Article
Chemistry, Multidisciplinary
Samuel J. Francis, Marco D. Torelli, Nicholas A. Nunn, Gowthami M. Arepally, Olga A. Shenderova
Summary: Thrombosis is a major health issue in the United States and there is a lack of understanding about its causes, progression, and response to anticoagulant therapy. This study demonstrates the use of fluorescent nanodiamond (FND) as a label for blood clots, which offers advantages over organic fluorophores, such as reduced photodegradation. The addition of tissue plasminogen activator (tPa) allows visualization of clot lysis, which is important for studying the resolution of deep vein thrombosis and pulmonary embolism.
Article
Materials Science, Multidisciplinary
Paulina Czarnecka, Mona Jani, Saravanan Sengottuvel, Mariusz Mrozek, Pawel Dabczynski, Adam Filipkowski, Ireneusz Kujawa, Dariusz Pysz, Wojciech Gawlik, Adam M. Wojciechowski
Summary: By assembling fluorescent nanodiamonds on a glass surface, magnetically-sensitive nanodiamond-fiber probes were prepared for endoscopy and successfully detected optically detectable magnetic resonance signals. This study provides promising results for early stage detection in bio-diagnostic applications.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Materials Science, Multidisciplinary
Xuelin Wu, Jiaying Qu, Laizaiti Asibaike, Yuyang Sun, Didi Chen, Jean Felix Mukerabigwi, Xueying Huang, Yu Cao
Summary: NADs have been widely used in biomedical applications due to their small particle size, high specific surface area, functional capability, and long-term stable fluorescence. However, the metabolism of NAD and its derivatives remains unclear for various biomedical applications. In this study, a modified ND, ND-EDA-calcein, was evaluated for cytotoxicity and biodistribution. The results showed minimal cytotoxicity and accumulation of ND-EDA-calcein in the liver and kidney of mice after intraperitoneal injection. Interestingly, ND-EDA-calcein was completely metabolized by the mice after 5 days. These findings suggest that NDs have potential for nanomedicine applications including drug delivery and biomarkers.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Environmental Sciences
Irina V. Abmetko, Maria G. Chernysheva, Natalia A. Kulikova, Andrey I. Konstantinov, Andrey G. Popov, Gennadii A. Badun, Irina V. Perminova
Summary: The study utilized tritium-labeled humic substances to investigate the surface properties of nanodiamonds and their interaction with natural organic matter, revealing that the adsorption of humic substances onto nanodiamonds led to fractionation of humic substances dependent on the zeta potential of the nanodiamonds. However, this adsorption did not significantly impact the uptake of nanodiamonds by wheat seedlings. The uptake of nanodiamond particles by plants was determined by the functional composition of the particle surface.
ENVIRONMENTAL RESEARCH
(2021)
Article
Pharmacology & Pharmacy
Nafisah Al-Rifai, Anas Alshishani, Fouad Darras, Ola Taha, Shereen Abu-Jalloud, Lena Shaghlil, Yousef Al-Ebini
Summary: Impurity identification and profiling is crucial for drug quality control, especially for newly developed medications like solriamfetol. In this study, we identified, synthesized, and isolated eight process-related solriamfetol impurities, characterized them using spectroscopic and chromatographic techniques, and proposed their formation mechanisms. Additionally, we developed a rapid impurity analysis method based on ultrahigh-performance liquid chromatography with UV detection, which meets the method validation criteria set by the International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use. This method is suitable for routine analysis of solriamfetol substances.
JOURNAL OF PHARMACEUTICAL ANALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Laszlo Himics, David Gal, Peter Csikvari, Roman Holomb, Margit Koos, Attila Sulyok, Bela Pecz, Miklos Veres
Summary: In this work, a simple and easy method to improve the color center formation efficiency in nanocrystalline diamond structures during solid impurity source assisted microwave plasma enhanced chemical vapor deposition (MWCVD) is reported. By vertically aligning the solid impurity source in the CVD plasma, diamond thin films with significantly higher color center related fluorescence signal can be obtained. The proposed method can enhance the emission peak intensity of fluorescent nanodiamond structures by 7-10 times without altering the crystal quality.
