Applied Surface Science最新文献_第5页

Effect of micro-strain and (100) texture intensity on corrosion behaviors of NiTi alloy via laser powder bed fusion

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-03-27 DOI: 10.1016/j.apsusc.2025.163081

A. Yan, T. Chen, H.Z. Li, H.Z. Lu, W.S. Cai, P.X. Li, L.M. Kang, C. Yang

{"title":"Effect of micro-strain and (100) texture intensity on corrosion behaviors of NiTi alloy via laser powder bed fusion","authors":"A. Yan, T. Chen, H.Z. Li, H.Z. Lu, W.S. Cai, P.X. Li, L.M. Kang, C. Yang","doi":"10.1016/j.apsusc.2025.163081","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163081","url":null,"abstract":"We report the effect of micro-strain and (100) texture intensity on corrosion behaviors of NiTi shape memory alloys (SMAs) subjected to laser powder bed fusion (LPBF) and further elucidate their underlying pitting mechanism in a 3.5 wt% NaCl solution. Our findings reveal that the low micro-strain and simultaneous the high (100) texture intensity result in outstanding corrosion resistance featuring the low corrosion current density in the NiTi SMA sample (SMM) with the middle LPBF power and scan speed, outperforming the corresponding current ones reported in NiTi SMAs via various materials processing approaches. Essentially, this is attributed to the minimized diffusion channels by the low micro-strain and the dense uniform passivation film by the high (100) texture intensity. Two additional samples, SLL (low LPBF power and scan speed) and SHH (high LPBF power and scan speed), exhibit different corrosion behaviors. Based on the high micro-strain and low (100) texture intensity, the SLL sample shows transverse corrosion with numerous shallow pits, while the SHH sample experiences longitudinal corrosion with deeper pits. These variations may stem from Cl− penetration hindered by compressive stress in SLL and faster diffusion channels in the SHH due to a higher proportion (18.8%) of fine grains. These findings offer valuable insights for optimizing microstructure design to improve the corrosion resistance of metallic materials produced by LPBF.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"34 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723923","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

MXenes with entropy-derived mitigation of shuttle effect in sodium-sulfur batteries

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-03-27 DOI: 10.1016/j.apsusc.2025.163082

Saba Khan, Mohammad H. Ghoncheh, Chandra V. Singh

{"title":"MXenes with entropy-derived mitigation of shuttle effect in sodium-sulfur batteries","authors":"Saba Khan, Mohammad H. Ghoncheh, Chandra V. Singh","doi":"10.1016/j.apsusc.2025.163082","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163082","url":null,"abstract":"Room-temperature sodium-sulfur batteries (NaSBs) hold great promise for large-scale energy storage due to their high energy density and resource abundance. However, the notorious shuttle effect, caused by the dissolution of sodium polysulfides (Na2Sn; n = 1–8) in electrolyte, significantly undermines the performance and lifespan of NaSBs. To address this, we investigate high-entropy (HE) Ti2CO2 MXenes, where Ti is partially substituted with Mn, V, and Cr, as cathode additives. The configurational entropy stabilizes crystal structure, enhances electronic properties, and enables strong adsorption of sodium polysulfides. Ab-initio molecular dynamics confirm the stability of HE-MXenes with reduced Cr, e.g., (Ti0.25Mo0.5V0.125Cr0.125)2CO2, which exhibit significantly higher binding energies for polysulfides (−1.672 to −3.99 eV) compared to pristine MXene (−0.987 to −1.43 eV) and common electrolytes like DOL and DME (−0.18 to −0.98 eV). These systems reduce Na2S dissociation energy barrier (∼ 0.92 eV), promoting efficient Na+ ion diffusion. HE-MXenes also show enhanced density of electronic states at the Fermi level, facilitating faster electrochemical processes. The combination of strong polysulfide binding, low dissociation barriers, and stable electronic conductivity effectively mitigates the shuttle effect while improving overall electrochemical performance of NaSBs. HE-MXenes present a robust strategy for advancing NaSB technology, offering superior cycling stability and longer operational lifespans.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"31 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723472","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

Efficient photocatalytic removal of typical water pollutants synergized by nitrogen defects and Fe-Ti alloy

