ChemNanoMat最新文献_第6页

Polymeric Antimicrobial Coating Incorporating Spray-Dried Hierarchical Copper and Silver-Doped Copper Microparticles 含有喷雾干燥分级铜和掺银铜微粒的聚合抗菌涂层

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-08-09 DOI: 10.1002/cnma.70348

Debashish Sarkar, Pallavi Chandwadkar, Celin Acharya

{"title":"Polymeric Antimicrobial Coating Incorporating Spray-Dried Hierarchical Copper and Silver-Doped Copper Microparticles","authors":"Debashish Sarkar, Pallavi Chandwadkar, Celin Acharya","doi":"10.1002/cnma.70348","DOIUrl":"https://doi.org/10.1002/cnma.70348","url":null,"abstract":"Copper (Cu)- and silver (Ag)-based composite coatings on fomite surfaces have been shown to be effective in reducing the spread of pathogens such as viruses and antibiotic-resistant bacteria. Herein, a facile, scalable, one-step spray-drying protocol using ascorbic acid as a green reducing agent and water as the solvent was developed to prepare Cu and Ag-doped Cu microparticles for subsequent composite antimicrobial coating preparation. Silver doping affected the overall particle size and the hierarchical structure within a particle, as evidenced by dynamic light scattering, small-angle X-ray scattering, and electron microscopy. Crystallinity was confirmed by X-ray and electron diffraction, while the distribution of silver and copper within the spray-synthesized microparticles was assessed through EDX elemental mapping and X-ray photoelectron spectroscopy. Composite coatings were prepared by embedding the microparticles in polymethyl methacrylate (PMMA) matrix via in situ free radical polymerization using benzoyl peroxide and applied on glass and stainless-steel substrates. The antimicrobial efficacy of these composite coatings was determined by observing complete inhibition of Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus bacterial strains. The practicality of the approach was further demonstrated by coating a fomite surface, a stainless-steel door knob, with the microparticle-embedded PMMA composite and observing complete inhibition of bacterial growth.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753021","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

Dynamic AuZn Phase Formation Stabilizes CO2 Hydrogenation to Syngas 动态AuZn相形成稳定CO2加氢制合成气

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-08-05 DOI: 10.1002/cnma.70343

Qaisar Maqbool, Klaus Dobrezberger, Günther Rupprechter

{"title":"Dynamic AuZn Phase Formation Stabilizes CO2 Hydrogenation to Syngas","authors":"Qaisar Maqbool, Klaus Dobrezberger, Günther Rupprechter","doi":"10.1002/cnma.70343","DOIUrl":"https://doi.org/10.1002/cnma.70343","url":null,"abstract":"Controlling selectivity and activity in CO2 hydrogenation remains a challenge in the synthesis of sustainable fuels. We investigated a 1 wt.% Au/ZnO catalyst by AUROlite for CO2 hydrogenation at 20 bar, combining kinetic evaluation with temperature-programmed desorption (TPD), scanning transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy (STEM-EDX) and X-ray diffraction (XRD) characterization to link performance to structural dynamics. Au/ZnO exhibited high activity for reverse water–gas shift (RWGS). This enhanced intrinsic activity correlates well with the small Au particle size of ∼2 nm. During 24-h stability tests, CO2 conversion and CO and CH4 yields remained constant, concurrent with the emergence of an AuZn phase in XRD. H2-TPD revealed pronounced changes in the catalyst surface, with the initial H2 desorption at 155 °C disappearing after reaction, consistent with significant surface restructuring and possibly alloying. STEM-EDX indicated intimate Au–ZnO contact after reaction, a configuration consistent with the alloyed domains inferred from XRD and with the observed catalytic behavior. The results suggest that the small Au particle size together with dynamic AuZn phase formation and ZnO redeposition stabilizes active sites, reflected in the nearly constant CO2 conversion and CO and CH4 yields. Further mechanistic studies into the role of the AuZn phase are proposed to clarify its influence and to guide catalyst design for CO2 valorization.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.70343","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752843","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

Experimental and Theoretical Investigation of Ammonia Borane Dehydrogenation Using an Aniline-Enhanced Ru Nanocatalyst 苯胺增强Ru纳米催化剂对氨硼烷脱氢的实验与理论研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-30 DOI: 10.1002/cnma.70334

