ACS Applied Nano Materials最新文献_第6页

Strain Amplification Strategy for the Regulation of 2D and 3D Optical Micro/Nanostructures 调节二维和三维光学微/纳米结构的应变放大策略

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0474810.1021/acsanm.4c04748

Qiushun Zou*, Bo Li, Ruansheng Guo, Yimin Chen, Chenjie Gu, Peiqing Zhang and Xiang Shen*,

{"title":"Strain Amplification Strategy for the Regulation of 2D and 3D Optical Micro/Nanostructures","authors":"Qiushun Zou*, Bo Li, Ruansheng Guo, Yimin Chen, Chenjie Gu, Peiqing Zhang and Xiang Shen*, ","doi":"10.1021/acsanm.4c0474810.1021/acsanm.4c04748","DOIUrl":"https://doi.org/10.1021/acsanm.4c04748https://doi.org/10.1021/acsanm.4c04748","url":null,"abstract":"Three-dimensional (3D) nanostructures have attracted significant attention due to their excellent properties in electromagnetic field localization and regulation, which are hardly obtained from the planar nanostructure. Recently, a promising approach, internal or external triggers induced by 2D precursor to 3D nanostructure transformation, has emerged to provide a solid basis for studying and applying 3D micro/nanostructures. However, the function and research of the constraint blocks in 2D precursors are still superficial, which restricts its development. Here, we have theoretically proposed and experimentally demonstrated a strain amplification strategy for dynamically regulating 2D and 3D optical micro/nanostructures. Arising from the restriction of the paired constraint blocks, the strain between the blocks is significantly increased to obtain a strain amplification effect, which can be simulated by a finite element method (FEM), and verified experimentally from the gap change between the 2D gratings. Meanwhile, such a strategy can regulate the 3D optical micro/nanostructures, such as the nanopyramids studied here. The results indicate that the strain increment depends on the design of the paired blocks, especially their length. Moreover, the reflection properties of a nanorod dimer array were dynamically regulated by a combination of prestretching. The proposed strain amplification strategy provides opportunities to regulate the 2D and 3D nanostructures for active optical components, flexible electronics, and integrated circuits.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608885","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}

引用次数: 0

Optical Fiber Biosensors with ZnO Nanowires and Nanoparticles of Fe3O4 and Au for Rapid Detection of Enrofloxacin Residues in Food 用于快速检测食品中恩诺沙星残留的氧化锌纳米线及 Fe3O4 和金纳米颗粒光纤生物传感器

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0404510.1021/acsanm.4c04045

Fei Liu, Ragini Singh*, Carlos Marques, Bingyuan Zhang* and Santosh Kumar*,

{"title":"Optical Fiber Biosensors with ZnO Nanowires and Nanoparticles of Fe3O4 and Au for Rapid Detection of Enrofloxacin Residues in Food","authors":"Fei Liu, Ragini Singh*, Carlos Marques, Bingyuan Zhang* and Santosh Kumar*, ","doi":"10.1021/acsanm.4c0404510.1021/acsanm.4c04045","DOIUrl":"https://doi.org/10.1021/acsanm.4c04045https://doi.org/10.1021/acsanm.4c04045","url":null,"abstract":"In this paper, an enhanced optical fiber biosensor based on nanomaterials is proposed for the detection of enrofloxacin residues in food. Single mode fiber (SMF), multimode fiber (MMF), and four-core fiber (FCF) were fused to fabricate an SMF-MMF-FCF-MMF-SMF fiber structure. Then, a three times tapered (T3) optical fiber structure was fabricated on FCF. The WaveFlex fiber structure T3-SMF-MMF-FCF-MMF-SMF was fabricated. The optical fiber surface was modified with gold nanoparticles, zinc oxide nanowires (ZnO-NWs), and Fe3O4 and Au nanocomposites to stimulate and enhance the localized surface plasmon resonance (LSPR) effect. The enrofloxacin monoclonal antibody was fixed on the surface of the probe in order to achieve specific differentiation detection. The performance of the sensor was verified by testing 0–1000 μg/mL enrofloxacin solutions. The sensitivity of the proposed sensor is 1.89 nm/ln (μg/mL), with a detection limit (LoD) of 0.16 μg/mL. In addition, the method has good reproducibility, reusability, repeatability, stability, and selectivity. It has also obtained promising results in real environment (milk, juice, pork, and chicken) tests and can be used for the detection of enrofloxacin in food.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608899","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}

