ACS Applied Nano Materials最新文献

{"title":"Mechanically Strong and Photothermally Active Covalent Organic Framework Nanocomposite Aerogels for Applications in Gas Adsorption","authors":"Xinbo Tong,&nbsp;Brian D. Ridenour,&nbsp;Abhishek Saji Kumar,&nbsp;Shuai Feng,&nbsp;Jared Nettles,&nbsp;Jerry Y.S. Lin,&nbsp;Sui Yang and Kailong Jin*,&nbsp;","doi":"10.1021/acsanm.5c0055810.1021/acsanm.5c00558","DOIUrl":"https://doi.org/10.1021/acsanm.5c00558https://doi.org/10.1021/acsanm.5c00558","url":null,"abstract":"<p >Covalent organic framework (COF) aerogels are hierarchically porous polymeric materials with ultrahigh specific surface area, making them attractive for wide applications such as molecular capture, adsorption, and catalysis. Previous COF aerogel studies have focused on varying their chemical structures and linkage chemistries to fine-tune material properties and functionality, most of which have reported relatively unsatisfying performance (e.g., poor mechanical strength and strain tolerance). This study describes the synthesis and characterization of COF nanocomposite aerogels, whose material properties and functionality are effectively engineered through the incorporation of reinforcing fillers/binders or functional additives. Boron nitride (BN) fillers, cross-linked poly(acrylic acid) (XPAA) binders, and gold nanoparticles (AuNps) are incorporated into 1,3,5-tris(aminophenyl)benzene-terephthaldehyde (TAPB-PDA) COF aerogel matrices to form homogeneous nanocomposite aerogels with enhanced mechanical properties and unique photothermal conversion capabilities. Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy results confirm the successful filler/additive inclusion into the final COF nanocomposite aerogels. Specifically, BN filler loading at ∼17 wt % relative to final COF mass doubles COF aerogel’s Young’s modulus from 11 to 22 kPa according to mechanical compression tests, with only ∼10% reduction in COF’s accessible mesopores’ surface area according to nitrogen porosimeter analyses. Meanwhile, incorporating ∼7 wt % XPAA relative to final COF mass improves the Young’s modulus to 21 kPa, while increasing the aerogel’s yield strain from 10 to 65% strain, although this leads to a ∼35% reduction in COF’s accessible mesopores’ surface area. Furthermore, photothermal AuNps are incorporated to form functional COF nanocomposite aerogels, whose overall temperature increases by 5.5 °C after 1 sun (AM1.5G, 1000 W m^–2) irradiation. Overall, this study demonstrates potential routes to fabricate hierarchically porous COF nanocomposite aerogels with high specific surface area, robust mechanical stability, and unique photothermal functionality, which hold promises for applications in adsorption separation, gas storage, and photocatalysis.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5815–5828 5815–5828"},"PeriodicalIF":5.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Z-Scheme Heterojunction CdIn2S4/BiVO4 with a Spherical Structure for Photocatalytic CO2 Reduction","authors":"Peiran Wu,&nbsp;Yi Wu,&nbsp;Zhou Shi,&nbsp;Bin Chen,&nbsp;Jili Wen,&nbsp;Shinuo Na,&nbsp;Wentian Xia,&nbsp;Sorachon Yoriya,&nbsp;Ping He*,&nbsp;Kai Huang,&nbsp;Qizhen Liu* and Jiang Wu*,&nbsp;","doi":"10.1021/acsanm.5c0007610.1021/acsanm.5c00076","DOIUrl":"https://doi.org/10.1021/acsanm.5c00076https://doi.org/10.1021/acsanm.5c00076","url":null,"abstract":"<p >Z-scheme heterojunction photocatalysts are at the forefront of carbon dioxide reduction research. However, BiVO₄ faces challenges due to its inappropriate conduction band position and rapid charge carrier recombination. In this article, spherical CdIn₂S₄/BiVO₄ Z-scheme heterojunction composites attached to coiled nanosheets were synthesized via a hydrothermal method, which improved the CO₂ reduction efficiency and addressed these limitations. The morphology, crystal structure, band structure, and photoelectrochemical properties of the sample were further studied. The CdIn₂S₄/BiVO₄ composites exhibit superior photocatalytic activity compared to pure CdIn₂S₄ and BiVO₄, with the CdIn₂S₄/BiVO₄ composite containing 25% BiVO₄ yielding the highest CO and CH₄ production rates of 4.51 μmol g^–1 h^–1 and 1.01 μmol g^–1 h^–1, respectively, after 6 h and achieving an 81.7% CO selectivity. The Z-scheme design effectively mitigates charge recombination, boosts electron transfer, and enhances the photocatalytic CO₂ activity. The mechanism of photogenerated carrier transfer in catalysts was elucidated through density functional theory. This work offers insights and theories into the design and preparation of BiVO₄-based heterojunction photocatalysts.