Diamond and Related Materials最新文献_第5页

Ultrahigh carrier mobility in an amorphous-carbon-adsorbed diamond conductive channel 非晶碳吸附金刚石导电通道中的超高载流子迁移率

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-02-07 DOI: 10.1016/j.diamond.2026.113418

Shangman Zhao , Sheng Ye , Zichen Zhao , Jinlong Liu , Liangxian Chen , Junjun Wei , Chengming Li , Xiaoping Ouyang

{"title":"Ultrahigh carrier mobility in an amorphous-carbon-adsorbed diamond conductive channel","authors":"Shangman Zhao , Sheng Ye , Zichen Zhao , Jinlong Liu , Liangxian Chen , Junjun Wei , Chengming Li , Xiaoping Ouyang","doi":"10.1016/j.diamond.2026.113418","DOIUrl":"10.1016/j.diamond.2026.113418","url":null,"abstract":"<div><div>Hydrogen-terminated diamond (H-diamond) has emerged as a promising dopant-free p-type semiconductor owing to its distinctive surface conductivity. However, the development of H-diamond-based electronic devices remain constrained by their limited carrier mobility and poor environmental stability. In this work, we developed an innovative approach through conformal deposition of an amorphous carbon (a-C) layer on H-diamond surfaces via microwave plasma chemical vapor deposition. This engineered interface establishes a highly conductive channel exhibiting an unprecedented hole mobility exceeding 1470 cm<sup>2</sup>V<sup>−1</sup> s<sup>−1</sup>, while maintaining optimal carrier density (∼10<sup>12</sup> cm<sup>−2</sup>) and remarkably low sheet resistance (2300 Ω/□). The modified surface demonstrates exceptional environmental stability, retaining its electrical properties for over two months under ambient conditions while maintaining excellent conductivity at elevated temperatures up to 575 K. Comprehensive characterization through photoluminescence spectroscopy, ultraviolet photoelectron spectroscopy, and comparative vacuum/ambient Hall measurements reveals a charge transfer doping mechanism predominantly mediated by the adsorbed a-C layer, with secondary contributions from ambient molecular species. This breakthrough provides critical insights for designing stable, high-performance H-diamond-based electronic systems for advanced applications in extreme environments.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113418"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185259","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

High-performance NiCr alloy metal bonded wheels for mechanochemical grinding of polycrystalline diamond wafers: Fabrication and application 聚晶金刚石机械化学磨削用高性能NiCr合金金属结合剂砂轮：制造与应用

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-02-02 DOI: 10.1016/j.diamond.2026.113401

Zesen Li , Jing Lu , Shaofeng Huang , Dongxu Li , Qiufa Luo , Congming Ke , Xipeng Xu

引用次数: 0

Enhanced thermal performances of high-power LED by diamond packaging 金刚石封装提高大功率LED的热性能

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI: 10.1016/j.diamond.2026.113352

Sicheng Tan , Bin He , Xinqing Gao, Jiangtao Huang, Yuanmao Lai, Wang Zhang, Xiaorui Liu, Stephan Handschuh-Wang, Peigang Han

引用次数: 0

Synthesis of p-n junction via titanate nanobelts grown on graphite/carbon nanotubes for augmented organic pollutant degradation 石墨/碳纳米管上钛酸盐纳米带合成p-n结以增强有机污染物降解

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-02-01 DOI: 10.1016/j.diamond.2026.113366

Sabrine Zghal , Ilyes Jedidi , Mohamed Salah Mahmoud , Marc Cretin , Sophie Cerneaux , Makki Abdelmouleh

