ACS Materials Au最新文献

{"title":"","authors":"Pedro H. S. Borges, Natália M. Caldas, Lucas V. de Faria, Rafael M. Dornellas and Edson Nossol*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"12260–12268 XXX-XXX"},"PeriodicalIF":5.7,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsmaterialsau.5c00025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"Ioanna Itskou, Sharminaz C. Sageer, Daniel M. Dawson, Andreas Kafizas, Irena Nevjestic, Catriona M. McGilvery, Matyas Daboczi, Gwilherm Kerherve, Salvador Eslava, Sandrine Heutz, Sharon E. Ashbrook* and Camille Petit*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"12260–12268 XXX-XXX"},"PeriodicalIF":5.7,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsmaterialsau.5c00007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical Behavior of Mo₂ <i>TM</i>B₂ (<i>TM</i> = Fe, Co, Ni) upon the Oxygen Evolution Reaction (OER).","authors":"Fatma Aras, Ulrich Burkhardt, Alim Ormeci, Horst Borrmann, Simone G Altendorf, Yuri Grin, Iryna Antonyshyn","doi":"10.1021/acsmaterialsau.5c00035","DOIUrl":"10.1021/acsmaterialsau.5c00035","url":null,"abstract":"<p><p>The (electro)-chemical behavior of intermetallic compounds Mo₂ <i>TM</i>B₂ (<i>TM</i> = Fe, Co, Ni) under OER conditions has been investigated using electrochemical data combined with extensive bulk- and surface-sensitive material characterization. <i>In situ</i> formation of <i>TM</i>-rich amorphous layers, composed of oxides and hydroxides, accompanied by partial dissolution of molybdenum and boron, was observed for all three compounds. The degree of molybdenum and boron dissolution also influences the electronic state of <i>TM</i>s in their oxides/hydroxides formed on the surface of Mo₂ <i>TM</i>B₂. The <i>in situ</i>-formed Fe₂O₃ and Ni-(OH)₂ on the surface of Mo₂FeB₂ and Mo₂NiB₂, respectively, are the origin of surface passivation and their OER inactivity. At the same time, the simultaneous presence of Co₃O₄ and Co-(OH)₂ on the surface of an OER-exposed Mo₂CoB₂ electrode allows for the start of OER at a lower overpotential (ca. 290 mV) compared to elemental Co (ca. 370 mV), revealing better electrocatalytic activity. Extensive characterization of these materials as well as variation of the experimental conditions extends our understanding of the chemical properties of intermetallic compounds, which are of clear importance for their possible application as efficient electrocatalysts.</p>","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"718-731"},"PeriodicalIF":5.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257420/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Biofuel Cells Based on a Hybrid Enzymatic/Bimetallic Composite for Complete Lactate Catalytic Electrooxidation.","authors":"Jefferson Honorio Franco, João Victor Bonaldo, Shelley D Minteer, Adalgisa R De Andrade","doi":"10.1021/acsmaterialsau.5c00039","DOIUrl":"10.1021/acsmaterialsau.5c00039","url":null,"abstract":"<p><p>We describe complete lactate electrooxidation in an enzymatic biofuel cell that combines the catalytic action of the bimetallic composite Ru@Pt-CNT and the enzyme oxalate oxidase (OxOx). The Ru@Pt-CNT/OxOx hybrid electrode was 2.0-fold more catalytically active than the electrode containing the bimetallic composite only. During chronoamperometric experiments, the hybrid electrode achieved a 35% higher maximum current density (2.65 ± 0.15 mA cm^-2) than the Ru@Pt-CNT electrode. Electrochemical impedance spectroscopy showed that the hybrid electrode had lower charge transfer resistance than the Ru@Pt-CNT electrode, confirming that OxOx had a high affinity for lactate during the bioelectrocatalytic reaction on the electrode surface. Furthermore, 18-h long-term bulk electrolysis revealed that lactate electrooxidation at the Ru@Pt-CNT/OxOx hybrid electrode provided a total charge of 1.2 ± 0.2 C, which was 3-fold higher than the total charge generated by the Ru@Pt-CNT electrode. The lactate oxidation products generated at the hybrid electrode were detected during bulk electrolysis by chromatography, which showed that the hybrid biofilm harvested all 10 electrons from lactate, completely oxidizing it to CO₂. With exceptional stability and catalytic performance, the hybrid electrode acted in the multiple catabolic steps of lactate oxidation. Overall, the interaction between Ru@Pt-CNT and OxOx enhanced the assembly of lactate biofuel cells to improve lactate electrooxidation. This could pave the way for developing efficient electronic devices with promising applications in bioelectrochemistry.