Surfaces and Interfaces最新文献_第8页

Surface hardening of AISI 431 stainless steel by plasma electrolytic carbonitriding without sacrificing its corrosion resistance

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106216

R.L. Liu, B. Yi, Z. Li, Q.L. Liu

{"title":"Surface hardening of AISI 431 stainless steel by plasma electrolytic carbonitriding without sacrificing its corrosion resistance","authors":"R.L. Liu, B. Yi, Z. Li, Q.L. Liu","doi":"10.1016/j.surfin.2025.106216","DOIUrl":"10.1016/j.surfin.2025.106216","url":null,"abstract":"<div><div>Martensitic stainless steel is widely used in equipment of aerospace, marine and other fields for its good mechanical properties and moderate corrosion resistance. With the improved requirements of equipment performance, the wear and corrosion resistance of existing stainless steel are facing severe challenges. In this paper, effects of low voltage plasma electrolytic carbonitriding (PECN) on microstructure and properties of AISI 431 martensitic stainless steel were investigated systematically. The results show that AISI 431 stainless steel can be rapidly hardened by PECN. Especially, the hardening layer thickness of the sample PECNed at 160 V for 10 min is about 5 μm and is mainly composed of α'<sub>C /N</sub>, Fe<sub>3</sub>C and Fe<sub>2–3</sub> N phase, and then the surface hardness of stainless steel can improve to >2200 HV<sub>0.05</sub>. More interestingly, the wear resistance of stainless steel can be improved apparently along with the improved corrosion resistance. The corrosion current density of the PECNed layer in a 3.5 wt.% NaCl solution can be decreased by an order of magnitude. The reasons for these remarkable improvements are mainly due to the uniform and dense carbonitrided layer formed on the stainless steel by the present new kind of low voltage PECN. Moreover, the reaction formation mechanisms of low voltage PECN are analyzed.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106216"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642756","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

Synergistic effect of heterointerface engineering coupled with oxygen vacancies enriched Ag2O-WO2.8-SnO2 anchored carbon nanotubes nanocomposite for high-performance supercapacitor devices and their charge storage mechanism

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-12 DOI: 10.1016/j.surfin.2025.106198

Fouzia Mashkoor , Mohd Shoeb , Shushuai Zhu , Jahangeer Ahmed , Seung Man Noh , Changyoon Jeong

{"title":"Synergistic effect of heterointerface engineering coupled with oxygen vacancies enriched Ag2O-WO2.8-SnO2 anchored carbon nanotubes nanocomposite for high-performance supercapacitor devices and their charge storage mechanism","authors":"Fouzia Mashkoor , Mohd Shoeb , Shushuai Zhu , Jahangeer Ahmed , Seung Man Noh , Changyoon Jeong","doi":"10.1016/j.surfin.2025.106198","DOIUrl":"10.1016/j.surfin.2025.106198","url":null,"abstract":"<div><div>Incorporating oxygen vacancies into metal oxide-based nanocomposites has emerged as a powerful strategy for developing advanced supercapacitors. In this study, Ag<sub>2</sub>O-WO<sub>2.8</sub>-SnO<sub>2</sub> nanocomposites (AgWSn NCs) and their carbon nanotube-anchored counterpart (AgWSn/CNT NCs) were synthesized via a hydrothermal technique and systematically evaluated for their supercapacitor performance. The introduction of Ag<sub>2</sub>O into the WSn matrix and their integration with a CNT scaffold significantly enhanced the conductivity and increased the density of redox-active sites, resulting in a synergistic boost to electrochemical performance. The AgWSn NCs demonstrated a specific capacitance of 791.18 F/g at 2 A/g, which was significantly enhanced to 988.97 F/g upon anchoring onto CNT. This improvement underscores the pivotal role of CNT in improving conductivity and providing structural stability, thereby boosting overall performance. Moreover, AgWSn/CNT NCs based symmetric supercapacitor device (SS-device) unveiled excellent cycling stability, maintaining 94 % of its initial capacitance after 10,000 cycles. The device also attained a high energy density of 86.25 Wh/kg at 1500 W/kg, underscoring the material's potential for practical applications. This research underscores a rational approach to designing high-performance electrode materials by leveraging oxygen vacancies and integrating CNTs into hybrid structures for advanced supercapacitor applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106198"},"PeriodicalIF":5.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642760","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

Comparison of the inhibition effects of Morpholine-based inhibitors on plain carbon steel in 3.5 wt.% NaCl and 0.5 M H2SO4 environments: Experimental and theoretical

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-11 DOI: 10.1016/j.surfin.2025.106206

