Article
Chemistry, Physical
Ning Pan, Shuhui Liu, Ying Han, Dejie Li, Jinling Chai
Summary: A comparative study was conducted on the performance of Ag2CO3 catalysts synthesized under different conditions. The results showed that Ag2CO3 synthesized in a surfactant-free microemulsion template exhibited higher crystallinity, more regular morphology, uniform size, larger specific surface area, and stronger visible light absorption, leading to better catalytic photodegradation activity.
JOURNAL OF MATERIOMICS
(2022)
Article
Electrochemistry
Shunsuke Shiba, Soichiro Yoshimoto, Shunta Hashiguchi, Masashi Kunitake, Dai Kato, Osamu Niwa, Masanobu Matsuguchi
Summary: This study reports a method of preparing porous gold nanomesh film through gold electrodeposition in a bicontinuous microemulsion. Toluene selectively adsorbs on the Au surface, inducing anisotropic 2D growth of gold, and the nanochannels in the microemulsion form abundant in-plane nanopores.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Yugo Fujimoto, Yasuhiro Shu, Koji Miyake, Yoshiaki Uchida, Norikazu Nishiyama
Summary: This study introduces a method of coating the external surface of SAPO-34 nanocrystals with ZrO2 to inhibit coke formation and increase the catalyst lifetime. The ZrO2-coated SAPO-34 surface lacking acidity contributes to the reduction of coke formation at the pore mouths.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mingjun Chen, Xiang Zhang, Dukang Yan, Jianbo Deng, Wenhai Sun, Zitong Li, Yingjun Xiao, Zhenmin Ding, Jiupeng Zhao, Yao Li
Summary: Through experiments and theoretical calculations, it is found that oxygen vacancy modulated amorphous tungsten oxide films have excellent electrochromic performance and energy storage capacity, making them suitable for high-performance dual-band electrochromic energy storage (DEES) smart windows.
MATERIALS HORIZONS
(2023)
Article
Materials Science, Multidisciplinary
B. B. Bokhonov, O. A. Logutenko, A. M. Vorobyov, T. A. Borisenko, A. I. Titkov
Summary: This study reports a simple and cost-effective method to synthesize Ni@Pd nanowires with a core-shell structure via galvanic replacement reaction, enabling large-scale production.
Review
Polymer Science
Ottavia Bellotto, Maria C. Cringoli, Siglinda Perathoner, Paolo Fornasiero, Silvia Marchesan
Summary: The use of peptides as templates for inorganic nanoparticle formation is an environmentally friendly method with applications in various fields. Short-peptide gelators provide dynamic supramolecular environments, and recent research progress outlines future research directions.
Article
Chemistry, Physical
Sk Mehebub Rahaman, Anirudh Bardhan, Trishna Mandal, Madhuparna Chakraborty, Nargis Khatun, Mousumi Layek, Shivanjali Sharma, Manab Chakravarty, Rumpa Saha, Bidyut Saha
Summary: This study investigates the influence of cosurfactant hydrophobicity on the formation of cerium tetrafluoride nanoparticles in water-in-oil microemulsion. The results show that the synthesis of nanostructures occurs in three stages for both types of microemulsions. The use of 1-butanol as cosurfactant leads to faster reaction, while longer hydrophobic chain length of 1-hexanol results in the formation of smaller hexagonal nanorods.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Minzhe Chen, Nan Wang, Wei Zhou, Xiaoyan Zhu, Qikai Wu, Ming-Hsien Lee, Dengke Zhao, Shunlian Ning, Maozhong An, Ligui Li
Summary: Preparing MoS2-based materials with reasonable structure and catalytic activity is crucial for enhancing the kinetics of lithium polysulfides conversion in Li-S batteries. In this study, hollow nanotubes composed of N-doped ultrathin MoS2 nanosheets were fabricated using CdS nanorods as a template. The N-MoS2 NHTs exhibit excellent performance as sulfur hosts, accelerating mass transfer and enhancing the adsorption and transformation of LiPSs. These findings provide feasible guidance for designing advanced MoS2-based cathode materials in LSBs.
