Article
Materials Science, Multidisciplinary
Wan-Yu Lyu, Wei-Di Liu, Meng Li, Xiao-Lei Shi, Min Hong, Tianyi Cao, Kai Guo, Jun Luo, Jin Zou, Zhi-Gang Chen
Summary: Doping of the rare-earth element Lu can enhance the thermoelectric performance of GeTe by strengthening phonon scattering and suppressing lattice thermal conductivity. Co-doping of Lu and Sb further optimizes the carrier concentration and leads to improved electrical and thermal properties. This study highlights the potential of Lu and Sb co-doping for boosting the thermoelectric performance of GeTe-based materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Jeongmo Kim, Reinaldo Chacon, Zijun Wang, Eric Larquet, Khalid Lahlil, Aymeric Leray, Gerard Colas-des-Francs, Jongwook Kim, Thierry Gacoin
Summary: The authors present a novel method to retrieve the three-dimensional orientation of luminescent, lanthanide-doped nanorods from a single-shot emission spectrum, eliminating the need for complicated optical setups typically required to determine the orientation of nanoscale objects in three-dimensional space.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Peng Wang, Jinfeng Lin, Xiao Wu, Chunlin Zhao, Min Gao, Cong Lin, Qiwei Zhang
Summary: This study reports a type of sodium niobate translucent ceramics with a completely self-recoverable photochromic effect, without the need for external physical field stimulation. By controlling rare earth doping and designing two types of materials, the ceramics are seen as suitable candidates for tracking light irradiation time and intelligent regulation of smart building materials.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Huaxing Zhu, Guiwen Wang, Guoyu Wang, Xiaoyuan Zhou, Xu Lu
Summary: Cu doping is found to be more favorable for the transport properties of InTe compared with Na doping and In-deficiency, as Cu can effectively weaken the Coulomb scattering for charge carriers. In the case of Cu-doped In0.99Cu0.01Te compound, a higher zT value is achieved, attributed to the enhanced carrier concentration and well-maintained mobility, showing more than 35% enhancement compared to Na-doped and self-doped compounds.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Optics
Ananya Rout, Sadhana Agrawal
Summary: This paper presents luminescence studies and first principle calculations of a rare earth doped yttrium strontium silicate fluorapatite compound. The experimental characterization confirms the crystal structure and Raman active modes of the synthesized compound. The compound exhibits strong luminescence under UV excitation, and its computational analysis reveals semiconductor behavior and high covalency.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Environmental
Wan-Yu Lyu, Wei-Di Liu, Meng Li, Min Hong, Kai Guo, Jun Luo, Juanjuan Xing, Qiang Sun, Shengduo Xu, Jin Zou, Zhi-Gang Chen
Summary: This study comprehensively investigates the effect of rare earth element substitutions on the thermoelectric performance of GeTe. It is found that rare earth element substitutions enhance the Seebeck coefficient, reduce lattice thermal conductivity, and improve the dimensionless figure of merit. These findings indicate that rare earth elements can be effective dopants in GeTe to enhance its thermoelectric properties.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Physics, Condensed Matter
Shahid Mehmood, Zahid Ali, Reem Altuijri, Lamia Abu El Maati, Shah Rukh Khan, S. V. Trukhanov, T. I. Zubar, M. I. Sayyed, D. I. Tishkevich, A. V. Trukhanov
Summary: This study investigates the structural, optoelectronic, and thermoelectric properties of rare earth Zintls Ca3RESb3 (RE = La, Ce and Pr). The results indicate that these compounds exhibit direct bandgap semiconductor characteristics and can be used in optoelectronic devices. They also show potential as effective thermoelectric materials.
PHYSICA B-CONDENSED MATTER
(2023)
Review
Optics
Zong-Quan Zhou, Chao Liu, Chuan-Feng Li, Guang-Can Guo, Daniel Oblak, Mi Lei, Andrei Faraon, Margherita Mazzera, Hugues de Riedmatten
Summary: An optical quantum memory is a device that can store and release photonic quantum information. It is crucial for mitigating channel losses in large-scale quantum networks. Different physical systems such as atomic gases, single atoms in optical cavities, and rare-earth-ion doped solids have been used for realizing optical quantum memories. The focus is now on miniaturization and integration of quantum memories for practical applications in quantum networks, with solid state systems being a favored choice due to their stability and ease of fabrication.
