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Phosphorous Doped Graphitic Carbon Nitride (P-g-C3N4) as an Electrochemical Platform for the Simultaneous Detection of Xanthine and Caffeine 磷掺杂石墨氮化碳(P-g-C3N4)作为同时检测黄嘌呤和咖啡因的电化学平台
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-16 DOI: 10.1002/cnma.202400327
Arunkumar Sakthivel, Subbiah Alwarappan
{"title":"Phosphorous Doped Graphitic Carbon Nitride (P-g-C3N4) as an Electrochemical Platform for the Simultaneous Detection of Xanthine and Caffeine","authors":"Arunkumar Sakthivel,&nbsp;Subbiah Alwarappan","doi":"10.1002/cnma.202400327","DOIUrl":"https://doi.org/10.1002/cnma.202400327","url":null,"abstract":"<p>A one step strategy was employed for the preparation of phosphorous doped g-C<sub>3</sub>N<sub>4</sub> (P-g-C<sub>3</sub>N<sub>4</sub>) using melamine phosphate. Herein, the precursor upon thermal condensation at 550 °C resulted in the formation of P-g-C<sub>3</sub>N<sub>4</sub> nanosheets. The as-synthesised P-g-C<sub>3</sub>N<sub>4</sub> nanosheets were characterized by UV-vis, FT-IR and Raman spectroscopy. Later, surface morphological analysis were carried out using FESEM and HRTEM. Moreover, the crystalline nature and elemental composition analysis were conducted using XRD and XPS. Following this, P-g-C<sub>3</sub>N<sub>4</sub> nanosheets modified glassy carbon (GC) electrode was employed for the simultaneous detection of xanthene and caffeine. The modified electrode was found to be linear in the range of 0.1 to 100 μM (for xanthine) and 0.05 to 100 μM (for caffeine). The limit of detection was found to be 10 nM and 14 nM for xanthine and caffeine respectively. Further, the electrode exhibited a highly selective detection towards each of these analyte when they co-exists.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trichosanthes Cucumerina Derived Activated Carbon: The Potential Electrode material for High Energy Symmetric Supercapacitor 瓜蒌瓜衍生活性炭:高能对称超级电容器的电位电极材料
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-15 DOI: 10.1002/cnma.202400112
Anit Joseph, Arshitha Mathew, Tiju Thomas
{"title":"Trichosanthes Cucumerina Derived Activated Carbon: The Potential Electrode material for High Energy Symmetric Supercapacitor","authors":"Anit Joseph,&nbsp;Arshitha Mathew,&nbsp;Tiju Thomas","doi":"10.1002/cnma.202400112","DOIUrl":"https://doi.org/10.1002/cnma.202400112","url":null,"abstract":"<p>High surface area porous activated carbons obtained from sustainable biomass are excellent functional materials for energy storage applications. This is the first report on snake gourd (Trichosanthes cucumerina) pericarp as a raw material of activated carbon and supercapacitor electrode material. Herein, a simple KOH activation and carbonisation method is used. The obtained SGC900 sample has a surface area of 1841 m<sup>2</sup>/g and an average pore volume of 0.52 cm<sup>3</sup>/g. SGC900 based supercapacitor exhibits good electrochemical storage capacity in 1 M H<sub>2</sub>SO<sub>4</sub> with a specific capacitance of 206 F/g at 1 A/g. The symmetric device delivered an energy density of 11 Wh/kg at a power density of 1.6 kW/kg. It provides a series resistance (R<sub>s</sub>) of 1.2 Ω and a charge transfer resistance R<sub>ct</sub> of 1.9 Ω. Furthermore, the device retains 95 % of capacitance over 5000 cycles. This work presents an easy and feasible approach for producing value-added activated carbon from sustainable biomass, potentially used in high-performance energy storage.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142861332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Binder-Free 3D Printed Polyurethane/Bi-MOFs Composites for Photocatalytic Degradation of Rhodamine-B 用于光催化降解罗丹明-B 的无粘合剂三维打印聚氨酯/Bi-MOFs 复合材料
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-08 DOI: 10.1002/cnma.202400469
Peiru Chen, Ximin Zhang, Wenbiao Wang, Gang Xu, Shijiao Dong, Meiqing Cai, Jing-Cheng Liu, Jun-Ling Song