Article
Engineering, Environmental
Zejun Zhao, Zhixiao Zhu, Fang Wang, Sijia Li, Xiaobing Bao, Leilei Zhang, Sen Lin, Yong Yang
Summary: A sacrifice-template strategy combined with carbonization treatment was used to fabricate hollow Mo-W-polydopamine hybrid nanotubes embedded with ultrasmall Mo-W bimetallic carbides for boosting electrocatalytic hydrogen evolution and lithium ions storage. The resulting MoxW2xC/N, P-codoped CNTs exhibited outstanding electrocatalytic activity and lithium storage performance, making it a promising material for both applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Fengyi Wang, Ziwen Lv, Xiangxiang Zhong, Jianqiang Wang, Fuquan Li, Hongtao Chen, Mingyu Li
Summary: Using bicontinuous microemulsion as a template enables the fabrication of monolithic porous Cu films with tunable porosity, exhibiting excellent low-temperature reflow capability and high service temperatures. This technology offers flexibility and controllability in interconnection compositions and performance, showing promising potential in advanced packaging technologies. The compatibility with existing wafer deposition techniques makes it a viable and scalable solution for mass production, with the electrodeposition of monolithic Cu arrays on Cu pillars demonstrating its applicability.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Multidisciplinary Sciences
Mingyi Chen, Peng Liu, Ji-Huan He, Hsing-Lin Wang, Haonan Zhang, Xin Wang, Rouxi Chen
Summary: This study successfully prepared nanostructured ZnO with different morphologies using electrospinning combined with thermal treatment and hydrothermal synthesis methods, showing great potential in preparing nano materials at low temperatures.
SCIENTIFIC REPORTS
(2021)
Article
Nanoscience & Nanotechnology
Samina Akbar, Jacob Boswell, Sabrina Waters, Stephen Williams, Joanne M. Elliott, Adam M. Squires
Summary: This paper introduces a method for producing mesoporous metals with periodic 3D nanostructures by tuning the nanoscale dimensions of the metal through the addition of a cosurfactant that controls the lattice parameter of the template. Characterization of mesoporous platinum samples using X-ray scattering revealed varying unit cell sizes, wire thicknesses, and estimated pore dimensions. The control of size in these materials offers potential for controlling electrochemical behavior and designing metamaterials with specific optoelectronic properties.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Ruixiang Wang, Yuanliang Yuan, Jianbo Zhang, Xiaocong Zhong, Jiaming Liu, Yongmin Xie, Shuiping Zhong, Zhifeng Xu
Summary: Transition metal phosphide/carbon composites, specifically Fe2P/NPCs, were successfully synthesized with N, P-enriched carbon nanospheres embedded with Fe2P nanocrystals. These composites exhibited outstanding electrocatalytic activity for the oxygen reduction reaction, high durability, and excellent methanol tolerance. Furthermore, when applied in zinc-air batteries, Fe2P/NPCs demonstrated superior performance compared to commercial Pt/C-based batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Biochemistry & Molecular Biology
Maria Jose Lo Faro, Ileana Ielo, Dario Morganti, Antonio Alessio Leonardi, Sabrina Conoci, Barbara Fazio, Giovanna De Luca, Alessia Irrera
Summary: This paper reports on the decoration of ultrathin silicon nanowires with gold nanoparticles for surface-enhanced Raman scattering applications. The results show that the decorated nanowires exhibit high enhancement effects after different surface functionalizations.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Ceramics
Jierui Mu, Xiaohong Shi, Hongrui Zhang, Li Yang, Xu Han
Summary: Introducing HfCnws into carbon fiber preforms can improve the mechanical properties of C/C composites. The presence of HfCnws refines the grain size of PyC and significantly enhances the flexural strength of C/C composites.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
Xiaoshuang Liu, Junran Zhang, Binjie Xu, Yunhao Lu, Yiqiang Zhang, Rong Wang, Deren Yang, Xiaodong Pi
Summary: The role of dopants on deformation and mechanical properties of 4H silicon carbide (4H-SiC) was investigated using nanoindentation. It was found that different dopants can significantly affect the hardness, elastic modulus, and fracture toughness of 4H-SiC, as well as the formation of dislocations and cracks during nanoindentation. Moreover, polymorph transitions from 4H-SiC to amorphous SiC and 3C-SiC were observed. These findings provide valuable insights for the design of processing methods for differently doped 4H-SiC substrate wafers.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Yuanchao Huang, Rong Wang, Naifu Zhang, Yiqiang Zhang, Deren Yang, Xiaodong Pi
