Article
Materials Science, Multidisciplinary
Shuai Wu, Xi Xu, Xiaomei Li, Lei Bi
Summary: The Sr and Zn co-doped LaMnO3 (LSMZ) cathode demonstrates superior performance and stability in proton-conducting solid oxide fuel cells (H-SOFCs), outperforming all reported LSM-based H-SOFCs; LSMZ is stable against CO2 and exhibits good long-term stability, paving a new way for research on intermediate temperature SOFC cathodes.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Hirotatsu Watanabe, Teppei Ogura
Summary: The carbon deposition mechanisms at the Ni/YSZ interface were investigated through observation and calculation, revealing the influence of vacancy configuration and CH-CH bonding barrier on the occurrence and stability of carbon deposition.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yinghua Niu, Weirong Huo, Yuandong Yu, Wenjun Li, Yulin Chen, Weiqiang Lv
Summary: To lower the operating temperature and increase the durability of solid oxide fuel cells (SOFCs), there is increasing attention on developing cathode materials with good oxygen reduction reaction (ORR) activity in the intermediate temperature range (500-750 degrees C). Infiltrating catalysts on existing backbone materials has been proven to be an efficient method for constructing highly active and durable cathodes.
CHINESE CHEMICAL LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Zhou Yongjun, Lu Zhe, Xu Shifeng, Yang Xu, Xu Dan
Summary: Solid oxide fuel cell (SOFC) is a promising clean energy technology with broad fuel sources and high energy conversion efficiency. The focus of current research is to reduce the working temperature and optimize cathode materials for oxygen reduction reaction. First principles provide a powerful tool for understanding reaction mechanisms and guiding the design of high-performance SOFC cathode materials.
RARE METAL MATERIALS AND ENGINEERING
(2023)
Article
Engineering, Chemical
Chaoqun Li, Zhenyu He, Xiaokuan Ban, Naizhi Li, Chusheng Chen, Zhongliang Zhan
Summary: The study successfully developed a new ethanol reforming process and achieved high ethanol conversion rate and selectivity in a membrane reactor. The experiment demonstrated that the membrane reactor has better heat management and syngas concentration control compared to traditional fixed bed reactors, making it suitable for ethanol pre-reforming in solid oxide fuel cells.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Review
Thermodynamics
Steven B. Beale, Martin Andersson, Carlos Boigues-Munoz, Henrik L. Frandsen, Zijing Lin, Stephen J. McPhail, Meng Ni, Bengt Sunden, Andre Weber, Adam Z. Weber
Summary: Solid oxide cells are a promising technology for energy conversion, capable of converting hydrogen-rich fuels into electrical energy or storing energy from transient resources. To compete in the market, improving reliability, extending product lifecycles, and reducing costs are essential. Mathematical models provide insights into physical phenomena and performance, but accurate parameterization and validation through experimental methods are crucial for model reliability.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2021)
Article
Chemistry, Physical
Md Shafiqul Islam, Shuo Wang, Alex T. Hall, Yifei Mo
Summary: Researchers used first-principles computational methods to study a wide range of ternary oxide materials in order to identify new proton conductor materials with high conductivity and stability. The results revealed the influence of cation species and mole fraction on water stability and hydrogen insertion capability, and identified several oxide materials with good water stability and fast proton diffusion.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Chen Zhang, Ting Wu, Wen-zhi Xia, Qian Wang, Zhi-you Liao, Hai-chuan Wang
Summary: The influence mechanism of 8 mol% alkaline oxides on the structure characteristics of aluminate slag was analyzed by first-principles calculation. The addition of alkaline oxides improved the stability of Al-O and Ca-O bonds and affected the average coordination number of Al. Alkaline cations played a key role in structure depolymerization and charge compensation. Adding appropriate amount of Na2O/BaO was important for regulating low/non-reactive mold flux.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Davin Jeong, Yonghyun Lim, Hyeontaek Kim, Yongchan Park, Soonwook Hong
Summary: This study demonstrated the use of a silver and samarium-doped ceria (SDC) mixed ceramic and metal composite as a cathode for low-temperature solid oxide fuel cells (LT-SOFCs). The ratio between Ag and SDC, which can be adjusted by the co-sputtering process, was found to be crucial for catalytic reactions and enhanced triple phase boundary (TPB) density in the nanostructure. The Ag-SDC cermet cathode not only improved the performance of LT-SOFCs by decreasing polarization resistance, but also showed higher catalytic activity than platinum (Pt) due to the improved oxygen reduction reaction (ORR). It was discovered that even a small amount of Ag content was effective in increasing TPB density while preventing oxidation of the Ag surface.
Article
Chemistry, Physical
Hao Wu, Jie Xiao, Senran Hao, Runjie Yang, Peng Dong, Lina Han, Mian Li, Fangyong Yu, Yongmin Xie, Jiao Ding, Yingjie Zhang
Summary: The study demonstrates that utilizing kelp biochar as fuel in DC-SOFC shows superior performance compared to traditional activated carbon and catalyst-loaded activated carbon fuels, offering a promising pathway for alternative biomass utilization in DC-SOFCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Kittiwat Kamlungsua, Tsung-Han Lee, Suhan Lee, Pei-Chen Su, Yong-Jin Yoon
Summary: The work demonstrates the superior thermostability of silver-based nanoparticle cathodes under continuous solid oxide fuel cell operation by coating the samarium-doped ceria (SDC) thin shell over silver nanoparticles. The use of Ag@SDC nanoparticle cathode significantly reduces current degradation in the fuel cell after 25 hours of operation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
Ximu Chen, Kazuaki Toyoura, Naoyuki Hatada, Tetsuya Uda
Summary: In this study, the proton conduction mechanism in sodium tantalite with an orthorhombic perovskite structure was investigated using first-principles calculations. It was found that the tilting structure of the crystal led to interoctahedral hopping, which accelerated proton migration. Additionally, the calculated proton conductivity agreed well with the experimental results after considering the effect of dopants.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Engineering, Chemical
Zhengyun Zhang, Lichuan Deng, Xiaolong Zhou
Summary: Density functional theory was used to investigate the adsorption behavior of fluoride molecules on pure, Co-doped and Pd-doped Ag(1 1 1) surfaces. Different adsorption behaviors were observed due to lattice change and charge transfer caused by doping. The adsorption energy, bond length, bond angle, Mulliken charge population, and charge density difference were analyzed. The research provides theoretical guidance for the design of efficient gas pollutant adsorption surfaces.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Physical
Sea-Fue Wang, Yi-Le Liao, Yung-Fu Hsu, Piotr Jasinski
Summary: Three low-temperature solid oxide fuel cells with different electrode configurations were compared, with Ni particles enhancing catalytic activity and Ni-Ag electrodes leading to low TPB areas. These factors impact the maximum power density of the cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Weihua Jia, Zhuonan Huang, Wen Sun, Le Wu, Lan Zheng, Yuqi Wang, Jianbing Huang, Xin Yang, Ming Lv, Lei Ge
Summary: In this study, Bi doping was found to be effective in improving the cathode materials for IT-SOFCs by enhancing oxygen vacancy generation energy and promoting electrochemical performance. The Bi3+ doping in LBSCFx cathode materials can accelerate oxygen transportation and increase oxygen reduction reaction sites, leading to significantly reduced polarization resistance and activation energy, ultimately improving the power density of the anode-supported single cells.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)