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 12","pages":"5979–5991 5979–5991"},"PeriodicalIF":5.3,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical Study of Low Lattice Thermal Conductivity Induced by Antibonding and Acoustic–Optical Coupling in Nanolayered NdAgTeO Thermoelectric Material with High ZT","authors":"Shuwei Tang*,&nbsp;Zhiwei Zhang,&nbsp;Shulin Bai*,&nbsp;Da Wan,&nbsp;Peng Ai,&nbsp;Xiaodong Li,&nbsp;Pengfei Zhang,&nbsp;Yujie Bao and Yunzhuo Zhang,&nbsp;","doi":"10.1021/acsanm.4c0730210.1021/acsanm.4c07302","DOIUrl":"https://doi.org/10.1021/acsanm.4c07302https://doi.org/10.1021/acsanm.4c07302","url":null,"abstract":"<p >The crystal structure, electronic properties, phonon transport, and thermoelectric (TE) properties of nanolayered NdAgTeO compound are assessed by utilizing the first-principles calculations and Boltzmann transport theory in the current work. Nanolayered NdAgTeO compound is a direct-bandgap semiconductor (1.30 eV) using the Perdew–Burke–Ernzerhof (PBE) functional in connection with the spin–orbit coupling (SOC) effect. The elastic modulus, <i>ab initio</i> molecular dynamics (AIMD) simulations, and phonon dispersion analysis confirm the high mechanical, thermal, and dynamic stabilities of the NdAgTeO compound. Due to the unique nanolayered structure, a significant anisotropy is discovered for the electronic and thermal transport properties of the NdAgTeO compound, and the multivalley properties in the conduction bands facilitate the decoupling between Seebeck coefficient and electrical conductivity. The antibonding state around the Fermi level and the strong acoustic–optical coupling within the low-frequency region favor the pronounced anharmonicity in the NdAgTeO compound, leading to the anisotropic lattice thermal conductivities of 2.76 and 0.76 W/mK in the directions of <i>a</i>- and <i>c</i>-axis, respectively, at 300 K. The electron–phonon decoupling contributes to the excellent TE properties of <i>n</i>-type NdAgTeO compound, which demonstrates large Seebeck coefficient and electrical conductivity, and ultimately culminating high power factor. Consequently, the optimal <i>ZT</i>s for <i>n</i>- and <i>p</i>-type NdAgTeO compounds reach 2.08 and 1.16 at 700 K, respectively, while in the directions of the <i>a</i>- and <i>c</i>-axis, the <i>ZT</i>s achieve 1.38 and 4.68 at equivalent temperature. The study not only offers profound discernment into the thermal and electronic transport characteristics of the NdAgTeO compound but also emphasizes the promising potential of nanolayered oxychalcogenide materials for TE applications.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5543–5555 5543–5555"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct Growth of Monolayer Graphene Wafers on Industrializable Cu (111) Substrate","authors":"Jiangli Xue,&nbsp;Yadong Ru,&nbsp;Tingting Zuo,&nbsp;Yuefan Xu,&nbsp;Zhaoshun Gao*,&nbsp;Chuangang Hu,&nbsp;Li Han and Liye Xiao,&nbsp;","doi":"10.1021/acsanm.4c0726410.1021/acsanm.4c07264","DOIUrl":"https://doi.org/10.1021/acsanm.4c07264https://doi.org/10.1021/acsanm.4c07264","url":null,"abstract":"<p >High-quality graphene has attracted great attention because of its unique properties and potential applications in electronics, photonics, and mechanics. Chemical vapor deposition has emerged as a highly promising technique for the production of state-of-the-art graphene on Cu substrates. Single-crystal Cu (111) is considered as an optimal substrate for graphene growth, as it exhibits hexagonal symmetry and minimum lattice mismatch with graphene. In this study, we fabricate an industrializable single-crystal Cu (111) wafer using a modified directional solidification method combined with electric discharge wire cutting technology and electrochemical polishing technology. This approach is distinct from the current mainstream methods for preparing Cu (111) foil. Notably, the resulting Cu (111) wafer can be directly used as a substrate for the growth of monolayer graphene. In all probability, this work presents a strategy for the industrial-scale production of Cu (111) wafers and the synthesis of monolayer graphene, thereby offering potential advancement in the scalable manufacturing of high-quality graphene materials.