引用次数: 0

Tuning of the Bimetallic CoNi Electronic Structure for Inducing Catalytic Activity and Selectivity for Styrene Hydrogenation 调谐双金属 CoNi 电子结构以提高苯乙烯加氢反应的催化活性和选择性

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0422710.1021/acsanm.4c04227

Xiong Fang, Zhengsuo Zhang, Linlin Li, Yueying Wang and Shunxin Fei*,

{"title":"Tuning of the Bimetallic CoNi Electronic Structure for Inducing Catalytic Activity and Selectivity for Styrene Hydrogenation","authors":"Xiong Fang, Zhengsuo Zhang, Linlin Li, Yueying Wang and Shunxin Fei*, ","doi":"10.1021/acsanm.4c0422710.1021/acsanm.4c04227","DOIUrl":"https://doi.org/10.1021/acsanm.4c04227https://doi.org/10.1021/acsanm.4c04227","url":null,"abstract":"Tuning the selectivity of catalytic hydrogenation is of vital importance and is challenging in the chemical industry. The present study demonstrates that the highly selective hydrogenation of styrene can be precisely controlled by simply tuning the reaction temperature over CoxNiy (x + y = 1) bimetallic nanocatalysts supported on SiO2. The Co0.5Ni0.5 catalyst exhibits markedly enhanced catalytic activity, with a styrene conversion that is over 4 times higher than that of the pure Ni catalyst and 18 times higher than that of the pure Co catalyst during the initial 1 h. This outstanding catalytic performance is comparable to that of Ru and Pd catalysts, and its selectivity is even more advanced than those of some state-of-the-art noble metals. DFT calculations show that the catalytic performance of the bimetallic CoNi catalyst is improved due to the optimized electronic structure of the CoNi alloy. These results suggest that nanosized bimetallic CoNi could be a promising catalyst for the highly selective hydrogenation of C═C double bonds in unsaturated organic compounds at different positions. Our findings offer useful insights for the design of noble metal-free bimetallic nanocatalysts for highly tunable selective hydrogenation reactions.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608728","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}

引用次数: 0

RuCo Nanoparticles Immobilized on Carbon Nanocuboids as Catalysts for H2 Evolution 固定在碳纳米立方体上的 RuCo 纳米颗粒作为 H2 蒸发催化剂

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0507510.1021/acsanm.4c05075

Zhixin He, Xiaohong Liu, Qing Zhang, Ziheng Chen, Guanyu Yan, Yan Wu, Yanglu Li, Yanlan Wang*, Fangyu Fu* and Xiang Liu*,

{"title":"RuCo Nanoparticles Immobilized on Carbon Nanocuboids as Catalysts for H2 Evolution","authors":"Zhixin He, Xiaohong Liu, Qing Zhang, Ziheng Chen, Guanyu Yan, Yan Wu, Yanglu Li, Yanlan Wang*, Fangyu Fu* and Xiang Liu*, ","doi":"10.1021/acsanm.4c0507510.1021/acsanm.4c05075","DOIUrl":"https://doi.org/10.1021/acsanm.4c05075https://doi.org/10.1021/acsanm.4c05075","url":null,"abstract":"It is a matter of high significance to develop on-demand H2 evolution from chemical hydrogen storage materials for efficiently avoiding the safety risks and high costs in the process of H2 storage and transport, which has important scientific significance and application value for the safe and effective use of H2. In this study, we have designed and synthesized an RuCo nanocatalyst immobilized onto hollow carbon nanocuboids (RuCo-CNCs) for on-demand H2 evolution from chemical hydrogen storage materials (including Me2NHBH3, NH3BH3, and NaBH4). Full physical characterization confirmed that RuCo-CNC-800 exhibited a nanocuboid-shaped structure, and RuCo bimetallic nanoparticles were successfully immobilized onto nanocuboids. This is advantageous to prevent the aggregation of the RuCo nanocatalyst and mass transfer, hence boosting its stability and catalytic performance in H2 evolution. More importantly, the in situ H2 from chemical hydrogen storage materials was successfully applied for the hydrogenation reaction, thus eliminating the need for dangerous hydrogen cylinders. In addition, the “on–off” switch for H2 evolution from Me2NHBH3 hydrolysis over the RuCo-CNC-800 nanocatalyst was successfully achieved using the system of Zn2+/ethylenediaminetetraacetic acid disodium salt (EDTA-2Na). This work not only provides an efficient RuCo nanocatalyst for H2 evolution but also suggests a feasible method for the safe and effective use of H2.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608933","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}

