Article
Chemistry, Multidisciplinary
Yunpeng Wu, Deyang Yu, Yi Feng, Leiyun Han, Xilong Liu, Xudong Zhao, Xiaoyang Liu
Summary: This paper presents a new method to synthesize ferromagnetic graphene by nitrogen doping, and characterizes the material using XPS, Raman spectroscopy, and SQUID. The results show that when the nitrogen doping reaches a certain threshold, graphene exhibits ferromagnetism.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Yoichi Tanabe, Yoshikazu Ito, Katsuaki Sugawara, Samuel Jeong, Tatsuhiko Ohto, Tomohiko Nishiuchi, Naoaki Kawada, Shojiro Kimura, Christopher Florencio Aleman, Takashi Takahashi, Motoko Kotani, Mingwei Chen
Summary: This study systematically investigated the electronic properties of N-doped 3D graphene using an electric-double-layer transistor method. It was found that Urbach-tail-like localized states exist around the neutral point of N-doped 3D graphene with background metallic transport channels. The dual nature of electronic states, resulting from the synergistic effect of N dopants and 3D curvature of graphene, can explain the high electrocatalytic activity, enhanced molecular adsorption, and light absorption of N-doped 3D graphene.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Boran Tao, Na Zhang, Tian Ye, Pengfei Gao, Hongda Li, Yuanmiao Xie, Jinghua Liu, Guofu Wang, Wenfeng Zhang, Haixin Chang
Summary: A mantis shrimp shell is converted into a 3D bicontinuous porous carbon material with high surface area and pore volume, and the introduction of Fe2+ enhances the specific capacitance and operating voltage of the material. It shows great potential in electrochemical energy storage.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Yangyang Hu, Danting Li, Xiaohui Liu, Tiancong Fan, Guiling Zhang, Yan Shang
Summary: The electronic and transport properties of covalently functionalized graphene sheets with FeBz groups were calculated by DFT and NEGF methods. The systems showed chemical stability and exhibited half-metallic behavior with up-spin state behaving as a semiconductor channel and down-spin state as a metallic channel. The functionalization introduced anisotropy magnetism and decreased the conductivity due to trapping effects. The transport properties were influenced by the number, alignment style, and spin polarized character of the functionalized groups.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Liangliang Huang, Dongfeng Diao, Yuanyuan Cao
Summary: This study investigated the electrochemical corrosion behaviors of N-doped graphene sheets embedded carbon (N-GSEC) film in H2SO4 solutions. The corrosion of N-GSEC film originated from the oxidation of carbon, resulting in the formation of N-doped graphene oxides and more exposed graphene edges, which significantly improved the electron transfer rates and electrochemical activity. The corroded N-GSEC exhibited much higher electrocatalytic activity for phenol biomolecules.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Aleksander Bach Lorentzen, Mehdi Bouatou, Cyril Chacon, Yannick J. Dappe, Jerome Lagoute, Mads Brandbyge
Summary: Recent studies have shown the spatial control of nitrogen dopant concentration in graphene using a molecular mask. This technique enables the creation of ballistic electron optics-like structures and has implications for current focusing and quantized conductance.
Article
Chemistry, Physical
Chang Zhang, Wei Liu, Min Song, Jingjing Zhang, Feng He, Jiao Wang, Mo Xiong, Jian Zhang, Deli Wang
Summary: In this study, a pyranoid-O-dominated graphene-like nanocarbon (GLC) material with high surface area, hierarchical porous structure, and abundant edge defects was successfully constructed through the high-temperature alkali activation of cellulose-based precursor. The GLC electrocatalyst exhibited excellent 2e- ORR performance with high H2O2 productivity and ultrafast wastewater degradation ability. These findings provide new insight into the 2e- ORR selectivity of carbon-based electrocatalysts for H2O2 production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Materials Science, Composites
Lin Zhang, Weiping Xiao, Yu Zhang, Fengyan Han, Xiaofei Yang
Summary: This study presents a novel hybrid nanostructure electrocatalyst, which significantly enhances the activity and stability of hydrogen evolution reaction through regulating composition and interfacial interactions. The optimal hybrid electrocatalyst exhibits outstanding performance in alkaline electrolyte, contributing to the exploration of a new family of non-precious metal-based electrocatalysts.
