Abdul Jabbar Khan, Muhammad Sajjad, Yong Che, Ling Gao, Guowei Zhao
{"title":"Recent Advances in Mxene Quantum Dots for High-Performance Supercapacitor Applications: Synthesis, Mechanisms, and Future Prospects.","authors":"Abdul Jabbar Khan, Muhammad Sajjad, Yong Che, Ling Gao, Guowei Zhao","doi":"10.1002/asia.70983","DOIUrl":"https://doi.org/10.1002/asia.70983","url":null,"abstract":"<p><p>MXene quantum dots (MXQDs), produced by downsizing two-dimensional MXenes into zero-dimensional nanostructures, have emerged as promising materials for next-generation supercapacitors owing to their quantum confinement, metallic conductivity, abundant surface terminations, and excellent dispersibility. This review summarizes recent advances in MXQDs with emphasis on the synthesis structure-property-performance relationship governing their electrochemical behavior. Various synthesis strategies, including hydrothermal, microwave-assisted, laser-induced, and acousto-microfluidic methods, are discussed in relation to their effects on size, crystallinity, morphology, and surface chemistry. Advanced characterization techniques, including XRD, Raman, FTIR, TEM/HRTEM, and AFM, are highlighted for elucidating crystal structure, defect states, and surface functional groups. The effects of quantum confinement, heteroatom doping, defect engineering, and surface terminations on charge-transfer kinetics, ion diffusion, and pseudocapacitive behavior are critically examined. Furthermore, recent developments in MXQD-based electrode architectures, including carbon-, hydroxide-, and conducting polymer-based composites, as well as flexible and transparent supercapacitors, are evaluated with respect to their electrochemical performance. Finally, the remaining challenges, including precise control of surface terminations, aggregation, long-term stability, and scalable synthesis, are discussed together with future perspectives for the rational design and practical implementation of high-performance MXQD-based supercapacitors.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":"e70983"},"PeriodicalIF":3.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890456","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":"LLZO-Based Solid-State Lithium Metal Batteries: Electrolyte Regulation and Interface Optimization Strategies.","authors":"Caiwei Cheng, Zhenqi Gu, Tianbao Zhao","doi":"10.1002/asia.70899","DOIUrl":"10.1002/asia.70899","url":null,"abstract":"<p><p>Solid-state lithium-metal batteries (SSLMBs) are regarded as a next-generation electrochemical energy storage technology due to their potential for high energy density and enhanced safety. As a critical component, solid-state electrolytes (SSEs) significantly influence the performance of SSLMBs. Among various SE types, garnet-type Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> (LLZO) electrolytes exhibit notable chemical stability against lithium metal, thereby attracting considerable attention. However, LLZO-based SSLMBs are still plagued by short-circuit failures caused by lithium dendrites. This review elucidates the origins of the issues related to SSEs, focusing on inherent imperfections such as high porosity and electron leakage at grain boundaries, as well as challenges at the interface between the SSEs and the lithium metal anode, including poor solid contact. Additionally, we summarize current strategies and recent research advances addressing lithium dendrite formation in garnet-type SSLMBs, aiming to support future development and technological breakthroughs in this energy storage technology.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":"e70899"},"PeriodicalIF":3.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13541630/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148885856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multi-Emissive Solid State Carbon Dots Modified With Ligands for Recognition of Latent Fingerprints.","authors":"Nirmiti Mate, Khushi Jain, Shaikh M Mobin","doi":"10.1002/asia.70971","DOIUrl":"10.1002/asia.70971","url":null,"abstract":"<p><p>Solid-state fluorescent materials with tunable visible emission are highly desirable for high-contrast latent fingerprint (LFP) visualization; however, most carbon dots (CDs) undergo aggregation-caused quenching in the solid state. In this study, we present a ligand-directed approach to engineer aggregation-induced emission (AIE)-active CD powders with tunable solid-state fluorescence (SSF) for forensic applications. The hydrothermally synthesized nitrogen-doped humic acid-derived carbon dots (N-hCDs) were functionalized with two aromatic aldehydic ligands via Schiff-base chemistry, producing CDs@I and CDs@D that display distinct light-red and yellow solid-state emission. The emission tuning arises from ligand-induced modulation of surface states, restricted intramolecular motion, and ordered lamellar self-assembly, which together suppress nonradiative decay in the aggregated state. The SSF powders enable high-contrast visualization of LFPs on diverse nonporous substrates, resolving level-2 and level-3 ridge features under UV illumination. Moreover, the materials exhibit excellent thermal stability, photostability, and aging resistance, underscoring their robustness for practical forensic applications. This work demonstrates a versatile surface-engineering strategy for color-tunable solid-state emissive CDs, broadening their utility in LFPs detection.