-Min Liu","doi":"10.1016/j.inoche.2025.114581","DOIUrl":"10.1016/j.inoche.2025.114581","url":null,"abstract":"<div><div>The selection of an appropriate support material plays a critical role in determining the catalytic performance of molded catalysts for CO-selective catalytic reduction of NO (CO-SCR). While previous research has predominantly focused on the physical supporting characteristics of carriers, insufficient attention has been paid to the intrinsic influence of support materials on catalytic functionality. Herein, we selected copper foil (CF) as the carrier based on the superior stability and certain mechanical strength, and successfully prepared MOF@POM/CF precursor via in-situ hydrothermal method. Furthermore, a series of molded catalysts (Cu/CF-300, Cu/CF-400 and Cu/CF-550) were obtained via high-temperature pyrolysis on 300, 400 and 550 °C, in which the Cu/CF-300 performed 85 % NO conversion rate at 350 °C and complete removal at 400 °C with the GHSV of 15,000 h<sup>−1</sup>. Systematic characterization revealed that the electronic metal-support interaction (EMSI) not only facilitates homogeneous dispersion of active metallic sites but also effectively regulate the electron transfer and chemical properties of active metals, thereby enhancing the CO-SCR reaction kinetics. Furthermore, the Cu/CF-300 catalyst exhibited remarkable resistance to oxygen poisoning, indicating promising practical applicability.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114581"},"PeriodicalIF":4.4,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The structural, optical and Urbach tail studies of polycrystalline CuO thin films synthesized by SILAR technique","authors":"Saniye Tekerek , Fatma Göde","doi":"10.1016/j.inoche.2025.114573","DOIUrl":"10.1016/j.inoche.2025.114573","url":null,"abstract":"<div><div>Copper oxide (CuO) thin films were synthesized onto microscope glass substrates at 55 °C with different pH values (pH = 9.50, 10.05, and 10.50), resulting in different film thicknesses using the successive ionic layer adsorption and reaction (SILAR) technique. The film structure was characterized using the x-ray diffraction technique and scanning electron microscope (SEM). The elemental analysis was performed by energy dispersive x-ray spectroscopy (EDS). The optical properties of the films were examined using a UV–vis spectrophotometer. In all films, the XRD measurements revealed the monoclinic CuO phase. The direct optical band gap width of the film showed a red shift and decreased from 2.66 eV to 2.25 eV with increasing film thickness. Likewise, the Urbach tail width of the films dropped from 1.045 eV to 0.665 eV. Additionally, optical parameters like refractive index (<span><math><mrow><mi>n</mi></mrow></math></span>), extinction coefficient (<span><math><mrow><mi>k</mi></mrow></math></span>), real (<span><math><mrow><msub><mi>ε</mi><mn>1</mn></msub></mrow></math></span>) and imaginary (<span><math><mrow><msub><mi>ε</mi><mn>2</mn></msub></mrow></math></span>) components of dielectric constant were calculated.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114573"},"PeriodicalIF":4.4,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}