LASER & PHOTONICS REVIEWS
(2023)
Article
Engineering, Environmental
Chencheng Sun, Fanjun Kong, Lele Fan, Shi Tao, Guikai Zhang, Shengqi Chu, Wangsheng Chu, Li Song
Summary: This study investigates the heteroatom-doped engineering for tailoring the electronic structure of N-doped carbon. It demonstrates a N/P dual-doped hard carbon material with improved electronic conductivity and expanded interlayer spacing, resulting in enhanced cycling stability and rate capability for sodium-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Tianxin Zhang, Rundong Wan, Yuzhong Guo, Al Jumlat Ahmed, Ying Lei, Guocai Tian
Summary: This study investigates the thermoelectric properties and influencing factors of doped SrTiO3. Experimental results show that by changing the radius of the dopant, the thermoelectric performance of the material can be optimized. In addition, the doped compound exhibits the characteristics of half-metallic and half-semiconductor at different temperatures.
Article
Chemistry, Physical
Xuemin Bai, Yuqing Sun, Fang Yu, Jian Liu, Lanling Zhao, Chun-ming Wang, Ruomeng Huang, Shengqing Xia, Jichao Li
Summary: The thermoelectric properties and transport mechanism of Cu0.5In0.5Cr2Se4 and its Zn-doped samples were studied. The Zn doping effectively improved the power factor and thermal conductivity of the material, enhancing the ZT value and further optimizing the thermoelectric performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Shuyao Li, Junhua Jiang, Zheng Ma, Yanqun Chen, Lanwei Li, Jianli Wang, Chao Wang
Summary: Er-doped Bi0.46Sb1.54Te3 bulk materials were successfully synthesized, with Er doping enhancing carrier mobility and concentration to improve electrical transport properties. The introduction of dispersed secondary phase nanoparticles and pores by Er doping also decreased lattice thermal conductivity, leading to a maximum ZT value of 1.21 at 350 K for the Er-x(Bi0.23Sb0.77)(2-x)Te-3 (x = 0.02) sample.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Bin Su, Zhanran Han, Yilin Jiang, Hua-Lu Zhuang, Jincheng Yu, Jun Pei, Haihua Hu, Jing-Wei Li, Yu-Xiao He, Bo-Ping Zhang, Jing-Feng Li
Summary: In this work, it is discovered that rare earth elements can effectively serve as dopants for SnSe, greatly improving the electrical transport properties of p-type polycrystalline SnSe. Particularly, significant enhancement in electrical conductivity and power factor is achieved by Na/Er co-doping at 873 K. The lattice thermal conductivity is reduced due to the presence of abundant defects (dislocations, stacking faults, and twin boundaries). As a result, a peak thermoelectric figure of merit ZT (2.1) as well as a high average ZT (0.77) are achieved in polycrystalline SnSe.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biotechnology & Applied Microbiology
Astita Dubey, Soma Salamon, Supun B. Attanayake, Syaidah Ibrahim, Joachim Landers, Marianela Escobar Castillo, Heiko Wende, Hari Srikanth, Vladimir V. Shvartsman, Doru C. Lupascu
Summary: Ionic engineering is used to substitute rare-earth elements in BiFe0.95Mn0.05O3 NPs, resulting in morphological changes and improved piezoresponse and magnetic hyperthermia potential. The increment in magnetization has an impact on the hyperthermia results.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Duarte Moco, Jose F. Malta, Luis F. Santos, Elsa B. Lopes, Antonio P. Goncalves
Summary: In the search for new thermoelectric materials, tetrahedrite mineral has shown potential due to its abundance, low toxicity, and good thermoelectric performance. However, improvement in its performance is needed to make it a suitable alternative. This project explores the effects of simultaneous doping with nickel and selenium in tetrahedrite's thermoelectric properties, achieving high power factor and zT values. Further improvements may be possible by addressing detrimental factors such as grain boundaries and disorder.
