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Differences in microscopic properties of two major interfacial transition zones in interface between new and old concrete
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-28 DOI: 10.1016/j.matlet.2025.138471
Zhenghao Fu , Hongbing Zhu , Zhengfa Guo
{"title":"Differences in microscopic properties of two major interfacial transition zones in interface between new and old concrete","authors":"Zhenghao Fu ,&nbsp;Hongbing Zhu ,&nbsp;Zhengfa Guo","doi":"10.1016/j.matlet.2025.138471","DOIUrl":"10.1016/j.matlet.2025.138471","url":null,"abstract":"<div><div>At present, there are few microscopic explanations for the fact that excessive interfacial roughness is detrimental to interfacial bonding strength between new and old concrete. To enrich this research field, interfacial transition zone between old concrete’ aggregates and new concrete (ITZ-A) and interfacial transition zone between old concrete’ cement mortar and new concrete (ITZ-C) were as research subjects in this study. Their differences were investigated using scanning electron microscopy and energy dispersive spectroscopy. Comparative analysis revealed significant differences in three critical micro parameters: calcium-to-silicon content ratio (Ca/Si), the percentage of enriched region of CH and C-S-H, and microporosity characteristics. ITZ-C has 16.39 % less Ca/Si, 64.11 % less enriched regions of CH, 49.86 % more enriched regions of C-S-H, and 30.96 % less porosity than the ITZ-A. Moreover, ITZ-C porosity was dominated by sub-0.1 μm<sup>2</sup> micropores (45.26 % of total pore area), while ITZ-A exhibited predominant 1–5 μm<sup>2</sup> mesopores (39.08 % of total pore area). Based on the denseness and integrity of the matrix of the microstructure, the microscopic properties of ITZ-C were superior to those of ITZ-A.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138471"},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NiSbSn0.5O4.5 medium-entropy alloy oxidation for hydrogen evolution and 5-hydroxymethylfurfural oxidation 用于氢气进化和 5-羟甲基糠醛氧化的 NiSbSn0.5O4.5 中熵合金氧化技术
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-28 DOI: 10.1016/j.matlet.2025.138479
Jia Hui , Chunfu Yan , Yongzheng Shi , Zhou Yang
{"title":"NiSbSn0.5O4.5 medium-entropy alloy oxidation for hydrogen evolution and 5-hydroxymethylfurfural oxidation","authors":"Jia Hui ,&nbsp;Chunfu Yan ,&nbsp;Yongzheng Shi ,&nbsp;Zhou Yang","doi":"10.1016/j.matlet.2025.138479","DOIUrl":"10.1016/j.matlet.2025.138479","url":null,"abstract":"<div><div>It is significant that electrocatalytic water splitting for hydrogen evolution reaction (HER) and 5-hydroxymethylfurfural (HMF) is oxidized as 2,5-furandicarboxylic acid (FDCA). Herein, the monocrystal NiSbSn<sub>0.5</sub>O<sub>4.5</sub> MEAO was synthesized, which shows good HMF oxidative reaction (HMFOR) sensitivity that the HMFOR potential is only 1.51 V at 10 mA cm<sup>−2</sup>, and the HMF is converted to FDCA with the Faradaic efficiency (<em>FE</em>) of 85.3 % at 1.2 V. Besides, the NiSbSn<sub>0.5</sub>O<sub>4.5</sub> shows a low HER overpotential of 229 mV at 10 mA cm<sup>−2</sup> in 1 M KOH + 0.1 M HMF, and the cell voltage is as low as 0.70 V at 10 mA cm<sup>−2</sup>. This work provides a potential avenue to design a ternary MEAO for electrocatalytic HER and HMFOR.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138479"},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tuning infrared radiative properties using Direct Laser Interference Patterning 利用直接激光干涉图案技术调谐红外辐射特性
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-28 DOI: 10.1016/j.matlet.2025.138485
Jon Gabirondo-López , Marcos Soldera , Josu M. Igartua , Andrés Fabián Lasagni , Gabriel A. López
