Article
Chemistry, Analytical
Mariola Brycht, Slawomira Skrzypek, Valentin Mirceski
Summary: In this study, a simple and easy-to-use method was developed for monitoring the level of FH residues retained on the peel surface of blueberries samples. This method includes the treatment of the BDDE surface and can be used as a rapid screening method for food safety control.
ANALYTICA CHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Hemn A. H. Barzani, Hoshyar Saadi Ali, Yavuz Yardim
Summary: This study presents an electroanalytical examination of rifaximin (RFX) using the non-modified boron-doped diamond (BDD) electrode. Cyclic voltammetry (CV) and square-wave (SW) voltammetric techniques were utilized to evaluate RFX. The study showed a linear response in 0.1 M HNO3 solution and a low limit of detection of 0.14 μg mL-1. The developed method was successfully applied to pharmaceutical formulation samples for detecting RFX.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Magdalena Jakubczyk, Slawomir Michalkiewicz, Agata Skorupa, Kinga Krajcarz
Summary: This article investigates the electrochemical properties of methylisothiazolinone (MIT) and develops a new method for its determination. The method is conducted on a boron-doped diamond electrode and can detect the presence of MIT in household products without the need for separation steps.
Article
Chemistry, Analytical
Olha Dushna, Liliya Dubenska, Marian Marton, Michal Hatala, Marian Vojs
Summary: In this paper, a method for determining the alkaloid quinine (QN) was developed using a miniature planar electrochemical cell with a boron-doped diamond electrode (BDDE). QN can be oxidized in a strongly acidic environment and an alkaline environment, and it can be reduced within a wide pH range. The method was optimized to determine QN in soft drinks and urine.
MICROCHEMICAL JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Shabnam Allahverdiyeva, Pinar Talay Pinar, Yavuz Yardim, Zuhre Senturk
Summary: This study describes the electrochemical investigation and voltammetric determination of the HIV integrase inhibitor dolutegravir for the first time. Results showed that using cathodically pretreated boron-doped diamond electrode, a linear detection of dolutegravir can be achieved under suitable conditions.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Biophysics
Kanako Ishii, Genki Ogata, Yasuaki Einaga
Summary: In this study, an electrochemical method using boron-doped diamond electrodes was developed for the rapid and low-cost detection of triamterene in urine samples. The method showed good sensitivity and selectivity, with a low limit of detection. This method could be useful for screening athletes for the use of diuretics.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Renata Selesovska, Romana Sokolova, Kateroina Krejcova, Karolina Schwarzova-Peckova, Tomas Mikysek, Oleksandr Matvieiev
Summary: The first study on the electrochemical oxidation of triazole fungicide tebuconazole was conducted using an oxygen-terminated boron-doped diamond electrode. The research explored the irreversible anodic process occurring at +1.75 V (vs Ag/AgCl/KCl(sat.)) in 0.1 mol/L HNO3 through various techniques such as cyclic voltammetry, IR spectroelectrochemistry, and density functional theory calculations. The study provided insights into the oxidation mechanisms, revealing the formation of hydroxylated and dihydroxylated derivatives as well as an o-quinone derivative.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Electrochemistry
Olha Dushna, Liliya Dubenska, Marian Vojs, Marian Marton, Igor Patsay, Sophia Ivakh, Serhiy Plotycya
Summary: In this paper, a planar electrochemical cell with a novel screen-printed sensor and a boron-doped diamond electrode was used for the first time to determine the alkaloid atropine. By changing the diameter of the electrode, the linear concentration range was improved. Calibration curves were obtained using differential pulse voltammetry and square-wave voltammetry. The method can also be used for determination in drugs and biological fluids, and has the advantages of being rapid, inexpensive, and portable.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Medicinal
Iulia Rus, Alexandra Pusta, Mihaela Tertis, Cristina Barbalata, Ioan Tomuta, Robert Sandulescu, Cecilia Cristea
Summary: A simple, fast and direct electrochemical method using a boron-doped diamond electrode for gemcitabine detection was reported in this study. The influence of pH and supporting electrolytes were tested, with the optimized differential pulse voltammetry method having a linear range of 2.5-50 μg/mL and a detection limit of 0.85 μg/mL. An amperometric method was also optimized, with a linear range of 0.5-65 μg/mL and a detection limit of 0.15 μg/mL in phosphate-buffered saline of pH 7.4 and pH 5.5.
Article
Materials Science, Multidisciplinary
Hemn A. H. Barzani, Yavuz Yardim
Summary: An excellent electrochemical sensor using a non-modified boron-doped diamond electrode was developed for the determination of rifabutin. The oxidation of rifabutin showed irreversible behavior with diffusion-controlled and well-defined two oxidation peaks. The addition of cetyltrimethylammonium bromide greatly enhanced the anodic peak currents of rifabutin, especially under accumulation conditions. This method provided accurate quantification of rifabutin and was successfully used for evaluation in pharmaceutical formulation.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Pinar Talay Pinar, Yavuz Yardim, Zuhre Senturk
Summary: In this study, an anodically pretreated boron-doped diamond (BDD) electrode was used for the inexpensive, simple and quick detection of a natural dye, lawsone. The oxidation peak of lawsone was significantly increased in phosphate buffer solution using the cationic surfactant CTAB. The BDD electrode showed practical applicability for the quantification of lawsone in commercial henna.