Article
Materials Science, Textiles
Linghui Peng, Lingling Shen, Weiren Fan, Zichuan Liu, Hongbo Qiu, Aibing Yu, Xuchuan Jiang
Summary: The importance of outdoor thermal comfort due to climate change has led to the development of a smart thermal management film with an Ag/VO2/Ag sandwich structure. This film can reduce temperature by around 10 degrees C under intense infrared radiation and has potential applications in wearable devices, flexible electronics, medical monitors, and smart IR radiation management.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Metallurgy & Metallurgical Engineering
Siddhartha Shrestha, Jin Xu, Aibing Yu, Zongyan Zhou
Summary: FLDS technology can effectively reduce fuel consumption and improve the quality of sintered products by evenly distributing heat patterns. Air velocity and bed height have significant influences on the operation, and sensitivity analysis can provide guidance for FLDS operation.
IRONMAKING & STEELMAKING
(2022)
Article
Engineering, Chemical
Qinwen Liu, Wenqi Zhong, Aibing Yu, Chi-Hwa Wang
Summary: With the improvement of the models for oxy-fuel co-firing, the adaptability of the models to the oxy-fuel atmosphere can be enhanced, and the accurate prediction of NO, N2O, SO2 emissions can be achieved. This study also provided valuable information for the design and operation control of oxy-fuel co-firing of coal and biomass in a fluidized bed.
Article
Energy & Fuels
Dianyu E, Peng Zhou, Suya Guo, Jia Zeng, Qiang Xu, Liejin Guo, Qinfu Hou, Aibing Yu
Summary: This study employed a multiscale method to investigate the evolution, microscale characteristics, coke temperature, and combustion in the raceway of a blast furnace under different operating conditions. The results showed consistent distributions of coke temperature, carbon loss, and diameter variation, and the carbon monoxide concentration was influenced by the oxygen concentration but not by changes in the inlet gas temperature and flow rate.
Article
Energy & Fuels
Lingling Liu, Shibo Kuang, Lulu Jiao, Baoyu Guo, Aibing Yu
Summary: This study presents a numerical investigation on the effects of pulverized coal injection (PCI) in an industrial blast furnace. The results show that appropriate oxygen enrichment and suitable burden distribution can enhance the maximum operable PCI rate, while excessive oxygen enrichment increases coke consumption. The integrated model used in this study can serve as a cost-effective tool to optimize PCI effects on blast furnace performance.
Article
Engineering, Chemical
Kaiwei Chu, Yanxing Chen, Li Ji, Zongqing Zhou, Aibing Yu, Jiang Chen
Summary: This study presents a numerical investigation of gas-solid flow in a gas cyclone using a coarse-grained combined Discrete Element Method (DEM) and Computational Fluid Dynamics (CFD) model. The results demonstrate that the model captures the typical flow features in a gas cyclone and highlights the importance of including the van der Waals force for accurate separation efficiency prediction.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Energy & Fuels
Jing Li, Shibo Kuang, Lulu Jiao, Lingling Liu, Ruiping Zou, Aibing Yu
Summary: The study investigates the impact of hydrogen enrichment on a blast furnace, finding that as hydrogen content increases, the coke rate initially decreases before increasing, and productivity improves but slows down gradually. The optimal hydrogen enrichment can be determined based on the minimum coke rate. Overall, hydrogen enrichment enhances the energy efficiency of the blast furnace.
Article
Engineering, Chemical
Jieqing Gan, Zongyan Zhou, Aibing Yu, Dean Ellis, Reece Attwood, Wei Chen
Summary: Multibody dynamics (MBD) simulation is a useful tool for analyzing the kinematic function of multibody systems, while discrete element method (DEM) is commonly used for simulating particle flows and overall processes. Combining MBD and DEM methods through functional mock-up interface (FMI) co-simulation can predict equipment performance by considering both material and equipment behavior. This study utilized Dymola software to perform MBD and FMI co-simulations, developing MBD models for a hydraulic excavator system and GPU-based DEM models for excavator digging cycles. The results demonstrated the significant impact of solid materials on excavator movement.