{"title":"Tuning infrared radiative properties using Direct Laser Interference Patterning","authors":"Jon Gabirondo-López ,&nbsp;Marcos Soldera ,&nbsp;Josu M. Igartua ,&nbsp;Andrés Fabián Lasagni ,&nbsp;Gabriel A. López","doi":"10.1016/j.matlet.2025.138485","DOIUrl":"10.1016/j.matlet.2025.138485","url":null,"abstract":"<div><div>In this contribution, the feasibility of tailoring the radiative properties of stainless steel via Direct Laser Interference Patterning (DLIP) is introduced. By fabricating periodic micro- and nano-structures, emissivity is enhanced and made directionally dependent, as evidenced by direct spectral measurements and supported by Rigorous Coupled-Wave Analysis (RCWA) simulations. The experimental findings reveal that the modified surface acts as a spectrally selective emitter with a strong dependence on the emission direction, which is in good overall agreement with the predictions made by Maxwell’s equations. These results show DLIP’s potential for high-throughput, mask-free surface modification, with significant implications for fine-tuning of thermal management, radiative cooling, and related photonic applications.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138485"},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure and abrasion resistance of Cr0.5Ti0.5N nano-thick coatings deposited by reaction-assisted deposition
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-28 DOI: 10.1016/j.matlet.2025.138480
Chunli Qiu, YanChun Dong, Dongyao Zhang, Yanqi Zhao, Yong Yang, Hongjian Zhao
{"title":"Structure and abrasion resistance of Cr0.5Ti0.5N nano-thick coatings deposited by reaction-assisted deposition","authors":"Chunli Qiu,&nbsp;YanChun Dong,&nbsp;Dongyao Zhang,&nbsp;Yanqi Zhao,&nbsp;Yong Yang,&nbsp;Hongjian Zhao","doi":"10.1016/j.matlet.2025.138480","DOIUrl":"10.1016/j.matlet.2025.138480","url":null,"abstract":"<div><div>A Cr<sub>0.5</sub>Ti<sub>0.5</sub>N coating with 300 μm was prepared by incorporating the Ti elements into the CrN lattice through spraying. The coating structure was a face-centered cubic structure (FCC). The transmission electron microscope was used to observe that the coating was mainly composed of nano-equiaxed crystals. The roughness of the as-sprayed coating is Ra = 3.92 μm. The coating has a passivation phenomenon. The coating showed good wear and corrosion resistance for 10 days.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138480"},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SnS2 based Extended-gate Field-Effect Transistor for low voltage pH sensing
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-28 DOI: 10.1016/j.matlet.2025.138475
Uvanesh Kasiviswanathan , Lucky Agarwal , Chandan Kumar , Ajay Kumar Dwivedi , Shweta Tripathi
{"title":"SnS2 based Extended-gate Field-Effect Transistor for low voltage pH sensing","authors":"Uvanesh Kasiviswanathan ,&nbsp;Lucky Agarwal ,&nbsp;Chandan Kumar ,&nbsp;Ajay Kumar Dwivedi ,&nbsp;Shweta Tripathi","doi":"10.1016/j.matlet.2025.138475","DOIUrl":"10.1016/j.matlet.2025.138475","url":null,"abstract":"<div><div>This letter presents a pH sensing device based on ion exchange on the surface of <span><math><mrow><msub><mrow><mi>SnS</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> thin film for continuous monitoring. The <span><math><mrow><msub><mrow><mi>SnS</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> sensing membrane is fabricated using the sol–gel synthesis technique and deposited onto an indium tin oxide strip. The ion interaction on the <span><math><mrow><msub><mrow><mi>SnS</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> surface for pH sensing is an innovative approach in this work. The <span><math><mrow><msub><mrow><mi>SnS</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> thin film-based extended-gate FET exhibited a remarkable pH sensitivity of <span><math><mrow><mspace></mspace><mo>∼</mo><mn>41.89</mn><mspace></mspace><mi>mV</mi><mo>/</mo><mi>pH</mi></mrow></math></span>, along with outstanding linearity across pH levels ranging from 1 to 11. Additionally, the sensor demonstrates commendable stability across the linearity range, with a minimal drift rate of <span><math><mrow><mspace></mspace><mo>∼</mo><mn>2</mn><mo>.</mo><mn>1</mn><mspace></mspace><mi>mV</mi><mo>/</mo><mi>h</mi></mrow></math></span> at pH 9.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138475"},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Decorated V2O5 nanobelt over plasma spray exfoliated graphene for high-performance supercapacitor applications
