ChemNanoMat最新文献_第4页

Doping and Phase Engineering Enhanced Ru-Doped 1T-MoS2 Electrocatalyst for Industrial Hydrogen Evolution 掺杂与相工程增强ru掺杂1T-MoS2工业析氢电催化剂

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-07-04 DOI: 10.1002/cnma.202500177

Huanping Li, Dechuan Peng, Zhishang Liu, Yanhui Song, Peizhi Liu, Junjie Guo

{"title":"Doping and Phase Engineering Enhanced Ru-Doped 1T-MoS2 Electrocatalyst for Industrial Hydrogen Evolution","authors":"Huanping Li, Dechuan Peng, Zhishang Liu, Yanhui Song, Peizhi Liu, Junjie Guo","doi":"10.1002/cnma.202500177","DOIUrl":"10.1002/cnma.202500177","url":null,"abstract":"1T-MoS2 possesses high conductivity and intrinsic hydrogen evolution reaction (HER) electrocatalytic activity with much lower price than Pt-based catalysts. However, 1T-MoS2 is metastable, which complicates its synthesis. In this study, doping and phase engineering are used to grow 1T-MoS2 nanosheets on carbon cloth (CC) by a hydrothermal method. Then, Ru is doped into the 1T-MoS2 lattice by a secondary hydrothermal method to prepare the Ru/1T-MoS2@CC electrocatalyst, as well as a self-supporting electrode. Under mild hydrothermal conditions, Ru doping can increase the electron density of states in the direction perpendicular to the basal plane of 1T-MoS2, and thus enhances its HER activity and stability. The Ru/1T-MoS2@CC catalyst exhibits an excellent full-pH electrocatalytic HER performance at large current densities: The HER overpotentials are 54 mV@10 mA cm−2 and 282 mV@500 mA cm−2 in 1 M KOH, and the HER overpotentials are 87 mV@10 mA cm−2 and 308 mV@200 mA cm−2 in 0.5 M H2SO4. In addition, the Ru/1T-MoS2@CC catalyst exhibits long-term stabilities in both acidic and alkaline solutions. This study provides a new strategy for the design of efficient and economical HER electrocatalysts, and will promote the application of hydrogen energy conversions.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100885","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

Clarification of Mn2+ Doping of CH3NH3PbBr3 Perovskite Magic-Sized Clusters CH3NH3PbBr3钙钛矿神奇尺寸簇Mn2+掺杂的澄清

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-07-04 DOI: 10.1002/cnma.202500288

David C. Zeitz, Sarah A. Creech, Mariam Khvichia, Jin Z. Zhang

{"title":"Clarification of Mn2+ Doping of CH3NH3PbBr3 Perovskite Magic-Sized Clusters","authors":"David C. Zeitz, Sarah A. Creech, Mariam Khvichia, Jin Z. Zhang","doi":"10.1002/cnma.202500288","DOIUrl":"10.1002/cnma.202500288","url":null,"abstract":"Mn2+ doping of CsPbBr3 perovskite magic-sized clusters (PMSCs) has been reported previously, where PMSCs with first excitonic absorption and photoluminescence (PL) around 425 nm were reported originally, followed by Mn2+-doped PMSCs with host absorption and PL around 400 nm. There, the observed 25 nm blueshift was attributed to smaller PMSCs or the Cl− ions introduced by MnCl2 as dopant precursor. However, subsequent studies suggest that the 400 nm band may instead be due to ligand-assisted metal halide molecular clusters (MHMCs), which lack the A component of perovskite. This raises the question whether the originally claimed Mn2+-doped PMSCs are actually MHMCs. To unambiguously address this issue, Mn2+-doped CH3NH3PbBr3 PMSCs were synthesized with PL at both 440 nm, attributed to the PMSC, and at 600 nm, attributed to Mn2+. Blueshifting of the host absorption and PL bands due to Cl− codoping is avoided by selecting MnBr2 as dopant precursor rather than MnCl2. Dopant incorporation into PMSCs is further supported by PL excitation, time-resolved PL, and electron paramagnetic resonance studies. This work provides direct and strong evidence of successful Mn2+ doping in PMSCs.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100884","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

Selectively Controlled AuNP Superstructure Hierarchical Assembly by DNAzyme Catalysis DNAzyme催化选择性控制AuNP上层结构分层组装

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-07-04 DOI: 10.1002/cnma.202500018