Mehmet Sait İzgi, Ömer Şahin, Erhan Onat, Muhammed Enisoğlu, Fatih Ahmet Celik, Ezman Karabulut

{"title":"Experimental and Theoretical Investigation of Ammonia Borane Dehydrogenation Using an Aniline-Enhanced Ru Nanocatalyst","authors":"Mehmet Sait İzgi, Ömer Şahin, Erhan Onat, Muhammed Enisoğlu, Fatih Ahmet Celik, Ezman Karabulut","doi":"10.1002/cnma.70334","DOIUrl":"https://doi.org/10.1002/cnma.70334","url":null,"abstract":"This study aimed to synthesize carbon quantum dots (CQDs) through the interaction of carboxyl (-COOH) and amino (-NH2) groups and to investigate experimentally and theoretically hydrogen (H2) production efficiency from ammonia borane (AB) hydrogen source using this CQDs structure with ruthenium (Ru) catalyst support material. CQDs were obtained by the hydrothermal method from aniline (A) and trichloroacetic acid (TCA) under weak base–acid coupling. A heterogeneous Ru@ATCA catalyst is developed using Ru metal nanoclusters decorated on CQDs. The development process is characterized by advanced analytical methods (UV, PL, BET, ICP-OES, TEM, XPS, XRD). As a result of the AB catalytic reaction at 298 K, a very high Hydrogen Production Rate (HGR) of 102.1 L/g.min and a catalyst cycle frequency (TOF) of 356 min−1 are obtained. The reaction proceeds in a first-order manner, with activation energy (Ea) of 22.3 kJ/mol, activation enthalpy and entropy of 19.65 and −29.95 J/mol, respectively. The mesoporous structures under this interaction, the increase in active surface area increases H2 production efficiency by providing lower viscosity for both AB hydrolysis and the surrounding molecular groups. The H2 production efficiency is compared with GFN1xTB modeling. According to modeling, the Ru activity of the weak acid TCA alone has a weaker catalytic effect than the Ru activity resulting from its interaction with the weak base aniline molecule, demonstrating the importance of the weak acid and weak base interactions.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617119","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

Comparative Electrochemical Study of Tetra-Carboxylate Linked Ni-MOF and Cr-MOF for Supercapacitor Application 四羧酸盐连接Ni-MOF和Cr-MOF在超级电容器中的电化学比较研究

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-30 DOI: 10.1002/cnma.70338

Sai P. Katke, Gaurav Singh, Tanzeem Fatema, Darshna Potphode, Suresh D. Pawar

{"title":"Comparative Electrochemical Study of Tetra-Carboxylate Linked Ni-MOF and Cr-MOF for Supercapacitor Application","authors":"Sai P. Katke, Gaurav Singh, Tanzeem Fatema, Darshna Potphode, Suresh D. Pawar","doi":"10.1002/cnma.70338","DOIUrl":"https://doi.org/10.1002/cnma.70338","url":null,"abstract":"Metal organic frameworks (MOFs) have emerged as promising electrode materials for supercapacitors owing to their high porosity, large specific surface area, structural tunability, and inherent redox activity. In the present work, an amorphous nickel-based MOF (Ni-MOF) and a low-crystalline chromium-based MOF (Cr-MOF) were synthesized via a solvothermal route using a tetra-carboxylate organic linker. The structural, chemical, and morphological features of the synthesized materials were examined using FT-IR, PXRD, TGA, BET, XPS, and SEM. The Ni-MOF exhibited a spherical morphology that facilitated electrolyte penetration and ion transport, whereas the Cr-MOF displayed a fibrous compact structure, which limited electrolyte ion diffusion. The Ni-MOF demonstrated a specific capacitance of 405 F g−1 at 1 A g−1, significantly surpassing the capacitance of Cr-MOF (48 F g−1 at 1 A g−1). In contrast, the Cr-MOF showed superior cycling stability, retaining 87% of its capacitance after 1000 charge−discharge cycles, whereas the Ni-MOF retained 40% after 500 cycles. The enhanced capacitance of Ni-MOF is mainly attributed to the redox-active nickel centers and improved charge-transfer kinetics, while the chromium centers impart higher stability in Cr-MOF. This work highlights the potential of amorphous-like MOFs in supercapacitor applications and provides insights for further optimization of MOF-based energy storage materials.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617117","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