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5535–5542 5535–5542"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polyvinylpyrrolidone-Free Silver Nanowires for Alternating Current Electroluminescence Electrode Devices","authors":"Suteeporn Kidtang,&nbsp;Samuk Pimanpang,&nbsp;Ekaphan Swatsitang and Wirat Jarernboon*,&nbsp;","doi":"10.1021/acsanm.5c0082910.1021/acsanm.5c00829","DOIUrl":"https://doi.org/10.1021/acsanm.5c00829https://doi.org/10.1021/acsanm.5c00829","url":null,"abstract":"<p >Silver nanowires (AgNWs) were prepared by the polyol method. The synthesis temperature was varied from 110 to 170 °C, with increments of 10 °C. At a low temperature of 110 °C, only a small amount of nanowires was formed. Many uniform and long nanowires were formed in a temperature range of 120–150 °C, but at high temperatures at 160 and 170 °C, the nanowires of larger diameter and shorter length were formed with some silver nanoparticles (AgNPs) on their surfaces. AgNWs under a reaction temperature of 140 °C (AgNWs-140 °C) exhibited the longest average length (88 ± 37 μ m) and the highest aspect ratio (1134 ± 485), with an average diameter of 77.2 ± 19.1 nm. These results indicate that 140 °C provides optimal growth conditions, achieving a balance between the nucleation and elongation processes. AgNWs-140 °C-based transparent conductive films (TCF) exhibited a low sheet resistance of 46 Ω/sq with the highest transmittance of 68% at a 550 nm wavelength. The assembled alternating current electroluminescence devices (AC-EL), having the device structure as a AgNWs-TCF/ZnS:Cu phosphor layer/BaTiO₃ dielectric layer/Ag-paste back-electrode, showed the luminance intensity depended on the sheet resistance and transmittance of the TCF film. The AgNWs-140 °C AC-EL device delivered the highest luminance of 531.1 ± 69.8 cd/m², which was about 95.4% of that of the standard conductive ITO/PEN TCF commercial electrode (557.6 ± 29.7 cd/m²).</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5829–5840 5829–5840"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsanm.5c00829","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Confinement of Gold Nanoparticles in a Supramolecular Cross-Linked Polymer Network as a Robust Nanofilm for Efficient SERS Detection of Antibiotics","authors":"Xingzi Han,&nbsp;Rongxin Zhao,&nbsp;Yitao Zhu,&nbsp;Jingxuan Lu,&nbsp;Lin Geng,&nbsp;Wenzhong Yang and Hui Xu*,&nbsp;","doi":"10.1021/acsanm.5c0117010.1021/acsanm.5c01170","DOIUrl":"https://doi.org/10.1021/acsanm.5c01170https://doi.org/10.1021/acsanm.5c01170","url":null,"abstract":"<p >The self-organization of gold nanoparticles (AuNPs) into a closely packed film is of great interest for both basic research and practical applications in surface-enhanced Raman spectroscopy (SERS). Here, we report an approach to facilitate the self-assembly of AuNPs at the oil–water interface, driven by cross-linking of two block copolymers. The diblock copolymer poly(ethylene glycol)-<i>block</i>-poly(acrylic acid) (PEG-<i>b</i>-PAA) in the aqueous phase and the diblock copolymer poly(ethylene glycol)-<i>block</i>-poly(4-vinylpyridine) (PEG-<i>b</i>-P4VP) in the oil phase form a cross-linked polymer network (CPN) at the water–oil interface. Meanwhile, due to the electrostatic adsorption of P4VP chains on the citrate-capped AuNPs, the AuNPs in the water are also drawn to the water–oil interface and confined within the physically cross-linked network formed by PEG-<i>b</i>-PAA and PEG-<i>b</i>-P4VP. This technique efficiently produces a two-dimensional (2D) AuNP-polymer composite film suitable for SERS sensing applications. The physically cross-linked network acts as a robust framework that significantly enhances the flexibility of the film through hydrogen-bonding interactions between PEG-<i>b</i>-PAA and PEG-<i>b</i>-P4VP. In addition, compared to AuNP films prepared by traditional methods, this 2D cross-linked polymer network film imbued with closely packed AuNPs (i.e., AuNPs@CPN) exhibits significantly improved mechanical strength, making it less prone to fracture. Thus, it can exist as a free-standing film and be transferable to various solid substrates, which is very convenient for practical use.