IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-11-11 DOI: 10.1002/cnma.202481101

Shashank Mishra, Erwann Jeanneau, Sweta Gahlot, Nidal Raydan, Laurence Burel, Thibault Cornier, Anne Bonhomme, Pascal Bargiela

引用次数: 0

Construction of PtAg-on-Au Heterostructured Nanoplates for Improved Electrocatalytic Activity of Formic Acid Oxidation 构建 PtAg-on-Au 异质结构纳米板以提高甲酸氧化的电催化活性

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-10-21 DOI: 10.1002/cnma.202400399

Quansen Wu, Yuanyuan Min, Yingying Wang, Yanyun Ma, Yiqun Zheng

{"title":"Construction of PtAg-on-Au Heterostructured Nanoplates for Improved Electrocatalytic Activity of Formic Acid Oxidation","authors":"Quansen Wu, Yuanyuan Min, Yingying Wang, Yanyun Ma, Yiqun Zheng","doi":"10.1002/cnma.202400399","DOIUrl":"https://doi.org/10.1002/cnma.202400399","url":null,"abstract":"Direct formic acid fuel cells have attracted significant attention due to their low fuel crossover, high safety, and high theoretical power density among all proton-exchange membrane fuel cells. Numerous efforts have been dedicated to studying formic acid oxidation, particularly in the fabrication of high-performance electrocatalysts with economical utilization of Pt metal. In this work, we report a synthetic strategy to create PtAg dots supported on plate-like Au nanoparticles and explore their applications in electrocatalytic formic acid oxidation. The highly dispersed nature of the catalytic Pt centers and the successful construction of PtAg−Au trimetallic interfaces makes the current nanostructure an ideal system to allow for a synergetic effect between Pt, Au, and Ag, leading to improved electrocatalysis. Compared with commercial Pt/C, our PtAg-on-Au heterogenous nanoplates exhibit superior mass activity, along with enhanced reaction kinetics and long-term durability for FAOR in an acidic medium. Density functional theory (DFT) simulation results indicate that AgPtAu(111) exhibits a relatively high activity for HCOOH oxidation into CO2 among the various Au-based catalysts. This work provides a viable strategy for constructing Pt-based electrocatalysts with controlled Pt ensembles, offering insights into the development of fuel cell catalysts that make highly efficient use of costly noble metals.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 11","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665003","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

New Ceramic Material Y2-xVxO3+x – Mechanochemical Synthesis and Some Physicochemical Properties 新型陶瓷材料 Y2-xVxO3+x - 机械化学合成及某些物理化学特性

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2024-10-18 DOI: 10.1002/cnma.202400337

Mateusz Piz, Elżbieta Filipek, Kamil Kwiatkowski, Piotr Dulian, Wojciech Bąk, Rafał J. Wróbel

{"title":"New Ceramic Material Y2-xVxO3+x – Mechanochemical Synthesis and Some Physicochemical Properties","authors":"Mateusz Piz, Elżbieta Filipek, Kamil Kwiatkowski, Piotr Dulian, Wojciech Bąk, Rafał J. Wróbel","doi":"10.1002/cnma.202400337","DOIUrl":"https://doi.org/10.1002/cnma.202400337","url":null,"abstract":"Potential applications of known compounds from the V2O-Y2O3 system, i. e. YVO4, Y8V2O17 and Y10V2O20, were the inspiration to undertake research, the main goal of which was to determine whether unknown phases of the solid solution type are formed in this system. Solid solutions are still sought-after phases because their properties depend on their chemical composition. In this work it was experimentally demonstrated that a new substitute solid solution with the formula Y2-xVxO3+x (0.00<×<0.60) is formed from mixtures of V2O5 with Y2O3 as a result of mechanochemical synthesis. Its properties were examined by using, i.a. XRD (X-ray diffraction) and UV-Vis-DRS (ultraviolet-visible light spectroscopy with diffusion reflectance) methods. It was found among other things, that it crystallizes in a regular system, exhibits a Y2O3 structure and is thermally stable up to at least 800 °C (for x=0.40). Moreover, the estimated value of the band gap width indicated that the solid solution Y2-xVxO3+x belongs to the class of semiconductors. The study of dielectric properties of new phase was performed by means of broadband dielectric spectroscopy. The obtained measurement data showed the presence of relaxation type dielectric mechanisms. The thermally activation energies of the relaxation processes related to the electric conductivity were calculated.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"10 11","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665039","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

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

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":"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,” ChemNanoMat 2, no. 4 (2016): 307–314, https://doi.org/10.1002/cnma.201500229.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.","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

Optimized Tungsten Disulfide via Pyrolytic Deposition for Improved Zn-ion Batteries 通过热解沉积优化二硫化钨以改进锌离子电池

IF 3.8 4区材料科学

ChemNanoMat Pub Date : 2024-09-18 DOI: 10.1002/cnma.202400426

Yiting Wang, Xinran Zhao, Ruirui Cao, Jun Yang

引用次数: 0

Alkalized MQDs /Bi2S3 Porous Structure For Efficient Photocatalytic CO2 Reduction 用于高效光催化二氧化碳还原的碱化 MQDs /Bi2S3 多孔结构