M.Amirian Chegeni , S. Karimi , M. Rezaeivala , M. Esmailzadeh

{"title":"Comparison of the inhibition effects of Morpholine-based inhibitors on plain carbon steel in 3.5 wt.% NaCl and 0.5 M H2SO4 environments: Experimental and theoretical","authors":"M.Amirian Chegeni , S. Karimi , M. Rezaeivala , M. Esmailzadeh","doi":"10.1016/j.surfin.2025.106206","DOIUrl":"10.1016/j.surfin.2025.106206","url":null,"abstract":"<div><div>Three organic compounds (<em>i1, i2</em>, and <em>i3</em>) were tested for their ability to inhibit corrosion on carbon steel in both saline (3.5 wt. % NaCl) and acidic (0.5 M H<sub>2</sub>SO<sub>4</sub>) solutions. Multiple techniques, including potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM), were employed to evaluate corrosion behavior. All three inhibitors demonstrated positive effects, shifting the open-circuit potential to more positive values and reducing corrosion current density. However, <em>i3</em> consistently outperformed <em>i1</em> and <em>i2</em>, particularly in the acidic environment. At a concentration of 2.0 mM, <em>i3</em> achieved maximum inhibition efficiencies of 94.2 % and 99.7 % in NaCl and H<sub>2</sub>SO<sub>4</sub> solutions, respectively, based on the PDP and EIS results. EIS further confirmed the superior performance of <em>i3</em>, with higher impedance values and increased corrosion resistance at higher concentrations. Adsorption studies revealed that <em>i3</em> followed the Langmuir adsorption isotherm in the acidic solution, indicating strong adsorption to the metal surface. SEM visualized the significant reduction in corrosion damage caused by the inhibitors, especially <em>i3</em>. However, <em>i2</em> showed decreased stability over time, leading to reduced inhibition. Molecular dynamics simulations provided insights into the adsorption behavior of the inhibitors. <em>i3</em> exhibited stronger bonding with the iron surface in the acidic environment, contributing to its superior performance. In conclusion, <em>i3</em> emerged as the most effective inhibitor for carbon steel in both saline and acidic solutions. Its strong adsorption, high inhibition efficiency, and sustained performance make it a promising candidate for corrosion protection applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106206"},"PeriodicalIF":5.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644727","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

Influence of magnetic chain structures in micropillar array surface on the directional transport of droplets

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-11 DOI: 10.1016/j.surfin.2025.106195

Ruiqi Zhang, Li Jia, Xinyuan Liu

{"title":"Influence of magnetic chain structures in micropillar array surface on the directional transport of droplets","authors":"Ruiqi Zhang, Li Jia, Xinyuan Liu","doi":"10.1016/j.surfin.2025.106195","DOIUrl":"10.1016/j.surfin.2025.106195","url":null,"abstract":"<div><div>In recent years, significant advancements have been made in the study of magnetically responsive micropillars. However, the challenge of improving transport efficiency at a constant magnetic induction intensity still persists. In this paper, two types of micropillars were prepared: those with a vertical magnetic chain structure (MVMC) and those with an inclined magnetic chain structure (MIMC), by designing the distribution of magnetic nanoparticles within the micropillars. The droplet transport modes and capacities on the surfaces of the MVMC and the MIMC were different. With the same magnetic field, the MIMC exhibited a maximum bending angle of 87°, which was more favorable for droplet transport than that with the 72° angle achieved by MVMC. At the magnetic induction intensity of 160 mT, the MIMC surface facilitated rapid horizontal transport of a 2 μL droplet at the magnet moving velocity of 240 mm/s, which was 33 % faster than that at 180 mm/s achieved by MVMC. Furthermore, at the same magnet moving velocity of 130 mm/s, the MIMC surface was capable of transporting droplets up to 50 μL in volume, significantly surpassing the capacity of the MVMC surface, which could only transport up to 8 μL.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106195"},"PeriodicalIF":5.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593463","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

In-situ formation of Bi-O-C bonds on BiOCl/azo-porous organic polymers heterostructure for enhanced visible light-driven photocatalytic activity

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-11 DOI: 10.1016/j.surfin.2025.106208

Xiang Li , Qiyao Li , Yunzhu Wang , Nengsheng Liu , Wanjin Yu , Chunxia Liu , Ping Du , Yi Xia , Sufang He

