Materials Letters: X最新文献_第8页

A novel asymmetric structured nanocomposite PEO-Cloisite based membrane for salt and dye separation 一种新型不对称结构纳米复合PEO-Cloisite盐染料分离膜

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100141

S. Sujithra, G. Arthanareeswaran

{"title":"A novel asymmetric structured nanocomposite PEO-Cloisite based membrane for salt and dye separation","authors":"S. Sujithra, G. Arthanareeswaran","doi":"10.1016/j.mlblux.2022.100141","DOIUrl":"https://doi.org/10.1016/j.mlblux.2022.100141","url":null,"abstract":"<div>In this study a novel approach was adopted to couple cloisite functionalised with PEO nanoparticles to modify the polyether sulfone (PES) at low pressure nanofiltration membrane for the removal of salts and dyes from waste water. PES/f-(PEO-Cloisite) nanocomposite membranes were fabricated by phase inversion process in presence of DMF as solvent. The functionalised PEO-Cloisite mixture was characterised by SEM-EDX and the membranes were characterised by hydrophilicity and morphology. The highest water flux of 152.77 Lm−2h−1 was observed for 4.5 wt% of PEO-Cloisite in PES membrane. Contact angle values reduced from 74.3° to 60.9° with the increase in the concentration of PEO-Cloisite and confirmed the increase of hydrophilicity. The membrane performance was tested using model saline and dye solutions by low pressure nanofiltration under longer run mode. This study infers that modification of PES membranes using functionalised PEO-Cloisite increase the membrane stability can be used to alleviate the fouling in the treatment of industrial waste water.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100141"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000217/pdfft?md5=609739a2ce7e022521662e1b52c3cdd7&pid=1-s2.0-S2590150822000217-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72118549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flow stress improvement of a nickel multicrystal by physical vapor thin film deposition to reduce surface effects 通过物理气相薄膜沉积改善镍多晶体的流动应力以减少表面效应

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100145

Pierre-Antoine Dubos , Ameni Zaouali , Pierre-Yves Jouan , Mireille Richard-Plouet , Valerie Brien , David Gloaguen , Baptiste Girault

引用次数: 0

In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications 原位合成CuO纳米颗粒并将其固定在藻酸盐-聚氨基胺纳米凝胶中用于光催化应用

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100148

A. Córdoba , B. Durán , S. Bonardd , D. Diaz Diaz , A. Leiva , C. Saldías

{"title":"In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications","authors":"A. Córdoba , B. Durán , S. Bonardd , D. Diaz Diaz , A. Leiva , C. Saldías","doi":"10.1016/j.mlblux.2022.100148","DOIUrl":"10.1016/j.mlblux.2022.100148","url":null,"abstract":"<div>Herein, we report a feasible approach for preparation of crosslinked alginate (Alg) and poly(amido amine) (PAMAM) nanogels (Alg-PAMAM NGs), using a water-in-oil-in-water (w/o/w) double emulsion route, via strong electrostatic interactions between anionic groups coming from alginate and previously incorporated Cu2+ ions. CuO nanoparticles (NPs) with average diameter about 65 nm were in situ obtained into Alg/PAMAM nanogels by treatment of embedded Cu2+ ions in NGs with NaBH4 at 25 °C under air atmosphere. The prepared Alg-PAMAM and Alg-PAMAM-CuO NGs were characterized using FT-IR and UV–visible spectroscopy, as well as scanning transmission electron microscopy (STEM). The presence of PAMAM dendrimers helped both to obtain structurally compact nanogels and an adequate stabilization of CuO NPs. Finally, the photocatalytic performance of the Alg-PAMAM-CuO NGs was tested via the decomposition of methyl orange in aqueous solution, under visible light irradiation.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100148"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S259015082200028X/pdfft?md5=a83b8c4446c7c845f35c57ec764d3af9&pid=1-s2.0-S259015082200028X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45002990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Growth of indium-incorporated κ-Ga2O3 thin film lattice-matched to the ε-GaFeO3 substrate ε-GaFeO3衬底晶格匹配掺铟κ-Ga2O3薄膜的生长

