Review
Chemistry, Multidisciplinary
Artem S. Belousov, Evgeny Suleimanov, Diana G. Fukina
Summary: Heterogeneous photocatalysis is considered an attractive alternative route for converting solar energy into chemical energy, with a focus on new materials sensitive to visible light. Pyrochlore oxides have shown promise as visible light-responsive photocatalysts due to their compositional flexibility and opportunities for enhancing electron/hole mobility, with recent progress in various applications and strategies for improving their photocatalytic activity.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ruhumuriza Jonathan, Shafiq Ur Rehman, Feng Cao, Hui Xu, Xuejuan Ma, Junwei Wang, Yifan Liu, Yinghua Niu, Xian Jian, Nasir Mahmood
Summary: Developing high-efficiency and low-cost visible light photocatalyst is challenging. This study developed a large-scale preparation of ultrafine TiO2@C hybrid visible light photocatalyst using ultra-low temperature air calcination method. The TiO2@C hybrids showed enhanced photocatalytic degradation performance for formaldehyde and methyl orange under visible light irradiation due to their novel structure with rich defect active sites and small band gap.
NANOTECHNOLOGY REVIEWS
(2023)
Article
Engineering, Chemical
M. Salehi Taleghani, N. Salman Tabrizi, P. Sangpour
Summary: A novel carbon-titanium dioxide hybrid aerogel reinforced by multi-walled carbon nanotubes was synthesized for photocatalytic degradation of organic pollutants from aqueous solutions under sunlight. The aerogel exhibited high photocatalytic activity and adsorption capacity.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Chemistry, Physical
Chaehun Lim, Ha-Rim An, Seongmin Ha, Seongjae Myeong, Chung Gi Min, Hea-Jong Chung, Byoungchul Son, Chang-Yeon Kim, Ji-In Park, Hyeran Kim, Hyun Uk Lee, Young-Seak Lee
Summary: We propose an underwater plasma method to produce nanoporous N-doped TiO2 (N-TiO2) photocatalysts with high reactivity in the visible light range. The unique energy input of this technology enables the synthesis, crystallization, doping, and porosity of TiO2 within minutes. The resulting N-TiO2 demonstrates a nanoporous structure with doped N atoms, which leads to narrow bandgap, effective charge-carrier separation, and enhanced light absorbing ability. The N-TiO2 photocatalysts exhibit efficient photocatalytic activities and excellent antibacterial ability, making them suitable for environmental and biomedical applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Prasenna John, Khairiraihanna Johari, Nirmala Gnanasundaram, Arunagiri Appusamy, Murugesan Thanabalan
Summary: A visible light-driven TiO2/gC(3)N(4) photocatalyst was synthesized for the photodegradation of diclofenac, resulting in significantly improved degradation efficiency. The maximum efficiency reached 93.49%, and the catalyst showed satisfactory recyclability. The reaction followed a pseudo-first-order kinetics and resulted in ten intermediates.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Biochemistry & Molecular Biology
Bingxin Mao, Cong Liu, Xu Cui, Yanhui Li, Qian Duan
Summary: A novel thermo-responsive photocatalyst was prepared by modifying a zinc phthalocyanine with a TiO2 and PNIPAM. The photocatalyst showed a responsive behavior due to the introduction of PNIPAM, allowing for reuse above a certain temperature. It effectively expanded the light response range and enhanced the performance of the photocatalyst. The photocatalyst exhibited excellent performance for the removal of Rhodamine B and methylene blue under visible light.
Article
Chemistry, Physical
Matthieu Grao, James Redfern, Peter J. Kelly, Marina Ratova
Summary: The study investigated the composite photocatalyst Bi12TiO20/Bi4Ti3O12 as an alternative to titanium dioxide, utilizing pulsed DC reactive magnetron co-sputtering to produce polycrystalline thin films. Results showed considerably higher efficiency of the composite photocatalyst compared to TiO2, with performance increasing over repeated usage, attributed to the presence of oxygen vacancies and longer lifetimes of photogenerated species.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
P. Albert, Jothi Narayanan, T. Arockiadoss
Summary: Nitrogen-doped titanium oxide was prepared using DC magnetron sputtering, with studies conducted on ITO-coated glass substrate, showing the influence of ITO on the optical band gap of the material. It was found that ITO enhances the redox potential through electron shifting.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Environmental Sciences
Khee Chung Hui, Wei Lun Ang, Wan Zaireen Nisa Yahya, Nonni Soraya Sambudi
Summary: This study demonstrates the synthesis of carbon dot (CD) and titanium dioxide (TNP) composite photocatalysts by combining N-doped, Bi-doped, and N-Bi co-doped CDs with TNP nanoparticles. The N-Bi-CDs/TNP composite exhibits the highest photocatalytic activity among all composites, effectively degrading diclofenac under visible light irradiation. The outstanding performance of N-Bi-CDs/TNP can be attributed to the photosensitizing and electron reservoir effects of N-Bi-CDs.