引用次数: 0

Superhydrophobic/-philic SERS Platform Based on Femtosecond Laser-Induced Periodic Surface Structures and Ag Nanoparticles 基于飞秒激光诱导周期性表面结构和银纳米颗粒的超疏水/亲水 SERS 平台

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0490510.1021/acsanm.4c04905

Taohua Zhou, Kun Chen, Kai Cao, Xuran Zhou, Zichen Yang, Jianjun Cao*, Chaoqun Ma* and Lian Hu*,

{"title":"Superhydrophobic/-philic SERS Platform Based on Femtosecond Laser-Induced Periodic Surface Structures and Ag Nanoparticles","authors":"Taohua Zhou, Kun Chen, Kai Cao, Xuran Zhou, Zichen Yang, Jianjun Cao*, Chaoqun Ma* and Lian Hu*, ","doi":"10.1021/acsanm.4c0490510.1021/acsanm.4c04905","DOIUrl":"https://doi.org/10.1021/acsanm.4c04905https://doi.org/10.1021/acsanm.4c04905","url":null,"abstract":"The trace detection of molecules from highly diluted solutions is critical for biomedical diagnostics, environmental monitoring, food safety, and pharmaceutical quality control. We introduce a highly sensitive superhydrophobic/-philic surface-enhanced Raman scattering (SERS) platform with specific patterns for trace detection. A superhydrophobic structure was fabricated on stainless steel using femtosecond laser-induced periodic surface structures with chemical modification and annealing. The periodic wavy strips, measuring 654 nm in width, are uniformly distributed across a large area. Superhydrophilic patterns of various sizes and shapes were then created on the superhydrophobic surface through nanosecond laser processing. Studying the droplet evaporation process and deposition characteristics shows that target molecules concentrate at the vertex positions of the superhydrophilic pattern, significantly enhancing SERS performance. The triangular pattern with an 800 μm circumcircle diameter exhibited the highest enhancement among the patterns. We demonstrated trace detection of crystal violet mixed with Ag nanoparticles averaging 54 nm in diameter, achieving a Limit of Detection (LOD) of 1.22 × 10–15 M and an enhancement factor of 3.69 × 1010. Furthermore, we integrated our platform with COF@Ag. The COFs display a nearly spherical morphology with an average diameter of 925 nm, and their surfaces are densely and uniformly covered with Ag nanoparticles. This significantly enhances the platform’s efficiency in trace detection, enabling the successful detection of the antibiotic amoxicillin with an LOD of 1.01 × 10–11 M. This demonstrates the practical application of the superhydrophobic/-philic SERS platform in biosensing and quantitative analysis, positioning it as a powerful tool for trace detection across various fields.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608932","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}

引用次数: 0

Green Synthetic NiCoP Nanoparticles Encapsulated in N-Doped Carbon for Water Splitting 封装在掺杂 N 的碳中用于水分离的绿色合成镍钴磷纳米粒子

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0479810.1021/acsanm.4c04798

Xin Ye, Haodong Zhang, Fan Wu, He Ma, Shaoyang Wu, Xiangqun Zhuge, Yurong Ren* and Peng Wei*,

{"title":"Green Synthetic NiCoP Nanoparticles Encapsulated in N-Doped Carbon for Water Splitting","authors":"Xin Ye, Haodong Zhang, Fan Wu, He Ma, Shaoyang Wu, Xiangqun Zhuge, Yurong Ren* and Peng Wei*, ","doi":"10.1021/acsanm.4c0479810.1021/acsanm.4c04798","DOIUrl":"https://doi.org/10.1021/acsanm.4c04798https://doi.org/10.1021/acsanm.4c04798","url":null,"abstract":"Transition metal phosphides (TMPs) have drawn widespread attention as promising electrocatalysts due to their special electronic structure, good electrochemical activity, low cost, and high abundance. Although a great deal of effort has been expended in the pursuit of TMPs, the majority of synthesis processes are complex and hazardous due to the use of flammable and toxic phosphorus sources. Herein, we propose a nontoxic and scalable synthetic strategy for the synthesis of NiCoP@NC by using green and cheap diethylenetriaminepentakis (methylphosphonic acid) (DTPMP) as the phosphorus source. DTPMP can also act as a chelating agent and displays strong coordination ability with metal ions, thereby reducing particle size and forming nanoparticles. The NiCoP@NC exhibits outstanding stability and electrocatalytic activity in both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Furthermore, water electrolysis performance also is measured using NiCoP@NC as both anode and cathode, which delivers a cell voltage of 1.73 V at 10 mA·cm–2 and can operate stably for 24 h. This work not only constructs efficient bifunctional catalysts, but also broadens the green synthesis method of nanosized TMPs, paving the way for further large-scale practical applications.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608973","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}