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":"e70971"},"PeriodicalIF":3.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13541629/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148885865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Heng Zhou, Jia-Cong Tan, Yao Huang, Zi-Qian Yi, Wen Zhang, Kai-Qi Ye, Shang Cao, Yi Lu, Wei Geng, Xiao-Yu Yang
{"title":"Enhanced Long-Term Barrier and Corrosion Protection of Epoxy Coatings Modified With Silica Nano-Oil.","authors":"Heng Zhou, Jia-Cong Tan, Yao Huang, Zi-Qian Yi, Wen Zhang, Kai-Qi Ye, Shang Cao, Yi Lu, Wei Geng, Xiao-Yu Yang","doi":"10.1002/asia.70982","DOIUrl":"https://doi.org/10.1002/asia.70982","url":null,"abstract":"<p><p>In marine environments, epoxy coatings suffer from the penetration of corrosive species through microstructural defects and interfacial discontinuities, causing a rapid degradation in barrier performance during service. Nano-oil can alleviate the aggregation and poor interfacial compatibility of conventional nano filler in epoxy. Here, we synthesized the SiO<sub>2</sub> nano-oil by γ-Glycidoxypropyltrimethoxysilane functionalization and ring-opening grafting with bis(3-aminopropyl)-terminated polydimethylsiloxane and then incorporated it into epoxy coatings. SiO<sub>2</sub>-K@PDMS exhibited liquid-like characteristics such as shear-thinning behavior and low surface tension. Electrochemical impedance spectroscopy results showed that the 4 wt% SiO<sub>2</sub>-K@PDMS/EP system achieved an initial |Z| at 0.01 Hz of 1.73 × 10<sup>10</sup> Ω·cm<sup>2</sup>, 436 times that of pure EP. After immersion in 3.5 wt% NaCl solution for 30 d, its |Z| at 0.01 Hz remained at 3.07 × 10<sup>9</sup> Ω·cm<sup>2</sup>, about 3.88 × 10<sup>4</sup> times that of pure EP. Scratched salt spray and fracture surface SEM results showed that SiO<sub>2</sub>-K@PDMS mitigated corrosion propagation at defect sites and reduced filler aggregation and interfacial voids, which is consistent with its superior long-term impedance retention. In addition, this filler increased the surface hydrophobicity of the coating and reduced the initial adhesion of E. coli. SiO<sub>2</sub> nano-oil shows great potential for enhancing long-term protection performance of anticorrosion coatings.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":"e70982"},"PeriodicalIF":3.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890487","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}
Meera Khatri, Amit Bijlwan, Priyanka Das, Dheeraj Kumar
{"title":"Employing 4-Amino-3,5-bis(aminomethyl)-1,2,4-triazole for the Development of Thermally Stable Energetic Salts With Reduced Sensitivity","authors":"Meera Khatri, Amit Bijlwan, Priyanka Das, Dheeraj Kumar","doi":"10.1002/asia.70974","DOIUrl":"https://doi.org/10.1002/asia.70974","url":null,"abstract":"<div>\u0000 \u0000 <p>Achieving an optimal balance between energy and stability remains a fundamental challenge in high-energy-density materials (HEDMs). Additionally, from a practical perspective, it is highly desirable to develop energetic materials via fewer and more efficient synthetic steps to facilitate broader applicability. In this context, the energetic salt formation strategy offers advantages over the corresponding neutral analogues by enabling comparable energetic properties through simpler synthetic routes. Herein, a dicationic precursor, 4-amino-3,5-bis(aminomethyl)-1,2,4-triazole (<b>1</b>), was synthesized in a single step from readily available starting materials. Subsequent reaction with energetic acids afforded a series of high-performing and physically stable energetic salts (<b>3</b>–<b>7</b>). These salts exhibit enhanced stability relative to analogous salts derived from previously reported 1,2,4-triazole-based cations. All compounds were thoroughly characterized by IR, NMR spectroscopy, and elemental analysis. Compounds <b>6</b> and <b>7</b> were confirmed through <sup>15</sup>N NMR spectroscopy, while salts <b>5</b> and <b>6</b> were elucidated through single-crystal X-ray diffraction analysis. Additionally, Hirshfeld surface analysis and 2D fingerprint plots were employed to establish structure–property relationships.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856712","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}