{"title":"Binder-Free 3D Printed Polyurethane/Bi-MOFs Composites for Photocatalytic Degradation of Rhodamine-B","authors":"Peiru Chen,&nbsp;Ximin Zhang,&nbsp;Wenbiao Wang,&nbsp;Gang Xu,&nbsp;Shijiao Dong,&nbsp;Meiqing Cai,&nbsp;Jing-Cheng Liu,&nbsp;Jun-Ling Song","doi":"10.1002/cnma.202400469","DOIUrl":"https://doi.org/10.1002/cnma.202400469","url":null,"abstract":"<p>The modularization of metal-organic-frameworks (MOFs) powders is a crucial to bringing out the excellent properties of MOFs to industrial applications in water treatment, gas adsorption/separation and catalytic fields. To improve their practical application and recyclability, we propose a hybrid composite of biocompatible MOFs decorated on self-supported three-dimensional (3D) printed polyurethane acrylate (PUA) for wastewater treatment. In this study, we select Bi-based MOFs with good visible-light response and chemical stability as photocatalysts, two MOFs, bismuth gallate (Bi-GA) and bismuth ellagic acid (Bi-EA), are loaded into the mesh-like PUA template by in-situ growth method. And then, these two composites, PUA/Bi-GA and PUA/Bi-EA are used for the photocatalytic treatment of Rhodamine-B (RhB) dye. The results demonstrate that PUA/Bi-EA could reach the highest removal rate of 98.08 % under acidic conditions in 4 hours. The excellent performance should be attributed to unique structure that endow their high adsorption capacity for dyes, further, the adsorbed dye as a sensitizer enhances the utilization of sun-light. This study provides a new composite for advanced photocatalytic water treatment and other environmental purification.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cover Feature: One-Pot Synthesis of Orange Emissive Carbon Dots Specific for Staining of Mitochondria in both Cancer and Non-Cancer Cells (ChemNanoMat 10/2024) 封面专题:一锅合成专为癌症和非癌症细胞线粒体染色的橙色发射碳点(ChemNanoMat 10/2024)
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-07 DOI: 10.1002/cnma.202481002
Udisha Sahrawat, Richa Garg, Farhan Anjum, Abdul Salam, Kush Kaushik, Goraksha T. Sapkal, Chayan Kanti Nandi
{"title":"Cover Feature: One-Pot Synthesis of Orange Emissive Carbon Dots Specific for Staining of Mitochondria in both Cancer and Non-Cancer Cells (ChemNanoMat 10/2024)","authors":"Udisha Sahrawat,&nbsp;Richa Garg,&nbsp;Farhan Anjum,&nbsp;Abdul Salam,&nbsp;Kush Kaushik,&nbsp;Goraksha T. Sapkal,&nbsp;Chayan Kanti Nandi","doi":"10.1002/cnma.202481002","DOIUrl":"https://doi.org/10.1002/cnma.202481002","url":null,"abstract":"<p><b>Specific staining of mitochondria</b> in both cancer and non-cancer cells using orange emissive carbon dots (CDs) synthesized via a one-pot solvothermal method using 3-(carboxypropyl) triphenylphosphonium bromide (TPP) and citric acid as precursors. The negative membrane potential of the mitochondrial inner membrane facilitates the accumulation of positively charged TPP present on the surface of CDs. More information can be found in the Research Article by Chayan Kanti Nandi and co-workers..\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202481002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Front Cover: Tailoring Energy Structure of Low-Toxic Ternary Ag−Bi−S Quantum Dots through Solution-Phase Synthesis for Quantum-Dot-Sensitized Solar Cells (ChemNanoMat 10/2024) 封面:通过溶液相合成技术定制低毒三元银-双-硅量子点的能量结构,用于量子点敏化太阳能电池(ChemNanoMat 10/2024)
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-07 DOI: 10.1002/cnma.202481001
Wentao Zhang, Dr. Kazutaka Akiyoshi, Prof. Tatsuya Kameyama, Prof. Tsukasa Torimoto
{"title":"Front Cover: Tailoring Energy Structure of Low-Toxic Ternary Ag−Bi−S Quantum Dots through Solution-Phase Synthesis for Quantum-Dot-Sensitized Solar Cells (ChemNanoMat 10/2024)","authors":"Wentao Zhang,&nbsp;Dr. Kazutaka Akiyoshi,&nbsp;Prof. Tatsuya Kameyama,&nbsp;Prof. Tsukasa Torimoto","doi":"10.1002/cnma.202481001","DOIUrl":"https://doi.org/10.1002/cnma.202481001","url":null,"abstract":"<p>The photoelectrochemical properties and electron energy structure of <b>low-toxic ternary Ag–Bi–S quantum dots</b> (QDs) with near-infrared photoresponse can be tuned by adjusting the size and chemical composition through synthesis reaction temperature control during solution-phase preparation. An optimal solar cell efficiency of 0.74% was achieved using stoichiometric AgBiS<sub>2</sub> QDs synthesized at 150 °C. More information can be found in the Research Article by Kazutaka Akiyoshi and co-workers..\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202481001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Expression of Concern: Affinity of Glycan-Modified Nanodiamonds towards Lectins and Uropathogenic Escherichia Coli 表达关切:糖修饰纳米金刚石与凝集素和致病性大肠杆菌的亲和力
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-07 DOI: 10.1002/cnma.202481041
