4.3 Article

Room-temperature growth of ion-induced Si- and Ge-incorporated carbon nanofibers

Journal

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 252, Issue 6, Pages 1345-1349

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201451660

Keywords

carbon nanofibers; composite nanomaterials; germanium; ion irradiation; silicon

Funding

  1. Japan Society for the Promotion of Science (JSPS) [23360020]
  2. Grants-in-Aid for Scientific Research [23360020] Funding Source: KAKEN

Ask authors/readers for more resources

We have demonstrated the fabrication of Si- and Ge-incorporated carbon nanofibers (CNFs) at room temperature. Graphite foil surfaces were irradiated by Ar+ and Ne+ ions with simultaneous Si and Ge supply, and the dependences of the ion-induced composite CNFs surface morphology on the ion species and type of incorporated materials were investigated. The sample surfaces were characterized by various kinds of densely distributed nanostructures, such as conical protrusions, nanoneedles, nanocones, and CNF-tipped cones, depending on the Si and Ge supply rates during ion irradiation. In addition, Ne+ irradiation yielded longer CNFs compared to Ar+-irradiated CNFs. Thus, the nanostructures growth was controllable by adjusting the ion and material species. Surface morphology of ion-induced Ge-incorporated CNFs. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.3
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Thermodynamics

Morphology and Growth Region Analysis of Carbon Nanotubes Growth in Water-Assisted Flame Synthesis

N. Hamzah, M. F. Mohd Yasin, M. T. Zainal, M. Mohd Sies, M. Z. Mohd Yusop, C. T. Chong, N. A. Mohd Subha, M. S. Rosmi Rosmi

Summary: This study analyzes the effect of adding water to the fuel stream during flame synthesis of carbon nanotubes (CNTs). The results show that water addition reduces flame height and axial extent of the growth region. However, the average growth region temperature and CNT morphology remain relatively unchanged. Additionally, water addition leads to a decrease in the thickness of the amorphous carbon layer in the growth region.

COMBUSTION SCIENCE AND TECHNOLOGY (2023)

Article Materials Science, Multidisciplinary

Effective reduction and doping of graphene oxide films at near-room temperature by microwave-excited surface-wave plasma process

Golap Kalita, Balaram Paudel Jaisi, Masayoshi Umeno

Summary: In this study, a novel microwave-excited surface-wave plasma process was demonstrated to reduce insulating graphene oxide to highly conducting reduced graphene oxide on flexible substrates, as well as achieving reduction of freestanding graphene oxide paper.

DIAMOND AND RELATED MATERIALS (2022)

Article Physics, Condensed Matter

Crystallographic Texture and Applications of Pure Cu Formed by Shot Peening

Hisashi Sato, Yuya Ito, Golap Kalita, Yoshimi Watanabe

Summary: The crystallographic texture of pure Cu can be modified by shot peening, resulting in the formation of a {110} fiber texture. Moreover, using shot-peened specimens with {110} fiber texture improves the growth of high-quality graphene on their surfaces. Therefore, controlling the crystallographic texture by shot peening is of great importance for preparing high-quality graphene and other catalytic substrate surfaces.

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS (2022)

Article Chemistry, Multidisciplinary

Electrochemical Reactivity Investigation of Urea Oxidation Reaction in Nichrome/Nitrogen Doped Carbon Nanofibers Synthesized by CVD Method

Bhagyashri Todankar, Yazid Yaakob, Golap Kalita, Masaki Tanemura

Summary: Urea oxidation reaction (UOR) catalysts have been extensively studied due to their affordability, ease of storage and shipment, as well as their non-toxic and non-combustible characteristics. In this study, nitrogen doped carbon nanofibers (CNFs) grown on nichrome foil were investigated as a potential catalyst for urea fuel cells. The CNFs exhibited significant urea oxidation reaction in various molar concentrations of urea, making them a promising candidate for urea oxidation.

