Article
Engineering, Chemical
Xiao-Dong Qiao, Xin-Yu Ye, Yang-Hong Wu, Li-Jiao Ma, Bing-Xin Lei, Zhen-Fan Sun
Summary: Different TiO2 mesoporous structures, including core-shell spheres (CCSs) and micro-tubes (MTs), were successfully synthesized through adjusting the pH of the solution. The TiO2 CSSs and TiO2 MTs showed excellent specific surface area and light scattering properties. Dye-sensitized solar cells fabricated using these structures achieved efficiencies of 9.24% and 9.60%, respectively.
ADVANCED POWDER TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(2021)
Review
Chemistry, Inorganic & Nuclear
Anees A. Ansari, M. K. Nazeeruddin, Mohammad Mahdi Tavakoli
Summary: The article discusses the application of UCNPs in DSSCs, including energy transfer, morphology, crystal structure, coupling, and ways to increase photovoltaic current. The factors influencing emission efficiency and photovoltaic current are also explained. Additionally, it is proposed that UCNPs and their surface functionalities significantly enhance photovoltaic current, offering a beneficial guide for the use of lanthanide-doped UCNPs in material synthesis and optoelectronic system construction.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Tobias Luchs, Anna Zieleniewska, Andreas Kunzmann, Peter R. Schol, Dirk M. Guldi, Andreas Hirsch
Summary: This study introduces newly designed dye layers for covalent deposition and non-covalent post-functionalization of TiO2 nanoparticle films. The addition of a second layer of porphyrin/BODIPY significantly increases the overall efficiency of dye-sensitized solar cells.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Xugeng Guo, Wenpeng Wu, Yuanyuan Li, Jinglai Zhang, Li Wang, Hans Agren
Summary: Upconversion technology has been increasingly used in solar cells to improve efficiency by harvesting infrared light from the sun. Research has focused on fundamental principles of upconversion, with techniques like incorporating upconverting nanophosphors directly into photoanodes and introducing plasmonic metal nanoparticles showing promising results. Other methods such as utilizing microlenses and organic IR antennas for field enhancement have also been explored.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Siqi Zhang, Fuhua Huang, Xugeng Guo, Ye Xiong, Yafei Huang, Hans Agren, Li Wang, Jinglai Zhang
Summary: We have developed a new strategy to create a multifunctional composite photoanode consisting of TiO2 hollow spheres (TiO2-HSs), Au nanoparticles (AuNPs), and novel NaYF:Yb,Er@NaLuF:Eu@SiO2 upconversion nanoparticles (UCNPs). By growing AuNPs on the photoanode film, including TiO2-HSs and UCNPs, through a simple in situ plasmonic treatment, we achieved an impressive power conversion efficiency of 14.13%, which is a record for N719 dye-based dye-sensitized solar cells. This remarkable enhancement is attributed to the collaborative mechanism of TiO2-HSs, UCNPs, and AuNPs, which exhibit excellent light-scattering ability, convert near-infrared photons into visible photons, and present outstanding surface plasmon resonance effect, respectively. Moreover, the champion cell showed a retention efficiency of 95.33% even after 180 hours of measurements, indicating good device stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Fuchen Chu, Bingcheng Sun, Bairui Tao, Peng Zhang, Yu Zang, Paul K. Chu
Summary: This study presents the design and fabrication of a photoanode composed of Au/SnS/TiO2 sensitized with natural dye for dye-sensitized solar cells (DSSCs). By calcination, a layer of spherical nano-TiO2 is prepared, and a layer of nano-SnS is deposited on the TiO2 photoanode using the continuous ion layer adsorption reaction (SILAR). The sensitized Au nanoparticles exhibit enhanced localized surface plasmon resonance (LSPR) effects and electron trapping ability, resulting in improved electron mobility and reduced electron recombination in the DSSC.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Chaoqiang Liao, Kaiwen Zeng, Hanlun Wu, Qingliang Zeng, Hao Tang, Lingyun Wang, Herbert Meier, Yongshu Xie, Derong Cao
Summary: The use of pillar[5]arene dyes can enhance the open-circuit voltage of DSSCs, while also inhibiting dye aggregation and charge recombination, leading to improved performance. Additionally, host-guest interactions with the electrolyte can further adjust the voltage and photocurrent of the DSSCs.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Kalpana Deevi, Venkata Subba Reddy Imma Reddy
Summary: Zinc Stannate (Zn2SnO4) nanoparticles were successfully synthesized via solvothermal method, displaying a face centered cubic spinel structure with an average size of 20 nm. When utilized in semi-transparent dye sensitized solar cells, the photoconversion efficiency of these Zn2SnO4-based photoanodes reached 0.86%.
