Article
Chemistry, Physical
Mengyan Li, Johannes Ihli, Marcel A. Verheijen, Mirko Holler, Manuel Guizar-Sicairos, Jeroen A. van Bokhoven, Emiel J. M. Hensen, Thomas Weber
Summary: Preparation conditions have a significant impact on the structure and performance of alumina-supported catalysts for hydrodesulfurization (HDS). Factors such as precursor structure, metal-support interactions, and sulfidation processes contribute to the observed differences in HDS activity between catalyst samples. The choice of different chemical sources for preparation leads to variations in precursor structure and reducibility, affecting the formation of active species and ultimately the catalytic performance in HDS reactions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Mengyan Li, Johannes Ihli, Marcel A. Verheijen, Mirko Holler, Manuel Guizar-Sicairos, Jeroen A. van Bokhoven, Emiel J. M. Hensen, Thomas Weber
Summary: Preparation conditions have a significant impact on the structure and performance of alumina-supported hydrodesulfurization catalysts. The study found that catalyst samples prepared from different chemical sources exhibited notable differences in structure and activity, with sample B showing higher activity than sample A, and these differences can be attributed to the structural variations caused by the different preparation conditions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Ruben Rizo, Arno Bergmann, Janis Timoshenko, Fabian Scholten, Clara Rettenmaier, Hyo Sang Jeon, Yen-Ting Chen, Aram Yoon, Alexander Bagger, Jan Rossmeisl, Beatriz Roldan Cuenya
Summary: Direct ethanol fuel cells have great potential as clean electrochemical power sources, but their commercialization is hindered by the high cost and low efficiency of Pt-based catalysts. Pt-Sn-Co nanocubes with a Pt-and Sn-rich shell showed improved performance for the electrochemical ethanol oxidation reaction (EOR) due to the leaching of Sn from the core and shell, leading to electrochemically-accessible Pt sites adjacent to partially-oxidized Sn sites on a Pt3Co-like core. The increased activity of the Pt-Sn-Co nanocubes was attributed to the higher production of C-1 (CO2) and C-2 (acetic acid/acetaldehyde) products during EOR as well as their ability to remove adsorbed CO from the Pt surface.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Revathi Kottappara, Shajesh Palantavida, Suresh C. Pillai, Baiju Kizhakkekilikoodayil Vijayan
Summary: A direct low-cost chemical reduction method is presented for the synthesis of the ternary Cu-Cu2O-CuO system, where the presence of graphene oxide helps limit the conversion of copper to copper oxide. The composition of the ternary system can be altered by adjusting the amount of copper precursor used, as confirmed by X-ray diffraction studies and XPS analysis of the synthesized nanocomposites. The enhanced catalytic efficiency of the composite nanostructures towards visible light photodegradation and hydride reduction reactions is attributed to the interaction between graphene sheets and copper, as well as the unique ternary composition of Cu2O-Cu-CuO.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
A. V. Bukhtiyarov, M. A. Panafidin, I. P. Prosvirin, N. S. Smirnova, P. V. Markov, G. N. Baeva, I. S. Mashkovsky, G. O. Bragina, C. Rameshan, E. Yu. Gerasimov, Y. V. Zubavichus, V. I. Bukhtiyarov, A. Yu. Stakheev
Summary: A bimetallic PdIn/Al2O3 catalyst was prepared and characterized, and its activity and selectivity changes in the diphenylacetylene hydrogenation were investigated. It was found that oxidative treatment modified the catalyst active sites structure, leading to a decrease in selectivity, but this effect was reversible and reproducible. This catalyst is of great significance for balancing activity and selectivity.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Tatiana V. Bogdan, Alexander N. Kalenchuk, Leonid M. Kustov, Viktor I. Bogdan
Summary: The carbon carrier Sibunit (R) plays a fundamental role in the formation of active and selective phases in low-percentage Pt-containing catalysts. Among the catalysts studied, Pt/Ni-Cr/C shows the highest activity and selectivity in the complete dehydrogenation of bicyclohexyl into biphenyl. The formation of the Pt1-xCx carbide phase and graphitization of the carbon carrier are two key processes associated with the high activity and successful course of the reaction.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Alessandro Piovano, Toru Wada, Alessia Amodio, Gentoku Takasao, Tomohiro Ikeda, Dongzhi Zhu, Minoru Terano, Patchanee Chammingkwan, Elena Groppo, Toshiaki Taniike
Summary: The formation of nanosized and defective b-MgCl2 in Ziegler-Natta catalysts was investigated using a variety of characterization techniques, revealing that the addition of TiCl4 and an internal donor such as dibutyl phthalate (DBP) play crucial roles in the reconstruction and growth of MgCl2 seeds. The complex interactions between TiClx(OEt)(4-x) and DBP were studied, shedding light on the catalytic activity of the catalyst during the preparation process. This multifaceted approach provided deep insights into the industrial catalyst preparation method.