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5873–5884 5873–5884"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integration of Leu-Asp-Val Cell Attachment Motif into Self-Assembling Peptide Sequences for Nanofibrillar Hydrogel Formation in Wound Healing","authors":"Burcu Sırma Tarım,&nbsp;Sedef Tamburacı,&nbsp;Berk Uysal and Ayben Top*,&nbsp;","doi":"10.1021/acsanm.4c0640810.1021/acsanm.4c06408","DOIUrl":"https://doi.org/10.1021/acsanm.4c06408https://doi.org/10.1021/acsanm.4c06408","url":null,"abstract":"<p >Functionalizing peptide sequences with cell adhesion motifs enhances their cellular bioactivity. Numerous studies have focused on incorporating the Arg-Gly-Asp (RGD) motif into peptide hydrogels; however, the integration of other bioactive domains has yet to be comprehensively investigated. In this study, one of the essential fibronectin-derived cell-binding domains, Leu-Asp-Val (LDV), was integrated into the self-assembling peptide to obtain extracellular matrix (ECM)-mimetic nanofibrillar hydrogelators. IBP1A (NH₂-KLDVKLDVKLKV-CONH₂) and IBP1B (NH₂-KLDVKLDVKLDV-CONH₂) peptides were designed accordingly. These peptides self-assemble into hydrogels in phosphate-buffered saline (PBS) at pH 7.4 and deionized water at neutral pH with storage modulus values between ∼200 and ∼2000 Pa. Flow curves and the cyclic strain sweep data confirmed that the hydrogels have shear thinning, injectability, and self-healing properties. Flexible nanofibrillar morphology was observed in the TEM images. Nanofibril widths of IBP1A and IBP1B networks were measured as 8.2 ± 1.1 and 4.5 ± 0.8 nm, respectively. In vitro tests were also conducted to evaluate these peptides in wound healing applications. The IBP1A peptide with a +3 charge at neutral pH exhibited modest antibacterial activity against Gram (+) and Gram (−) bacteria. In vitro cell culture experiments show that the IBP1A and IBP1B hydrogels promoted the growth of fibroblast cells and glycosaminoglycan secretion compared with the KLDL12 control peptide, which does not contain the LDV motif. The designed hydrogels induced cell attachment within 72 h by altering the cell morphology similar to their natural 3D microenvironment, whereas cells exhibited spindle-like morphology on the KLDL12 hydrogel and tissue culture polystyrene (TCP). Moreover, IBP1B accelerated in vitro wound healing by facilitating fibroblast migration. These results suggest that these bioactive injectable peptide hydrogels have potential in wound healing and skin tissue regeneration.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5302–5314 5302–5314"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsanm.4c06408","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pt-Based Ternary Alloy on Nanohoneycomb Nitrogen-Doped Carbon Support for Highly Active and Stable Oxygen Reduction Reaction","authors":"Xiaoxiong Feng,&nbsp;Zilong Zhou,&nbsp;Hui-Juan Zhang*,&nbsp;Zhong Ma and Yuhua Xue,&nbsp;","doi":"10.1021/acsanm.5c0037110.1021/acsanm.5c00371","DOIUrl":"https://doi.org/10.1021/acsanm.5c00371https://doi.org/10.1021/acsanm.5c00371","url":null,"abstract":"<p >The development of efficient and stable cathodic oxygen reduction reaction (ORR) catalysts is key to promoting the commercialization of proton-exchange membrane fuel cells (PEMFCs). In this paper, a series of ultralow-Pt ternary alloy catalysts supported on honeycomb nitrogen-doped carbon (PtM₁M₂/HNC, M₁, M₂= Fe, Co, Ni, and Cu) with a 2 wt % Pt loading were designed. Among them, PtFeCu/HNC exhibited the best ORR activity, 4e