COMPOSITES COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Chuanbiao Bie, Huogen Yu, Bei Cheng, Wingkei Ho, Jiajie Fan, Jiaguo Yu
Summary: Nitrogen-doped graphene (NG) as a derivative of graphene, with the ability to break the undifferentiated structure, open the bandgap, and provide an uneven electron density distribution, retains the advantages of graphene while offering novel properties for photocatalysis. With wide applications in hydrogen production, CO2 reduction, pollutant degradation, and other directions, NG-based photocatalysis shows great potential for addressing energy and environmental challenges.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Daria M. Sedlovets
Summary: Researchers have developed nitrogen-doped graphene-like films (N-GLFs) through direct liquid-based chemical vapor deposition on silicon substrates. They found that a synthesis temperature of 900°C and a film thickness of about 50 nm resulted in the highest capacitance, exhibiting excellent electrochemical properties. The area-normalized capacitance of the N-GLFs reached 960 mF/cm², surpassing previous achievements in thin graphene-based films.
Article
Chemistry, Physical
Qiuxia Lu, Shijie Xie, Fanyao Qu
Summary: The study introduces a spin diffusion theory to predict unusual pure spin current transport in unintentionally doped organic semiconductors. Experimental results demonstrate the feasibility of pure spin current transport via polaron hopping at low carrier density. Interestingly, the spin diffusion length (SDL) can be prolonged by controlling molecular geometry structural disorder and reducing reorganization energy, opening up new possibilities for designing organic spintronics devices with long SDL and low carrier density.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Optics
Junxin Chen, Xiaofen Xu, Yuqiu Ma, Haijun Qin, Jun Liu, Fengzhen Lv, Changming Zhu, Liguang Wang, Lizhen Long, Fuchi Liu, Yong Yang, Wenjie Kong
Summary: The study successfully synthesized nitrogen-doped graphene oxide quantum dots (NGOQDs) using a hydrothermal method, and investigated their optical properties and microstructures. The NGOQDs showed tunable photoluminescence and exhibited a larger blue-shift compared to graphene oxide quantum dots. The observed blue-shift in NGOQDs was attributed to the higher content of pyridine-like and pyrrolic-like nitrogen atoms doping, supported by density functional theory calculations.
JOURNAL OF LUMINESCENCE
(2021)
Article
Engineering, Electrical & Electronic
Lining Fan, Wei Chen, Ke Zhou, Hui Zheng, Peng Zheng, Liang Zheng, Yang Zhang
Summary: Three-dimensional nitrogen-doped few-layer graphene sheets (3-D NFLGs) were prepared by combining a fullerene C60 precursor with a microwave excited nitrogen plasma process. The growth mechanism, morphology, and field emission properties of the synthesized 3-D NFLGs were studied.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Physics, Applied
Juliana M. da Silva, Fernando A. F. Santana, Jorge G. G. S. Ramos, Anderson L. R. Barbosa
Summary: In this study, we investigate the behavior of the spin Hall effect in a system with disorder and interface-induced spin-orbit coupling by experimental and numerical simulations of single-layer graphene devices. The results show that the spin Hall angle of graphene devices exhibits mesoscopic fluctuations and follows a universal relationship with the dimensionless longitudinal conductivity.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Multidisciplinary
Rohini P. Gawade, Sangeeta G. Dahotre, Shamal L. Chinke
Summary: This study reports on the synthesis, characterization, and shock absorption characteristics of Graphene like Nano Carbon (GNC) prepared through the combustion of biomass using Rapid Thermal Chemical Vapor Deposition (RT-CVD) technique. The GNCs were found to be rectangular in shape, thick, with sharp edges and corners, and containing wrinkles on the surface. Raman, Infrared, and UV spectroscopy, as well as microscopy, were used to characterize the GNCs. The shock absorption properties of GNCs were investigated and it was found that they absorbed around 65% of incident energy, making them suitable for applications in armor, shock and blast mitigation, defense, and space.