Article
Materials Science, Multidisciplinary
Liang Yu, Yu Wang, Xiaohong Xia, Xuxing Chen, Zhongbing Huang, Kevin Peter Homewood, Yun Gao
Summary: This study delves into the phenomenon of photo-corrosion in TiO2 nanosheets and highlights the crucial role of high specific surface area and perfect dispersity in the catalytic efficiency of H-2 evolution reaction. Through exploration of four different conditions, it is confirmed that modification with highly active metal co-catalyst and surfactant PVP can greatly enhance catalytic efficiency and morphology stability of TiO2(B) nanosheets. The addition of PVP not only stabilizes the nanosheet morphology but also significantly improves the original efficiency, showcasing the potential to settle photocorrosion issues in illuminated applications for other nanomaterials.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Nanoscience & Nanotechnology
Minghao Xie, Min Shen, Ruhui Chen, Younan Xia
Summary: In this study, Pt-Ni nanocrystals with controlled shapes and compositions were synthesized to investigate the impact of Ni content on the formation of {111} facets and ORR activity. By excluding O-2 completely, a linear relationship was achieved between the atomic ratio of Pt to Ni in the nanocrystals and the feeding ratio of the precursors. The specific ORR activities of octahedral nanocrystals exhibited a positive correlation with the Pt/Ni atomic ratio, with a peak value at a Pt/Ni atomic ratio of 1.6 after the accelerated durability test.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jonathan Quinson, Sebastian Kunz, Matthias Arenz
Summary: The ultimate research goal in catalysis is to develop new catalysts with superior activity, stability, and selectivity. However, a complete understanding of the factors influencing the performance of supported catalysts remains challenging. Systematic studies that change one experimental parameter at a time provide detailed insights into optimizing supported precious metal nanoparticles for energy and chemical conversion processes.
Article
Chemistry, Multidisciplinary
Yizhen Chen, Rachita Rana, Tyler Sours, Fernando D. Vila, Shaohong Cao, Thomas Blum, Jiyun Hong, Adam S. Hoffman, Chia-Yu Fang, Zhennan Huang, Chunyan Shang, Chuanhao Wang, Jie Zeng, Miaofang Chi, Coleman X. Kronawitter, Simon R. Bare, Bruce C. Gates, Ambarish R. Kulkarni
Summary: This study utilizes density functional theory calculations and automated analysis of EXAFS spectra to identify isolated, surface-enveloped platinum cations as the catalytic species for CO oxidation. The proposed platinum sites are in agreement with experimental results, providing a more detailed picture of the catalytically active site structure. The theory-guided workflow is efficient and agnostic to metal, support, and catalytic reaction, making it of broad interest to the materials characterization and catalysis communities.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Hengquan Guo, Sung Gu Kang, Seung Geol Lee
Summary: This study investigates the oxygen reduction reaction performance of a group of MXene-like carbide two-dimensional materials and concludes that WC2 exhibits a low overpotential, indicating its potential as an electrocatalyst for oxygen reduction.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xuan Ye, Joseph Kimball, Jose L. Chavez, Luca Ceresa, Chris Breiner, Michael Seung, Zygmunt Gryczynski
Summary: Steady-state and time-resolved fluorescence spectroscopy were used to characterize catalytically active metallocene species. The study revealed the presence of a lumophore and its spatial distribution on a silica support.
Article
Chemistry, Applied
Anastasios I. Tsiotsias, Nikolaos D. Charisiou, Ayesha AlKhoori, Safa Gaber, Vlad Stolojan, Victor Sebastian, Bart van der Linden, Atul Bansode, Steven J. Hinder, Mark A. Baker, Kyriaki Polychronopoulou, Maria A. Goula
Summary: In this study, Ni catalysts supported on Pr-doped CeO2 were investigated for CO2 methanation reaction. It was found that Pr doping introduced oxygen vacancies and promoted the dispersion of active metal. Low Pr loadings showed enhanced catalytic activity, while high Pr contents decreased the oxygen vacancy population and resulted in decreased catalytic activity.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Biochemical Research Methods
Wenzhu Li, Fang Zhao, Xinyuan Xie, Jiayu Yang, Jianyang Pan, Haibin Qu
Summary: This study developed a quantitative H-1 NMR method to determine the contents of multiple components in Shenmai injection. The method demonstrated reliability and could be applied to improve the quality control of CHIs. The study provides valuable insights for the research on the quality and safety of CHIs.
