Materials Research Bulletin最新文献_第3页

Co-doped Bi2Fe4O9 microcrystals as potent peroxymonosulfate activator for efficient photocatalytic degradation of RhB 共掺杂Bi2Fe4O9微晶作为高效光催化降解RhB的过氧单硫酸盐活化剂

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-17 DOI: 10.1016/j.materresbull.2025.113665

Yuanchun Li, Enrong Zhang, Lingfeng Tang, Yong Fu, Simin Yin

{"title":"Co-doped Bi2Fe4O9 microcrystals as potent peroxymonosulfate activator for efficient photocatalytic degradation of RhB","authors":"Yuanchun Li, Enrong Zhang, Lingfeng Tang, Yong Fu, Simin Yin","doi":"10.1016/j.materresbull.2025.113665","DOIUrl":"10.1016/j.materresbull.2025.113665","url":null,"abstract":"<div><div>Co-doped Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> (BFCO) microcrystals with well-defined facets were successfully synthesized by a facile hydrothermal method. The microstructure, magnetic and photocatalytic activity of BFCO were systematically investigated. It was found that Co doping in Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> greatly varied the morphology of BFCO microcrystals from rods to cubes and induced an efficient photocatalytic degradation of RhB via PMS activation under visible light. The BFCO-3 microcrystals exhibited the highest photocatalytic activity, with 98.2 % of RhB degraded in 30 min (<em>k</em> = 0.137 min<sup>−1</sup>), 4.6 times higher than that of pure Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> (0.030 min<sup>−1</sup>). It was revealed that the Co doping led to a narrowed bandgap (<strong>1.75 eV</strong>), and effective separation of photo-generated electrons and holes in BFCO. And the abundant Fe<sup>2+</sup>and O<sub>v</sub> in BFCO also contributed to the remarkable photocatalytic PMS activation. Moreover, the sample possessed enhanced ferromagnetic property, making it highly attractive for magnetic recollecting in practical wastewater purification.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113665"},"PeriodicalIF":5.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Sustainable energy storage device based on NiCo2O4 nanoflakes via one step microwave irradiation 基于NiCo2O4纳米片一步微波辐照的可持续储能装置

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-17 DOI: 10.1016/j.materresbull.2025.113664

Bindu Mishra , P Sivaraman , Navinchandra Shimpi

{"title":"Sustainable energy storage device based on NiCo2O4 nanoflakes via one step microwave irradiation","authors":"Bindu Mishra , P Sivaraman , Navinchandra Shimpi","doi":"10.1016/j.materresbull.2025.113664","DOIUrl":"10.1016/j.materresbull.2025.113664","url":null,"abstract":"<div><div>NiCo<sub>2</sub>O<sub>4</sub> nanoflakes (NFs) were synthesized by microwave irradiation method. Characterization of the synthesized NiCo<sub>2</sub>O<sub>4</sub> NFs was done using XRD, FTIR, SAED, SEM, HR-TEM and XPS. The crystallite size calculated using Debye-Scherrer formula was found to be ∼7.86 and nanoflake morphology was confirmed using SEM/TEM. Electrochemical studies, including cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS), were conducted to evaluate the performance. In a three-electrode system, NiCo<sub>2</sub>O<sub>4</sub> NFs demonstrated a high specific capacitance of 932 F g⁻¹ at a scan rate of 5 mVs⁻¹ and retained 97.37% capacitance after 2000 cycles at 5 A g⁻¹. Asymmetric supercapacitor device (NiCo<sub>2</sub>O<sub>4</sub> ||6 M KOH|| AC) delivered a maximal energy density of 25.90 Wh Kg⁻¹ and power density of 96.92 W Kg⁻¹. Due to rapid redox activity and superior electron-ion transport, NiCo<sub>2</sub>O<sub>4</sub> NFs exhibited excellent properties for usage in high performance supercapacitors with exceptional power density.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113664"},"PeriodicalIF":5.7,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 stable and reusable Z-scheme ZnO/Ag2CO3 photocatalyst for efficient degradation of emerging water pollutants 一种稳定且可重复使用的Z-scheme ZnO/Ag2CO3光催化剂，用于高效降解新出现的水污染物