</p>","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"732-742"},"PeriodicalIF":5.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257398/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Sulfur Vacancy Distribution on Charge Transport across MoS₂ Monolayers: A Quantum Mechanical Study.","authors":"Hanna Kuperman Benedik, Naomi Rom, Maytal Caspary Toroker","doi":"10.1021/acsmaterialsau.4c00171","DOIUrl":"10.1021/acsmaterialsau.4c00171","url":null,"abstract":"<p><p>Molybdenum disulfide (MoS₂) monolayers are two-dimensional materials belonging to a family of materials called transition metal dichalcogenides which have been widely studied as potential semiconductors for next-generation ingredients in transistor technology. Electronic devices' performance is largely influenced by defects, and in the case of MoS₂, the most dominant defects are sulfur vacancies. The correlation between charge transport across MoS₂ and sulfur vacancies is complex and not trivial, and it is still unclear how the distribution of vacancies influences electronic conductivity. In this study, MoS₂ monolayers with various sulfur vacancies concentrations and distributions were examined using density functional theory for electronic structure properties, tight-binding (TB) theory to construct the TB Hamiltonian, nonequilibrium Green's function formalism for transmission function calculations, and Landauer-Büttiker formalism for calculating charge transport. In addition, we employed design of experiments analysis to identify important structural features influencing the calculated current and to fit an empirical model to the results. We found that higher vacancy concentrations lead to a significant increase in electron permeability, with the best results occurring when sulfur vacancies were arranged in lines with alternating presence across both layers. The ability to predict charge transport across MoS₂ monolayers based on sulfur vacancy distribution can assist in the design of functional materials with desired properties, aiming to selectively apply structural defects.</p>","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"641-655"},"PeriodicalIF":5.7,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257400/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forefront Strategies for Biomass Valorization: From Deconstruction to Bioplastic Production.","authors":"Jaya Baranwal, Danila Merino","doi":"10.1021/acsmaterialsau.5c00023","DOIUrl":"10.1021/acsmaterialsau.5c00023","url":null,"abstract":"<p><p>This Review highlights cutting-edge strategies for transforming agricultural residues into bioplastics, offering a sustainable alternative to conventional petroleum-based plastics. By focusing on the deconstruction and reassembly of nonedible agro-wastes, these methods address critical challenges such as resource competition, plastic pollution, and greenhouse gas emissions. Key techniques reviewed include biomass dissolution, hydrolysis, and thermomechanical processing, with particular emphasis on the use of greener solvents such as ionic liquids (ILs) and deep eutectic solvents (DES). These approaches demonstrate significant potential for minimizing waste, improving resource efficiency, and enabling circularity in bioplastic production. The Review also critically examines current limitations, including solvent toxicity, scalability, and economic feasibility, while identifying promising directions for future research. By integrating innovative deconstruction techniques with sustainable manufacturing practices, this work aims to unlock the full potential of agricultural residues, paving the way toward a zero-waste, biobased economy.</p>","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"610-631"},"PeriodicalIF":5.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257379/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From Kinetics to Molecular-Level Insights into Group 4 Metal Oxide Nanocrystal Synthesis.","authors":"Carlotta Seno, Christopher B Whitehead, David E Salazar Marcano, Ian Chaon, Jonathan De Roo","doi":"10.1021/acsmaterialsau.5c00032","DOIUrl":"10.1021/acsmaterialsau.5c00032","url":null,"abstract":"<p><p>Kinetic control is a powerful tool for traversing the chemical landscape toward the intended product. For group 4 metal oxide nanocrystals, the development of complex multimetallic heterostructures is still a challenge, partly due to the lack of kinetic and mechanistic understanding. Here, we study