Ranfeng Wu, Yongpeng Zhang, Qiang Zhang, Cheng Zhang

{"title":"Selectively Controlled AuNP Superstructure Hierarchical Assembly by DNAzyme Catalysis","authors":"Ranfeng Wu, Yongpeng Zhang, Qiang Zhang, Cheng Zhang","doi":"10.1002/cnma.202500018","DOIUrl":"https://doi.org/10.1002/cnma.202500018","url":null,"abstract":"Gold nanoparticles (AuNPs) have become a promising assembly material for exploring and understanding physicochemical mechanisms in vitro and in vivo. Recent reports of AuNP superstructure assembly methods with conditional manipulation features usually require specific physicochemical triggering conditions and macroscopic control of the whole reaction system, thus lacking simple and selective regulation of the assemblies of the AuNP superstructure. In this study, a DNAzyme-based method is developed to program selectively controlled hierarchical assembly of AuNP superstructures. In which the DNAzyme-catalyzed network enabled the selective manipulation of the generation of different AuNP superstructures by programming the activation of local subsystems. First, the programming manipulation of AuNP superstructure assembly is demonstrated using four kinds of circuit programs (YES, AND, OR, and Cascade). Then, a selectively controlled superstructure cascade assembly platform is established by merging two independent cascade subsystems, utilized to achieve on-demand manipulation of the three superstructure assembly states. This work provides a simple and selective tool to simultaneously manipulate the hierarchical assembly of multiple nanoparticle superstructures for applications such as dynamic nanomachines and medical sensing.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196509","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

Electrochemical Performance of TiO2/Mn2O3 Nanocomposite in Different Electrolyte Environments TiO2/Mn2O3纳米复合材料在不同电解质环境下的电化学性能

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-30 DOI: 10.1002/cnma.202500207

Abinash Kumararaj, Suresh Perumal, Kamala Bharathi Karuppanan, Geetha Arunachalam

{"title":"Electrochemical Performance of TiO2/Mn2O3 Nanocomposite in Different Electrolyte Environments","authors":"Abinash Kumararaj, Suresh Perumal, Kamala Bharathi Karuppanan, Geetha Arunachalam","doi":"10.1002/cnma.202500207","DOIUrl":"10.1002/cnma.202500207","url":null,"abstract":"This study examines the electrochemical performance of the TiO2/Mn2O3 nanocomposite in different electrolyte environments, which is synthesized by the sol–gel method. The confirmation of the as-prepared composite material is confirmed by X-ray diffraction (XRD), Fourier transform spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. Morphological analysis is carried out using high-resolution scanning electron microscopy, while high-resolution transmission electron microscopy reveals the porous morphology, further confirming the successful presence of the nanocomposite. To enhance the electrochemical performance, potassium ferricyanide (K3[Fe(CN)6]) is introduced as a redox additive in 2M KOH electrolyte. The TiO2/Mn2O3 electrode exhibits specific capacitances of 338 Fg−1 and 594 Fg−1 at a scan rate of 5 mVs−1 and 144 Fg−1 and 1107 Fg−1 at a current density of 3 Ag−1 in KOH and RAE electrolytes, respectively. Charge–discharge cycles show improved cyclic stability and coulombic efficiency of 72.2% and 98.3% in RAE at 10 Ag−1. The enhanced electrochemical behavior can be attributed to the redox-active nature of the additive, which promotes faster ion diffusion and improved charge storage kinetics. These findings suggest that the TiO2/Mn2O3 nanocomposite, in conjunction with a redox additive electrolyte, is a promising candidate for high-performance supercapacitor applications.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102352","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

A Reverse Transcription Polymerase Chain Reaction-Based Method for Determining Aptamer–Protein Interactions at Nanoparticle Surfaces 基于逆转录聚合酶链反应的测定纳米颗粒表面适体-蛋白质相互作用的方法

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-27 DOI: 10.1002/cnma.202500301

Saketh Gudipati, Shraddha S. Sawant, Rachelle C. Canete, Patrick M. Corrigan, Jessica L. Rouge

{"title":"A Reverse Transcription Polymerase Chain Reaction-Based Method for Determining Aptamer–Protein Interactions at Nanoparticle Surfaces","authors":"Saketh Gudipati, Shraddha S. Sawant, Rachelle C. Canete, Patrick M. Corrigan, Jessica L. Rouge","doi":"10.1002/cnma.202500301","DOIUrl":"10.1002/cnma.202500301","url":null,"abstract":"Nucleic acid–protein interactions influence the activity and stability of DNA- and RNA-functionalized nanomaterials. Herein, a restriction enzyme-mediated approach coupled with reverse transcription-polymerase chain reaction (RT-PCR) for probing aptamer–protein interactions on a nanoparticle (NP) surface as a general method for identifying interactions between proteins and an RNA on a NP is described. This process is enabled by utilizing a restriction enzyme (RE)-specific sequence at the NP surface that can be masked and subsequently revealed depending on the bound state of a protein at the particle's surface. The method is suitable for investigating a specific protein interaction versus a nonspecific interaction, using an RT-PCR assay designed to detect exposed nucleic acid ligands at the NP surface. This approach is highly modular and can be applied to a variety of RNA–protein interactions for bioanalytical purposes, including as a selection pressure for in vitro selections and Systematic Evolution of Ligands by EXponential enrichment protocols.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102248","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

Advances and Perspectives in Photocatalysts for Low-Concentration CO2 Conversion 低浓度CO2转化光催化剂研究进展与展望

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-27 DOI: 10.1002/cnma.202500234