Article
Chemistry, Physical
Siavash Bakhtiarnia, Saeed Sheibani, Abbas Nadi, Eric Aubry, Hui Sun, Pascal Briois, Mohammad Arab Pour Yazdi
Summary: Cu-doped BiVO4 nanoporous thin films were synthesized using reactive magnetron sputtering, and the study found that the Cu content had a significant impact on the structure and photocatalytic activity of the films. The film with 2 at.% Cu exhibited the best photocatalytic performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Lang Pei, Hong Cai, Hao Jin, Taozhu Li, Heng Zhu, Yongjun Yuan, Jiasong Zhong, Shicheng Yan, Zhigang Zou
Summary: A newly designed Ta-based oxynitride, ScTaO4-xNx, has been successfully synthesized and demonstrated great potential for photocatalytic water splitting with its strong visible light absorption up to 540 nm.
Article
Materials Science, Multidisciplinary
Nesrine Ben Saber, Amine Mezni, Arwa Alrooqi, Tariq Altalhi
Summary: In this study, a ternary nanocomposite of gold-titania/rGO was prepared using a modified solvothermal process, showing high efficiency in the photocatalytic decomposition of organic pollutants and dyes. The rGO layers act as excellent electron transporters, facilitating the effective separation of electron-hole pairs, while the broad absorption spectrum of the ternary nanocomposite enhances photochemical reactions.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Environmental Sciences
Ying Zhang, Shici Zhang
Summary: A series of porous photocatalysts, Au-carbon-doped ZnO (Au/C/ZnO), were synthesized successfully using MOF-5 as a template and Au nanorods as a catalyst. The photocatalytic activity of Au/C/ZnO was investigated by degrading tetracycline hydrochloride under visible light. The enhanced activity was attributed to oxygen vacancies from C doping and the surface plasmon resonance (SPR) effect of Au nanorods, which improved the separation efficiency of photogenerated carriers and provided hot electrons for free radicals generation. This work provides an efficient method for designing noble metal and non-metal-doped oxide photocatalysts and offers an effective technique for antibiotic degradation under visible light.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Tongtong Li, Shulan Wang, Li Li, Huaze Zhu, Yongqiang Yang, Gang Liu
Summary: The photocatalytic performance of polymeric carbon nitride (CN) can be improved by constructing holey carbon nitride nanosheets, which enhances light absorption and electron-hole separation, leading to higher hydrogen evolution rate and apparent quantum yield.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Kamol Dey, Sonalika Vaidya, Anna Gobetti, Giorgio Ramorino, Ashok K. Ganguli
Summary: Undoped and N-doped TiO2 anatase/brookite mixed-phase nanoparticles were synthesized via a sol-gel method using urea as a nitrogen source. Nitrogen played a dual role in doping and controlling the anatase and brookite phases in the nanoparticles. N-doped anatase/brookite mixed-phase nanoparticles exhibited superior photocatalytic activity in degrading rhodamine-B under simulated visible light irradiation.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Energy & Fuels
Adisak Guntida, Bunjerd Jongsomjit, Supareak Praserthdam, Piyasan Praserthdam
Summary: The deactivation of titanium catalysts supported by different preparation methods was studied during the epoxidation reaction. Wet impregnation (WI)-based catalysts showed better stability compared to those prepared by incipient wetness impreganation (IWI), and SBA-15 as a support showed higher stability than SiO2. Strong metal-support interactions in the 4Ti/SBA-15WI catalyst were found to reduce the catalyst deactivation caused by surface oxygen vacancies.