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-03-27 DOI: 10.1016/j.apsusc.2025.163065

Di Wang, Jing Wang, Yiqiang Wu, Delin Sun, Wenlei Wang

{"title":"Efficient photocatalytic removal of typical water pollutants synergized by nitrogen defects and Fe-Ti alloy","authors":"Di Wang, Jing Wang, Yiqiang Wu, Delin Sun, Wenlei Wang","doi":"10.1016/j.apsusc.2025.163065","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163065","url":null,"abstract":"Transition metal ions and non-metal co-doped carbon-based materials have attracted extensive attention due to their unique properties and excellent catalytic effect. Fe2O3/TiO2@Fe/Ti-N-C multifunctional photocatalyst with Fe-Ti alloy and abundant nitrogen defects was reported. The photocatalytic results showed that the removal rates of Cr (VI), Congo red (CR) and levofloxacin (LFX) in water by Fe2O3/TiO2@Fe/Ti-N-C were 88.46, 96.71 and 99.06 %, respectively. The photoelectric test results show that bimetallic conjugated structure of Fe and Ti can effectively increase the light absorption range and accelerate the carrier separation. N-defects can significantly increase the lifetime and concentration of photogenerated holes, thereby improving the catalytic efficiency of the photocatalyst. The single factor experiments proved that the optimal pH for the degradation of Cr(VI), CR and LFX by Fe2O3/TiO2@Fe/Ti-N-C was 1, 11 and 9, respectively. In addition, Ca2+ and Mg2+ promoted the degradation of Cr(VI) and inhibited the degradation of CR and LFX. SO42- inhibited the degradation of Cr(VI) and promoted the degradation of CR and LFX. Cl- inhibited the degradation of Cr(VI), CR and LFX. This study elucidates the mechanism of N-defects and bimetallic sites in photocatalytic reactions, and provides theoretical support for efficient removal of heavy metals and organic pollutants in water.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"15 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723473","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

Enhanced optical properties of aluminum-doped zinc oxide thin films fabricated via twist substrate-assisted glancing angle deposition

IF 6.3 2区材料科学

Applied Surface Science Pub Date : 2025-03-26 DOI: 10.1016/j.apsusc.2025.163080

Z. Garduño , L.G. Daza , A. Iribarren , R. Castro-Rodríguez

{"title":"Enhanced optical properties of aluminum-doped zinc oxide thin films fabricated via twist substrate-assisted glancing angle deposition","authors":"Z. Garduño , L.G. Daza , A. Iribarren , R. Castro-Rodríguez","doi":"10.1016/j.apsusc.2025.163080","DOIUrl":"10.1016/j.apsusc.2025.163080","url":null,"abstract":"<div><div>This study presents a methodology termed Twist Substrate-Assisted Glancing Angle Deposition (TSA-GLAD) for the fabrication of nanocolumnar aluminum-doped zinc oxide (AZO) thin films on borosilicate glass substrates.By integrating substrate twisting into the deposition process, we achieved enhanced control over the nanostructural characteristics of the films. The TSA-GLAD technique combines radio-frequency sputtering with controlled precession substrate rotations at varying speeds of 15, 30 and45 rpm and a twist frequency of 0.5 Hz over a 40-minute deposition period. Our results demonstrate a remarkable reduction in Solar Weighted Reflectance (SWR) from 20 % in single-layer films to as low as 13 % in multilayer configurations, indicating superior anti-reflective capabilities. The films exhibit a minimum refractive index of 2.16 at 550 nm, increasing to 2.79 at 800 nm, and maintaining over 80 % transparency in the visible spectrum. Additionally, the average porosity of the films was quantified at 12.3 %, 13.2 %, and 14.1 % for samples M4, M5, and M6, respectively, highlighting the impact of substrate rotation on structural characteristics. The films exhibit remarkable ultraviolet (UV) absorption, blocking over 90 % of radiation below 335 nm, and attenuating approximately 23 % of near-infrared (NIR) radiation within the 700 nm to 1100 nm range. The findings reveal the TSA-GLAD technique capability in enhancing the optical properties of AZO thin films. Future challenges include refining morphology control, exploring different substrates, and assessing durability under varying environmental conditions for practical applications in solar cells and smart windows.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"698 ","pages":"Article 163080"},"PeriodicalIF":6.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713196","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