{"title":"In-situ formation of Bi-O-C bonds on BiOCl/azo-porous organic polymers heterostructure for enhanced visible light-driven photocatalytic activity","authors":"Xiang Li , Qiyao Li , Yunzhu Wang , Nengsheng Liu , Wanjin Yu , Chunxia Liu , Ping Du , Yi Xia , Sufang He","doi":"10.1016/j.surfin.2025.106208","DOIUrl":"10.1016/j.surfin.2025.106208","url":null,"abstract":"<div><div>Porous organic polymers (POPs) are highly effective in wastewater decontamination owing to enhanced light-harvesting, abundant active sites, and tunable band structures. In this study, a novel heterojunction was designed and constructed by coupling oxygen vacancy BiOCl and azo-porous organic polymers (A-POP) through an in-situ solvothermal reaction. The characterization results revealed that the Bi-O-C bonds at the interface of BiOCl/A-POP heterojunction promoted the reinforcement of the built-in electric field and increased oxygen vacancies, thereby improving the interface migration of photogenerated carriers and photocatalytic performance. The BiOCl/A-POP composites exhibited enhanced photocatalytic degradation of Rhodamine B (RhB), achieving a maximum degradation of 90 % within 20 min under visible light. In addition, the probable photodegradation pathways and mechanisms were proposed based on experiments and density functional theory calculations. This study offers a new approach to developing heterostructured photocatalysts through inorganic/organic coupling to eliminate pollutants from wastewater.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106208"},"PeriodicalIF":5.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621196","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

Glucosyl OPE-modified halloysite nanotubes and their potential as phototherapy agents for bacterial infections 葡萄糖基 OPE 改性哈洛来石纳米管及其作为细菌感染光疗剂的潜力

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-11 DOI: 10.1016/j.surfin.2025.106207

Aurora Mancuso , Marina Massaro , Federica Leone , Paola Maria Bonaccorsi , Giuseppe Compagnini , Chiara Maria Antonietta Gangemi , Fausto Puntoriero , Maria Ribagorda , Vittorio Scardaci , César Viseras , Serena Riela , Anna Barattucci

{"title":"Glucosyl OPE-modified halloysite nanotubes and their potential as phototherapy agents for bacterial infections","authors":"Aurora Mancuso , Marina Massaro , Federica Leone , Paola Maria Bonaccorsi , Giuseppe Compagnini , Chiara Maria Antonietta Gangemi , Fausto Puntoriero , Maria Ribagorda , Vittorio Scardaci , César Viseras , Serena Riela , Anna Barattucci","doi":"10.1016/j.surfin.2025.106207","DOIUrl":"10.1016/j.surfin.2025.106207","url":null,"abstract":"<div><div>Bacterial infections pose a significant health threat, worsened by the growing issue of antibiotic resistance and biofilm formation. Phototherapies, particularly photodynamic therapy (PDT), offer promising non-invasive alternatives due to their high efficacy and minimal side effects. These therapies utilize photosensitizers (PSs), which, when activated by light, generate reactive oxygen species (ROS) that lead to bacterial cell death. Recent advancements have focused on enhancing PDT by integrating PSs with nanomaterials. Halloysite nanotubes (HNTs), a natural clay mineral, are of particular interest due to their unique properties, including intrinsic antibacterial activity and the ability to integrate into bacterial biofilms. By combining HNTs with photosensitizers, we aimed to improve treatment efficacy. In this study, we synthesized a novel glucosyl OPE derivative and covalently attached it to HNTs, forming the composite <strong>HNTs@Glu-OPE</strong>. This system was thoroughly characterized, and its ROS generation capabilities were tested under 365 nm light irradiation using uric acid as a probe. Loaded with vancomycin, <strong>HNTs@Glu-OPE</strong> represents a multifunctional approach to PDT, enhancing both the delivery and effectiveness of therapeutic agents against resistant bacterial strains.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106207"},"PeriodicalIF":5.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628879","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}

引用次数: 0

Volume compensation directed enhanced photoluminescence in Li+ Co-doped Y4Al2O9:Eu3+ phosphors for solid state lighting applications

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-10 DOI: 10.1016/j.surfin.2025.106199

Utpal Ghorai , Antika Das , Tanmoy Ghosh , Bishal Bhangi , Karamjyoti Panigrahi , Nilesh Mazumder , Tapan Kumar Parya , Subhajit Saha