Article
Chemistry, Multidisciplinary
Hye Hyeon Han, Homan Kang, Seong-Jong Kim, Rahul Pal, Anand T. N. Kumar, Hak Soo Choi, Sei Kwang Hahn
Summary: Despite extensive research on molecular imaging contrast agents, there are still unmet medical needs for enhancing their signal-to-background ratio, brightness, photostability, and biocompatibility. This study assessed the feasibility of using fluorescent nanodiamonds (FNDs) as carbon-based photostable and biocompatible materials for molecular imaging applications. The results demonstrated the promising potential of HA-FND conjugates for targeted molecular imaging, especially in liver-targeted imaging.
Article
Chemistry, Multidisciplinary
Hui Wang, Qi Zhao, Kuikui Zhang, Futao Wang, Jinfang Zhi, Chong-Xin Shan
Summary: This study presents a facile strategy to produce robust and efficient absorbent materials for oil/water separation in large-scale cleanups.
Article
Materials Science, Multidisciplinary
Sachin Patil, Vishnu S. Mishra, Puli Chandramouli Reddy, Bimlesh Lochab
Summary: Researchers have developed a nanoformulation using nanodiamonds and iron oxide, which effectively delivers artesunate (ART) to cancer cells, increasing its anticancer properties. This nanoformulation enhances the production of reactive oxygen species (ROS), leading to DNA damage and cellular apoptosis.
ACS MATERIALS LETTERS
(2023)
Article
Polymer Science
Elena Palmieri, Cristina Cicero, Noemi Orazi, Fulvio Mercuri, Ugo Zammit, Claudia Mazzuca, Silvia Orlanducci
Summary: This work explores the application of nanodiamond composites and dispersions as consolidating agents for parchment substrates, showing promising results and making nanodiamond a potential high-performance additive in restoration. The effects of nanodiamond treatment on parchment were evaluated through light transmission analysis and infrared spectroscopy. The results suggest that nanodiamond composites at certain concentrations can improve the structural stability of collagen networking and resist thermo-hygrometric aging.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ruoxuan Huang, Shinan Han, Tianchi Zhang, Zichun Wang, Grinkevych Kostyantyn, Xiangnan Chen, Jiujun Xu
Summary: Polyaniline-coated nanodiamond composites were prepared and used as nanolubricant additives. The results show that the developed additive can effectively improve the friction and wear performance, especially under high temperature and oil-starved lubrication conditions.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Physics, Multidisciplinary
Yu Zhang, Fei Gao, Shiwu Gao, Mads Brandbyge, Lin He
Summary: This study successfully visualizes and controls the intervalley scattering induced by an individual monovacancy in graphene using a scanning tunneling microscope. The research finds that the affected range of intervalley scattering is inversely proportional to the energy and observes a giant electron-hole asymmetry. By further charging the monovacancy, the scattering potential is softened and the intervalley scattering is suppressed.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
David M. Parker, Alex J. Lineweaver, Arthur D. Quast, Ilya Zharov, Jennifer S. Shumaker-Parry
Summary: Surface-functionalized nanodiamond with thiol-termination has been successfully developed through treatment with elemental sulfur at high temperature, demonstrating the utility of thiols for conjugation of molecules to the diamond surface. Thiol-terminated diamond as a support for gold nanoparticles showed excellent stability and catalytic performance, highlighting the potential applications of such materials in nanotechnology and nanomedicine.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Physical
Dudari B. Burueva, Sergey Sviyazov, Fei Huang, Igor P. Prosvirin, Andrey Bukhtiyarov, Valerii Bukhtiyarov, Hongyang Liu, Igor Koptyug