Non-spontaneous synthetic pathways for anisotropic metal chalcogenides with phase junctions and stacking faults for enhanced photo electrochemical performance

IF 6.3 2区材料科学

Applied Surface Science Pub Date : 2025-03-26 DOI: 10.1016/j.apsusc.2025.163026

Thangavel Sakthivel, Hyeon Jin Kim, Gyeong Hun Lee, Ji Woong Chang

{"title":"Non-spontaneous synthetic pathways for anisotropic metal chalcogenides with phase junctions and stacking faults for enhanced photo electrochemical performance","authors":"Thangavel Sakthivel, Hyeon Jin Kim, Gyeong Hun Lee, Ji Woong Chang","doi":"10.1016/j.apsusc.2025.163026","DOIUrl":"10.1016/j.apsusc.2025.163026","url":null,"abstract":"<div><div>In a breakthrough for photoelectrochemical catalyst design is minimizing carrier recombination. We have developed advanced phase junction solid nanostructures like CdS, CdSe, ZnS and ZnSe through Kirkendall effect driven by cation exchange (CE) from anisotropic metal nanoparticles. The CE reaction produces unfeasible solid crystal structures specifically the CdS and ZnS display alternating sphalerite and wurtzite phases with stacking faults. On the contrary, CdSe and ZnSe have grain boundaries with sphalerite and wurtzite phase junctions. By tracking intermediate solid nanostructures, we observed that the initial hexagonal phase transformed into a cubic phase, with the product retaining the morphology of the template due to their similar sublattices. Comprehensive carrier transport analysis such as transient decay times (τ) and photoluminescence spectra confirmed that improved charge separation compared with monophase. Sphalerite and wurtzite junction forms the heterojunction because both have different work functions, where type II charge transfer happen. The plate-like phase junction CdS achieved a remarkable 0.9 mA cm−2 photocurrent density at 1.23 V vs RHE and an applied bias photon-to-current efficiency reached 1.1 %, outperforming standard monophase CdS. Photoluminescence spectra confirmed ZnS works under visible light due to the stacking faults. This novel, single-step method for phase junction and stacking faults catalysts could revolutionize energy conversion technologies, offering unprecedented control over catalyst morphology.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"698 ","pages":"Article 163026"},"PeriodicalIF":6.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713129","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

Adhesion layer free room-temperature pulsed laser deposition of ultrathin Au films

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-03-26 DOI: 10.1016/j.apsusc.2025.163077

Danil A. Kolosovsky, Timur M. Zalyalov, Sergei A. Ponomarev, Nikolay B. Miskiv, Alexey A. Morozov, Yuri G. Shukhov, Alexander V. Shevlyagin, Aleksandr A. Kuchmizhak, Sergey V. Starinskiy

{"title":"Adhesion layer free room-temperature pulsed laser deposition of ultrathin Au films","authors":"Danil A. Kolosovsky, Timur M. Zalyalov, Sergei A. Ponomarev, Nikolay B. Miskiv, Alexey A. Morozov, Yuri G. Shukhov, Alexander V. Shevlyagin, Aleksandr A. Kuchmizhak, Sergey V. Starinskiy","doi":"10.1016/j.apsusc.2025.163077","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163077","url":null,"abstract":"The unique optical and electrical characteristics of ultrathin Au films make them ideal for plasmonic, optoelectronic, and metamaterial applications. However, fabricating continuous Au films just a few nanometers thick remains highly challenging. Conventional approaches require adhesion layers, which increase optical losses and often fail to meet optoelectronic device specifications. Another technique involves cooling the substrate to cryogenic levels, but this can cause structural peeling and cracking. We suggest employing pulsed laser deposition in a low-pressure oxygen atmosphere to form ultrathin conductive Au films at room temperature without adhesion layers. In this process, the percolation threshold of Au films is reduced due to the high flux and low kinetic energy of arriving atoms. The direct simulation Monte Carlo shows that at an oxygen pressure of 10 Pa, the kinetic energy of deposited atoms drops roughly tenfold, and their flux decreases by 30 % compared to vacuum expansion. The resulting films are about 5 nm thick, exhibit 72 % average transmittance in visible light, and have a sheet resistance of 30  Ω/sq, yielding a high figure of merit of 0.55  Ω−1/10.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"49 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713122","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