{"title":"Volume compensation directed enhanced photoluminescence in Li+ Co-doped Y4Al2O9:Eu3+ phosphors for solid state lighting applications","authors":"Utpal Ghorai , Antika Das , Tanmoy Ghosh , Bishal Bhangi , Karamjyoti Panigrahi , Nilesh Mazumder , Tapan Kumar Parya , Subhajit Saha","doi":"10.1016/j.surfin.2025.106199","DOIUrl":"10.1016/j.surfin.2025.106199","url":null,"abstract":"<div><div>Rare-earth activated red phosphors have become the indispensable component for the generation of warm white light from phosphor converted white light emitting diodes (PC WLEDs). Eu<sup>3+</sup> doped Yittrium based hosts are considered as the highly promising red phosphors and thus have widely been investigated in the last few years. However, The mismatch in the size of Eu<sup>3+</sup> and Y<sup>3+</sup> restricts their PL enhancement below the desired limit. Herein, Li<sup>+</sup> co-activated Y<sub>4</sub>Al<sub>2</sub>O<sub>9</sub>:Eu<sup>3+</sup> phosphors have been synthesized via facile solvothermal technique. All the phosphors exhibit characteristic <sup>5</sup>D<sub>0</sub> → <sup>7</sup>F<sub>j</sub> (j=1–4) transitions of Eu<sup>3+</sup> and introduction of Li<sup>+</sup> co-activator results in nearly 2.5 fold enhancement of PL intensity as compared to pristine Y<sub>4</sub>Al<sub>2</sub>O<sub>9</sub>:Eu<sup>3+</sup> phosphors. Moreover, both the excited state lifetime and thermal stability of the phosphors are remarkably improved upon Li<sup>+</sup> co-activation. The enhancement in PL efficiency has been explained in light of volume compensation induced lattice relaxation mechanism. Strong red emission was achieved by the red LED fabricated by employing Li<sup>+</sup> co-activated Y<sub>4</sub>Al<sub>2</sub>O<sub>9</sub> : Eu<sup>3+</sup> phosphors under 3 Volt driving potential. The demonstrated volume compensation technique possesses great promise to play the pivotal role in designing highly luminescent phosphors for LED applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106199"},"PeriodicalIF":5.7,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143631983","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

In situ synthesis of iron oxide on graphene oxide: Assisting bone scaffold to achieve magnetoelectrical stimulation

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-10 DOI: 10.1016/j.surfin.2025.106202

Xiuwen Gao , Zhenyu Zhao , Zichao Zeng , Yan Yan Chen , Wei Li , Fangwei Qi , Pan He , Cijun Shuai

{"title":"In situ synthesis of iron oxide on graphene oxide: Assisting bone scaffold to achieve magnetoelectrical stimulation","authors":"Xiuwen Gao , Zhenyu Zhao , Zichao Zeng , Yan Yan Chen , Wei Li , Fangwei Qi , Pan He , Cijun Shuai","doi":"10.1016/j.surfin.2025.106202","DOIUrl":"10.1016/j.surfin.2025.106202","url":null,"abstract":"<div><div>Integration of superparamagnetic iron oxide (Fe<sub>3</sub>O<sub>4</sub>) nanoparticles and piezoelectric polyvinylidene fluoride (PVDF) was expected to reconstruct the magnetoelectric microenvironment of bone tissue. Nevertheless, the dispersion of Fe<sub>3</sub>O<sub>4</sub> in PVDF matrix was a challenge. Herein, Fe<sub>3</sub>O<sub>4</sub> nanoparticles were in situ grown on the surface of graphene oxide (GO) nanosheets (GO@Fe<sub>3</sub>O<sub>4</sub>) to inhibit their aggregation in PVDF scaffold. Specifically, the enormous specific surface area of GO supplied abundant space for the uniform nucleation and growth of Fe<sub>3</sub>O<sub>4</sub> nanoparticles. In turn, Fe<sub>3</sub>O<sub>4</sub> would act as steric hindrance to suppress the stacking of GO nanosheets. Morphological analysis indicated that GO@Fe<sub>3</sub>O<sub>4</sub> was uniformly distributed in PVDF matrix. Particularly, X-ray photoelectron spectroscopy and polarization microscope measurements revealed that oxygen-containing functional groups on GO forced the orientation arrangement of -CF<sub>2</sub> groups in PVDF through hydrogen bonding, forming piezoelectric β phase. As a result, the electrical output of the scaffold was significantly enhanced, with an output current of 57 nA and voltage of 8.5 V. Cell culture demonstrated that the enhanced electrical stimulation and synergistic magnetic stimulation effectively promoted the proliferation and differentiation of cells. Overall, this work might provide a perspective for the construction of scaffolds with simultaneous electrical and magnetic stimulation.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106202"},"PeriodicalIF":5.7,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609506","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

Point defect scattering driven low lattice thermal conductivity in p-type Mg3Sb2 for mid-temperature thermoelectric applications

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-10 DOI: 10.1016/j.surfin.2025.106204