引用次数: 0

Correction to “Reduced Graphene Oxide/MXene/FeCoC Nanocomposite Aerogels Derived from Metal–Organic Frameworks toward Efficient Microwave Absorption” 对 "由金属有机框架衍生的还原氧化石墨烯/MXene/FeCoC 纳米复合气凝胶实现高效微波吸收 "的更正

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0558710.1021/acsanm.4c05587

Dongyi Lei, Chengkan Liu, Chunlei Dong, Sijia Wang, Peng Zhang*, Ying Li*, Jiaxin Liu, Yuling Dong and Chunxiang Zhou,

引用次数: 0

Cellulose Nanofiber/Mxene Nanosheet/Nickel Chain Composite Carbon Foams for Electromagnetic Wave Absorption 用于吸收电磁波的纤维素纳米纤维/茂金属纳米片/镍链复合碳泡沫

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0462410.1021/acsanm.4c04624

Anyun Li, Peiying Xie, Ying Yuan, Xiaolan Liang, Jiaming Chen, Yunhua Chen*, Chaoyang Wang, Tao Wang, Li Zhou and Hongxia Liu*,

{"title":"Cellulose Nanofiber/Mxene Nanosheet/Nickel Chain Composite Carbon Foams for Electromagnetic Wave Absorption","authors":"Anyun Li, Peiying Xie, Ying Yuan, Xiaolan Liang, Jiaming Chen, Yunhua Chen*, Chaoyang Wang, Tao Wang, Li Zhou and Hongxia Liu*, ","doi":"10.1021/acsanm.4c0462410.1021/acsanm.4c04624","DOIUrl":"https://doi.org/10.1021/acsanm.4c04624https://doi.org/10.1021/acsanm.4c04624","url":null,"abstract":"Developing composite carbon foams with multiple loss mechanisms and achieving stable and efficient electromagnetic wave absorption performance in harsh environments remain challenges. In this study, aqueous dispersions containing Ni2+ cellulose nanofiber (CNF) and Ti3C2Tx MXene were used to stabilize a styrene–butadiene–styrene (SBS) cyclohexane solution in the oil phase to form a Pickering emulsion gel. This gel was combined with freeze-drying and thermal annealing processes to synthesize nickel nanowires (Ni NWs) in situ within a three-dimensional pore structure at elevated temperatures, resulting in the production of C–CNF/MXene/Ni NW composite carbon foams. In this process, carbonized CNF and SBS function as three-dimensional scaffolds, while two-dimensional MXene sheets and in situ synthesized Ni NWs are uniformly integrated to establish a conductive network with heterogeneous interfaces. The resultant composite carbon foam demonstrates stable microwave absorption properties, with the C-C1M1N3 carbon foam achieving a minimum reflection loss (RLmin) of −45.2 dB at 13.6 GHz when the thickness is only 3.0 mm and a wide effective absorption bandwidth (EAB) of 7.6 GHz at the same thickness. Additionally, the carbon foam exhibited excellent hydrophobicity and lipophilicity, indicating potential for oil–water separation applications.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142609153","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}

引用次数: 0

Polymerized Phthalocyanine Manganese/Graphene Composites for Single-Atom Oxygen Reduction Catalysts 用于单原子氧还原催化剂的聚合酞菁锰/石墨烯复合材料

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0477610.1021/acsanm.4c04776

Wenjie Duan, Yinggang Sun, Zhongfang Li*, Peng Sun, Yanqiong Zhuang and Xulei Zhi,