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-17 DOI: 10.1016/j.materresbull.2025.113663

Ping Huang , Wei Feng , Wenhui Li , Yuquan Zhuo , Ziwen Yang , Shuo Yang , Donglai Han

{"title":"A stable and reusable Z-scheme ZnO/Ag2CO3 photocatalyst for efficient degradation of emerging water pollutants","authors":"Ping Huang , Wei Feng , Wenhui Li , Yuquan Zhuo , Ziwen Yang , Shuo Yang , Donglai Han","doi":"10.1016/j.materresbull.2025.113663","DOIUrl":"10.1016/j.materresbull.2025.113663","url":null,"abstract":"<div><div>We report ZnO/Ag<sub>2</sub>CO<sub>3</sub> (Z/AC) p–n heterojunctions synthesized via a facile two-step method to enable Z-scheme charge transfer for enhanced photocatalysis performance. Integrated SEM, TEM, XRD, FT-IR, XPS and BET analyses show that ∼5 µm wurtzite-ZnO nanospindles (NSs) are uniformly decorated with 50–200 nm monoclinic-Ag<sub>2</sub>CO<sub>3</sub> nanoparticles (NPs), forming a rough, mesoporous heterojunction whose specific surface area increases from 1.82 to 13.78 m<sup>2</sup> g⁻¹. This microarchitecture narrows the optical band-gap from 3.09 to 2.88 eV, suppresses photoluminescence by ∼65.1 %, triples the transient photocurrent, and delivers markedly enhanced photocatalytic activity. The Z/AC-4 heterojunction demonstrates the highest photocatalytic activity, achieving 97.4 % for tetracycline (TC). Scavenger experiments reveal hydroxyl radicals (·OH), holes (h⁺) and superoxide radicals (·O<sub>2</sub><sup>⁻</sup>) as key contributors, with ·OH dominant; Notably, the Z/AC-4 photocatalyst maintains 73.4 % TC degradation efficiency after five cycles, demonstrating excellent structural stability and recyclability. This work provides mechanistic insight into Z-scheme-driven photocatalysis.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113663"},"PeriodicalIF":5.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 supercapacitor performance with hierarchically porous SnO₂ embedded in reduced graphene oxide nanosheets 在还原氧化石墨烯纳米片中嵌入分层多孔SnO 2增强超级电容器性能

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-13 DOI: 10.1016/j.materresbull.2025.113662

Yaodong Guo , Hassan Idris Abdu , Hamouda Adam Hamouda , Omer Almamoun , Taslim Aboudou , Eman Shaiba Thani , Sefiu Abolaji Rasaki

{"title":"Enhanced supercapacitor performance with hierarchically porous SnO₂ embedded in reduced graphene oxide nanosheets","authors":"Yaodong Guo , Hassan Idris Abdu , Hamouda Adam Hamouda , Omer Almamoun , Taslim Aboudou , Eman Shaiba Thani , Sefiu Abolaji Rasaki","doi":"10.1016/j.materresbull.2025.113662","DOIUrl":"10.1016/j.materresbull.2025.113662","url":null,"abstract":"<div><div>This study presents hierarchically porous SnO₂ microspheres embedded in reduced graphene oxide (SnO₂/rGO-T) as high-performance supercapacitor electrodes. Synthesized via hydrothermal treatment with fluoride ions and annealing (300 °C/500 °C), the SnO₂/rGO-T structure leverages Ostwald ripening and high-energy crystal facets to optimize porosity and ion diffusion. Fluoride ions guide SnO₂ growth on ultrathin rGO nanosheets, forming uniform microspheres with enhanced conductivity. Annealing at 500 °C yields superior crystallinity and hierarchical structure, enabling SnO₂/rGO-500 to achieve a specific capacitance of 241 F/g (2 M KOH), energy density of 22.7 Wh/kg, and power density of 900 W/kg at 1 A/g, with 89.7 % capacitance retention after 10,000 cycles—outperforming SnO₂/rGO-300 and bare SnO₂. The synergy between rGO (preventing aggregation) and annealed SnO₂ (improving charge transfer) underpins this performance. This work offers a scalable, rational design strategy for SnO₂-rGO electrodes in energy storage applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113662"},"PeriodicalIF":5.3,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Reducing urea consumption in hydrothermal synthesis of TiO2 with exposed (001) facets via steam splitting of layered titanate K2Ti2O5 通过蒸汽裂解层状钛酸盐K2Ti2O5减少水热合成暴露（001）面TiO2的尿素消耗