Fe3O4/Reduced Graphene Oxide/ZnAl-Layered Double Hydroxides Composite for the Adsorption of Methyl Orange and Brilliant Green From Aqueous Solution Fe3O4/还原氧化石墨烯/锌层状双氢氧化物复合材料对水溶液中甲基橙和亮绿的吸附

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-30 DOI: 10.1002/cnma.70336

Kitayanan Yingprasert, Ketsarin Seebunrueng, Purim Jarujamrus, Suparb Tamuang

{"title":"Fe3O4/Reduced Graphene Oxide/ZnAl-Layered Double Hydroxides Composite for the Adsorption of Methyl Orange and Brilliant Green From Aqueous Solution","authors":"Kitayanan Yingprasert, Ketsarin Seebunrueng, Purim Jarujamrus, Suparb Tamuang","doi":"10.1002/cnma.70336","DOIUrl":"https://doi.org/10.1002/cnma.70336","url":null,"abstract":"The discharge of dye-containing wastewater poses severe ecological threats, requiring efficient and recoverable adsorbents. Here, a magnetic Fe3O4/rGO/ZnAl-LDH composite was synthesized via a green, one-step in situ process where graphene oxide acted as an oxidizing agent for Fe3O4 generation, followed by electrostatic and hydrogen-bonded deposition of ZnAl-LDH platelets. The composite exhibited an enhanced BET surface area of 11.13 m2 g−1 and a high saturation magnetization (Ms) of 57.2 emu g−1, enabling rapid magnetic separation. Adsorption performance was evaluated using methyl orange (MO, anionic) and brilliant green (BG, cationic). At optimal conditions, MO adsorption reached equilibrium within 60 min across pH 4–10, while BG required 360 min at pH 6–7. Nonlinear regressions revealed that both dyes followed pseudo-second-order kinetics and the Langmuir isotherm, yielding maximum capacities of 301.92 mg g−1 (MO) and 307.06 mg g−1 (BG). MO removal involved electrostatic interaction and anion exchange, whereas BG removal was driven by electrostatic attraction and π–π stacking. Furthermore, the composite maintained high efficiencies over five recycling cycles, demonstrating strong potential as a reusable and scalable adsorbent for wastewater treatment.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617118","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

Hybridizing Black Phosphorus Nanosheets and Multishaped Silver Nanoparticles for Surface-Enhanced Raman Scattering Detection of Rhodamine B in Chili Powder 杂化黑磷纳米片和多形银纳米片用于表面增强拉曼散射检测辣椒粉中的罗丹明B

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-30 DOI: 10.1002/cnma.70341

Le Ngoc Thu Nguyen, Hoai Nhan Luong, Ngoc Bao Tri Pham, Nhat Minh Nguyen, Le Thai Duy, Cong Khanh Tran, Phan Phuong Ha La, Vinh Quang Dang

{"title":"Hybridizing Black Phosphorus Nanosheets and Multishaped Silver Nanoparticles for Surface-Enhanced Raman Scattering Detection of Rhodamine B in Chili Powder","authors":"Le Ngoc Thu Nguyen, Hoai Nhan Luong, Ngoc Bao Tri Pham, Nhat Minh Nguyen, Le Thai Duy, Cong Khanh Tran, Phan Phuong Ha La, Vinh Quang Dang","doi":"10.1002/cnma.70341","DOIUrl":"https://doi.org/10.1002/cnma.70341","url":null,"abstract":"Despite the low detection limits reported in previous surface-enhanced Raman scattering (SERS) studies for Rhodamine B (RhB, a dye prohibited in food products because of its potential risk to human health even at very low concentrations), further improvement in sensitivity is still required for trace-level analysis. In this work, a hybrid SERS substrate based on multishaped silver nanoparticles (MAgNPs) and black phosphorus nanosheets (BPNS) was developed as a simple and rapid method for the sensitive detection of RhB in chili powder (a spice widely consumed worldwide). The combination of the strong plasmonic effect of MAgNPs and the matching of energy levels between BPNS and RhB facilitates charge transfer, thereby improving the Raman response. The developed SERS substrate (MAgNPs/BPNS on Si wafer) achieved remarkable limits of detection: 8.2 × 10−8 ppm (i.e., 82 parts-per-quadrillion) in standard solution and 6.9 × 10−11 g/g in chili powder, with recoveries of 94.8%–99.5% and acceptable precision, demonstrating its potential for trace-level RhB monitoring in practical food safety applications.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148617116","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