{"title":"Synthesis of p-n junction via titanate nanobelts grown on graphite/carbon nanotubes for augmented organic pollutant degradation","authors":"Sabrine Zghal , Ilyes Jedidi , Mohamed Salah Mahmoud , Marc Cretin , Sophie Cerneaux , Makki Abdelmouleh","doi":"10.1016/j.diamond.2026.113366","DOIUrl":"10.1016/j.diamond.2026.113366","url":null,"abstract":"<div><div>In this work, titanate nanobelts (TNBs) were successfully grown via hydrothermal synthesis onto the surface of as-prepared carbon graphite/carbon nanotubes composite material. Titanium (IV) butoxide was used as precursor for the synthesis of TNBs, following a basic hydrolysis-condensation sol-gel reaction. Morphological characterization of the nanocomposites by SEM indicated the achieved good growth of TNBs onto the surface of carbon nanotubes (CNTs) and graphite supports. The specific surface area, determined by BET, increased significantly from pure graphite carbon KS44 (6.23 m<sup>2</sup>/g) to carbon support KS44/CNT/TNB enriched with TNBs and CNTs (161.67 m<sup>2</sup>/g). On the other hand, the visible light absorption spectrum increased with TNB-based composites. A remarkable enhancement in absorption in the visible region achieved a 1000% enhancement for KS44/CNT/TNB relative to KS44 alone, which explains the improvement of its photocatalytic degradation capacity of AO7. The results obtained by UV–visible and XPS show that the simultaneous presence of TNBs and CNTs on graphite-based composites (KS44/CNT/TNB) gives the material the necessary properties to be used as an adsorbent and catalyst in wastewater treatment, and in particular for the removal and degradation of azo dyes in aqueous solution.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113366"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185369","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

Efficient machining method for multi-sheet single-crystal diamond based on self-rotation grinding motion trajectory 基于自旋磨削运动轨迹的多片单晶金刚石高效加工方法

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-01-30 DOI: 10.1016/j.diamond.2026.113384

Yongkang Xin , Jing Lu , Yikun Hu , Shaofeng Huang , Qiufa Luo , Congming Ke , Xipeng Xu

{"title":"Efficient machining method for multi-sheet single-crystal diamond based on self-rotation grinding motion trajectory","authors":"Yongkang Xin , Jing Lu , Yikun Hu , Shaofeng Huang , Qiufa Luo , Congming Ke , Xipeng Xu","doi":"10.1016/j.diamond.2026.113384","DOIUrl":"10.1016/j.diamond.2026.113384","url":null,"abstract":"<div><div>Diamond has emerged as an ideal substrate material for next-generation high-power semiconductor devices due to its exceptional electronic properties. While self-rotating grinding technology demonstrates high-efficiency material removal, its application is hindered by trajectory aggregation effects, which degrade surface accuracy. This study addresses this bottleneck by establishing a grinding trajectory density distribution model to systematically analyze the influence of workpiece placement (position, angle) and substrate size on trajectory uniformity. Combined with experimental investigations into diamond anisotropic removal characteristics, multi-parameter optimization enabled synchronous processing of five (100) orientation diamond substrates. The results indicate an average material removal rate of 1.75 μm/h, with a surface roughness of Sa < 0.5 nm and a surface flatness of PV < 8 nm. This achievement successfully meets the dual objectives of high quality and high efficiency.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113384"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185438","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 fabrication of hard carbon from longan seeds: Role of thermal treatment in tuning sodium-ion storage behavior 龙眼种子可持续制备硬碳：热处理在调节钠离子储存行为中的作用

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-01-28 DOI: 10.1016/j.diamond.2026.113377

Dongsheng Li , Jiajia Li , Chun Li , Yuju Zhao , Chao Ma , Yanting Hu , Xu Feng , Junqiang Niu , Shanshan Yao

{"title":"Sustainable fabrication of hard carbon from longan seeds: Role of thermal treatment in tuning sodium-ion storage behavior","authors":"Dongsheng Li , Jiajia Li , Chun Li , Yuju Zhao , Chao Ma , Yanting Hu , Xu Feng , Junqiang Niu , Shanshan Yao","doi":"10.1016/j.diamond.2026.113377","DOIUrl":"10.1016/j.diamond.2026.113377","url":null,"abstract":"<div><div>Owing to the elemental abundance and cost-effectiveness of sodium, sodium-ion batteries (SIBs) have emerged as an attractive candidate for large-scale energy storage systems. However, the fabrication of high-performance anode materials remains a critical challenge. Among various options, biomass-derived hard carbon has gained significant research interest due to its environmental friendliness, renewability, and tunable microstructure. Herein, the present research focuses on longan seeds-derived hard carbon (LSHC), specifically studying the correlation between its pyrolysis temperature and the microstructure and electrochemical performance. The data indicate that elevating the thermal treatment temperature led to a higher degree of graphitization (structural order) in HC, accompanied by a decline in surface defects and a growth in closed pore volume. A lower defect density led to the suppression of the solid electrolyte interphase (SEI) film formation, while a greater volume of closed pores was responsible for improving the capacity in the plateau region. Moreover, the correlation between pore structure regulation, ion transport dynamics, and electrochemical properties was systematically studied. Longan seeds-derived HC prepared at 1300 °C exhibits a remarkable reversible specific capacity of 287.4 mAh g<sup>−1</sup>, and demonstrates outstanding cycling stability with 82.1% capacity retention (236 mAh g<sup>−1</sup>) after 500 cycles at 2C. Even at a higher current density, the HC exhibits specific discharge capacity of 208 mAh g<sup>−1</sup> at 4C. This work supports regulating the microstructure for biomass-derived hard carbon for tuning sodium ion storage behaviors, which contributes to the sustainable development of biomass resources.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113377"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185439","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