Virender Kumar, Ravi Kumar, Gyanendra Kumar, Dhanraj T. Masram, Vijay Kumar Goel
{"title":"Rapid Transformation of Carcinogenic 4-Nitrophenol by Nanoparticles Synthesized Using Recycled Copper Waste: A Sustainable Circular Economic Approach","authors":"Virender Kumar, Ravi Kumar, Gyanendra Kumar, Dhanraj T. Masram, Vijay Kumar Goel","doi":"10.1002/asia.70970","DOIUrl":"https://doi.org/10.1002/asia.70970","url":null,"abstract":"<div>\u0000 \u0000 <p>Novel Cu/Cu<sub>2</sub>O-nanoparticles have been synthesized by the most economical electrochemical method utilizing metallic waste. 4-NP is a toxic pollutant affecting both animal and plant kingdom, necessitating its elimination from environment. This study demonstrates that the prepared nano-catalysts efficiently catalyse the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) at room temperature under light condition. Further, the reduction process generates amine derivatives, which are intermediates in many industrial processes. This manuscript adheres to the principles of the circular economy by generating nanoparticles through the repurposing of metallic waste discarded by both industry and domestic users. Using scrapped copper from discarded air conditioner (AC) copper tubes as electrodes, we employed an electrochemical technique to develop Cu/Cu<sub>2</sub>O nanoparticles. The synthesized nanoparticles were characterized using field emission scanning electron microscopy (FE-SEM), transmission electron (TEM), EDX spectroscopy, powder x-ray diffraction (P-XRD), Fourier transformation infrared (FTIR) spectroscopy, x-ray photoelectron spectroscopy (XPS), Raman spectroscopy, cyclic voltammetry (CV), and Brunauer–Emmett–Teller (BET) analysis. Our study confirms 99% conversion of harmful 4-NP to 4-AP in a rapid reaction time of 5 min. Synthesized nanoparticles can be reused up to four times without losing catalytic activity. UV–vis spectroscopy demonstrated that reduction follows pseudo-second-order kinetics and adsorption follows Freundlich isotherm model.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856760","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":"Polyphenols at the Helm: Excited State Photophysics and Mechanistic Insights Into Protein-Aggregation Inhibition Through Ultrafast Studies","authors":"Shubhangi Majumdar, Apurva Mishra, Raktim Nath, Vijay Raj Tomar, Ambika Prasad Kar, Shashank Deep, Rahul Kar, Pramit K Chowdhury","doi":"10.1002/asia.70961","DOIUrl":"https://doi.org/10.1002/asia.70961","url":null,"abstract":"<div>\u0000 \u0000 <p>Understanding how small molecules modulate protein aggregation is pivotal for developing strategies against amyloid-related disorders. Polyphenols are promising modulators, yet the connection between their molecular photophysics and aggregation inhibition remains largely unresolved. In this article, femtosecond transient absorption spectroscopy has been employed to unravel the excited-state dynamics of some commonly used polyphenols, namely, Baicalein, EGCG, and Myricetin across varied environments—neat solvents, micelles and reverse micelles, and in the presence of globular and intrinsically disordered protein (in its native and aggregated forms). Excited-state intramolecular proton transfer (ESIPT) emerges to be highly sensitive to hydrogen-bonding, polarity, and local confinement, serving as a subpicosecond reporter of polyphenol–environment interactions. In protein systems, modulation of ESIPT dynamics signals environment-specific embedding of polyphenols within evolving protein landscapes. A unique tri-parameter correlation—linking binding affinities of the polyphenols to the native proteins, ESIPT lifetimes, and aggregation kinetics—reveals that inhibitory potency arises not from tight native binding but from selective engagement with aggregation-prone species. This work posits ESIPT as a sensitive molecular signature that links ultrafast photophysics to the functional inhibition of protein aggregation, providing new insights into how small molecules navigate complex biomolecular environments to regulate self-assembly pathways.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856690","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}
Karthikeyan L, Shobhit Mathur, Indrajit Roy, Somnath Maji