Correction to “Hybrid Alkoxysilane-Gold Nanostructure Coatings on FTO Electrodes for Tailored Electrochemical Interfaces” 修正“用于定制电化学界面的FTO电极上的杂化烷氧基硅烷-金纳米结构涂层”

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-24 DOI: 10.1002/cnma.70333

Anna Wcisło, Sandra Leszczyńska, Agata Kowalska, Beata Grobelna

{"title":"Correction to “Hybrid Alkoxysilane-Gold Nanostructure Coatings on FTO Electrodes for Tailored Electrochemical Interfaces”","authors":"Anna Wcisło, Sandra Leszczyńska, Agata Kowalska, Beata Grobelna","doi":"10.1002/cnma.70333","DOIUrl":"https://doi.org/10.1002/cnma.70333","url":null,"abstract":"Wcisło A., Leszczyńska S., Kowalska A., Grobelna B.; Hybrid Alkoxysilane-Gold Nanostructure Coatings on FTO Electrodes for Tailored Electrochemical Interfaces, ChemNanoMat, 2026; 12:e202500587, https://doi.org/10.1002/cnma.202500587.Errors were identified in the author lists of references [2, 16, 38] and [39]. The corrected information is provided below: • Reference [2]: Incorrect: A. Cirocka, K. Zaraska, K. Mech, and A. Sulka Correct: A. Cirocka, D. Zarzeczańska and A. Wcisło • Reference [16]: Incorrect: A. Domaros, M. Śmietana, K. Lechowicz, D. Burnat, and R. Bogdanowicz Correct: A. Cirocka, D. Zarzeczańska, T. Ossowski and A. Wcisło • Reference [38]: Incorrect: A. Kowalska, E. Szczepańska, K. Lechowicz, and M. Śmietana Correct: A. Kowalska, E. Adamska and B. Grobelna • Reference [39]: Incorrect: E. Szczepańska, A. Kowalska, K. Lechowicz, and M. Śmietana Correct: E. Szczepańska, A. Synak, P. Bojarski, P. Niedziałkowski, A. Wcisło, T. Ossowski and B. GrobelnaThe remaining reference details (title, journal, DOI) are correct.We apologize for this error.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnma.70333","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615617","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

Nanomaterial-Based Fluoride Sensors: Design Principles and Environmental Applications 基于纳米材料的氟传感器：设计原则和环境应用

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-24 DOI: 10.1002/cnma.202500808

Nidhi Rai, Archana Markam, Shashank S. Rathore, Gokul R. Nishad, Sagar K. Rajak, Sangeeta Gupta, Bharat L. Sahu, Bijnaneswar Mondal

{"title":"Nanomaterial-Based Fluoride Sensors: Design Principles and Environmental Applications","authors":"Nidhi Rai, Archana Markam, Shashank S. Rathore, Gokul R. Nishad, Sagar K. Rajak, Sangeeta Gupta, Bharat L. Sahu, Bijnaneswar Mondal","doi":"10.1002/cnma.202500808","DOIUrl":"https://doi.org/10.1002/cnma.202500808","url":null,"abstract":"This review is a critical and detailed discussion of nanomaterial-based sensors of fluoride to be used in the environment. In contrast to other reviews, which focus mostly on the summarisation of material types and sensing mechanisms, the review is oriented towards a comparative and application-based approach with a stronger emphasis on the advantages and deficiencies of different sensing platforms, such as carbon materials, metal and metal oxide nanoparticles, quantum dots and metal-organic structures. Particular emphasis is put on new systems, including perovskite materials, wearable sensors and hybrid nanostructures that provide a higher level of sensitivity and real-time sensing. Moreover, this review critically evaluates such critical challenges as selectivity in complex matrices, stability, toxicity and scalability and the gap between laboratory-scale performance and real application in the environment. This work offers new input and design solutions to the creation of the next generation of fluoride-sensing technologies through the combination of recent developments with the perspective of using real samples and reducing their environmental impact.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615621","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

Palladium-Engineered Stainless Steel Mesh for Efficient Alkaline Hydrogen Evolution 钯工程不锈钢网高效碱氢演变

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-24 DOI: 10.1002/cnma.70331

Gazi Jahirul Islam, Shaheda Zannah, Abdulmajid A. Mirghni, Syed Shaheen Shah, Abbas Saeed Hakeem, Abdul-Rahman Faisal Al-Betar, Md. Abdul Aziz