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100149

Hiroyuki Nishinaka , Osamu Ueda , Noriaki Ikenaga , Noriyuki Hasuike , Masahiro Yoshimoto

{"title":"Growth of indium-incorporated κ-Ga2O3 thin film lattice-matched to the ε-GaFeO3 substrate","authors":"Hiroyuki Nishinaka , Osamu Ueda , Noriaki Ikenaga , Noriyuki Hasuike , Masahiro Yoshimoto","doi":"10.1016/j.mlblux.2022.100149","DOIUrl":"10.1016/j.mlblux.2022.100149","url":null,"abstract":"<div>Ga2O3 has attracted significant attention for various applications such as power-switching applications and deep-ultraviolet optoelectronics. In this study, we demonstrated a lattice-matching κ-(In1−xGax)2O3 thin film grown on an ε-GaFeO3 substrate via the mist chemical vapor deposition process. The X-ray diffraction peak of the thin film was almost coincident with that of the substrate and exhibited Laue oscillations. Atomic force microscopy revealed that the surface of the κ-(In1−xGax)2O3 thin film exhibited a step-terrace morphology and was atomically flat. The selected area electron diffraction of transmission electron microscopy showed that the diffraction spots of the thin film and substrate overlapped, indicating that the thin film was almost lattice-matched with the substrate. We believe that the lattice-matched κ-(In1−xGax)2O3 thin film with an ε-GaFeO3 substrate will contribute significantly to the demonstration of ferroelectric κ-Ga2O3 based high electron mobility transistors.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100149"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000291/pdfft?md5=1554edeaa9c6a978bafb7723ca6c00e1&pid=1-s2.0-S2590150822000291-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45464494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Plasma transferred arc cladding of Ni-Cr-B-Si coating on copper substrate 铜基体上Ni-Cr-B-Si涂层的等离子转移电弧熔覆

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100137

Chao Zhang, Ruidong Wang, Rong Hu, Zhiyu Chen, Yuwen Zhang, Xionggang Lu

引用次数: 2

Self- blowing non-isocyanate polyurethane foam: Synthesis, characterization and properties 自吹非异氰酸酯聚氨酯泡沫:合成、表征和性能

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100142

S. Anitha , G Unnikrishnan , K.S. Santhosh Kumar

{"title":"Self- blowing non-isocyanate polyurethane foam: Synthesis, characterization and properties","authors":"S. Anitha , G Unnikrishnan , K.S. Santhosh Kumar","doi":"10.1016/j.mlblux.2022.100142","DOIUrl":"10.1016/j.mlblux.2022.100142","url":null,"abstract":"<div>Polyurethane (PU) foams are inevitable for many applications from comfort materials or energy saving to aerospace. Today, greener routes for their production have gained thoughtful attention among the scientific community by avoiding mainly the use of toxic isocyanates. An easily scalable process for the realization of self-blown isocyanate-free PU (poly (hydroxy urethane)-PHU) foams by exploiting suitable amines and cyclic carbonates is demonstrated in this work. The foaming is attributed to the release of CO2, from the reaction of cyclic carbonate of resorcinol diglycidyl ether (RDGCC) with amine terminated oligomeric phenyl hydroxy amine (AOPHA), where a parallel reaction of the hydroxyl groups and amino groups with the cyclic carbonate groups are competing during polymerization and culminate in poly (hydroxy urethane) foam. The released gas was confirmed as CO2 from GC–MS and temperature dependent FTIR. The realized flexible PHU foam is thermally stable (>250 ℃) with adhesive strength between Al-Al as 1.5 to 2.0 MPa, and with a closed cell structure possessing a density of 480 kg/m3.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100142"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000229/pdfft?md5=1d12cf12d5ff51ffeaed0ef1b48f3eb5&pid=1-s2.0-S2590150822000229-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43605777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of magnetic-electric-ultrasonic fields on microstructure and properties of Ni60A laser cladding coating 磁-电-超声场对Ni60A激光熔覆层组织和性能的影响