Article
Energy & Fuels
Navajsharif S. Shaikh, Sawanta S. Mali, Jyoti Patil, Ajij Mujawar, Jasmin S. Shaikh, Sumayya C. Pathan, Supareak Praserthdam, Chang Kook Hong, Pongsakorn Kanjanaboos
Summary: Researchers have developed a high-performance hybrid supercapacitor using aqueous magnesium-ion-based electrodes, which exhibit excellent specific capacitance and cycling stability. The use of magnesium ions as a replacement for commercial electrochemical supercapacitors overcomes issues such as high cost, toxicity, and inadequate energy density at high power density.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Zhaohe Gao, Justyna Kulczyk-Malecka, Peter Kelly, Ping Xiao
Summary: The study shows that thin SiAlN coatings undergo ion-exchange reactions at high temperatures, resulting in gradual thinning of the coating and formation of oxide scales. Meanwhile, thick SiAlN coatings maintain a thicker residual layer under the same conditions, with no observable oxidation process.
APPLIED SURFACE SCIENCE
(2023)
Review
Engineering, Environmental
Mohan Gopalakrishnan, Sunantha Ganesan, Mai Thanh Nguyen, Tetsu Yonezawa, Supareak Praserthdam, Rojana Pornprasertsuk, Soorathep Kheawhom
Summary: Rechargeable aqueous zinc-ion batteries (AZIBs) have gained much interest due to their high energy density, safety, and low cost. However, issues such as anode side reactions, passivation, corrosion, hydrogen evolution, and Zn dendrite growth continue to hinder their widespread application. This review presents metal-organic frameworks (MOFs) as potential solutions to these problems by enhancing the performance of Zn anode materials, electrolytes, and electrolyte additives through their porous structure and active sites. The review also proposes directions for the rational design of MOF-based Zn anodes and understanding the mechanisms affecting Zn2+ solvation in high-performance AZIBs, aiming to extend the cycling lifetime and promote the commercialization of AZIBs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Tinnakorn Saelee, Suphawich Boonchuay, Attachai Sriwattana, Meena Rittiruam, Patcharaporn Khajondetchairit, Supareak Praserthdam, Annop Ektarawong, Bjorn Alling, Piyasan Praserthdam
Summary: Electricity production from clean energy sources has gained attention, but many power plants still use coal and natural gas, which produce toxic gases. Converting CO into a useful precursor before supplying it to chemical processes is effective, using a highly effective catalyst such as PtPdRhFeCo HEA(1 1 1) surface. This surface has unique electronic properties that weaken CO interaction and strengthen CO2 interaction, preventing CO poisoning and trapping CO2 after WGSR.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Antia Villamayor, Thomas Pomone, Sergio Perero, Monica Ferraris, Victoria Laura Barrio, Eva G-Berasategui, Peter Kelly
Summary: High photocatalytic activity layers were obtained by combining a TiO2 nanostructured coating support with NiO layers synthesized by direct current (DC) magnetron sputtering. The TiO2 crystallinity was improved through the optimization of sputtering process parameters. The formation of a p-n heterojunction between the TiO2 and NiO layers significantly enhanced the degradation rates of methylene blue under UV light.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Jakapob Noppakhun, Meena Rittiruam, Tinnakorn Saelee, Jasmin Shamshoddin Shaikh, Patcharaporn Khajondetchairit, Supareak Praserthdam, Piyasan Praserthdam
Summary: The integrated carbon capture and conversion (ICCC) is a promising catalytic process to produce syngas from CO2 and CH4. The Ratings concept based on density functional theory (DFT) is applied to overcome the problems caused by inconsistent feed ratio. Catalyst identification and optimization are carried out to improve performance and account for deactivation over time. Temperature change has a greater impact on catalysts compared to feed ratio.
Article
Materials Science, Multidisciplinary
Zhaohe Gao, Han Liu, Justyna Kulczyk-Malecka, Conghui Liu, Dongchen Hu, Peter Kelly, Ping Xiao
Summary: The degradation rates of SiAlN coatings on pure Ti, Ti6Al4V, and Timetal 834 alloys were studied and compared at 800°C in air. The SiAlN coating on pure Ti showed depletion and formation of a thin oxide scale after 50 hours, while a 0.6 μm thick SiAlN coating without oxidation was observed on Timetal 834. Interfacial reactions between SiAlN coatings and substrates determined the degradation rates, with non-reactive alloying elements Sn and Al in Timetal 834 retarding the reactions and impeding coating degradation.