the reaction kinetics of the nonaqueous synthesis of titanium, zirconium, and hafnium oxide nanocrystals, from the decomposition of metal isopropoxide and metal halide, in the presence of tri-<i>n</i>-octylphosphine oxide (TOPO). The reaction rate depends on the metal: Ti ≫ Zr > Hf. While titanium follows an S_N1 substitution mechanism, zirconium and hafnium follow an auto-catalyzed E1 elimination. In both cases, the reaction kinetics can be tuned by varying the amount of TOPO or the chloride content due to their impact on the electronic structure of the transition state of the rate-determining step. The proposed mechanism was shown to be consistent with kinetic modeling of the data for different metal concentrations. This deeper understanding of group 4 metal oxide nanocrystal formation will facilitate access to novel heterostructures relevant for optical, catalytic, and electronic materials.</p>","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"709-717"},"PeriodicalIF":5.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257421/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nickel-Loaded 3D-Printed Electrode for In Situ Electrochemical Conversion to a Prussian Blue Analogue: Synthetic Parameter Optimization for Pseudocapacitor Applications.","authors":"Pedro H S Borges, Natália M Caldas, Lucas V de Faria, Rafael M Dornellas, Edson Nossol","doi":"10.1021/acsmaterialsau.5c00025","DOIUrl":"10.1021/acsmaterialsau.5c00025","url":null,"abstract":"<p><p>Developing cost-effective and scalable energy storage devices is critical for advancing sustainable technologies. This study presents the fabrication of a novel 3D-printed PLA/Gr/NiHCF electrode, leveraging the benefits of additive manufacturing and a systematic factorial design of experiments (DOE) approach. The motivation stems from the need for simplified production methods that deliver high-performance materials while reducing waste and energy consumption. The electrode was synthesized through a two-step process involving 3D printing of a PLA/graphite/nickel acetate (PLA/Gr/Ni) composite followed by electrochemical conversion of nickel hexacyanoferrate (NiHCF) particles. The factorial DOE methodology optimized the composition of the PLA/Gr matrix and the electrochemical deposition conditions, ensuring a robust process with reproducible outcomes. The structural and electrochemical properties of the materials were evaluated using FTIR, Raman, SEM, EDS, CV, and EIS. The PLA/Gr/NiHCF electrode exhibited outstanding electrochemical performance, with a specific capacitance (C_s) of 37.33 mF cm^-2 at 0.1 mA cm^-2 in a three-electrode system, significantly outperforming the control PLA/Gr electrode (0.58 mF cm^-2). In a two-electrode symmetrical configuration, the system delivered a C_s of 40.4 mF cm^-2 at 0.1 mA cm^-2, with excellent retention (95% over 100 cycles) and reversible Coulombic efficiency (98.3%). The electrode's pseudocapacitive behavior, driven by the surface-confined redox activity of NiHCF, was confirmed through CV and EIS analyses. The results highlight the practicality of 3D printing combined with simple electrochemical modification for producing efficient supercapacitor electrodes. This study underscores the importance of factorial DOE in optimizing material properties and establishes the PLA/Gr/NiHCF electrode as a promising candidate for scalable, sustainable energy storage applications.</p>","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 4","pages":"675-686"},"PeriodicalIF":5.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257416/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"Connor P. Cox,&nbsp;Qishen Lyu,&nbsp;Madeleine K. Wilsey,&nbsp;Likun Cai,&nbsp;Lydia R. Schultz,&nbsp;Jason R. Maher and Astrid M. Müller*,&nbsp;","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 3","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsmaterialsau.4c00161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144443836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"Simran S. Saund,&nbsp;Melissa K. Gish,&nbsp;Jeremiah Choate,&nbsp;Trung H. Le,&nbsp;Smaranda C. Marinescu and Nathan R. Neale*,&nbsp;","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":29798,"journal":{"name":"ACS Materials Au","volume":"5 3","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":5.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsmaterialsau.5c00010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144443847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}