selectivity, stability, and methanol resistance under alkaline conditions, which is attributed to the abundant defects and high N content in the HNC support, Pt-based ternary alloy sites, and the optimal Pt alloy strain effect generated by Fe and Cu, which effectively regulate the oxygen binding energy strength. Moreover, compared to PtFeCu/NC, results showed that the excellent ORR catalytic activity of PtFeCu/HNC is also due to its well-structured HNC support with an abundant mesoporous structure. In 0.1 M KOH, PtFeCu/HNC exhibited an ORR peak potential of 0.946 and a half-wave potential of 0.918 V (vs. RHE), respectively, with an electron transfer number (<i>n</i>) ranging between 3.9 and 4.0. After stability and antimethanol tests, PtFeCu/HNC showed almost negligible activity loss. This work provides a strategy for constructing efficient and stable ultralow-Pt catalysts.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5775–5783 5775–5783"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bismuth Nanoparticles Encapsulated in Mesoporous Carbon as Anodes for Sodium- and Potassium-Ion Batteries","authors":"Dan Zhao*,&nbsp;Mengyu Dang,&nbsp;Jian Yu,&nbsp;Yi Liu and Shouwu Guo,&nbsp;","doi":"10.1021/acsanm.4c0632810.1021/acsanm.4c06328","DOIUrl":"https://doi.org/10.1021/acsanm.4c06328https://doi.org/10.1021/acsanm.4c06328","url":null,"abstract":"<p >With abundant resources, high electrochemical reversibility, and high volumetric specific capacity, bismuth (Bi) has been identified as a promising anode candidate for both potassium-ion batteries (PIBs) and sodium-ion batteries (SIBs). However, its relatively large volumetric change during the charging/discharging processes has hindered the practical application of Bi. To alleviate these problems, a single-step vapor-phase nanocrystallization method has been utilized to distribute Bi nanoparticles to ordered mesoporous carbon CMK-3, forming the Bi/CMK-3 composite. The large volumetric change will be largely eased thanks to the nanosize effect of Bi particles. As a result, the Bi/CMK-3 anode has delivered a reversible capability of 249 mAh g^–1 at 20 A g^–1 for SIBs and a reversible capability of 231 mAh g^–1 at 20 A g^–1 for PIBs, respectively, indicating its quick-charging potential. A capacity of 210 mAh g^–1 at 10 A g^–1 and a capacity of 203 mAh g^–1 at 1 A g^–1 have been maintained after cycling over 2500 and 500 cycles for SIBs and PIBs, respectively, showing the stable cycling performance of the Bi/CMK-3 anode.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5283–5293 5283–5293"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N, F Co-Doped Carbon Encapsulated Hollow LiFePO4 Nanoshuttles for Lithium-Ion Batteries","authors":"Haodong Zhang,&nbsp;Xin Ye,&nbsp;Shaoyang Wu,&nbsp;Fan Wu,&nbsp;Yiming Zhang,&nbsp;Zhengping Ding,&nbsp;Yurong Ren* and Peng Wei*,&nbsp;","doi":"10.1021/acsanm.4c0736110.1021/acsanm.4c07361","DOIUrl":"https://doi.org/10.1021/acsanm.4c07361https://doi.org/10.1021/acsanm.4c07361","url":null,"abstract":"<p >As a mainstream commercial cathode material for lithium-ion batteries (LIBs), LiFePO₄ (LFP) is still limited by its inherently low electronic conductivity and slow diffusion kinetics. Therefore, a unique and innovative synthesis strategy must be devised to overcome these deficiencies. Hereby, we successfully synthesized N,F co-doped carbon encapsulated hollow LFP nanoshuttles (LFP-NFC) using an iron-based metal–organic framework (Fe-MOF) as the precursor. Benefitting from the hollow and porous structure derived from Fe-MOF, as-synthesized LFP-NFC effectively shortens the lithium-ion diffusion path and accelerates the ion diffusion speed. Moreover, the carbon layer doped with N and F heteroatoms induces more active sites for lithium storage and improves the electronic conductivity. The optimized LFP-NFC exhibits excellent electrochemical performance with a specific discharge capacity of 162.74 mAh g^–1 at 0.1 C and a superior rate capability (102 mAh g^–1 even at 10 C).</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 11","pages":"5579–5588 5579–5588"},"PeriodicalIF":5.3,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}