{"title":"Palladium-Engineered Stainless Steel Mesh for Efficient Alkaline Hydrogen Evolution","authors":"Gazi Jahirul Islam, Shaheda Zannah, Abdulmajid A. Mirghni, Syed Shaheen Shah, Abbas Saeed Hakeem, Abdul-Rahman Faisal Al-Betar, Md. Abdul Aziz","doi":"10.1002/cnma.70331","DOIUrl":"https://doi.org/10.1002/cnma.70331","url":null,"abstract":"Developing durable and cost-effective electrocatalysts for the hydrogen evolution reaction (HER) in alkaline media is critical for practical water electrolysis. Herein, we report a simple electrodeposition strategy to engineer commercial stainless steel mesh (SSM) with palladium (Pd) nanostructures, producing a high-performance Pd/SSM electrode for alkaline HER. Structural and morphological analyses confirm the successful formation of crystalline Pd nanodomains uniformly distributed over the three-dimensional conductive mesh while preserving the integrity of the stainless steel substrate. The Pd modification markedly improves HER activity in 1.0 M KOH, lowering the overpotential at 10 mA cm−2 from 350 mV for bare SSM to 119 mV for Pd/SSM. In addition, Pd/SSM exhibits a reduced Tafel slope, a much lower polarization resistance, and a higher double-layer capacitance, revealing accelerated charge–transfer kinetics and an increased density of accessible active sites. Chronopotentiometric measurements further demonstrate excellent operational durability over 24 h at 10, 50, and 100 mA cm−2, with minimal potential drift under continuous cathodic operation. Post-stability XRD and ICP-OES analyses confirmed the structural and compositional stability of the Pd/SSM electrode. This work demonstrates an effective route for transforming a low-cost commercial metal mesh into a robust and efficient HER electrode while minimizing noble-metal usage for scalable alkaline hydrogen production.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615616","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

Molecular Insights on the Pore Structure Ordering of Mesoporous Silica Catalysts Synthesised From Geothermal Silica Scaling: Alcohol Co-Solvent Effects 热氧化硅结垢合成介孔二氧化硅催化剂孔结构有序的分子观察：醇共溶剂效应

IF 2.6 4区材料科学

ChemNanoMat Pub Date : 2026-07-24 DOI: 10.1002/cnma.70329

Arum Patriati, Muflikhah, Latifah Hauli, Muhammad Safaat, Aprilia Nur Tasfiyati, Nadi Suparno, Anggoro Tri Mursito, Rodiansono, Siriwat Soontaranoon, Kathleen Wood, Indri Badria Adilina

{"title":"Molecular Insights on the Pore Structure Ordering of Mesoporous Silica Catalysts Synthesised From Geothermal Silica Scaling: Alcohol Co-Solvent Effects","authors":"Arum Patriati,  Muflikhah, Latifah Hauli, Muhammad Safaat, Aprilia Nur Tasfiyati, Nadi Suparno, Anggoro Tri Mursito,  Rodiansono, Siriwat Soontaranoon, Kathleen Wood, Indri Badria Adilina","doi":"10.1002/cnma.70329","DOIUrl":"https://doi.org/10.1002/cnma.70329","url":null,"abstract":"Mesoporous silica from geothermal silica scaling (GMS) was synthesised using hexadecyl-trimethyl-ammonium bromide (CTAB) as a pore template and various alcohols such as ethanol, propanol and butanol as co-solvents. Formation of ordered hexagonal pore structures of GMS was observed in the case of ethanol and propanol, whereas a non-ordered structure was seen for butanol. A comprehensive small angle neutron scattering (SANS) and small angle X-ray scattering (SAXS) study was carried out to understand the details of structural and pore characteristics formed during the synthesis at different temperatures, and it is evident that the presence of the alcohol co-solvents highly affects the packing and charge of the surfactant micelles, which manipulates the ordering of the pore structure. The oblate ellipsoid micelle has only one preferred assembling direction on its relatively flat surface, while the assembling direction for the prolate ellipsoid micelle can potentially occur in two ways, which results in GMS having two ordered pore sizes in the case of propanol. Catalytic testing demonstrates that GMS has promising catalytic activity to produce bio-based platform chemical, that is, levulinic acid to methyl levulinate.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":"12 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615618","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