Article
Chemistry, Applied
Xiang Peng, Song Xie, Shijian Xiong, Rong Li, Peng Wang, Xuming Zhang, Zhitian Liu, Liangsheng Hu, Biao Gao, Peter Kelly, Paul K. Chu
Summary: Combining electrocatalytic water splitting with waste iron upgrading reaction can improve energy conversion efficiency and achieve high-efficiency hydrogen production in neutral media. The heterostructured MoSe2/MoO2 on carbon cloth shows superior catalytic performance compared to commercial Pt/C catalyst at high current densities. Replacing conventional oxygen evolution reaction with waste iron upgrading reaction reduces the required potential by 95% for anodic current density of 10 mA cm-2. This work demonstrates energy-saving hydrogen production and pollutant recycling without carbon emission in a single system.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Meena Rittiruam, Sorawee Setasuban, Jakapob Noppakhun, Tinnakorn Saelee, Annop Ektarawong, Nuttanon Aumnongpho, Suphawich Boonchuay, Patcharaporn Khajondetchairit, Supareak Praserthdam, Bjorn Alling, Piyasan Praserthdam
Summary: The PtPd-based high-entropy alloy (HEA) catalysts are investigated for water-gas shift reaction (WGSR). Density functional theory (DFT) and Gaussian process regression are used to study the electronic properties of HEA surfaces. The strong H2O-active-site interaction with highly negative adsorption energy (E-ads) is considered as a criterion to explore potential PtPd-based WGSR catalyst candidates, such as PtPdRhAgCo, PtPdRuAgCo, PtPdRhAgFe, and PtPdRuAgFe.
ADVANCED THEORY AND SIMULATIONS
(2023)
Article
Materials Science, Multidisciplinary
Zhaohe Gao, Xun Zhang, Sheng Cao, Justyna Kulczyk-Malecka, Shiying Qin, Xiaodong Liu, Peter Kelly, Xinhua Wu, Ping Xiao, Yu -Lung Chiu
Summary: A SiAlN/ Mo coating was directly deposited onto the as-built topographic surface of laser-based powder bed fusion manufactured Ti6Al4V alloy with high surface roughness and native oxide scale. After exposure to 800 degrees C for 10 cycles in air for 50 hours, the topographic surface of Ti6Al4V was well protected by the SiAlN/ Mo coatings without any spallation, cracks, or oxidation. The conformal nature of the sputtered SiAlN/Mo coatings allowed for a good coverage of the topographic surface, and the diffusion of Mo through the thin native oxide scale resulted in a strong chemical bonding between the coatings and Ti substrates.
Article
Chemistry, Physical
Patcharaporn Khajondetchairit, Meena Rittiruam, Tinnakorn Saelee, Pussana Hirunsit, Supareak Praserthdam, Suwit Suthirakun
Summary: This work studied the improved hydrogen storage kinetics on VH/Mg2NiH4(101) using density functional theory. It was found that molecular hydrogen desorption improved on this system and hydrogen vacancy sites (HV) were formed at the interfacial sites. The investigation provided insights into the desorption and diffusion processes at the active site, which can guide the design of high-performance Mg-based hydrogen storage materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Amruta Koli, Abhishek Kumar, Akshata Pattanshetti, Amit Supale, Kalyanrao Garadkar, Jian Shen, Jasmin Shaikh, Supareak Praserthdam, Radha Kishan Motkuri, Sandip Sabale
Summary: This work presents an efficient method for synthesizing hierarchically porous carbon using wheat bran waste. The obtained carbon material shows high CO2 capture capacity, rapid dye removal capacity, and superior electrocatalytic activity.
Article
Multidisciplinary Sciences
Chanthip Wangphon, Tinnakorn Saelee, Meena Rittiruam, Patcharaporn Khajondetchairit, Supareak Praserthdam, Annop Ektarawong, Bjoern Alling, Piyasan Praserthdam
Summary: Density functional theory is used to compare the catalytic performance of high entropy alloy (HEA) and conventional catalysts in the passive NH3-SCR process. It is found that HEA has stronger NO adsorption and more spontaneous reaction processes, but NH3 production is more difficult.