Article
Materials Science, Multidisciplinary
Ashwini P. Alegaonkar, Aniruddha S. Kibey, Prashant S. Alegaonkar, Anjali Kshirsagar, Satish K. Pardeshi
MATERIALS CHEMISTRY AND PHYSICS
(2019)
Article
Multidisciplinary Sciences
Inderpal Singh Sandhu, Murugan Thangadurai, Prashant S. Alegaonkar, D. R. Saroha
DEFENCE SCIENCE JOURNAL
(2019)
Article
Engineering, Environmental
Sanghamitra Acharya, Prashant Alegaonkar, Suwarna Datar
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Chemistry, Multidisciplinary
Rohidas M. Jagtap, Samir R. Shaikh, Rajesh G. Gonnade, Shabnam Raheem, Masood A. Rizvi, Satish K. Pardeshi
Article
Chemistry, Multidisciplinary
Abhimanyu Raj Shekhar, Arvind Kumar, Ravuri Syamsai, Xingke Cai, Vilas G. Pol
Summary: The COVID-19 pandemic has shifted society's attention towards the consequences on human health, while neglecting the rapid increase in plastic waste. By advancing upcycling technologies, we can reduce the global plastic footprint and achieve economic circularity and environmental sustainability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Malhari N. Raste, Rohidas M. Jagtap, Satish K. Pardeshi
Summary: The bisthiourea copper and cadmium adipate were synthesized using a simple mechanochemical method, along with their glycine-doped derivatives. The doped materials showed higher thermal stability and superior nonlinear optical properties compared to the pure materials.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Chemical
Chandu N. Potangale, Satish K. Pardeshi
Summary: Nickel substituted Barium ferrites were synthesized by citrate gel method, and characterized through various techniques to investigate their properties variation. The increase in band gap, changes in magnetic properties and electrical conductivity were observed with the increase of nickel content.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Vijay B. B. Sangale, Rohidas M. M. Jagtap, Bhupendra P. P. Mali, Rajesh G. G. Gonnade, Satish K. K. Pardeshi
Summary: Five different ZnO nanocrystallites were synthesized using surfactant-assisted hydrothermal technique. Among them, ZnO-4 synthesized with CTAB showed the smallest crystallite size and disc-like morphology. ZnO-4 was used as an efficient catalyst for one pot-three component green synthesis of 3-[(aryl)(arylthio)methyl]-1H-indoles. The Lewis acidic property of the catalyst-supported probable mechanism was proposed and ZnO-4 showed higher yields, lower reaction time, catalyst recovery and reuse.
Article
Chemistry, Physical
Sayani Biswas, Prashant S. Alegaonkar
Summary: After the emergence of graphene, a new family of 2D material-MXene is gradually growing and making progress in the field of study. This review covers the major breakthroughs and development of synthesis mechanisms of MXene, emphasizing the importance of good data characterization, and briefly discusses the properties and recent advances in applications of this class of materials.
Article
Chemistry, Physical
Shamal L. Chinke, Inderpal Singh Sandhu, Tejashree M. Bhave, Prashant S. Alegaonkar
Article
Chemistry, Physical
Masood Ahmad Rizvi, Zakir Hussain, Fasil Ali, Asif Amin, Sajjad Husain Mir, Gaulthier Rydzek, Rohidas M. Jagtap, Satish K. Pardeshi, Raies A. Qadri, Katsuhiko Ariga
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Ashwini P. Alegaonkar, Prashant S. Alegaonkar, Satish K. Pardeshi
NANOSCALE ADVANCES
(2020)
Proceedings Paper
Multidisciplinary Sciences
Shamal Chinke, Rohini Gawade, Prashant Alegaonkar
ADVANCES IN BASIC SCIENCES (ICABS 2019)
(2019)
Proceedings Paper
Physics, Applied
Rakesh Kumar Kalal, Shamal Chinke, Balesh Ropia, Himanshu Shekhar, Prashant Alegaonkar
DAE SOLID STATE PHYSICS SYMPOSIUM 2018
(2019)
Article
Chemistry, Multidisciplinary
Shobha N. Birajdar, Neha Y. Hebalkar, Satish K. Pardeshi, Sulabha K. Kulkarni, Parag Adhyapak