Article
Engineering, Chemical
Lingling Liu, Shibo Kuang, Baoyu Guo, Aibing Yu
Summary: Optimization of ironmaking blast furnaces involves considering bottom and top operations. A recently developed integrated BF model and numerical orthogonal experiments are used to predict BF performance indicators and conduct multi-objective optimization and operatable zone identification.
CHEMIE INGENIEUR TECHNIK
(2023)
Article
Energy & Fuels
Lingling Liu, Shibo Kuang, Baoyu Guo, Aibing Yu
Summary: Oxygen blast furnace (OBF) is a low carbon ironmaking technology that suffers from high gas flame temperature. Injecting COREX off-gas (CROG) into the industrial BF can improve coal combustion and overall performance. The optimum injection rate of CROG helps achieve better fuel economy by enhancing indirect reduction and coke combustion.
Article
Engineering, Chemical
E. Dianyu, Haihan Fan, Zhongfang Su, Guangtai Xu, Ruiping Zou, Aibing Yu, Shibo Kuang
Summary: This paper proposes a hydrocyclone with a tapered inlet design to reduce the influence of particles misplacement. The new hydrocyclone integrates the advantages of both spiral inlet and tangential inlet. Through the analysis of separation performance, flow characteristics, and volume fraction distributions, an optimum design is identified. Compared to a standard hydrocyclone, the new design significantly improves tangential velocities, expands the locus of zero vertical velocity, and achieves more stable air core, symmetric radial and axial velocity distributions, as well as reduced eddy flow and short-circuit flow. This study offers a new perspective for improving hydrocyclone flows and performance.
Article
Chemistry, Multidisciplinary
Yang Zhang, Danjiao Zhao, Lei Cao, Lanlan Fan, Aiping Lin, Shufen Wang, Feng Gu, Aibing Yu
Summary: Flexible strain sensors are crucial for public healthcare as they can noninvasively monitor vital health signals. In this study, we developed structurally integrated 3D conductive networks-based flexible strain sensors using a droplet-based aerosol jet printing process and a transfer process. The sensors showed enhanced conduction and mechanical properties during stretching, and demonstrated effective responses to human movements such as finger bending and arm bending. Our findings highlight the potential of droplet-based aerosol jet printing for advanced flexible devices in optoelectronics and wearable electronics applications.
Article
Engineering, Chemical
Yifan Qin, Xiao Dong Chen, Aibing Yu, Jie Xiao
Summary: Mathematical modeling of mass transfer and absorption in the small intestine is challenging and requires a reliable and computationally efficient predictive model. This study derives an absorption model that considers the 3D intestinal inner wall structure and can be used in a 1D distributed model. Computational fluid dynamics simulations are used to quantify the mass-transfer coefficient. The model provides insights into the influence of intestinal morphology and motility on mass transfer and absorption.
Article
Energy & Fuels
E. Dianyu, Peng Zhou, Langyong Ji, Jiaxin Cui, Qiang Xu, Liejin Guo, Aibing Yu
Summary: In this study, a validated CFD-DEM model is used to investigate the dynamics, microstructure, and thermochemical behaviors in the raceway of a blast furnace with hydrogen injection operations. The effects of hydrogen injection concentration on raceway size, gas temperature, and components are studied.
Article
Pharmacology & Pharmacy
Hao Miao, Ke Huang, Yingwen Li, Renjie Li, Xudong Zhou, Jingyu Shi, Zhenbo Tong, Zhenhua Sun, Aibing Yu
Summary: In this study, the LNP formulation, atomization methods, and buffer system were optimized to maintain stability and efficiency of mRNA encapsulated LNPs during the atomization process. A suitable LNP formulation for atomization, AX4, DSPC, cholesterol, and DMG-PEG2K at a 35/16/46.5/2.5 (%) molar ratio, was identified based on in vitro experiments. Soft mist inhaler (SMI) was found to be the most suitable method for pulmonary delivery of mRNA encapsulated LNPs. The physico-chemical properties of the LNPs, such as size and entrapment efficiency, were further improved by adjusting the buffer system with trehalose. In vivo fluorescence imaging of mice demonstrated the potential of SMI with proper LNPs design and buffer system for inhaled mRNA-LNP therapies.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)