S. Priyadharshini , V. Vijay , S. Kamalakannan , J. Archana , M. Navaneethan

{"title":"Point defect scattering driven low lattice thermal conductivity in p-type Mg3Sb2 for mid-temperature thermoelectric applications","authors":"S. Priyadharshini , V. Vijay , S. Kamalakannan , J. Archana , M. Navaneethan","doi":"10.1016/j.surfin.2025.106204","DOIUrl":"10.1016/j.surfin.2025.106204","url":null,"abstract":"<div><div>Zintl-phase <em>p</em>-type magnesium antimonide (Mg<sub>3</sub>Sb<sub>2</sub>) is a promising mid-temperature (300- 900 K) thermoelectric (TE) material owing to its intrinsic low thermal conductivity, less toxicity, greater abundance, and compatibility. This present study focuses on enhancing the TE properties of Mg<sub>3</sub>Sb<sub>2</sub> via the introduction of heavy elements Ge and Ag at lighter element Mg sites by two-step solid-state techniques. The influence of Ag-Ge modifies the band structure and strengthens the scattering of different wavelength phonons via various types of defects. This investigation indicates that (Ge, Ag) co-doping could significantly enhance the electrical conductivity (5328 S/m), and Seebeck coefficient (171.6 μV/K). The band structure modification leads to improving the overall power factor of 158.5 μW/mK<sup>2</sup> at 753 K for Mg<sub>2.92</sub>Ge<sub>0.05</sub>Ag<sub>0.03</sub>Sb<sub>2</sub>. Simultaneously, the contribution of different types of defects strengthened the phonon transport, which leads to achieve a minimized lattice thermal conductivity of 0.42 W/mK for Mg<sub>2.92</sub>Ge<sub>0.05</sub>Ag<sub>0.03</sub>Sb<sub>2</sub>. Importantly, the enhanced power factor and low thermal conductivity resulting in a peak <em>zT</em> of 0.24 at 753 K for Mg<sub>2.92</sub>Ge<sub>0.05</sub>Ag<sub>0.03</sub>Sb<sub>2</sub>. Thus, the results highlight the effect of heavy element co-doping strategy modifies the band structure and strengthens the phonon scattering via defect engineering in <em>p</em>-type Mg<sub>3</sub>Sb<sub>2</sub>.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"63 ","pages":"Article 106204"},"PeriodicalIF":5.7,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746997","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

Breathable triboelectric textiles with high efficiency air filtration and rapid self-disinfection properties for bioprotection and wireless biosensing

IF 5.7 2区材料科学

Surfaces and Interfaces Pub Date : 2025-03-10 DOI: 10.1016/j.surfin.2025.106203

Ran Tao , Caihong Wang , Yurui Yang , Yan Zhou , Wenxia Wang , Jun Zhang , Bing Zhao , Sijun Xu

{"title":"Breathable triboelectric textiles with high efficiency air filtration and rapid self-disinfection properties for bioprotection and wireless biosensing","authors":"Ran Tao , Caihong Wang , Yurui Yang , Yan Zhou , Wenxia Wang , Jun Zhang , Bing Zhao , Sijun Xu","doi":"10.1016/j.surfin.2025.106203","DOIUrl":"10.1016/j.surfin.2025.106203","url":null,"abstract":"<div><div>The frequent emergence of new infectious diseases and the increasing difficulty of epidemic prevention and control have highlighted the necessity for advanced bio-protective materials. Herein, a breathable and waterproof triboelectric medical protective fabric (TMPF) with high air filtration efficiency, as well as rapid self-disinfection and biosensing functions were prepared. TMPF was mainly consisted of a filtration layer of silver nanoparticle-embedded polyimide nanofibers (AgPINFs) and a conductive support layer of AgNP/Ag nanowire (AgNW)/carbon nanotube (CNT)-coated PI fabric. As-prepared TMPF possessed the following advantages: (i) good water resistance and moisture permeability (≥17.2 kPa; 3569.9 m²·24 h); (ii) high filtration efficiency with 99.94% for PM 0.3; (iii) active microbicidal abilities with killing rates of ∼100% against bacterial including <em>E. Coli</em> and <em>S. aureus</em> and an inactivation rate of ∼100% against MS2 virus at an Ag content of 4000 mg/kg with 2 h contact; (v) a wireless real-time sensing ability for limb movement and fine biomotion such as respiratory and laryngeal movements such as breathing, coughing, swallowing, drinking, and speaking through TMPF-based wearable wireless monitoring system (18.7 g). As-prepared TEPF exhibited favorable moisture-penetrability, hydrophobicity, high filtration efficiency, and self-disinfection properties, as well as a self-powered biomotion sensing function, which showed potential applications in medical field.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"62 ","pages":"Article 106203"},"PeriodicalIF":5.7,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628876","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