Summary: The catalytic behavior of Pd catalysts supported on ND@G with different metal distributions was studied in propyne hydrogenation with parahydrogen. The results showed that the monoatomic distribution of Pd in Pd-1/ND@G led to outstanding selectivity to propene and significantly larger enhancements in the PHIP effect compared to Pd-n/ND@G, indicating the importance of metal distribution in catalyst performance and efficiency in PHIP effects.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Analytical
Yanqing Chen, Huiliang Li, Hang Hong, Hongwen Tao, Xianglin Peng, Guangyu Xu
Summary: Empagliflozin is an effective SGLT2 inhibitor for improving glycemic control in adults with type 2 diabetes. During its manufacturing process, three unknown impurities were discovered in pilot batches, and their structures were elucidated through comprehensive analysis. Mechanistic pathways to the formation of these impurities were also discussed.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2021)
Article
Green & Sustainable Science & Technology
A. D. Kotelnikova, O. B. Rogova, E. A. Karpukhina, A. B. Solopov, I. S. Levin, V. V. Levkina, M. A. Proskurnin, D. S. Volkov
Summary: Coal combustion byproducts, such as fly ash, bottom ash, and ash and slag waste, have potential for application as soil ameliorants. This research investigated the possibility of using fly ash and bottom ash as soil ameliorants and assessed their impact on soil quality indicators. The findings suggest that these waste materials can help normalize soil acidity and contribute to agrophysically valuable aggregates. Moreover, the concentration of potentially toxic elements in the ash and slag waste samples did not exceed legislatively established standards, indicating their safety for use.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Anna Kotelnikova, Olga Rogova, Dmitry S. Volkov
Summary: This study assessed the potential toxicity of soil samples with a high organic matter content (chernozem) spiked with the lanthanides La, Ce, and Nd. The Allium test was used to evaluate the toxicity, and the results showed that the influence on onion root length varied depending on the concentrations added to the chernozem samples. The MI decreased significantly in the experimental groups with 20 mg/kg and 100 mg/kg La, while the FAC increased significantly in the experimental groups with 100 mg/kg and 200 mg/kg Ce.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Chemistry, Multidisciplinary
Petr K. Krivoshein, Dmitry S. Volkov, Olga B. Rogova, Mikhail A. Proskurnin
Summary: This study used FTIR-photoacoustic spectroscopy (FTIR-PAS) supported by attenuated-total reflection FTIR spectroscopy (ATR-FTIR) to fractionate soils into different aggregate fractions (10-5000 μm) and compare their properties. The results showed differences in the composition of chernozem and sod-podzolic soils and different agricultural-use chernozem samples, with the range of 10-100 μm providing the most information. Changes were observed in the soil organic matter range (1900-1340 cm(-1)) and the soil-matrix region (550-300 cm(-1)). The fractionation showed more differences in the sod-podzolic and chernozem soil fractions than the whole soil spectra, with FTIR-PAS being more sensitive in the 4000-2000 cm(-1) region and ATR-FTIR being more sensitive in the 2000-100 cm(-1) region.
Review
Chemistry, Analytical
Polina S. Fomina, Mikhail A. Proskurnin, Boris Mizaikoff, Dmitry S. Volkov
Summary: This review discusses the analytical capabilities of Fourier-transform infrared spectroscopic techniques for analyzing aqueous solutions and provides examples.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2023)
Review
Physics, Multidisciplinary
M. A. Proskurnin, V. R. Khabibullin, L. O. Usoltseva, E. A. Vyrko, I. Mikheev, D. S. Volkov
Summary: This article reviews the main issues and areas of application of photo-thermal and optoacoustic spectroscopy. It presents progress in innovative techniques in the most actively developing areas, including microspectroscopy, multispectral techniques, and nanoscopy. The possible applications of these spectroscopy methods in determining material properties, studying photochemistry and fluorescence, chemical reactions, and biomedical problems are also discussed. Prospects for the development of these methods are presented.