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-11 DOI: 10.1016/j.materresbull.2025.113660

Wenjing Xiang , Anwen Lv , Rui Sun , Chang Liu

{"title":"Reducing urea consumption in hydrothermal synthesis of TiO2 with exposed (001) facets via steam splitting of layered titanate K2Ti2O5","authors":"Wenjing Xiang , Anwen Lv , Rui Sun , Chang Liu","doi":"10.1016/j.materresbull.2025.113660","DOIUrl":"10.1016/j.materresbull.2025.113660","url":null,"abstract":"<div><div>While using urea as a substitute for HF in the hydrothermal treatment of titanates represents a more environmentally benign approach for synthesizing TiO<sub>2</sub> with high exposure of (001) facets, this method still necessitates substantial urea consumption. In this study, we demonstrate that pretreatment of K<sub>2</sub>Ti<sub>2</sub>O<sub>5</sub> with steam treatment followed by acid washing (yielding titanic acid 2TiH-mP, 225 m²/g) significantly reduces urea requirements during subsequent hydrothermal processing, compared to titanic acid obtained through direct acid washing of K<sub>2</sub>Ti<sub>2</sub>O<sub>5</sub> (2TiH, 19 m²/g). Hydrothermal treatment in 0.5 M urea at 200 °C for 24 h yielded titanium dio1xide with 47 % (001) facet exposure from 2TiH-mP, versus 27 % from 2TiH. The 2TiH-mP-derived crystals exhibited enhanced photocatalytic activity in methylene blue degradation, with optimal samples achieving 68 % (001) facet exposure. This performance enhancement is attributed to abundant unsaturated Ti5C sites on the (001) facets, which serve as highly active centers for adsorption and degradation processes.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113660"},"PeriodicalIF":5.3,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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-luminescence correlation studies in Dy /Eu doped A2P2O7 (A = Ca/Sr/Ba and Zn) phosphors for white light generation Dy /Eu掺杂A2P2O7 （A = Ca/Sr/Ba和Zn）白光荧光粉的结构-发光相关性研究

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-11 DOI: 10.1016/j.materresbull.2025.113661

M. Parvathy , P.S. Ghosh , A. Arya , M. Sabeena

{"title":"Structure-luminescence correlation studies in Dy /Eu doped A2P2O7 (A = Ca/Sr/Ba and Zn) phosphors for white light generation","authors":"M. Parvathy , P.S. Ghosh , A. Arya , M. Sabeena","doi":"10.1016/j.materresbull.2025.113661","DOIUrl":"10.1016/j.materresbull.2025.113661","url":null,"abstract":"<div><div>Structure-luminescence correlation in Dy/Eu doped pyrophosphate materials (A<sub>2</sub>P<sub>2</sub>O<sub>7</sub>; <em>A</em> = Ca, Sr, Ba, Zn) is investigated, unveiling novel strategies for white light generation. The Hubbard corrected density functional theory (DFT+<em>U</em>) calculations reveal that Dy<sup>3+</sup> doping reduces the coordination number and metal-oxygen bond lengths. The local lattice distortions enhance the asymmetric crystal field, favoring <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>15/2</sub>, <sup>6</sup>H<sub>13/2</sub> transitions corresponding to blue and yellow emissions following the <span><math><mrow><mn>4</mn><mi>f</mi><mi>→</mi><mn>5</mn><mi>d</mi><mi>→</mi><mn>4</mn><mi>f</mi></mrow></math></span> energy transfer pathway. The luminescence mechanism confirms that Eu²⁺ exhibits stronger hybridization with oxygen, yielding blue-green emission through the <span><math><mrow><mi>f</mi><mo>−</mo><mi>d</mi></mrow></math></span> transition, while Eu³⁺ contributes red-orange emission via <span><math><mrow><mi>f</mi><mo>−</mo><mi>f</mi></mrow></math></span> transitions. The Eu doped systems are more resistant to lattice strain than Dy doped ones, and structurally more perturbed due to smaller ionic radii and stronger Coulomb interactions. These findings predict the oxidation state variations based on structural constraints and offer deep insight into the electronic structure and luminescence behavior of pyrophosphate phosphors.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113661"},"PeriodicalIF":5.3,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 between thermal and plasma-enhanced atomic layer deposition of ZnO on fullerene powder for photocatalytic dye removal 热和等离子体增强ZnO原子层沉积在富勒烯粉末上光催化脱除染料的比较