ADVANCED THEORY AND SIMULATIONS
(2023)
Article
Multidisciplinary Sciences
Meena Rittiruam, Pisit Khamloet, Potipak Tantitumrongwut, Tinnakorn Saelee, Patcharaporn Khajondetchairit, Jakapob Noppakhun, Annop Ektarawong, Bjorn Alling, Supareak Praserthdam, Piyasan Praserthdam
Summary: This study investigates the impact of host elements on the electronic properties of active sites in high-entropy-alloy (HEA) catalysts using density functional theory (DFT). The selection of appropriate host elements significantly affects the surface structures, electronic, and catalytic properties of the system. Parameters such as adsorption energy, d-band center, Bader charge, Zero-point energy, and entropy are used for accuracy verification compared to the original surface. A novel guideline for active-site model construction is proposed, demonstrated by PtPdFeCoNi high-entropy alloys. The host element selection is crucial for the electronic structure and electrocatalytic properties of active-site models.
ADVANCED THEORY AND SIMULATIONS
(2023)
Article
Materials Science, Multidisciplinary
Ping Zhang, Xiujie Yue, Yeran Gao, Zhenyong Lin, Shunxiang Wang, Songting Zhang
Summary: This paper investigates the strengthening mechanism of highspeed cutting and solid particle-entrained waterjet peening (HSC-WJP) composite reinforcement on 7075-T6 aluminum alloy. The research results show that composite reinforcement can improve surface quality, reduce surface pits and roughness, and decrease the size of precipitation-free zone (PFZ) at grain boundaries.
Article
Materials Science, Multidisciplinary
Sangyoon Lee, Hwi Yoon, Sanghun Lee, Seung-min Chung, Hyungjun Kim
Summary: The wettability of metal oxides, particularly HfO2 thin films deposited via atomic layer deposition, and its correlation with surface free energy have been studied. It was found that surface oxygen species significantly affect the intrinsic hydrophilicity of HfO2 thin films, and the crystalline orientations also evolve with film thickness.
Article
Materials Science, Multidisciplinary
Changdong Yin, Yiwen Wu, Zhou Xu, Dongdong Ye, Jun Yao, Jianjun Chen, Qiang Liu, Xin Ge, Meiling Ding
Summary: This study proposed a new strategy to indirectly estimate the hydrogen diffusivity of metallic materials under tensile stress by combining the electrochemical hydrogen permeation test (EHPT), the hydrogen diffusion descriptive equation based on Fick's law, and hydrogen pre-charged tensile test. The results showed that the hydrogen permeation curve obtained was highly approximate to the theoretical trend. The hydrogen embrittlement (HE) susceptibility of the specimens increased with increasing stress.
Article
Materials Science, Multidisciplinary
Huan Luo, Wei-yi Wang, Xin Yu, Xian-jun Lei, Lang Liu, Guo-zheng Zha, Wen-long Jiang, Bin Yang, Bao-qiang Xu
Summary: Separating selenium and tellurium is a general challenge in material and non-ferrous metallurgical industries. This paper proposes a novel method that achieved efficient separation of selenium and tellurium using gas-liquid equilibrium phase diagram and valence regulation-vacuum gasification technique.
Article
Materials Science, Multidisciplinary
Fan Zhang, Rong Xin Wang, Aiqin Tian, Fangzhi Li, Jianping Liu, Hui Yang
Summary: Deposition of Pd/Pt/Au three-layer films on p-GaN under high and ultra-high vacuum conditions was studied to investigate the electrical contact properties. Linear I-V curves were observed in samples deposited under ultra-high vacuum conditions, while nonlinear I-V characteristics were obtained in samples deposited under high vacuum conditions. The study also found that the samples deposited under high vacuum conditions had higher amounts of oxygen and Pd oxide. The oxide layer had an additional influence on the electrical characteristics of the Pd/Pt/Au/p-GaN contact.