Review
Physics, Applied
Polina S. Fomina, Mikhail A. Proskurnin
Summary: This review explores the main techniques of photothermal radiometry and its applications in chemical research and related fields, focusing on combining molecular spectroscopy and thermal characterization in physical, analytical chemistry, materials science, and biomedical research. It also discusses various applications of these techniques in material science and applied chemical research.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
A. V. Kaplin, A. T. Rebrikova, E. A. Eremina, N. A. Chumakova, N. V. Avramenko, M. V. Korobov
Summary: A comparative study of the sorption properties of acetonitrile, water, pyridine, and 1-octanol into powders and membranes of modified Hummers (HGO) and Brodie (BGO) graphite oxides was conducted. The synthetic procedure, method of making membranes, chemical nature of the sorbent, and sorption method were systematically examined. It was found that variations in synthetic procedures did not affect the sorption properties of the powders. The sorption of acetonitrile and pyridine was reduced by half when switching from powders to membranes, while water showed unique sorption properties with equal sorption for membranes and powders at different temperatures.
Article
Agronomy
Evgeniya A. Karpukhina, Dmitry S. Volkov, Mikhail A. Proskurnin
Summary: The existing techniques for lignosulfonate in humate fertilizers lack selectivity and require labor- and time-consuming sample preparation. This study developed a procedure based on ATR FTIR spectroscopy with simple sample preparation for directly quantifying lignosulfonates in aqueous solutions. The technique shows potential for analyzing fertilizers of simple composition and quality control of pure humates used for plant growth.
Article
Environmental Sciences
Nikita A. Sobolev, Konstantin S. Larionov, Darya S. Mryasova, Anna N. Khreptugova, Alexander B. Volikov, Andrey I. Konstantinov, Dmitry S. Volkov, Irina V. Perminova
Summary: Pollution of the Arctic Ocean by potentially toxic elements (PTEs) is a current environmental problem. Humic acids (HAs) play an important role in the regulation of PTE mobility in soil and water. The thawing of permafrost could increase the mobility of PTEs in the Arctic Ocean due to the release of organic matter with a specific molecular composition. The adsorption experiments have shown that peat and alas HAs have a higher affinity for binding both Cu2+ and Ni2+ ions compared to Yedoma HAs.
Article
Chemistry, Inorganic & Nuclear
Ivan V. Mikheev, Viktor A. Verkhovskii, Sofiya M. Byvsheva, Dmitry S. Volkov, Mikhail A. Proskurnin, Vladimir K. Ivanov
Summary: Excitation-emission matrix (EEM) fluorescence spectroscopy was used to quantify unmodified fullerenes C-60 and C-70 in different solvents at room temperature. The fluorescence intensity and parameters depend on the fullerene and solvent, allowing for quantification of mixtures without separation. The method was successfully applied to model and real mixtures of C-60 and C-70, with detection limits of 7 nmol/L and 2 nmol/L, respectively.