{"title":"Expression of Concern: Affinity of Glycan-Modified Nanodiamonds towards Lectins and Uropathogenic Escherichia Coli","authors":"","doi":"10.1002/cnma.202481041","DOIUrl":"https://doi.org/10.1002/cnma.202481041","url":null,"abstract":"<p>V. Turcheniuk, K. Turcheniuk, J. Bouckaert, A. Barras, T. Dumych, R. Bilyy, V. Zaitsev, A. Siriwardena, Q. Wang, R. Boukherroub, and S. Szunerits, “Affinity of Glycan-Modified Nanodiamonds towards Lectins and Uropathogenic Escherichia Coli,” <i>ChemNanoMat</i> 2, no. 4 (2016): 307–314, https://doi.org/10.1002/cnma.201500229.</p><p>This Expression of Concern is for the above article, published online on 8 February 2016, in Wiley Online Library (wileyonlinelibrary.com), and has been published by agreement between the journal‘s Editor-in-Chief, Preeti Vashi; the Asian Chemical Editorial Society; and Wiley-VCH GmbH, following an investigation from Wiley's Integrity in Publishing Group. A correction (https://doi.org/10.1002/cnma.202300477) was published in February 2024 to address errors in Figure 3D and Figure 6. This Expression of Concern has been agreed to as the editors have doubts that the correction and the authors’ explanation are sufficient to address the concerns. An investigation by the CNRS and Université Lille is ongoing. The journal is issuing this Expression of Concern to alert readers about the ongoing investigation.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202481041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carbon based Composite Materials for Microwave Absorption in Low Frequency S and C Band: A Review 用于低频 S 和 C 波段微波吸收的碳基复合材料:综述
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-06 DOI: 10.1002/cnma.202400406
Sibt ul Hassan, Lizhen Hou, Daitao Kuang, Shiliang Wang
{"title":"Carbon based Composite Materials for Microwave Absorption in Low Frequency S and C Band: A Review","authors":"Sibt ul Hassan,&nbsp;Lizhen Hou,&nbsp;Daitao Kuang,&nbsp;Shiliang Wang","doi":"10.1002/cnma.202400406","DOIUrl":"https://doi.org/10.1002/cnma.202400406","url":null,"abstract":"<p>With the rapid advancement of 5G technologies and electronic devices, there is a growing demand for microwave absorbing materials, especially those effective in low frequency microwave bands (2–8 GHz), making it an essential requirement. In recent years, many innovative microwave absorbers have been developed for low frequency absorption, with carbon/magnetic composite materials becoming particularly promising due to their various loss mechanisms and optimized impedance matching characteristics over a wide frequency range. However, there is currently a lack of a comprehensive review that summarizes the findings on low frequency absorbers. This review article thoroughly examines the current research on carbon/magnetic composite materials with efficient absorption performance in the low-frequency S and C bands. It provides a detailed discussion of the microwave absorption performance of these composite materials. Furthermore, the composite design strategies, synthesis techniques, microstructure performance relationship, and microwave attenuation mechanisms are summarized. Lastly, the challenges and future outlook for low frequency microwave absorbing materials are addressed. This review article aspires to provide new insights into designing and synthesizing composite materials to accomplish effective low-frequency microwave absorption, thereby promoting practical applications.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gold Nanoparticles Stabilized by δ-Cyclodextrin in Aqueous Media: Characterization and Evaluation of their Catalytic Properties in the Reduction of 4-Nitrophenol 水介质中δ-环糊精稳定金纳米颗粒的表征及其对4-硝基苯酚还原的催化性能评价
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-04 DOI: 10.1002/cnma.202400246
Ernesto de la Torre, Sébastien Noël, Antonio Madureira, Kasper Hornstrup Hansen, Andreas Erichsen, Anne Ponchel, Sophie R. Beeren, Éric Monflier, Bastien Léger
{"title":"Gold Nanoparticles Stabilized by δ-Cyclodextrin in Aqueous Media: Characterization and Evaluation of their Catalytic Properties in the Reduction of 4-Nitrophenol","authors":"Ernesto de la Torre,&nbsp;Sébastien Noël,&nbsp;Antonio Madureira,&nbsp;Kasper Hornstrup Hansen,&nbsp;Andreas Erichsen,&nbsp;Anne Ponchel,&nbsp;Sophie R. Beeren,&nbsp;Éric Monflier,&nbsp;Bastien Léger","doi":"10.1002/cnma.202400246","DOIUrl":"https://doi.org/10.1002/cnma.202400246","url":null,"abstract":"<p>The synthesis of gold nanoparticles stabilized by cyclomaltononaose (δ-CD) in aqueous phase was performed. Protection of the gold nanoparticles by standard native cyclodextrins such as α-CD, β-CD and γ-CD has also been considered for comparison. All of these colloidal suspensions were fully characterized by FT-IR, DLS, UV-Vis spectroscopy, TEM, XPS and also NMR experiments. Finally, their catalytic activity was evaluated in the reduction of 4-nitrophenol to 4-aminophenol in the presence of an excess of sodium borohydride. Gold nanoparticles stabilized by δ-CD presented good activity and exhibited better long-term stability. This study highlighted the fact that the obtention of the best catalytic activity corresponds to not only a compromise between the size of the nanoparticles and the interaction of the substrate with the metal nanoparticles surface, but also the supramolecular interactions between the substrate and the cyclodextrin.