Article
Materials Science, Multidisciplinary
Hongli Liu, Chengzhe Liu, Ying Sui, Zhongxian Liu, Tiangang Zhang, Zhiqiang Zhang, Shuang Sun, Jianwei Jia
Summary: This study utilized polysiloxane and hafnium carbide to produce Si-N-C-O-Hf hybridized ceramic fibers, and obtained ceramic fibers with hemispherical particles on the surface through electrostatic spinning and pyrolysis. The ceramic fibers exhibited excellent thermal stability, oxidation resistance, and high temperature insulation.
Article
Materials Science, Multidisciplinary
M. Abaker, Nazar Elamin Ahmed, A. Saad, H. F. Khalil, E. M. M. Ibrahim, A. M. Adam
Summary: This paper systematically studied the internal structure and thermoelectric properties of In1-xGaxSb alloys prepared by melting synthesis at 1123 K. The results showed that doping with Ga in the In sites led to a significant increase in the Seebeck coefficient and power factor, while reducing the thermal conductivity. The maximum dimensionless figure of merit was observed at 403 K.
Article
Materials Science, Multidisciplinary
Fucheng Yu, Jinlong Ren, Jielin Zhang, Haiyang Chen, Xin Tian, Chenchen Feng, Cuixia Li, Jianbin Zhang, Xianxi Tang, Xiaogang Hou
Summary: An environmentally friendly ZnO@BiVO4 composite photocatalyst was prepared using in-situ self-assembly and solvothermal methods, demonstrating good photocatalytic performance. The mass ratio of BiVO4 and NCZ was found to influence the photocatalytic performance of the composite.
Article
Materials Science, Multidisciplinary
Yaoming Shao, Pingping Zheng, Tianhao Dong, Lianghuan Wei, Haifei Wu, Jianxiao Si
Summary: In this paper, Mg3Bi2 films were prepared on glass substrate using magnetron sputtering, and the phase composition and thermoelectric properties of the films were investigated with different atomic ratios. The films displayed a metastable cubic phase and high conductivity when the atomic ratio exceeded stoichiometry.
Article
Materials Science, Multidisciplinary
I. V. Uimanov, D. L. Shmelev, S. A. Barengolts
Summary: A two-dimensional axisymmetric model has been developed to study the prebreakdown processes in a cathode microprotrusion under an external electric field. The simulation results show that electrohydrodynamic instability leads to the formation of a nanometer-sized conical protrusion on the microprotrusion tip, significantly accelerating the heating process.
Article
Materials Science, Multidisciplinary
Weilun Zhang, Di Yang, Feng Gong, Yongjun Chen, Tian Chen, Zhiwen Xie, Sirui Yang
Summary: A novel Pt doping method was designed to improve the thermal stability of CrWN coating. The doping of Pt atoms effectively blocks the coherent growth of the grains and creates a significant mixing effect, resulting in a smooth surface with uniform element distribution.
Article
Materials Science, Multidisciplinary
Xiaoye Wang, Xiaoguang Yang, Wenna Du, Tao Yang
Summary: In this study, the effects of multiple growth parameters on self-catalyzed growth of InAs/GaSb axial heterostructured nanowires on Si substrate by MOCVD were investigated. It was found that the growth temperature and switching time have significant influences on the nanowire growth.
Article
Materials Science, Multidisciplinary
Weizhong Cui, Yan Zhao, Can Cui, Xing Liu, Beili Pang, Jianguang Feng, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: This study introduces Co2+ cations into Cs2AgBiBr6 film to improve its quality, grain size, and conductivity, resulting in enhanced solar cell efficiency.
Article
Materials Science, Multidisciplinary
Jian Wang, Ke Yang, Xianming Cheng, Yalin Lu, Ganghui Wu, Yang Zhang, Yun Kan
Summary: The corrosion behavior and microstructural evolution of Sc microalloyed Al-3.2Cu-1.5Li alloys were investigated in detail. The microstructural results showed higher levels of dislocations density in the Sc microalloyed sample, which resulted in significantly refined grains and T1 precipitates. Microalloying with Sc changed the corrosion mode of the alloy and localized corrosion was found to occur preferentially at the subgrain within unrecrystallized grains with high grain stored energy.
Article
Materials Science, Multidisciplinary
Weifeng Liu, Na Liu, Kaiqiang Song, Meiqin Zeng, Zhongchen Lu
Summary: Monoclinic WO3 prepared through plasma milling exhibits higher photocatalytic activity due to its higher surface area, increased oxygen vacancies, and defects.