CHEMISTRYSELECT (2022)

Article Materials Science, Multidisciplinary

Optimized single-step synthesis of graphene-based carbon nanosheets from palm oil fuel ash

Muhammad Ayub, Mohd Hafiz Dzarfan Othman, Mohd Zamri Mohd Yusop, Imran Ullah Khan, Zhong Sheng Tai, Siti Khadijah Hubadillah

Summary: Recycling palm oil fuel ash (POFA) into holey graphene nanosheets offers a sustainable and greener approach to address environmental pollution. This research focuses on studying the effects of temperature and ratio of potassium hydroxide (KOH) on the production of porous graphene sheets with optimized conditions found at 800 degrees C and a 1:3 impregnation ratio. The resulting graphene nanosheets have uniform porosity and comparable surface area, pore volume, and carbon percentage to previous findings using other biomass sources.

MATERIALS CHEMISTRY AND PHYSICS (2023)

Article Materials Science, Multidisciplinary

Silver nanoparticle doped graphene-based impedimetric biosensor towards sensitive detection of procalcitonin

Faysal Selimoglu, Bahri Gur, Muhammed Emre Ayhan, Fatma Gur, Golap Kalita, Masaki Tanemura, Mehmet Hakki Alma

Summary: Procalcitonin(PCT) is a highly sensitive biomarker for severe inflammation and infection in the early detection of sepsis. The interaction between electrode material and attached material is important. A silver nanoparticle (AgNp) doped graphene-based sensitive PCT biosensor with low-cost, environmentally friendly materials is presented here. The biosensor exhibits reusability, adhesion of antibody-protein, and a detection limit of 0.55 ng/mL.

MATERIALS CHEMISTRY AND PHYSICS (2023)

Article Materials Science, Ceramics

Surface and tribology characterization of diamond-like carbon flakes reinforced oxide film by pulse anodizing

Nur Aszreen Zulkifli, Shahira Liza, Hiroki Akasaka, Kanao Fukuda, Nur Adilah Mohd Rawian, Nur Afieqah Md Ghazazi, Noor Ayuma Mat Tahir, Yazid Yaakob

Summary: Using pulse current and DLC flakes can improve the surface quality and durability of hard anodizing. Increasing the DLC content enhances the hardness and wear resistance of the oxide film, while using 5 g/L DLC in the electrolyte reduces friction.

CERAMICS INTERNATIONAL (2023)

Article Materials Science, Multidisciplinary

Morphological changes of carbon thin films with nitrogen doping synthesized by microwave-excited surface wave plasma CVD

Balaram Paudel Jaisi, Rucheng Zhu, Golap Kalita, Masayoshi Umeno

Summary: The growth of carbon thin films on insulating substrates with nitrogen doping at various temperatures was investigated using microwave-excited surface wave plasma chemical vapor deposition technique. Partially graphitized carbon thin films were obtained at a low temperature of 150 degrees C on quartz substrates. The addition of nitrogen reduced the granular morphology and formed planar structures, revealing the significance of nitrogen incorporation in controlling the morphology of carbon films.

MATERIALS CHEMISTRY AND PHYSICS (2023)

Article Materials Science, Multidisciplinary

Evaluation study on experimental and theoretical simulation elastic properties analysis of neodymium-doped magnesium borotellurite glasses

Mohammad Ayman Abuallan, Mohd Hafiz Mohd Zaid, Khamirul Amin Matori, Yazid Yaakob, Abdul Rahman Sarmani, Wei Mun Cheong, Zhi Wei Loh

Summary: This study investigated the effect of neodymium oxide modification on the elastic, structural, and physical properties of magnesium borotellurite glasses. Increasing the concentration of Nd2O3 resulted in an increase in the density of the bulk samples from 3.97 g/cm3 to 4.10 g/cm3, while the molar volume showed the opposite trend. X-ray diffraction analysis confirmed the amorphous state of the glasses, and the elastic moduli exhibited a linear increase with the increment of Nd2O3. The elastic moduli calculated using the Makishima-Mackenzie and Rocherulle's models followed the same trend as the experimental values. The results indicated that the MBTNd-3 glass sample had the optimum properties for high-strength glass applications.