Article
Energy & Fuels
Tansir Ahamad, Ali Aldalbahi, Saad M. Alshehri, Salem Alotaibi, Shaykha Alzahly, Zhen-Bo Wang, Peter X. Feng
Summary: Hierarchical bismuth ferrite (BFO) and Ag2O-doped bismuth ferrite (Ag2O/BFO) nanostructures were successfully fabricated in this study and applied in the photoanode of dye-sensitized solar cells (DSSCs) with improved energy conversion efficiency. Doping BFO with silver oxide nanoparticles can enhance electron transportation and reduce photogenerated charge recombination, making it a potential candidate for working electrode materials in DSSCs.
Article
Materials Science, Multidisciplinary
Chun-Hao Chang, Chia-Han Chuang, De-Yang Zhong, Jun-Cheng Lin, Chia-Chi Sung, Chun-Yao Hsu
Summary: This study focused on enhancing the optoelectronic performances of dye sensitized solar cells (DSSC) by mixing acetylacetone, graphene powder and TiO2 mesoporous. The addition of graphene and optimization of parameters led to improvements in efficiency and performance of DSSCs. Using a different substrate material also resulted in increased photovoltaic efficiency.
Article
Energy & Fuels
Sabine Josten, Tillmann Koehler, Frank Marlow
Summary: Light-weight dye-sensitized solar cells were successfully fabricated on stainless steel meshes made of different materials, showing a voltage shift and hysteresis in the J-V characteristics. A large capacitance of 171 mu F/cm2 was found to describe this effect, with only small differences identified between the stainless steel types used for the mesh.
Review
Chemistry, Inorganic & Nuclear
Garima Dwivedi, Guncha Munjal, Ashok N. Bhaskarwar, Amita Chaudhary
Summary: This paper reviews the feasibility of using polyaniline and its composites as a counter-electrode catalyst in dye-sensitized solar cells (DSSCs), as well as its applications as a hole conductor and catalyst for photosensitized electrolytes. It also discusses the efficiency of polyaniline-based solar cells and the recent advances in using it as a suitable replacement for platinum.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
K. Gunasekaran, S. Athithya, M. Navaneethan, S. Harish, J. Archana
Summary: A novel two-dimensional hexagonal mesoporous nickel oxide and titanium substituted nickel oxide nanosheets were synthesized and used as counter electrodes in dye-sensitized solar cells, showing excellent electrochemical and photovoltaic performance. The high performance of nickel oxide-based and 1-TNO-based counter electrodes can be attributed to the high specific surface area and mesoporous nature of the nanosheet structure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
K. B. Bhojanaa, A. Pandikumar
Summary: The enhancement of the photovoltaic performance of BSO photoanode based DSSCs was achieved by interconnecting BSO nanoparticles with titania, resulting in improved charge transfer and reduced recombination of electron-hole pairs. The TBSO photoanode exhibited significantly higher power conversion efficiency, electron lifetime, and charge collection efficiency compared to pristine BSO photoanode in DSSCs.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Dong Xie, Kai Li, Jun Yang, Dong Yan, Lichao Jia, Bo Chi, Jian Pu, Jian Li
Summary: The perovskite cathode material La-0.5(Ba0.75Ca0.25)(0.5)Co0.8Fe0.2O3-delta, with high electrical conductivity and catalytic activity, was used in proton-conducting solid oxide fuel cells. When combined with the electrolyte BaZr0.1Ce0.7Y0.1Yb0.1O3-delta, it showed excellent electrochemical performance, low polarization resistance, and high peak power density. The oxygen reduction reaction was found to be limited by oxygen adsorption, dissociation, and diffusion processes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Nanoscience & Nanotechnology
Peng Qu, Xin Yang, Wanhua Wang, Tong Wei, Yanying Lu, Jie Lin, Zhihao Yuan, Lichao Jia, Jian Li, Fanglin Chen
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Xiaofeng Yang, Lichao Jia, Bicai Pan, Bo Chi, Jian Pu, Jian Li
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Applied
Yunfeng Tian, Yun Liu, Wenjie Wang, Lichao Jia, Jian Pu, Bo Chi, Jian Li
JOURNAL OF ENERGY CHEMISTRY
(2020)
Article
Chemistry, Physical
Xin Yang, Peng Qiu, Nansheng Xu, Lichao Jia, Lei Alexander Zhang, Kevin Huang
Summary: This study focuses on developing a chromium-free, easy-to-manufacture, and low-cost ceramic interconnect. Through optimizing compositions, examining compatibility, fabricating bilayer structure, and testing performance, SYTN (Y0.08Nb0.02) is identified as the best composition for the interconnect. The bilayer ceramic IC shows high conductivity and dense microstructure, making it a promising candidate for next-generation durable and low-cost tubular SOCs.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Jiaqi Geng, Zhenjun Jiao, Dong Yan, Lichao Jia, Jian Pu, Jian Li
Summary: The evolution of solid oxide fuel cell anode microstructure during operation, including Ni migration and Ostwald ripening, has been found to affect pore structure, concentration polarization, and ultimately electrochemical performance. This impact was revealed through evaluations with various microscopy techniques and electrochemical tests such as Electrochemical Impedance Spectrum and Distribution of Relaxation Time analysis.