A comprehensive strategy for enhancing stability and luminescence of CsPbBr3 nanoparticles via low dose electron-beam treatment

IF 6.3 2区材料科学

Applied Surface Science Pub Date : 2025-03-26 DOI: 10.1016/j.apsusc.2025.163084

Mingxing Li , Xiaoge Wang , Xiaofan Cao , Chunjun Liang , Jing Ju , Fangtian You

{"title":"A comprehensive strategy for enhancing stability and luminescence of CsPbBr3 nanoparticles via low dose electron-beam treatment","authors":"Mingxing Li , Xiaoge Wang , Xiaofan Cao , Chunjun Liang , Jing Ju , Fangtian You","doi":"10.1016/j.apsusc.2025.163084","DOIUrl":"10.1016/j.apsusc.2025.163084","url":null,"abstract":"<div><div>Lead-halide perovskite (LHP) nanoparticles (NPs), such as CsPbBr3, exhibit exceptional luminescent properties, making them promising candidates for optoelectronic applications. However, maintaining their stability on solid substrates is challenging due to light and heat-induced degradation, even without water and oxygen. Although various post-processing methods aim to enhance stability, achieving this without compromising luminescence is difficult yet critical for practical devices. This study investigates the stability of monolayer CsPbBr3 NPs under simulated light and thermal stress, identifying accelerated post-growth processes as the main instability source. To address this, we evaluated surface ligand post-treatments, including ultraviolet-ozone, plasma, and electron beam (e-beam) irradiation. Among these, low-dose e-beam irradiation proved most effective, significantly enhancing both luminescence and structural stability. Using correlative cathodoluminescence electron microscopy (CCLEM) and transmission electron microscopy (TEM), we established a dose-dependent relationship where optimal e-beam doses suppress nanoparticle growth and boost luminescence, while excessive doses degrade luminescence. Mechanistically, e-beam treatment forms a stable carbonaceous encapsulation layer on nanoparticle surfaces, preventing inter-particle contact and passivating surface impurities without causing significant structural damage. These findings demonstrate that low-dose e-beam irradiation is a versatile tool for tuning CsPbBr3 NPs properties, offering new pathways to optimize the stability and performance of perovskite-based materials in advanced optoelectronic applications.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"698 ","pages":"Article 163084"},"PeriodicalIF":6.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713191","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

Spin Effect-Induced layer spacing Adaptation in vanadium bronze cathodes for Fast Zinc-Ion storage

IF 6.3 2区材料科学

Applied Surface Science Pub Date : 2025-03-26 DOI: 10.1016/j.apsusc.2025.163086

Yue Wang , Haoran Zou , Zihao Wang , Lincheng Xu , Yong Yan , Yingjie Feng , Xin Chen , Dong Wang , Fan Li

{"title":"Spin Effect-Induced layer spacing Adaptation in vanadium bronze cathodes for Fast Zinc-Ion storage","authors":"Yue Wang , Haoran Zou , Zihao Wang , Lincheng Xu , Yong Yan , Yingjie Feng , Xin Chen , Dong Wang , Fan Li","doi":"10.1016/j.apsusc.2025.163086","DOIUrl":"10.1016/j.apsusc.2025.163086","url":null,"abstract":"<div><div>The cathode material of aqueous zinc-ion batteries is a critical constraint on their further application due to the poor structure stability. Consequently, understanding their charge–discharge mechanisms and developing high-performance materials are key to promoting their use. This study investigates the effect of dopant atoms, particularly manganese (Mn), on the properties of vanadium bronze (MVO). Mn, with its larger ionic radius and higher d-electron count, enhanced the electrochemical properties of MVO: the specific capacity is up to 370 mAh/g @100 mA/g and has good rate performance, with a capacity of about 300 mAh/g at 1000 mA/g, a capacity retention rate of 92 % after 2000 cycles and showed the excellent capacity and stability. Mn was present in both the interlayers and within the vanadium bronze structure, promoting the self-adaptive and a more pronounced electron transfer with the metal–oxygen bonds in the structure. This enhanced the covalent character of the metal–oxygen bonds and improved the intrinsic conductivity. The results of in-situ Raman and SQUID measurements revealed changes in Mn–O bond lengths on molecular and atom level and the intrinsic nature of the “pillar effect”. These findings provide new insights into ion-doping strategies for enhancing electrochemical performance in zinc-ion batteries.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"698 ","pages":"Article 163086"},"PeriodicalIF":6.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713128","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