The novel current collectors of cathode and anode using the ultrathin, flexible and light-weight graphene papers in lithium-ion batteries 采用超薄、柔韧、轻质的石墨烯纸作为锂离子电池阴极和阳极的新型集流器

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-02-09 DOI: 10.1016/j.diamond.2026.113419

Xinxin Shan , Shuangyi Liu , Qizhen Xiao , Wenhao Xie , Yan Zhuang , Mingyun Guan

引用次数: 0

Natural graphite from multiple regions as anode materials for Li-ion batteries: Structural optimization and performance evaluation 多产地天然石墨作为锂离子电池负极材料：结构优化与性能评价

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-02-10 DOI: 10.1016/j.diamond.2026.113396

Yu-Jin Kim , Jong Beom Lee , Hyeonseok Yi , Young Durk Park , Geon-Hee Kim , Young-Pyo Jeon , Kyeongseok Oh , Joo-Il Park

{"title":"Natural graphite from multiple regions as anode materials for Li-ion batteries: Structural optimization and performance evaluation","authors":"Yu-Jin Kim , Jong Beom Lee , Hyeonseok Yi , Young Durk Park , Geon-Hee Kim , Young-Pyo Jeon , Kyeongseok Oh , Joo-Il Park","doi":"10.1016/j.diamond.2026.113396","DOIUrl":"10.1016/j.diamond.2026.113396","url":null,"abstract":"<div><div>In response to the rapidly increasing demand for natural graphite (NG), this study aimed to explore and diversify new sources of raw materials by processing and purifying NG mined from Southeast Asia and Africa. The physical, chemical, and electrochemical properties of the materials were evaluated to assess their feasibility as anode materials for lithium-ion batteries (LIBs). Through pulverization and spheronization processes, the particle morphology and crystal structure were analyzed. Under the condition of a median particle size (D<sub>50</sub>) of 11.0 μm, Vietnamese NG exhibited the highest stacking height (<span><math><msub><mi>L</mi><mi>c</mi></msub></math></span>) of 59.4 nm. In addition, electrochemical tests revealed an initial coulombic efficiency of approximately 90% and a discharge capacity of 365.4 mAh/g. Qingbei NG showed an <span><math><msub><mi>L</mi><mi>c</mi></msub></math></span> of 43.4 nm with a discharge capacity of 359.8 mAh/g. These results suggest that crystal structural parameters such as stacking height play a critical role in the lithium-ion intercalation and deintercalation processes, significantly influencing electrochemical performance. Accordingly, this study confirmed the potential for developing NG-based anode materials using regionally diverse sources and highlighted the importance of designing region-specific process optimization strategies in future research.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113396"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185640","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

High-performance solar photocatalysis enabled by recyclable electrospun Ag₃PO₄/g-C₃N₄ nanofibrous composites 可回收电纺Ag₃PO₄/g-C₃N₄纳米纤维复合材料实现高性能太阳能光催化

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-02-11 DOI: 10.1016/j.diamond.2026.113436

Khulaif Alshammari , May A. Al-Sharari , Tahani D. Al-Sharari , Majed Alshammari , Sultan Alhassan , Satam Alotibi , M.R. El-Aassar , Hassan M.A. Hassan