Summary: This study investigates the role of hydrogen in the growth of HPSI 4H-SiC single crystals, revealing that it significantly mitigates N doping while hardly affecting B doping. The study also reveals that adjusting the relative B and N doping concentrations has a substantial impact on the Fermi energy of HPSI 4H-SiC.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Jie Hu, Houwei Pang, Yuan Wang, Deren Yang, Dongsheng Li
Summary: A long-term reliable Erbium doped light emitting device based on npn heterojunction structure has been developed. The device demonstrates a linear relation between the electroluminescence intensity of Er3+ ions and the operating currents. The device with a 3V onset voltage can operate for over 1200 hours due to the separation and acceleration of electrons that excite Er3+ ions. This npn heterojunction device structure can also be applied to other rare earths like Tm, Eu, etc., which opens up possibilities for electroluminescence of rare earths and integrated silicon photonics.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Liang Ji, Sai Luo, Lei Li, Ningkang Qian, Xiao Li, Junjie Li, Jingbo Huang, Xingqiao Wu, Hui Zhang, Deren Yang
Summary: Developing high-performance electrocatalysts for hydrogen evolution reaction in alkaline media is challenging but desirable for water splitting. A wet chemistry method was used to synthesize RuCu nanoflowers with tunable atomic ratios. The Ru3Cu NFs exhibited excellent catalytic properties, requiring only 55 mV for a current density of 10 mA cm(-2) and showing minimal decay after 2000 cycles. The flower-like structure and introduction of Cu improved the HER performance by providing more active sites and modulating the electronic structure of Ru.
NANOSCALE ADVANCES
(2023)
Article
Physics, Applied
Rong Wang, Yuanchao Huang, Deren Yang, Xiaodong Pi
Summary: The widespread application of 4H silicon carbide (4H-SiC) is imminent due to the increasing fabrication of high-power electronics based on 4H-SiC, promoting low-carbon development worldwide. Additionally, researchers are intensively exploring 4H-SiC as a platform for wafer-scale integration of semiconductor and quantum technologies in the field of quantum technologies. Given the significance of impurities and defects in semiconductors, a comprehensive understanding of impurities and defects in 4H-SiC is crucial. This Perspective summarizes recent experimental and theoretical advancements in impurity and defect research in 4H-SiC, along with a brief historical overview. Furthermore, the discussion covers impurity engineering and defect engineering to fully realize the potential of 4H-SiC, followed by an outline of the challenges in studying impurities and defects in 4H-SiC.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Xiaoshuang Liu, Yazhe Wang, Xi Zhang, Yunhao Lu, Rong Wang, Deren Yang, Xiaodong Pi
Summary: We investigated the crack-healing mechanism of 4H silicon carbide (4H-SiC) and found that high-temperature thermal annealing in the air atmosphere effectively heals indentation-induced cracks in undoped 4H-SiC by the formation and viscous flow of SiO2. Nitrogen doping assists the atomic diffusion and crack healing of 4H-SiC, while vanadium doping hinders the healing process. The padding of glassy SiO2 is found to effectively recover the bending strength of indented 4H-SiC samples.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Lei Yang, Yuxuan Fan, Xiang Lv, Houwei Pang, Shuai Yuan, Xuegong Yu, Dongsheng Li, Deren Yang
Summary: This work investigates the influence of erbium (Er) doping on the SiNxOy/c-Si interface, and found that activated Er3+ ions can result in a higher positive charge density, leading to band bending and deeper depletion regions. Through deep-level transient spectroscopy (DLTS), a higher density of interface states and wider energy distribution were observed in the Er-doped samples. Energy dispersive X-ray spectroscopy (EDX) analysis further supports the interaction between Er impurities and intrinsic defects at the interface.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Multidisciplinary Sciences
Shengxuan Wang, Hao Cui, Sijia Jin, Xiaodong Pi, Haiyan He, Chunhui Shou, Deren Yang, Lei Wang
Summary: A new anti-reflection strategy is proposed in this study, using soft nanoimprint lithography to prepare textured structures on the outside of SiNx films. Experimental results show that these textured structures have wide spectrum anti-reflection performance.