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.202400246","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tellurium Enriched Over-Oxidized MoTe2 Anchored MXene Sheets: A Promising Li-ion Battery Anode Material 富碲过氧化MoTe2锚定MXene片:一种很有前途的锂离子电池负极材料
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-03 DOI: 10.1002/cnma.202400384
Rohan S. Kamat, Chetana U. Mulik, Xijue Wang, Chinmayee Padwal, Abhishek A. Kulkarni, Lata D. Jadhav, Deepak P. Dubal
{"title":"Tellurium Enriched Over-Oxidized MoTe2 Anchored MXene Sheets: A Promising Li-ion Battery Anode Material","authors":"Rohan S. Kamat,&nbsp;Chetana U. Mulik,&nbsp;Xijue Wang,&nbsp;Chinmayee Padwal,&nbsp;Abhishek A. Kulkarni,&nbsp;Lata D. Jadhav,&nbsp;Deepak P. Dubal","doi":"10.1002/cnma.202400384","DOIUrl":"https://doi.org/10.1002/cnma.202400384","url":null,"abstract":"<p>To address the challenge of low electronic and ionic conductivities in lithium-ion batteries (LIBs), we synthesized MoTe<sub>2</sub>@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> via a modified hydrothermal route. This 2D van der Waals composite exhibited a stable reversible specific discharge capacity of 566 mAh/g at 0.1 C (67 mA/g) and retained 71 % of its initial capacity during rate performance tests. Notably, cycling stability tests revealed an increased discharge capacity of 316.4 mAh/g after 564 cycles at 0.4 C (268 mA/g), which improved further to 378.2 mAh/g after 922 cycles at 1 C (670 mA/g). The exceptional electrochemical performance stems from the unique MoTe<sub>2</sub>@Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> architecture, enhancing Li<sup>+</sup> site exposure and ensuring structural stability. This composite emerges as a promising and easily synthesizable advanced anode material for LIBs, offering enhanced conductivity and stability.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tuning Thin Film Thickness and Porosity with Layer-by-Layer Submicronic Particles Assembly 用亚微米粒子逐层组装调整薄膜厚度和孔隙度
IF 2.6 4区 材料科学
ChemNanoMat Pub Date : 2024-10-01 DOI: 10.1002/cnma.202400404
Siham Mouhtadi, Florian E. Jurin, Cédric C. Buron, Isabelle Pochard
{"title":"Tuning Thin Film Thickness and Porosity with Layer-by-Layer Submicronic Particles Assembly","authors":"Siham Mouhtadi,&nbsp;Florian E. Jurin,&nbsp;Cédric C. Buron,&nbsp;Isabelle Pochard","doi":"10.1002/cnma.202400404","DOIUrl":"https://doi.org/10.1002/cnma.202400404","url":null,"abstract":"<p>Porous NiO films were prepared using Layer-by-Layer assembly of submicronic β-Ni(OH)<sub>2</sub> nanoplatelets and size-controlled poly(methyl methacrylate) (PMMA) particles. β-Ni(OH)<sub>2</sub>/PMMA thin films were elaborated using different PMMA particle sizes and concentrations. The elaborated films were then heated at a temperature of 325 °C in air for one hour to form porous NiO films by calcining β-Ni(OH)<sub>2</sub> nanoplatelets. PMMA polymeric particles were also calcined during this process, leading to film porosity. Thermal treatment experiments clearly showed a relationship between PMMA particle size and film properties <i>i. e</i>., porosity and thickness. NiO films exhibited huge pores, around 1 μm, and matter loss after calcination when PMMA particles with a diameter of 190±43 nm were employed. Partial collapsing of the films was also denoted. Experiments were then carried out by decreasing PMMA particle size (100±19 nm) leading to cohesive NiO films. Finally, the specific surface area (SSA) of the NiO films prepared with PMMA particles of 100 nm was determined by adsorption-desorption of nitrogen gas using the BET (Brunauer–Emmet–Teller) method. This showed an increase in SSA with PMMA particle concentration.</p>","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 12","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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