{"title":"Polymerized Phthalocyanine Manganese/Graphene Composites for Single-Atom Oxygen Reduction Catalysts","authors":"Wenjie Duan, Yinggang Sun, Zhongfang Li*, Peng Sun, Yanqiong Zhuang and Xulei Zhi, ","doi":"10.1021/acsanm.4c0477610.1021/acsanm.4c04776","DOIUrl":"https://doi.org/10.1021/acsanm.4c04776https://doi.org/10.1021/acsanm.4c04776","url":null,"abstract":"Oxygen reduction reaction (ORR) catalysts are a key research area of fuel cells and zinc-air batteries (ZABs). The planar fully conjugate poly(manganese phthalocyanine) (PPcMn) is synthesized. Thermogravimetry (TG) shows that PPcMn is not decomposed at 400 °C. The catalyst PPcMn/3D-G (three-dimensional graphene) is prepared. The solid-state ultraviolet spectroscopy and Raman spectra indicate strong π–π interactions between PPcMn and 3D-G. X-ray photoelectron spectroscopy (XPS) demonstrates that PPcMn on the surface of 3D-G does not decompose during heat treatment (HT). The combination of TG and XPS proves that the active center of the catalyst is a single-atom Mn–N4 structure. In 0.1 M KOH, the half-wave potential (E1/2) of PPcMn/3D-G is 0.863 V vs RHE. The potential gap (ΔE = Ej = 10 – E1/2) of PPcMn/3D-G is 0.77 V. Density functional theory (DFT) calculations demonstrate that PPcMn has a low effect on the energy barriers for intermediates in the catalytic ORR process. PPcMn has a higher electron cloud density of the Mn–N4 center, and the catalytic ORR performance is enhanced. Zinc-air batteries (ZABs) using PPcMn/3D-G as a catalyst exhibit excellent performance. In the antioxidant test, PPcMn/3D-G does not produce hydroxyl radicals during the catalytic H2O2 oxidation of poly[2,2-(m-phenylene)-5,5-bibenzimidazole] (mPBI) membranes. Therefore, PPcMn/3D-G is an excellent ORR single-atom electrocatalyst for fuel cells.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608979","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}

引用次数: 0

Interfacial Oxidation of Metals on Graphene 石墨烯上的金属界面氧化作用

IF 5.3 2区材料科学

ACS Applied Nano Materials Pub Date : 2024-10-23 DOI: 10.1021/acsanm.4c0428310.1021/acsanm.4c04283

Zhien Wang, Haozhe Wang, Roman Caudillo, Jiangtao Wang, Zhenjing Liu, Alexandre Foucher, Ji-Hoon Park, Meng-Chi Chen, Ang-yu Lu, Peng Wu, Jiadi Zhu, Xudong Zheng, Tymofii S. Pieshkov, Steven A. Vitale, Yimo Han, Frances M. Ross, Iwnetim I. Abate and Jing Kong*,

{"title":"Interfacial Oxidation of Metals on Graphene","authors":"Zhien Wang, Haozhe Wang, Roman Caudillo, Jiangtao Wang, Zhenjing Liu, Alexandre Foucher, Ji-Hoon Park, Meng-Chi Chen, Ang-yu Lu, Peng Wu, Jiadi Zhu, Xudong Zheng, Tymofii S. Pieshkov, Steven A. Vitale, Yimo Han, Frances M. Ross, Iwnetim I. Abate and Jing Kong*, ","doi":"10.1021/acsanm.4c0428310.1021/acsanm.4c04283","DOIUrl":"https://doi.org/10.1021/acsanm.4c04283https://doi.org/10.1021/acsanm.4c04283","url":null,"abstract":"In this work, we report the graphene-promoted formation of an interfacial oxide layer when certain metals are deposited on graphene. We probe interfacial oxide formation through the observation that several metals, when 10–12 nm in thickness and deposited on graphene on a transparent substrate, show a change in optical contrast compared to that in areas where the metal directly contacts the substrate. Aluminum shows this effect, while platinum and nickel do not exhibit such a pronounced optical contrast change. To understand this phenomenon, we characterize the Al-graphene, Ti-graphene, and Ni-graphene interfaces using techniques including X-ray photoelectron spectroscopy depth profiling, X-ray reflectivity, and Raman spectroscopy. These techniques show the presence of oxide at the buried metal–graphene interface for the cases of aluminum and titanium deposition, and we discuss how this explains the change in optical contrast. We show that this process is sensitive to the background vacuum level during deposition. In the case of nickel, we did not observe the presence of an oxide. Building upon these findings, we propose structures for Al-graphene, Ti-graphene, and Ni-graphene interfaces. We propose a model based on the metal work function and interaction with graphene that can guide the metals for which interfacial oxidation is to be expected, and we discuss the role of the deposition conditions in controlling the extent of oxide formation. These observations provide important implications for various devices using graphene as either the channel or the contact. Depending on whether a metal–graphene interfacial oxide is desirable and its functionality, these findings will afford guidance for their fabrications in the future.","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142608730","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}

引用次数: 0