IF 3.8 4区材料科学

ChemNanoMat Pub Date : 2024-09-18 DOI: 10.1002/cnma.202400466

Shijun Zhang, Jun Zhou, Xinjun You, MATHIVANAN KRISHNAMURTHY, Chunqian Gou, Lei Gong, Lingling Li, Qinwei Jia

引用次数: 0

Construction of Nano ZnV2O4/N-Doped Porous Carbon Composites with Optimized Ionic and Electronic Conductivities as Competitive Cathodes toward Zinc-Ion Capacitors 构建具有优化离子和电子电导率的纳米 ZnV2O4/N 掺杂多孔碳复合材料，作为锌离子电容器的竞争性阴极

IF 3.8 4区材料科学

ChemNanoMat Pub Date : 2024-09-17 DOI: 10.1002/cnma.202400445

Hao Jiang, Peng Yue, Qinchao Gao, Shujia Zhang, Mushen Gao, Jinlong Wang, Yang Liu, Linrui Hou, Changzhou Yuan

{"title":"Construction of Nano ZnV2O4/N-Doped Porous Carbon Composites with Optimized Ionic and Electronic Conductivities as Competitive Cathodes toward Zinc-Ion Capacitors","authors":"Hao Jiang, Peng Yue, Qinchao Gao, Shujia Zhang, Mushen Gao, Jinlong Wang, Yang Liu, Linrui Hou, Changzhou Yuan","doi":"10.1002/cnma.202400445","DOIUrl":"https://doi.org/10.1002/cnma.202400445","url":null,"abstract":"Zinc-ion capacitors (ZICs) have great potential for energy storage applications due to high safety, environmental friendliness, low cost, and high energy density. However, challenges such as poor ion diffusion kinetics and the low conductivity of cathode materials still need to be addressed. Nano ZnV2O4/nitrogen-doped porous carbon (ZVO/N-PC) composites are efficiently synthesized via a simple annealing process. Highly crystalline ZVO nanoparticles are in-situ grown on the three-dimensional N-PC surface by precisely tuning the ratio of the vanadium source, achieving a dual enhancement in electronic and ionic conductivities. Benefiting from the nanoengineering build-up, the optimized ZVO-0.6/N-PC anode exhibits impressive rate performance (405.9/308.8 mAh g–1 at 0.2/5.0 A g–1) and cycling capability (0.0029% capacity drop per cycle at 5.0 A g–1 after 5,800 cycles). Using nitrogen-doped porous activated carbon (N-PAC) as the anode and ZVO-0.6/N-PC as the cathode, the assembled ZICs deliver a high energy density of 27.5 Wh kg–1 at a power density of 450.0 W kg–1. After 10,000 cycles at 1.0 A g–1, the capacity retention rate remains as 72.8%, demonstrating excellent cycling stability. This highlights the promising application of nano ZVO/N-PC composites towards ZICs as competitive cathodes.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"6 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266591","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

Amino Acid Adsorption onto Magnetic Nanoparticles Reveals Correlations with Physicochemical Parameters 磁性纳米粒子上的氨基酸吸附与理化参数的相关性

IF 3.8 4区材料科学

ChemNanoMat Pub Date : 2024-09-13 DOI: 10.1002/cnma.202400280

Alexander Daniel Sapp, Carlos Eduardo Díaz-Cano, Jozef Lengyel, Lucía Abarca-Cabrera, Paula Fraga-García

{"title":"Amino Acid Adsorption onto Magnetic Nanoparticles Reveals Correlations with Physicochemical Parameters","authors":"Alexander Daniel Sapp, Carlos Eduardo Díaz-Cano, Jozef Lengyel, Lucía Abarca-Cabrera, Paula Fraga-García","doi":"10.1002/cnma.202400280","DOIUrl":"https://doi.org/10.1002/cnma.202400280","url":null,"abstract":"We analyze the adsorption of the proteinogenic amino acids (AAs) glutamine, glutamic acid, lysine, tyrosine, proline, and valine onto bare iron oxide nanoparticles (approx. 10 nm). Aiming to identify the governing principles of low molecular weight corona, which remain underinvestigated, our study covers broad concentration ranges up to the solubility limit of the AAs. Isothermal experiments reveal that the highly soluble AAs valine, proline, and lysine form extensive multilayers on the nanoparticle surface, and infrared measurements indicate intermolecular interactions, particularly with valine and lysine, for higher AA contents. Conversely, the low solubility of tyrosine and glutamic acid restricts their adsorption capacity, despite their higher partitioning on the solid surface. Parameters derived from fitting a classic saturation model seem to align with well‐documented physicochemical properties such as the hydrophobicity and the complexity indices—a promising first step towards formulating design principles. Scaling these parameters by the AA solubility reveals a clear correlation with the adsorption behavior. In adsorption experiments with AA model mixtures, sequential incubation increases the adsorption capacity for valine and proline, whereas simultaneous incubation with these AAs reduces tyrosine’s capacity. Future studies should seek to elucidate novel adsorption patterns to advance our understanding of corona growth and evolution mechanisms","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"9 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266593","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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