Article
Chemistry, Physical
N. A. Chumakova, D. S. Popov, A. V. Kaplin, A. T. Rebrikova, E. A. Eremina, M. V. Korobov, O. N. Khrykina
Summary: The reversible phase transformation of intercalation or release of liquid from the interplanar space with changes in interplanar distances has been observed in once, twice, and thrice-oxidized Brodie graphite oxide materials. The study used the EPR spin probe technique, DSC, and temperature programmed XRD to investigate the phenomenon. It was found that all the materials formed similar low temperature (LT) and high temperature (HT) swollen structures with acetonitrile, and the phase transformation occurred in a similar temperature range for materials with different oxidation levels. The spin probe technique proved to be sensitive in detecting small amounts of new swollen structures, making it useful in phase transformation studies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Shuanghui Zeng, Xue Wang, Yunqian Zhang, Jiaojing Shao, Zhao Ding, Jie Zhao
Summary: A free-standing 3D core/shell composite material CNTs@Co9S8 on nickel mesh has been prepared using a simple two-step method. The composite material exhibits excellent conductivity and charge storage capability, making it a promising candidate for supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Marieta Belcheva, Georgi Georgiev, Boyko Tsyntsarski, Urszula Szeluga, Lyudmila Kabaivanova
Summary: This study successfully prepared new antibacterial materials by combining activated carbon with metal nanoparticles, taking advantage of the well-known antibacterial activity of metal nanoparticles. The obtained composites exhibited strong antibacterial effects against E. coli and S. aureus, with the antibacterial activity depending on the contact time, bacterial species, nature of the metal, and metal concentration. The findings provide novel materials with antibacterial properties for further development and potential application in hygiene devices.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
V. P. Madhurima, Kusum Kumari, P. K. Jain
Summary: In this study, carbon nanomaterials were synthesized using the arc discharge technique, with a focus on optimizing process parameters to improve yield and quality. The materials were characterized using various analytical tools, and their dye adsorption capabilities were evaluated. The results showed that carbon soot had better adsorption performance compared to carbon nanotubes, indicating the potential of these carbon nanomaterials for environmental remediation applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaolong Sun, Bo Cui, Pingping Liang, Qimeng Liu, Nan Gao, Hongdong Li
Summary: This study explores the potential of hafnium (Hf) terminated diamond surfaces in achieving negative electron affinity (NEA). By using swarm-intelligence structural search and first-principles calculations, the researchers found that Hf-terminated diamond surfaces exhibit stable NEA properties and high thermal stability, making them promising candidate materials for electron emission applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
N. Soltani, N. Tavakkoli, E. Eslami, L. S. Mirmohammadi
Summary: In this project, a carbon paste electrode modified with graphene and ZnFe2O4 spinel nanoparticles (Gr/ZnFe2O4/CPE) was used to measure naproxen, and various electrochemical methods were used to investigate its behavior. By optimizing the parameters, good measurement results were obtained.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xiwei Cui, Yue Qin, Xin Han, Huanyi Chen, Xinxin Ruan, Hui Zhang, Chengcheng Jiao, Rongqi Mao, Jinglin Hao, Sizhuang Zhao, Shuai Hou, Xiaoxuan Pian, Yandong Wang, Kazuhito Nishimura, Lifen Deng, Nan Jiang
Summary: This paper investigates the friction and wear behaviors of two types of polycrystalline diamonds against different materials. The results show that increasing surface roughness leads to an increase in coefficient of friction. The coefficient of friction and wear rate of ceramic Si3N4 balls are generally lower than those of steel GCr15 balls, except for one type of polycrystalline diamond. Transfer films of SiO2 and its hydrate are observed at the friction interface, which contribute to smoother friction and wear. Carbon-based transfer films are also identified, mainly catalyzed by residual cobalt in the polycrystalline diamonds, leading to a phase transformation.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Menglei Sun, Pengjun Li, Mao Wang, Yidan Liang, Xudong Yang, Shujie Pang
Summary: In this study, carbonized polymer dots were synthesized by a one-step hydrothermal method, and silver nanoclusters were synthesized by UV lamp irradiation. They were then self-assembled by electrostatic force to prepare a dual-emission fluorescent nanocomposite that responds to temperature changes. The nanocomposite showed two emission peaks and exhibited excellent linearity between 20°C and 80°C.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Mohamed J. Saadh, Durgesh Singh, Diego Mayorga, Anjan Kumar, Maria Albuja, Ahmad Ismael Saber, Mohammed Ahmed Mustafa, Yasser Elmasry, Noubu Sun