JOURNAL OF POWER SOURCES
(2021)
Review
Chemistry, Physical
Minghan Xu, Hao Xue, Qingfu Wang, Lichao Jia
Summary: Proton exchange membrane fuel cells (PEMFCs) are potential clean energy sources attracting attention, with a focus on developing high-performance, low-cost PEMs to replace benchmark Nafion membranes. Sulfonated poly(arylene ether ketone)s (SPAEKs) and sulfonated poly(arylene ether sulfone)s (SPAESs) are promising candidates due to their performance and cost advantages. Efforts are classified and introduced in developing SPAEK and SPAES membranes for promising research directions in the field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Qihao Li, Xin Wang, Chenzhao Liu, Xinwei Yang, Cheng Li, Lichao Jia, Jian Li
Summary: This study developed a new Ni@CNO catalyst with reduced carbon deposition and increased hydrogen production for use in solid oxide fuel cells (MS-SOFCs). The results showed that it has great potential when used as a catalyst in MS-SOFCs.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Chemical
Wen Peng, Zongbao Li, Bo Liu, Peng Qiu, Dong Yan, Lichao Jia, Jian Li
Summary: A nickel catalyst supported by perovskite PrCrO3-delta was developed, which exhibited high conversion rates and excellent stability due to a few Ce doping. It was found that surface oxygen vacancies played a crucial role in suppressing carbon deposition and improving the stability of the catalyst. This strategy provides a potential solution for the efficient conversion of low calorific value fuels.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Xiaojun Shi, Juwei Du, Lichao Jia, Yansheng Gong, Jun Jin, Huanwen Wang, Rui Wang, Ling Zhao, Beibei He
Summary: A MnCo-based metal organic framework-derived heterogeneous MnS-CoS nanocrystals anchored on free-standing porous N-doped carbon fibers (PNCFs) by the in situ growth method and vulcanization process exhibit remarkable oxygen electrocatalytic activity and stability. The flexible rechargeable Zn-air battery using this composite as binder-free air cathode offers high power density and large specific capacity, and adapts to different bending degrees of operation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Electrochemistry
Wenying Zhang, Shijing Wu, Lin Chen, Jiale Liu, Lichao Jia, Dong Yan, Li Jian
Summary: Two Co-alloy-coated steels with different manganese contents underwent thermal exposure in air for 1000 hours. The oxidation rate of the coated steels increased with higher manganese content. The Co coating transformed into a three-layer structure during thermal exposure, containing Cr-rich oxide, mixed oxide with Co, Fe, Mn, and Cr, and doped Co3O4 spinel oxide. The Co-coated steel with 1.0 wt% Mn showed lower area specific resistance and slower increase in polarization resistance compared to the uncoated alloy, indicating effective inhibition of outward diffusion of Cr and prevention of cathode poisoning.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Wenying Zhang, Ruyu Shi, Lin Chen, Dong Yan, Chunyan Zang, Lichao Jia
Summary: In this study, metallic Co composite coatings with CeO2, La2O3, and Y2O3 reactive element oxides were prepared on Fe-17Cr alloys by electroplating for solid oxide fuel cell interconnect applications, followed by cyclic oxidation. The results showed that all three composite coatings significantly enhanced the oxidation resistance of the substrate alloy at high temperatures, with no further migration of chromium in the coating region. Among the three coatings, the Co/CeO2 coating showed the best performance after 500 hours of oxidation, exhibiting the slowest oxidation rate and the lowest area specific resistance.
Review
Chemistry, Multidisciplinary
Bo Liu, Chenzhao Liu, Xiaowei Zou, Dong Yan, Jian Li, Lichao Jia
Summary: Protonic ceramic fuel cells have the potential for practical applications due to their high efficiency, low emissions and fuel flexibility. However, the proton uptake capacity and the conductivity of electrolyte and cathode materials limit their output performance. This review summarizes the methods used to detect proton concentration and distribution, and discusses the impact of the proton environment on its transport.
RUSSIAN CHEMICAL REVIEWS
(2022)
Article
Chemistry, Physical
Bo Liu, Zongbao Li, Xinwei Yang, Dong Yan, Jian Li, Lichao Jia
Summary: The double perovskite material PBKFZ has been designed and synthesized as a new cathode for proton-conducting solid oxide fuel cells. The effects of K-doping on various properties have been investigated, and it has been found that K doping improves thermal expansion behavior and proton uptake capacity. A single cell with the PBKFZ cathode exhibits excellent electrochemical performance compared to the cell with the pristine PBFZ cathode.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Tong Wei, Xueyan Pan, Shuohao Wang, Peng Qiu, Xiangbowen Du, Bo Liu, Ziling Wang, Lichao Jia
Summary: The introduction of Ce improved the reducibility and oxygen transfer of La0.9Mn0.8Ni0.2O3, facilitating higher levels of reduction and ensuring the structural stability and catalytic activity of LCMN-05.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