{"title":"Effects of Ligand Electronic Environment on Electrocatalytic Proton Reduction by Cobalt Complexes","authors":"Karthikeyan L, Shobhit Mathur, Indrajit Roy, Somnath Maji","doi":"10.1002/asia.70969","DOIUrl":"https://doi.org/10.1002/asia.70969","url":null,"abstract":"<div>\u0000 \u0000 <p>Here we have synthesized two mononuclear cobalt (II) complexes of type [Co(<b>L</b>)(<b>L<sup>/</sup></b>)]ClO<sub>4</sub>, where <b>L </b>= 4-methyl-N,N-bis((1-methyl-1H-benzo[d]imidazol-2-yl)methyl)aniline, <b>L</b>/ = 2,2<sup>/</sup> bipyridine (for <b>1</b>) and 4,4<sup>/</sup>-dimethyl-2,2<sup>/</sup> bipyridine (for <b>2</b>). The synthesized complexes were characterized by various spectroscopic techniques and the molecular integrity of the complexes was confirmed by the single crystal x-ray diffraction (SCXRD) analysis. The redox properties of the complexes were analyzed by Cyclic Voltammetry (CV). The electrocatalytic proton reduction studies were done using acetic acid as an external proton source in a non-aqueous medium. The overpotential for the electrocatalytic proton reduction was found to be 453 mV for <b>1</b> and 470 mV for <b>2</b>, consistent with increased electron donation to the metal center by the methyl group in <b>2</b>, which shifts the reduction potential to more negative values and alters the overpotential. The turnover frequencies (TOF) were 217 and 203 s<sup>−1</sup> for <b>1</b> and <b>2</b>, respectively. A plausible catalytic mechanism was proposed based on the experimental observations. The post-catalytic analyses confirmed the structural integrity of the catalysts, indicating homogeneous behavior under catalytic conditions. This study aims to contribute to the development of sustainable and efficient hydrogen production technologies, supporting the transition toward a sustainable energy future.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856692","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":"Phosphine-Free NNN Bis-Iminopyridine Supported Zinc(II) Catalysts: A Sustainable Platform for C─C Bond Formation Reactions via Borrowing Hydrogen Approach of Primary Alcohols","authors":"Rahul Saini, Prashant Kukreti, Tanya Pattnaik, Rahul Chauhan, Keshav Sharma, Abhishek Panwar, Sheela Kumari, Angshuman R. Choudhury, Kaushik Ghosh","doi":"10.1002/asia.70964","DOIUrl":"https://doi.org/10.1002/asia.70964","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, we present a methodology for direct C─C bond formation using renewable primary alcohols as alkylating agents, catalyzed by base metal-derived Zn(II) complexes. We utilized two well-defined phosphine-free NNN bis-iminopyridine pincer ligands (L1 and L2) for the synthesis of zinc(II) catalysts C1 and C2, which were thoroughly characterized using UV–vis, IR, HRMS, and single-crystal x-ray diffraction techniques. Both complexes C1 and C2 effectively promoted the selective mono-alkylation of a variety of carbo-nucleophile, including aromatic ketones, α-tetralone, fluorene, and oxindole, by employing both aromatic and aliphatic primary alcohols as alkyl sources. A wide range of substrates, encompassing 42 derivatives, were investigated, resulting in isolated yields as high as 92%. The developed method was successfully applied at the gram scale, demonstrating its practical applicability and potential for scalability. Additionally, control experiments were performed to elucidate the reaction mechanism, and HRMS analysis verified the presence of significant Zn(II) intermediates involved in the catalytic process.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856691","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":"Single-Atom and Subnanocluster Platforms for Next-Generation Clinical Practice: A Bench-to-Bedside Approach","authors":"Shrodha Mondal, Prithidipa Sahoo","doi":"10.1002/asia.70973","DOIUrl":"https://doi.org/10.1002/asia.70973","url":null,"abstract":"<div>\u0000 \u0000 <p>Single-atom and subnanocluster platforms are at the cutting edge of translational sensing technologies for future clinical use. Their dispersion at the atomic level ensures optimal metal utilization, clearly defined active sites, and precise control over electronic structures. By combining molecular accuracy with solid-state durability, these materials enhance the adsorption, charge transfer, and catalytic activation of key biomarkers, enabling highly sensitive and selective detection. This review covers recent progress in material design, mechanistic insights, and the integration of these materials into electrochemical and photoelectrochemical diagnostic devices. It also discusses significant challenges related to stability, scalability, and clinical adoption, all of which are crucial for transitioning from laboratory research to real-world medical applications.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 17","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856693","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}