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-27 DOI: 10.1016/j.matlet.2025.138461
Saurav Keshri, Chandan Kumar Nayak, Niranjan Pandit, Anushree Nag, Anup Kumar Keshri
{"title":"Decorated V2O5 nanobelt over plasma spray exfoliated graphene for high-performance supercapacitor applications","authors":"Saurav Keshri,&nbsp;Chandan Kumar Nayak,&nbsp;Niranjan Pandit,&nbsp;Anushree Nag,&nbsp;Anup Kumar Keshri","doi":"10.1016/j.matlet.2025.138461","DOIUrl":"10.1016/j.matlet.2025.138461","url":null,"abstract":"<div><div>Herein, we synthesized a novel composite electrode material by incorporating vanadium pentoxide nanobelts (VONB) in plasma spray exfoliated graphene (PSEG) using facile ultrasonication technique. Electrochemical behaviour of the synthesized composite was studied using cyclic voltammetry (CV), galvanostatic charge/discharge (GCD) and EIS. A symmetrical supercapacitor was fabricated using 3 wt% V<sub>2</sub>O<sub>5</sub> in PSEG (VG3) within a large potential window of −1V to 1 V in 1 M Na<sub>2</sub>SO<sub>4</sub> electrolyte. VG3 demonstrated an energy and power density of 46.5 Wh/kg and 2000 W/kg respectively with cyclic stability of 96.50 % up to 10,000 cycles.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138461"},"PeriodicalIF":2.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface modification of nano graphite for highly efficient metal-free oxygen evolution electrocatalyst in acid
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-27 DOI: 10.1016/j.matlet.2025.138470
Yunyi Zhu , Xu Zhao , Xin Yue , Shaoming Huang
{"title":"Surface modification of nano graphite for highly efficient metal-free oxygen evolution electrocatalyst in acid","authors":"Yunyi Zhu ,&nbsp;Xu Zhao ,&nbsp;Xin Yue ,&nbsp;Shaoming Huang","doi":"10.1016/j.matlet.2025.138470","DOIUrl":"10.1016/j.matlet.2025.138470","url":null,"abstract":"<div><div>It is necessary to develop efficient carbon-based metal-free electrocatalysts for acidic oxygen evolution reaction (OER) to address the oxidation and dissolution of traditional metal-based electrocatalysts. Herein, oxygen-modified graphite plate electrode (OMGPE) was fabricated and exhibited efficient activity and good stability for acidic OER. Moreover, it can be revealed that the OER process on OMGPE follows an adsorbate evolution mechanism (AEM) pathway.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138470"},"PeriodicalIF":2.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and fabrication of highly hydrophobic CeO2 films with Ti insertion layer
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-27 DOI: 10.1016/j.matlet.2025.138459
Zhen Shi , Chenxi Fang , Yancheng Kong , Xiangyang Tan , Ang Ding , Jibin Pu , Xuefeng Zhang
{"title":"Design and fabrication of highly hydrophobic CeO2 films with Ti insertion layer","authors":"Zhen Shi ,&nbsp;Chenxi Fang ,&nbsp;Yancheng Kong ,&nbsp;Xiangyang Tan ,&nbsp;Ang Ding ,&nbsp;Jibin Pu ,&nbsp;Xuefeng Zhang","doi":"10.1016/j.matlet.2025.138459","DOIUrl":"10.1016/j.matlet.2025.138459","url":null,"abstract":"<div><div>A maximum contact angle value of 120° for hydrophobic surface has been reported on smooth CF<sub>3</sub>-terminated surfaces, but the poor durability of polymers strongly limits their further applications. Herein, highly hydrophobic CeO<sub>2</sub> films were prepared with the insertion of Ti layer using magnetron sputtering, remarkably, the