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100132

Houming Zhou, Zixin Chen, Mingfu Li, Yuxu Zhu, Caixing Xu, Jinhu Zhou

{"title":"Effect of magnetic-electric-ultrasonic fields on microstructure and properties of Ni60A laser cladding coating","authors":"Houming Zhou, Zixin Chen, Mingfu Li, Yuxu Zhu, Caixing Xu, Jinhu Zhou","doi":"10.1016/j.mlblux.2022.100132","DOIUrl":"10.1016/j.mlblux.2022.100132","url":null,"abstract":"<div>Ni60 coating is prepared utilizing laser cladding on 45 steel assisted by magnetic-ultrasonic-electric field. The effect of multi-physical fields on the cracking tendency, microstructure, phase composition, mechanical properties and corrosive resistance of coating is investigated. As results indicate, the macro-morphology of coating is affected by the multi-physical field and the microstructure is refined, which uniformizes the element distribution and prominently optimizes the tribological and anti-corrosive performance of coating, the number of cracks in the coating under multi-physical field reduce by 76.92%, compared with that without physical field, the average microhardness increases by 37.89%, the average friction coefficient decreases by 61.96%, the average wear loss decreases by 61.05%, the corrosive rate decreases by 93.01%.</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100132"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000126/pdfft?md5=bb68f3aebeb2af24ac58253311101168&pid=1-s2.0-S2590150822000126-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47941521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Impact of NiO nano-particles on colossal magneto-resistance of La0.70Ca0.30MnO3 composite NiO纳米粒子对La0.70Ca0.30MnO3复合材料巨磁电阻的影响

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100147

Navjyoti Boora , Prince Sharma , Asrar Alam , Shafaque Rahman , Rafiq Ahmad , V.P.S. Awana , A.K. Hafiz

{"title":"Impact of NiO nano-particles on colossal magneto-resistance of La0.70Ca0.30MnO3 composite","authors":"Navjyoti Boora , Prince Sharma , Asrar Alam , Shafaque Rahman , Rafiq Ahmad , V.P.S. Awana , A.K. Hafiz","doi":"10.1016/j.mlblux.2022.100147","DOIUrl":"10.1016/j.mlblux.2022.100147","url":null,"abstract":"<div>Mixed-valent perovskite manganite has gained considerable research interest due to the increasing demand for energy storage materials. Herein, we show that colossal magneto-resistance properties of La0.7Ca0.3MnO3 (LCMO) can be changed via nickel oxide (NiO) doping. A two-step conventional solid-state reaction method is used to synthesize LCMO-10% NiO composite. The phase purity, structural, electrical (resistivity), and magneto-transport properties of as-synthesized LCMO-10% NiO composite are detailed. NiO doping shifts metal–insulator transition temperature (TMI) from 263 K to 195 K and increases resistivity. The magneto-resistance (MR) measurements showed 10% NiO doping resulted in a maximum MR of ∼ -70.32% at 200 K (near TMI) and 10 T applied magnetic field. However, -0.0849% MR is seen at 290 K (RT) and 0.3 T. The increased ∼ -63.85% MR is found at 100 K and at 10 T, which is comparatively much higher than the pristine LCMO sample. This is due to the addition of NiO in LCMO that improves physical properties (i.e., grain size).</div>","PeriodicalId":18245,"journal":{"name":"Materials Letters: X","volume":"14 ","pages":"Article 100147"},"PeriodicalIF":1.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590150822000278/pdfft?md5=3bcc03d92d9ac31000ac851c9406d99c&pid=1-s2.0-S2590150822000278-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41802631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Copper-doped cotton-like malleable electrospun bioactive glass fibers for wound healing applications 用于伤口愈合的铜掺杂类棉延展性电纺生物活性玻璃纤维

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100133

Liliana Liverani , Theresa Reiter , Kai Zheng , Zuzana Neščáková , Aldo R. Boccaccini

引用次数: 8

Sustainable structural, morphological and magnetic properties of MgFe2O4 nanoparticles under dynamic shock wave exposure 动态冲击波作用下MgFe2O4纳米颗粒的可持续结构、形态和磁性

IF 1.7

Materials Letters: X Pub Date : 2022-06-01 DOI: 10.1016/j.mlblux.2022.100146

V. Mowlika , C.S. Naveen , A.R. Phani , A. Sivakumar , S.A. Martin Britto Dhas , R. Robert

引用次数: 1