{"title":"High-performance solar photocatalysis enabled by recyclable electrospun Ag₃PO₄/g-C₃N₄ nanofibrous composites","authors":"Khulaif Alshammari , May A. Al-Sharari , Tahani D. Al-Sharari , Majed Alshammari , Sultan Alhassan , Satam Alotibi , M.R. El-Aassar , Hassan M.A. Hassan","doi":"10.1016/j.diamond.2026.113436","DOIUrl":"10.1016/j.diamond.2026.113436","url":null,"abstract":"<div><div>This study reports a novel floating, solar-light-responsive PAN/Ag₃PO₄–gCN nanofiber photocatalyst fabricated via electrospinning, designed to overcome the critical limitations of gCN aggregation, poor recyclability, and inefficient light utilization in aqueous systems. The key novelty lies in integrating an Ag₃PO₄–gCN heterojunction into a hydrophobic PAN nanofiber matrix, producing a low-density, floatable photocatalyst that maximizes solar exposure while minimizing light-shielding effects. Structural and surface characterizations (XRD, FTIR, XPS, SEM, TGA, BET, and UV–Vis) confirmed the successful formation of a well-dispersed heterostructure with strong interfacial interactions and boosted visible-light absorption. Photocatalytic evaluation using methylene blue under solar irradiation demonstrated rapid adsorption and efficient degradation, achieving 94% removal within 60 min under optimized conditions. Kinetic assessment revealed pseudo-first-order behavior with a high apparent rate constant of 0.04189 min<sup>−1</sup> for PAN/(0.02)Ag₃PO₄–gCN, attributed to improved charge separation and the development of reactive oxygen species. Importantly, the nanofibers retained 93% degradation efficiency after six cycles, confirming excellent durability and reusability. This work presents a scalable, sustainable approach to tailor immobilized, reusable photocatalysts for wastewater remediation.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113436"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421649","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

Boron-doped g-C₃N₄ catalysts for solar-driven Hydrogen production: Experimental and DFT insights 用于太阳能制氢的硼掺杂g-C₃N₄催化剂：实验和DFT见解

IF 5.1 3区材料科学

Diamond and Related Materials Pub Date : 2026-03-01 Epub Date: 2026-01-26 DOI: 10.1016/j.diamond.2026.113371

Kanchan Pawar , Oshnik Maurya , Subhendu Mishra , Arpan Chakraborty , Niteen S. Jawale , Sudhir S. Arbuj , Abhishek K. Singh , Bhavesh Sinha , Archana Kalekar

{"title":"Boron-doped g-C₃N₄ catalysts for solar-driven Hydrogen production: Experimental and DFT insights","authors":"Kanchan Pawar , Oshnik Maurya , Subhendu Mishra , Arpan Chakraborty , Niteen S. Jawale , Sudhir S. Arbuj , Abhishek K. Singh , Bhavesh Sinha , Archana Kalekar","doi":"10.1016/j.diamond.2026.113371","DOIUrl":"10.1016/j.diamond.2026.113371","url":null,"abstract":"<div><div>Hydrogen is a key clean energy carrier for global sustainability, and solar-driven water-splitting technologies playing a crucial role in producing hydrogen efficiently and reducing dependence on fossil fuels. Graphitic carbon nitride (<strong>g-C₃N₄,</strong> GCN) catalyst is highly promising for photocatalytic applications due to its visible-light activity, cost-effectiveness, narrow bandgap, non-toxicity, stability, and ease of synthesis. This study focuses on the synthesis of GCN through thermal polymerization, and further explores the effect of boron doping (BCN) on the electronic, optical, and catalytic properties of the resulting material. Photoelectrocatalytic (PEC) measurements show improved photocurrent density, while photocatalytic (PC) measurements show evolution of 518 μmol H₂ per 0.1 g of BCN, which was 1.64 times higher than pristine GCN. Additionally, DFT was done to understand that low B doping concentration is optimum for H<sub>2</sub> evolution, while B substitution of N sites takes place in BCN. Thus, boron doping improves charge separation and enhances light absorption, required for improved PEC/PC performances. These findings, highlight that boron-doped GCN is a viable and cost-effective photocatalyst for solar-driven hydrogen production.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113371"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075436","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