Article
Chemistry, Multidisciplinary
Sheng'ou Lu, Hongyu Chen, Wei Hang, Rong Wang, Julong Yuan, Xiaodong Pi, Deren Yang, Xuefeng Han
Summary: The effect of nitrogen doping on dislocation proliferation in SiC crystals was investigated. The thermal field and thermal stress during PVT growth were calculated, and the dislocation density was calculated based on the Alexander-Haasen model. By comparing the calculation and experimental results, a possible value of effective stress was proposed to evaluate the effect of nitrogen doping on dislocation density in n-type SiC.
Article
Chemistry, Multidisciplinary
Ningkang Qian, Degong Ding, Liang Ji, Junjie Li, Hui Zhang, Deren Yang
Summary: In this study, three types of core-shell nanocrystals, Au73Pd27@Pt, Au66Pd34@Pt, and Pd@Pt, were successfully constructed using lattice engineering. The strain effect and ligand effect caused by Au were found to enhance the activity of Pt in the electrocatalytic CO2 reduction reaction (EOR). In situ FTIR studies confirmed that the EOR processes on these nanocrystals were dominated by the C2 pathway, which explained the enhancement of EOR activity by the faster kinetics of the C2 pathway producing acetate or acetaldehyde.
Article
Materials Science, Multidisciplinary
Lin Zhang, Hongjun Li, Yu Yang, Deren Yang, Yuanjing Cui, Guodong Qian
Summary: In this study, a host-guest metal-organic framework (MOF) material was prepared to switch between second-harmonic generation (SHG) and two-photon-pumped (TPP) lasing in a single crystal. The use of specific alignment of nonlinear optical (NLO) building units allowed for the observation of polarized SHG and TPP lasing in a single crystal. These findings contribute to a better understanding of polarized NLO responses in MOFs and provide a new perspective for the development of versatile switching NLO materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Huabao Shang, Deren Yang, Dongsheng Li
Summary: We prepared high-intensity luminescent films by doping lithium, which enhances the near-infrared and up-conversion luminescence of erbium silicate by regulating the lattice structure. This method could be universally applicable to enhance luminescence in erbium compounds.
Article
Chemistry, Multidisciplinary
Xiao Li, Ningkang Qian, Liang Ji, Xingqiao Wu, Junjie Li, Jingbo Huang, Yucong Yan, Deren Yang, Hui Zhang
Summary: In this study, a novel Ce-doped Bi2O3 nanosheet electrocatalyst was prepared by a facile solvothermal method for efficient electrochemical CO2 reduction to formate. The Ce-doped Bi2O3 nanosheets exhibited high current density and formate faradaic efficiency. Density functional theory calculations revealed that Ce doping promoted the formation and adsorption of the OCHO* intermediate and inhibited the hydrogen evolution reaction, resulting in high current density and efficiency.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Jingbo Huang, Liang Ji, Xiao Li, Xingqiao Wu, Ningkang Qian, Junjie Li, Yucong Yan, Deren Yang, Hui Zhang
Summary: A seed-mediated approach was developed for the synthesis of PdSn alloy octopods with precisely controlled branches and tunable compositions. These octopod catalysts demonstrated significantly enhanced catalytic activity and stability for ethanol oxidation reaction, providing a promising avenue for the commercialization of direct ethanol fuel cells.
Article
Materials Science, Multidisciplinary
Hailong Wu, Lijia Yao, Wenqian Cao, Yu Yang, Yuanjing Cui, Deren Yang, Guodong Qian
Summary: Lead-halide perovskite nanocrystals (PeNCs) have attractive optical properties, and a host-guest system was constructed by encapsulating PeNCs in a metal-organic framework (MOF) to adjust their properties and enhance their stability and tunability.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