Jinwang Hu, Chunyu Liu, Liang Chen, Xingchen Jiao

引用次数: 0

PdO-CuO Nanoparticles Supported on Fe2O3 Nanoplate as Highly Effective Heterogeneous Catalyst for Suzuki–Miyaura Coupling Reaction Fe2O3纳米板负载的PdO-CuO纳米颗粒作为Suzuki-Miyaura偶联反应的高效非均相催化剂

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-24 DOI: 10.1002/cnma.202500218

Juanjuan Yin, Meining Chen, Ying Wang, Ping Zhang, Yuwen Yan, Lingjuan Ma

{"title":"PdO-CuO Nanoparticles Supported on Fe2O3 Nanoplate as Highly Effective Heterogeneous Catalyst for Suzuki–Miyaura Coupling Reaction","authors":"Juanjuan Yin, Meining Chen, Ying Wang, Ping Zhang, Yuwen Yan, Lingjuan Ma","doi":"10.1002/cnma.202500218","DOIUrl":"10.1002/cnma.202500218","url":null,"abstract":"The palladium-catalyzed Suzuki–Miyaura coupling reaction (SMC) serves as a pivotal method for constructing carbon–carbon bonds in organic synthesis. In this study, a bimetallic Pd-Cu/Fe2O3 nanoplate catalyst are rationally designed and synthesized through a sequential impregnation strategy. The phase composition, morphological features, and surface electronic states of the catalyst are systematically characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and H2-temperature-programmed reduction (TPR). Remarkably, this heterogeneous nanocatalyst exhibits outstanding catalytic activity for SMC reactions under mild temperature of 40 °C, achieving 99% product yield within 15 min in the absence of toxic solvents or phase-transfer agents. The superior catalytic performance is mainly attributed to the coexistence of Pd2+ and Pdδ+ (2 < δ < 4) on the support surface and the synergistic effect between PdO and CuO nanoparticles. Furthermore, the catalyst demonstrates excellent recyclability, retaining 90% of its initial activity after five consecutive cycles. This study provides a viable strategy for developing energy-efficient heterogeneous catalysts through bimetallic synergy.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102307","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

Assessing the Anticancer Potential of Cerium Oxide Nanoparticles with Doxorubicin in a Polymeric Nanomatrix: Histopathological and Antiangiogenic Insights 评估氧化铈纳米颗粒与多柔比星在聚合纳米基质中的抗癌潜力：组织病理学和抗血管生成的见解

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-24 DOI: 10.1002/cnma.202500186

Balasubramanian Deepika, Gopalarethinam Janani, Devadass Jessy Mercy, Saranya Udayakumar, Vijayashree Raghavan, Jane Betsy Isaac, Mudenkattil Shurfa, Agnishwar Girigoswami, Koyeli Girigoswami

{"title":"Assessing the Anticancer Potential of Cerium Oxide Nanoparticles with Doxorubicin in a Polymeric Nanomatrix: Histopathological and Antiangiogenic Insights","authors":"Balasubramanian Deepika, Gopalarethinam Janani, Devadass Jessy Mercy, Saranya Udayakumar, Vijayashree Raghavan, Jane Betsy Isaac, Mudenkattil Shurfa, Agnishwar Girigoswami, Koyeli Girigoswami","doi":"10.1002/cnma.202500186","DOIUrl":"10.1002/cnma.202500186","url":null,"abstract":"Angiogenesis plays a pivotal role in the survival of cancer tumors, and any agent that can inhibit angiogenesis can be categorized as an efficient anticancer agent. In the present study, the synergistic anticancer effect of Cerium oxide nanoparticles (CeO2) and Doxorubicin (Dox) encased in a polymeric nano matrix of chitosan and alginate (Alg@Cs@CeO2-Dox) is investigated. The product inhibits the cell migration of skin cancer cells (A375), and lung cancer cells (A549) and exhibits anti-angiogenesis in the in-ovo model with reduced blood vessel formation. Melanoma is induced in Swiss albino mice, and the anticancer effect is evident in two different concentrations of Alg@Cs@CeO2-Dox for 21 days. After treatment, the histopathological analysis of the cancer section tissue shows that the Alg@Cs@CeO2-Dox completely neutralizes the melanoma symptoms in the animal. After the analysis, it is presumed that the combination of CeO2 and Dox encased in polymeric nano matrix demonstrates a higher therapeutic effect in cancer cells and animals than the individual drugs. Further, the study can be extrapolated in other cancer models in animals.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"11 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102388","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

Front Cover: (ChemNanoMat 6/2025) 封面：（ChemNanoMat 6/2025）

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-11 DOI: 10.1002/cnma.202580601

引用次数: 0

Sodium Borohydride-Assisted Catalytic Property of BiOCl Nanoparticles for Water Remediation 硼氢化钠辅助生物二氧化硅纳米颗粒在水修复中的催化性能

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2025-06-10 DOI: 10.1002/cnma.202500148

Ratna Sarkar, Dimitra Das, Subrata Sarkar, Kalyan Kumar Chattopadhyay

引用次数: 0