ACTA CHIMICA SLOVENICA
(2021)
Article
Electrochemistry
Ahmet Cetinkaya, Burcu Dogan Topal, Esen Bellur Atici, Sibel A. Ozkan
Summary: Axitinib is a potent inhibitor with high selectivity, and voltammetric methods were developed for its quantification using glassy carbon and boron-doped diamond electrodes. The oxidation process of axitinib showed different control mechanisms on the two types of electrodes, and the calibration curves were obtained for quantification in pharmaceutical and biological samples.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Renata Selesovska, Karolina Schwarzova-Peckova, Romana Sokolova, Katerina Krejcova, Pavlina Martinkova-Keliskova
Summary: Triazole pesticides can be studied for electrochemical oxidation using diamond electrodes, providing a method for quantitation in aqueous solutions. The study showed similar results for DFC determination in model river water samples and pesticide preparations, with good recovery values for DFC only.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Renata Selesovska, Tomas Navratil, Vojtech Hrdlicka, Pavol Michniak, Michal Hatala, Marian Vojs, Marian Marton, Oleksandr Matvieiev, Lenka Janikova, Jaromira Chylkova
Summary: A novel lab-made disposable screen-printed sensor with chemically deposited boron-doped diamond was characterized and compared to other types of electrodes. It was successfully applied for the determination of atomoxetine and exhibited excellent detection performance and repeatability.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Hemn A. H. Barzani, Hoshyar Saadi Ali, Cihat Sahin, Musa Kiran, Yavuz Yardim
Summary: An effective electrochemical sensor using an unmodified boron-doped diamond electrode was developed for determining genistein by square-wave voltammetry. The cyclic voltammetry study showed irreversible behavior and well-defined oxidation peaks, with pH and supporting electrolytes influencing the oxidation process. The method allowed for quantification of genistein in a linear range of concentrations, with low detection limits. The developed method was successfully applied to detect genistein in model human urine samples.
Article
Chemistry, Analytical
Mariola Brycht, Karolina Kowalewska, Slawomira Skrzypek, Valentin Mirceski
Summary: This study presents an electrochemical investigation of the fungicide bixafen using a paste electrode based on thermally reduced graphene oxide (TRGOPE) synthesized in air. Cyclic voltammetry and square-wave voltammetry (SWV) were conducted to characterize the mechanism of the electrode process of bixafen and optimize the quantitative determination using SWV. The TRGOPE showed excellent electroanalytical performance with a limit of detection of 31.5 nmol L-1, and was effectively used to analyze bixafen in spiked river and tap water samples. Selectivity towards bixafen determination was also assessed.
Article
Chemistry, Analytical
Mariola Brycht, Slawomira Skrzypek, Valentin Mirceski
Summary: In this study, a simple and easy-to-use method was developed for monitoring the level of FH residues retained on the peel surface of blueberries samples. This method includes the treatment of the BDDE surface and can be used as a rapid screening method for food safety control.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Merve Yence, Ahmet Cetinkaya, Mehmet Emin Corman, Lokman Uzun, Mehmet Gokhan Caglayan, Sibel A. Ozkan
Summary: A sensitive and selective electrochemical sensor based on molecular imprinting polymer (MIP) was developed to detect Codeine (COD) in tablet form and biological fluid samples, obtained from hashish or prepared by methylation from morphine.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Waleed Alahmad, Ahmet Cetinkaya, S. Irem Kaya, Pakorn Varanusupakul, Sibel A. Ozkan
Summary: Studied the electrochemical behavior of ceftriaxone on a glassy carbon electrode and developed a sensor based on molecularly imprinted polymer for selective and sensitive detection of antibiotic drugs in food safety and environmental protection.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
S. Irem Kaya, Nurgul K. Bakirhan, M. Emin Corman, Lokman Uzun, Sibel A. Ozkan
Summary: In this study, a molecularly imprinted polymer (MIP) based electrode sensor was developed for the detection of the anticancer drug REG. The sensors were fabricated using photopolymerization and thermal polymerization methods, and various parameters were optimized to enhance their performance. The experimental results demonstrated that the sensors exhibited good selectivity and sensitivity towards REG, and also showed high recovery rates in serum samples.
Article
Chemistry, Analytical
Ece Ozkan, Goksu Ozcelikay, Elif Damla Gok Topak, Emirhan Nemutlu, Sibel A. Ozkan, Omer Dizdar, Sercan Aksoy, Sedef Kir
Summary: In this study, a molecularly imprinted polymer film (P (ANI)@MIP) was fabricated on the electrode surface using aniline as a functional monomer and octreotide as a template molecule. The P (ANI)@MIP film layer was evaluated and optimized to obtain the best electrochemical sensor for octreotide analysis. The developed P (ANI)@MIP/GCE sensor exhibited high sensitivity and selectivity for octreotide and was used to determine its concentration in cancer patient plasma samples.