Porous High-Entropy phosphides with multiple active sites for Synergistically promoting electrocatalytic oxygen evolution reaction

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-03-26 DOI: 10.1016/j.apsusc.2025.163090

Zhili Xu, Zhiyuan Wang, Lida Yang, Hui Xu

{"title":"Porous High-Entropy phosphides with multiple active sites for Synergistically promoting electrocatalytic oxygen evolution reaction","authors":"Zhili Xu, Zhiyuan Wang, Lida Yang, Hui Xu","doi":"10.1016/j.apsusc.2025.163090","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163090","url":null,"abstract":"High-entropy phosphides (HEPs) are promising due to their diverse composition, creating multiple active sites that facilitate OER intermediate transfer and weaken scaling relationships, allowing for fine-tuned reaction kinetics. Here, we report the synthesis of porous HEPs with multiple active sites via a metal–organic framework (MOF)-templated method, which exhibit exceptional electrocatalytic activity and stability for OER. The HEPs, composed of Co, Cu, Fe, Ni, Zn, and P, feature a unique porous structure with abundant defect sites and a high surface area, providing numerous active sites for electrochemical reactions. The synergistic effects of the multiple metal elements and the phosphorus component enable the HEPs to achieve a remarkably low overpotential of 273 mV at 10 mA cm−2 in 1 M KOH solution. Mechanism study and experimental characterizations reveal that the HEPs’ excellent performance can be attributed to the accelerated mass transport of porous architecture, enhanced charge transfer from coated carbon layer, and improved adsorption of oxygen intermediates from the multiple active sites. This work demonstrates the potential of HEPs as a new class of electrocatalysts for OER and provides insights into the design of advanced materials for energy-related applications.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"390 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713123","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

The origin of the reduced phosphorus-carbon bond stability of α-aminoalkylphosphonic acid grafted on titania

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-03-26 DOI: 10.1016/j.apsusc.2025.163078

Rui An, Léon Luntadila Lufungula, Vera Meynen, Frank Blockhuys

{"title":"The origin of the reduced phosphorus-carbon bond stability of α-aminoalkylphosphonic acid grafted on titania","authors":"Rui An, Léon Luntadila Lufungula, Vera Meynen, Frank Blockhuys","doi":"10.1016/j.apsusc.2025.163078","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163078","url":null,"abstract":"TiO2 materials grafted with organophosphonic acids have been reported in various application fields, owing to the desired specific interactions provided by the organic functionalities, in combination with the structural properties and mechanical and chemical stability provided by the TiO2 supports. In this work, the thermal stability of aminoalkylphosphonic acids and alkylphosphonic acids grafted on TiO2 P25 was investigated with infrared spectroscopy and TGA, and the results show that the thermal stability of aminomethylphosphonic acid and (S)-(+)-1-aminoethylphosphonic acid grafted on TiO2 P25 is significantly lower than that of other aminoalkylphosphonic acids and the alkylphosphonic acids on TiO2 P25. Moreover, there is P–H bond formation associated with the detachment of the aminomethyl and aminoethyl moieties, in contrast to the other aminoalkylphosphonic acids and the alkylphosphonic acids. The results of DFT calculations confirm that the P–C bond strengths, expressed as values of the electron density in the bond, of the α-aminoalkylphosphonic acids grafted on anatase (1 0 1) are indeed lower than those of the other aminoalkylphosphonic acids and alkylphosphonic acids and provide a possible explanation.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"57 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713132","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