MATERIALS TODAY COMMUNICATIONS (2023)

Review Chemistry, Physical

Recent development on low temperature synthesis of cubic-phase LLZO electrolyte particles for application in all-solid-state batteries

Golap Kalita, Takashi Endo, Toshihiko Nishi

Summary: This paper reviews the synthesis methods of oxide-based solid-state electrolytes (SSEs), focusing on the low temperature synthesis of cubic-phase LLZO particles and the challenges in achieving high relative density with excellent ionic conductivity. The future prospects of applying these ultrafine particles in all-solid-state batteries are also discussed.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

Article Materials Science, Multidisciplinary

Multi-walled carbon nanotubes growth by chemical vapour deposition: Effect of precursor flowing path and catalyst size

K. F. Chan, N. A. M. Maznam, M. A. Hazan, R. N. A. Ahmad, A. S. Sa'ari, N. F. I. Azman, M. S. Mamat, M. A. . A. . Rahman, M. Tanemura, Y. Yaakob

Summary: In this study, multi-walled carbon nanotubes (MWCNTs) were successfully grown on nickel oxide (NiO) via chemical vapour deposition (CVD), and the influence of catalyst particle size and precursor flowing path on the growth of MWCNTs was investigated. The results showed that increasing NiO milling time and choosing an appropriate D value can improve the crystallite size and carbon yield of MWCNTs.

CARBON TRENDS (2022)

Article Materials Science, Multidisciplinary

Upcycling the barbeque grease into carbon nanomaterials

K. F. Chan, A. K. Ranade, P. Desai, M. A. Hazan, N. F. I. Azman, S. Shaharifin, G. Kalita, M. S. Mamat, M. Tanemura, Y. Yaakob

Summary: Carbon nanomaterials have significant applications in various fields, and green synthesis of these materials using low-cost and energy-efficient methods is of great interest. In this study, carbon nanotubes and graphitic carbon layers were synthesized using barbeque grease as the carbon precursor via chemical vapour deposition technique. The research aimed to explore novel and affordable carbon precursors for high-quality carbon nanomaterial production.

CARBON TRENDS (2022)

Article Chemistry, Multidisciplinary

One-step and room-temperature fabrication of carbon nanocomposites including Ni nanoparticles for supercapacitor electrodes

Tatsuya Akiyama, Shuhei Nakanishi, Yazid Yaakob, Bhagyashri Todankar, Vikaskumar Pradeepkumar Gupta, Toru Asaka, Yosuke Ishii, Shinji Kawasaki, Masaki Tanemura

Summary: This study proposes a simple process for the room temperature fabrication of pseudocapacitor electrodes with an enhanced surface area and excellent faradaic redox reaction layer. A carbon layer containing fine Ni nanoparticles dispersed on a metallic electrode was successfully prepared through ion irradiation and local graphitization. The fabricated electrode showed a significantly increased stored charge ability compared to the bulk Ni foil. The results suggest that the carbon layer with Ni nanoparticles fabricated by ion irradiation has great potential for the development of supercapacitors.

RSC ADVANCES (2022)

Article Nanoscience & Nanotechnology

Effects of post-annealing on GaN thin films growth using RF magnetron sputtering

N. A. Othman, N. Nayan, M. K. Mustafa, A. S. Bakri, Z. Azman, N. A. Raship, M. M. I. M. Hasnan, M. H. Mamat, M. Z. M. Yusop, A. S. A. Bakar, M. Y. Ahmad

Summary: This study investigates the characteristics of GaN thin films deposited using radio-frequency (RF) magnetron sputtering at room temperature and their changes after post-annealing treatment. The results show that the GaN films without post-annealing treatment exhibit an amorphous structure, while post-annealing results in the presence of crystalline gallium oxide (Ga2O3) in the GaN films.

INTERNATIONAL JOURNAL OF NANOTECHNOLOGY (2022)

Article Nanoscience & Nanotechnology

Impedance spectroscopy analysis of Al/100-plane AlN/p-Si MIS prepared by HiPIMS method for tailoring dielectric properties

Zulkifli Azman, Nafarizal Nayan, Megat Muhammad Lkhsan Megat Hasnan, Ahmad Shuhaimi Abu Bakar, Mohamad Hafiz Mamat, Mohd Zamri Mohd Yusop

Summary: The effects of variation of sputtering pressure on the structure and electrical properties of AlN HiPIMS deposited on Si substrate were investigated. The results showed that increasing the sputtering pressure led to a decrease in the thickness of the AlN thin film, while the lowest surface roughness was observed at a sputtering pressure of 5 mTorr. The electrical conductivity of AlN was directly proportional to the sputtering pressure and remained stable at different temperatures.

INTERNATIONAL JOURNAL OF NANOTECHNOLOGY (2022)

No Data Available