Review
Chemistry, Analytical
Leyla Karadurmus, S. Irem Kaya, Ahmet Cetinkaya, Sibel A. Ozkan
Summary: Lack of timely detection or proper monitoring of diseases is still a leading cause of death. Developing a portable device similar to a portable laboratory for rapid disease diagnosis is crucial. Electroanalytical methods, particularly using nanomaterials like Mxenes, are cost-effective and highly sensitive for point-of-care diagnostics. This review provides an overview of recent studies on electrochemical POC diagnostics using Mxenes and offers insights into improving selectivity and sensitivity in sensor studies.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Review
Chemistry, Analytical
Ahmet Cetinkaya, S. Irem Kaya, Sibel A. Ozkan
Summary: Green chemistry principles have gained increasing importance in various fields of chemistry, specifically analytical chemistry. The development of Green Analytical Chemistry (GAC) is a significant approach to minimize the negative impacts of analytical techniques on the environment and human health. This review provides a comprehensive overview of the history of GAC and existing greenness assessment tools, discussing their importance in analytical approaches. It also examines research articles on the applicability of these tools in terms of greenness metrics, aiming to provide researchers with comprehensive information.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Goksu Ozcelikay, Ahmet Cetinkaya, Esen Bellur Atici, Sibel A. Ozkan
Summary: In this study, an electroanalytical quantification method for sugammadex was developed using molecular imprinting via the electropolymerization technique. The EP-MIP(SUG)/SPAuE sensor exhibited high sensitivity and specificity/selectivity, as demonstrated by its ability to detect sugammadex in biological fluids and differentiate it from similar molecules. The EP-MIP(SUG)/SPAuE sensor showed good analytical performance and validation parameters according to ICH guidelines, making it a promising tool for quantitative analysis of sugammadex in various samples.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Untika Pengsomjit, Waleed Alahmad, Pakorn Varanusupakul, Sibel A. Ozkan, Virender K. Sharma, Charoenkwan Kraiya
Summary: This paper presents a greener methodology for determining streptomycin in honey using gel electromembrane extraction (G-EME) technique with exfoliated graphene (EG). The addition of EG enhances the extraction efficiency and sensitivity. The problem of increased electric current and electroendosmosis due to graphene-based nanomaterials is solved by tuning the acceptor phase's volume.
Article
Chemistry, Analytical
Mehmet Kavacik, Bahar Ince, Fikret Ari, Mehmet Altay Unal, Mustafa Kemal Sezginturk, Sibel A. Ozkan
Summary: This study developed a new portable frequency analyser based on Quartz Tuning Fork (QTF) technology for disease detection. The QTF-based biosensor demonstrated remarkable sensitivity, selectivity, and a wide linear detection range with a low limit of detection. The response of the biosensor was evaluated in commercial human serum samples, and the electrode surface was comprehensively characterized using SEM and AFM.
MICROCHEMICAL JOURNAL
(2023)
Article
Electrochemistry
Fatma Budak, Ahmet Cetinkaya, S. Irem Kaya, Esen Bellur Atici, Sibel A. Ozkan
Summary: This study investigated the electrochemical behavior of Sunitinib and its metabolites on an electrode and developed a molecularly imprinted polymer-based electrochemical sensor for the sensitive and selective determination of Sunitinib.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Fikret Ari, Bahar Ince, Mehmet Altay Unal, Mustafa Kemal Sezginturk, Sibel A. Ozkan
Summary: Although there is still room for improvement in diagnostic and treatment options for various cancers, electrochemical biosensors using quartz tuning forks (QTF) have emerged as a promising platform. This research explores the functionalization and isolation of QTF for biomarker determination, demonstrating their unique response and sensitivity. The results show that QTF-based immunosensors have high detection sensitivity and low cost, making them ideal for point-of-care diagnostic devices.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Leyla Karadurmus, Fatma Budak, Ahmet Cetinkaya, Esen Bellur Atici, Sibel A. Ozkan
Summary: Two molecularly imprinted polymer-based electrochemical sensors were developed for the determination of tolvaptan. The sensors showed advantages in selective and sensitive determination, with optimized parameters and characterized surface properties. The applicability of the sensors was evaluated in tablet and serum samples, confirming their selectivity and efficiency.
ANALYTICAL METHODS
(2023)
Review
Chemistry, Analytical
Mohammad Reza Bayatloo, Hadi Tabani, Saeed Nojavan, Michal Alexovic, Sibel A. Ozkan
Summary: Chirality plays a critical role in various fields such as pharmaceutics, toxicology, and environmental investigations due to the different activities exhibited by enantiomers of chiral compounds. This review discusses the current status of liquid-phase microextraction approaches and chiral separation techniques used for sample preparation and studying enantiomers.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(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)