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-10 DOI: 10.1016/j.materresbull.2025.113659

Regina Del Sole , Antonella Milella , Francesco Fracassi , Paola Parlanti , Mauro Gemmi , Anna Maria Coclite , Francesco Nocito , Angela Dibenedetto , Fabio Palumbo

{"title":"Comparison between thermal and plasma-enhanced atomic layer deposition of ZnO on fullerene powder for photocatalytic dye removal","authors":"Regina Del Sole , Antonella Milella , Francesco Fracassi , Paola Parlanti , Mauro Gemmi , Anna Maria Coclite , Francesco Nocito , Angela Dibenedetto , Fabio Palumbo","doi":"10.1016/j.materresbull.2025.113659","DOIUrl":"10.1016/j.materresbull.2025.113659","url":null,"abstract":"<div><div>ZnO was deposited on fullerene C<sub>60</sub> by Atomic Layer Deposition (ALD), carried out in thermal (t-ALD) and Plasma Enhanced (PE-ALD) mode. The ALD technique allowed to grow stoichiometric and crystalline ZnO, in increasing amount with the number of cycles. The conformal deposition was successful not only on the surface but even on the walls of the pores of the material: t-ALD enabled the coverage of both superficial and deeper pores, whereas, in the case of PE-ALD, ZnO was found mainly on the walls of the most superficial ones. The photocatalytic activity of the ZnO@C<sub>60</sub> nanocomposites obtained at 400 cycles by thermal and PE-ALD was evaluated through monitoring the discoloration of a 1.0·10<sup>–5</sup> M methylene blue solution upon UV irradiation (λ=254 nm) over 180 min. Results indicate that the photocatalytic performance of the t-ALD coated C<sub>60</sub> was higher than the one obtained by PE-ALD (54 % vs 33 %, respectively), in accordance with the higher amount of ZnO on the t-ALD treated samples.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113659"},"PeriodicalIF":5.3,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigation of Ni2P/rGO porous composite catalyst for photocatalytic degradation and electrocataly hydrogen evolution reaction performance Ni2P/rGO多孔复合催化剂光催化降解和电催化析氢性能的研究

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-09 DOI: 10.1016/j.materresbull.2025.113657

Qing Xu , Siqi Huang , Yuguang Lv , Libo Du

{"title":"Investigation of Ni2P/rGO porous composite catalyst for photocatalytic degradation and electrocataly hydrogen evolution reaction performance","authors":"Qing Xu , Siqi Huang , Yuguang Lv , Libo Du","doi":"10.1016/j.materresbull.2025.113657","DOIUrl":"10.1016/j.materresbull.2025.113657","url":null,"abstract":"<div><div>As energy demand rises and environmental issues become more severe, various industries urgently need sustainable materials, and bifunctional catalysts are receiving increased attention. This paper employs a simple phosphating method to prepare Ni<sub>2</sub>P-supported reduced graphene oxide porous materials (Ni<sub>2</sub>P/rGO) as a bifunctional catalyst for photocatalytic degradation of pollutants and electrocatalytic hydrogen evolution reaction (HER). The introduction of polystyrene microspheres (PS) significantly improved the surface morphology of rGO, endowing Ni<sub>2</sub>P/rGO with excellent photocatalytic and electrocatalytic properties. The Ni<sub>2</sub>P/rGO composites material exhibits good degradation capabilities for diverse dyes and tetracycline hydrochloride (TC), with the best removal effects observed for methylene blue and tetracycline wastewater. Under visible light, the degradation efficiencies of methylene blue (MB) and TC pollutants within 100 min were 91 % and 83 %, respectively. Furthermore, with a low overpotential of 21.4 mV, a Tafel slope of 46.57 mV·dec<sup>−1</sup>, and stability for 28 h, the Ni<sub>2</sub>P/rGO composite material demonstrates outstanding electrocatalytic hydrogen evolution performance in an alkaline environment. The above achievements mean that the current work has explored new trains of thought for the research and development of bifunctional catalysts.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113657"},"PeriodicalIF":5.3,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Atomic metastable point defects dominating the brittle-plastic transition process of fused silica: Self-trapped excitons 原子亚稳点缺陷主导熔融二氧化硅脆性-塑性转变过程：自俘获激子