Summary: Based on density functional theory, it is found that the C3N monolayer has good adsorption capability for Hg0 and a short recovery time. This study suggests that the C3N monolayer is a promising adsorbent material for efficient control of gaseous mercury.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Rajendra Kumar Nare, Sivalingam Ramesh, Vijay Kakani, Yuvaraj Haldorai, Chandrasekaran Karthikeyan, Basivi Praveen Kumar, Nadavala Siva Kumar, Mohammad Asif, S. Naresh Kumar, D. Prakash Babu, K. Ramakrishna Reddy, Visweswara Rao Pasupuleti
Summary: This study examines the latest advancements in carbon nanotube (CNT) supercapacitors and related composites, aiming to identify strategies for enhancing their performance. The researchers used ultrasonication aided hydrothermal technique to synthesize a composite made of nitrogen doped carbon nanotubes and porous NiCo2O4 nanomaterial. The composite electrode exhibited excellent cycling stability and a rising specific capacitance, making it appealing for high-performance supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
D. Mary Deena, S. Arockia Anushya, A. Dhanusha, T. C. Sabari Girisun, A. Philominal
Summary: A single-beam Z-Scan experiment was conducted to investigate the nonlinear optical absorption and optical limiting properties of Bi2O3, rGO/Bi2O3, Bi2O3/WO3, and rGO/Bi2O3/WO3 nanostructures. The results showed that the synthesized nanostructures exhibited varying levels of nonlinear absorption, with bismuth-based nanostructures showing the lowest optical limiting threshold and a higher two-photon absorption coefficient. The presence of rGO contributed to the extended conjugation for charge transfer, while the strong UV-Visible absorption of Bi2O3 and WO3 led to a unique nonlinear optical response.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Weibing Guo, Yiren Hu, Tao Wang, Xiaoguang Chen
Summary: This study investigated the microstructure and forming mechanism of graphite/copper joints that were brazed using Ti-containing filler. The results showed that increasing the brazing temperature improved the heat transfer and tensile properties of the composites. Additionally, the composites exhibited high heat flux and faster heating rate compared to copper and aluminum.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ming Li, ZhiWen Wang, Yu Teng, Hongyu Zhao, Bowei Li, Yang Liu, Shengxue Wang, Zhenze Yang, Liangchao Chen, Hongan Ma, Xiaopeng Jia
Summary: In the experiment, different Ni-content catalysts were used to synthesize diamond crystals, and the properties of the synthesized diamonds were analyzed. The results revealed that the Ni content in the catalyst affects the crystallinity of diamond crystals and the nitrogen crystallinity. The photoluminescence spectroscopy also showed that the diamond synthesized by using Fe-containing catalyst has specific NV-color center structure.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ling-Feng Mao
Summary: This study proposes an LSTM model to predict the work function of adsorbed metal atoms on graphene, which can quickly screen surface structures with target work function, saving computing and time costs, and improving device performance.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Runzhou Xu, Yinshui Liu, Qian Cheng, Zhenyao Wang, Kai Ma, Peiling Ke, Yipan Deng
Summary: The wear resistance of 17-4PH stainless steel was significantly improved by depositing multi-layered Cr/CrC/DLC coating at wide temperature range. The coating exhibited excellent lubrication and protective properties, and the wear mechanism changed with increasing temperature. The tribochemical reaction during the wear process played a crucial role in the graphitization transformation and friction properties of the coating.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xilong Guo, Jiaxin Song, Shanling Wang, Li Lei, Omololu Odunmbaku, Ayoub Taallah, Yi He, Aiqun Gu, Filippo S. Boi
Summary: The recent observations of superconductive-ordering in carbon-based systems consisting of rhombohedral stacking-faults, trilayer graphene (ABC-stacks) or dislocation-rich interfaces (pyrolytic graphite) have attracted significant attention. In this study, an unusual nucleation of rhombohedral stacking-faults in low-dimensional systems comprising of multiwall carbon nanotube (CNT) buckypapers was reported. The presence of sulfur doping resulted in a broad-band at the Raman shift from 1800 to 2000 cm(-1), indicating contributions arising from disorder-rich regions with rhombohedral stacking-order (ABC-stacks). These observations were further supported by X-ray diffraction and Rietveld refinements.
DIAMOND AND RELATED MATERIALS
(2024)