water contact angle reached as high as 123°, achieving the theoretical maximum water contact angle on smooth surface (∼120°). Results showed that CeO<sub>2</sub> films were grown on Ti films with good adherence and applied bias voltage influenced the structure and properties of top CeO<sub>2</sub> layers. Inhibited growth of high surface energy crystal texture, high content of hydrophobic C-C/C-H component, high Ce<sup>3+</sup> content and low lattice oxygen to metal ratio were conducive to obtain highly hydrophobicity on flat CeO<sub>2</sub>, providing new approaches and scientific guidelines for regulating the wettability of CeO<sub>2</sub> films.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138459"},"PeriodicalIF":2.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MoS2/rGO electrocatalyst with MoO3 and 1T/2H-MoS2 species as active sites for efficient hydrogen evolution reaction
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-26 DOI: 10.1016/j.matlet.2025.138460
Zihan Zhang, Liguo Wei, Lishuang Zhao, Yu Zhang, Haihong Bai
{"title":"MoS2/rGO electrocatalyst with MoO3 and 1T/2H-MoS2 species as active sites for efficient hydrogen evolution reaction","authors":"Zihan Zhang,&nbsp;Liguo Wei,&nbsp;Lishuang Zhao,&nbsp;Yu Zhang,&nbsp;Haihong Bai","doi":"10.1016/j.matlet.2025.138460","DOIUrl":"10.1016/j.matlet.2025.138460","url":null,"abstract":"<div><div>Developing economic, efficient, and stable electrocatalysts for accelerating the hydrogen evolution reaction (HER) remains challenging. Here, MoS<sub>2</sub>/rGO electrocatalysts were prepared by a simple one-pot hydrothermal process for<!--> <!-->efficient HER in<!--> <!-->water splitting. Meanwhile, the MoO<sub>3</sub> and 1T/2H-MoS<sub>2</sub> species on the surface of rGO have the capability to furnish more electrocatalytic active sites. The obtained MoS<sub>2</sub>/rGO catalyst exhibits excellent HER activity with the low overpotential of 429<!--> <!-->mV at 10 <!--> <!-->mA cm<sup>−2</sup> current density, and the Tafel slope of 134<!--> <!-->mV dec<sup>−1</sup>. This study provides a new idea for the development of novel electrocatalysts for application in electrochemical energy devices.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"391 ","pages":"Article 138460"},"PeriodicalIF":2.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electromagnetic interference shielding performance of nano-structure pyrolytic carbon cement composite
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-03-26 DOI: 10.1016/j.matlet.2025.138465
N.K .Karthikeyan, S. Elavenil
{"title":"Electromagnetic interference shielding performance of nano-structure pyrolytic carbon cement composite","authors":"N.K .Karthikeyan,&nbsp;S. Elavenil","doi":"10.1016/j.matlet.2025.138465","DOIUrl":"10.1016/j.matlet.2025.138465","url":null,"abstract":"<div><div>This article comprehensively investigated on the advantage of using Nanostructure Pyrolytic Carbon (NSPC) to develop an electromagnetic interference (EMI) shielding material. The composite composed of a cement matrix with NSPC particle as nano-filler and silica fume (SF) as dispersing material. This study investigated the effect of NSPC particles on electrical resistivity and EMI shielding of cement paste matrix. The experimental results revealed that the dispersion of NSPC particles reduced electrical resistivity to 4953 Ω.cm that reduced two orders of magnitude. NSPC composites (3 wt%) have maximum and average electromagnetic shielding effectiveness of 60.08 dB and 52.61 dB with the highest frequency range for SE &gt; 50 is 9.6–12 GHz. Thus, NSPC particles will be a paradigm shift in material science to develop EMI shielding composites.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"390 ","pages":"Article 138465"},"PeriodicalIF":2.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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