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-08 DOI: 10.1016/j.materresbull.2025.113654

Dinghuai Yang , Zhaoyang Yin , Linjie Zhao , Jian Cheng , Yazhou Sun , Mingjun Chen

{"title":"Atomic metastable point defects dominating the brittle-plastic transition process of fused silica: Self-trapped excitons","authors":"Dinghuai Yang , Zhaoyang Yin , Linjie Zhao , Jian Cheng , Yazhou Sun , Mingjun Chen","doi":"10.1016/j.materresbull.2025.113654","DOIUrl":"10.1016/j.materresbull.2025.113654","url":null,"abstract":"<div><div>The inevitably processing-induced ∼μm brittle fractures on hard-brittle fused silica surfaces significantly degrade their mechanical-optical properties. Nevertheless, the key micro-structures dominating the brittle-plastic transition and corresponding regulation strategies were not determined. Herein, atomic self-trapped excitons (STEs) were found to play core roles during brittle-plastic transition. Based on molecular dynamics simulation and atomic characterization, it was found that STE was accumulated in brittle-plastic-mixing stages due to stress-induced intrinsic-structure modification. While fused silica cannot maintain steady states as STE density reaches its maximum. Meanwhile, metastable STE would be transformed into unstable “devastating” point defects, inducing brittle fractures. Accordingly, a regulation strategy was proposed to convert STE to stable intrinsic structures to put STE density away from the maximum, successfully inhibiting brittle fractures. Summarily, this work opens a convenient door to improve material plastic machinability through atomic regulation. It is meaningful for the high-performance application of fused silica and other agnate non-crystalline glass.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113654"},"PeriodicalIF":5.3,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Constructing carbon layer on SiO anode via interface engineering for high-performance lithium-ion batteries 基于界面工程的高性能锂离子电池SiO阳极碳层构建

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-07-08 DOI: 10.1016/j.materresbull.2025.113656

Tan Luo , Hao Jiang , Dong Fang , Jianchen Lu , Jinming Cai , Anvar Khamidov , Olim Ruzimuradov

{"title":"Constructing carbon layer on SiO anode via interface engineering for high-performance lithium-ion batteries","authors":"Tan Luo , Hao Jiang , Dong Fang , Jianchen Lu , Jinming Cai , Anvar Khamidov , Olim Ruzimuradov","doi":"10.1016/j.materresbull.2025.113656","DOIUrl":"10.1016/j.materresbull.2025.113656","url":null,"abstract":"<div><div>Silicon monoxide (SiO) is a promising anode material for lithium-ion batteries due to its high specific capacity, abundant resources, and simple synthesis. However, its large volume change (∼200%) during cycling leads to unstable SEI formation and rapid capacity decay. Here, we propose an interface engineering strategy using carbon dots (CDs) to form a protective carbon layer on the SiO surface. <strong>This approach reduces electrolyte and active material consumption.</strong> The resulting SiO/C electrode delivers a high specific capacity of 1094 mAh <em>g</em><sup>−1</sup> after 300 cycles at a cycle rate of 0.4 C and achieves an energy density of 432.5 Wh kg<sup>−1</sup>. <em>In-situ</em> electrochemical impedance spectroscopy reveals that the carbon coating facilitates faster charge transfer and alleviates mechanical stress during cycling. This work demonstrates a scalable and effective approach for improving the electrochemical performance of SiO anodes for next-generation lithium-ion batteries.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"193 ","pages":"Article 113656"},"PeriodicalIF":5.3,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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