PHYTOCHEMICAL ANALYSIS
(2022)
Article
Chemistry, Applied
Ricardo H. Gil-Horan, Juan C. Chavarria-Hernandez, Patricia Quintana-Owen, Aida Gutierrez-Alejandre
TOPICS IN CATALYSIS
(2020)
Article
Chemistry, Applied
Eduardo Santiago Vazquez, Julia Aguilar Pliego, Joaquin Perez Pariente, Manuel Sanchez Sanchez, Angel R. Arteaga Licona, Misael Garcia Ruiz, Dora Solis-Casados
Article
Chemistry, Applied
A. Alcantara-Cobos, E. Gutierrez-Segura, M. Solache-Rios, A. Amaya-Chavez, D. A. Solis-Casados
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Article
Chemistry, Applied
Edgar Tututi-Rios, Horacio Gonzalez, Denis A. Cabrera-Munguia, Aida Gutierrez-Alejandre, Jose L. Rico
Summary: Through the sol-gel method, Sn-SBA-15 catalysts modified with -PrSO3H groups were synthesized, which significantly improved the acid properties of the catalysts and increased the conversion rate of the esterification reaction between oleic acid and methanol.
Article
Chemistry, Applied
Jose Luis Sanchez-Cupil, Rogelio Cuevas-Garcia, Aida Gutierrez-Alejandre, Jorge Ramirez
Summary: Hydrotalcites with different Ni contents were synthesized and used as catalysts for the transesterification of castor oil. It was found that the addition of nickel increased the number of medium basic force sites, and the catalyst with Ni2Mg1-C ratio showed the highest activity and methanol adsorption. The relationship between methoxy ions and transesterification activity was established by analyzing the methanol adsorption behavior on the catalyst. A new mechanism for basic heterogeneous catalysis was proposed based on the existence of methoxy ions in solution when methanol was added to a calcined hydrotalcite and heated.
Article
Chemistry, Physical
Alfredo Lopez-Olvera, J. Gabriel Flores, Julia Aguilar-Pliego, Carl K. Brozek, Aida Gutierrez-Alejandre, Ilich A. Ibarra
Summary: The chemical transformation of H2S inside MOFs to generate polysulfides in situ is an exciting strategy for sequestration, with implications for sulfur battery electrodes. The unexpected MOF-catalyzed polysulfide formation involves mechanisms diverging radically from conventional coordination chemistry. The importance of dynamic metal-linker bonding in designing future MOF catalysts is highlighted.
CHEMISTRY OF MATERIALS
(2021)
Article
Electrochemistry
M. Castro-Gomez, A. Gutierrez-Alejandre, M. Aguilar-Franco, L. C. Ordonez
Summary: By characterizing and testing composite materials with different metal oxide contents, it was found that the incorporation of TiO2 and ZrO2 into the support can modify their electronic properties and increase the concentration of acid sites, which positively affects the activity of Pt catalysts. The Pt/C-Ti23 and Pt/C-Zr23 catalysts showed the highest electrocatalytic activity among the tested composites.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Chemistry, Applied
Perla Castillo-Villalon, Jorge Ramirez, Alejandro Reyes-Sosa, Aida Gutierrez-Alejandre, Eddy Leyva-Ramirez, Rogelio Cuevas, Alejandra Toledo-Duran
Summary: The study reveals the significant role of cobalt sulfide in hydrodesulfurization catalysis, emphasizing its importance in achieving highly active catalysts.
Article
Chemistry, Physical
Ireri Segura Gutierrez, Veronica Hernandez Morales, Eric Mauricio Rivera Munoz, Rufino Nava Mendoza, Ludwig Lagarde Soto, Carmen Leticia Peza Ledesma, Doris Solis Casados, Barbara Pawelec
Summary: In this study, novel adsorbents based on 3D hierarchical silica monoliths functionalized with thiol groups were used for the removal of Hg(II) ions from acidic aqueous solution. The results showed that the hierarchical macro-mesoporosity of the functionalized monoliths allowed for better accessibility of Hg(II) to thiol groups, resulting in higher removal efficiency under slightly acidic conditions.
Article
Chemistry, Physical
Roxana Paz, Herlys Viltres, Nishesh Kumar Gupta, Kaptan Rajput, Debesh R. Roy, Adolfo Romero-Galarza, Mark C. Biesinger, Carolina Leyva
Summary: A stable zirconium metal-organic framework (Zr-MOF) was synthesized and demonstrated effective removal of As(V) from water. The adsorption process was found to involve physicochemical forces and ligand-exchange mechanism. Theoretical calculations confirmed the binding energies and further supported the proposed mechanisms. The material regeneration using HCl solution was also successful.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Maria Guadalupe Hernandez-Cruz, Dora Alicia Solis-Casados, Jose Antonio Toledo-Antonio, Jorge Roberto Vargas-Garcia, Miriam Estrada-Flores, Carlos Angeles-Chavez, Maria Antonia Cortes-Jacome, Cecilia Encarnacion-Gomez
Summary: Au nanoparticles supported on TiO2 nanotubes were synthesized by a novel vapor phase impregnation approach and their photocatalytic performance in the decoloration of malachite green dye was evaluated. Characterization techniques revealed that the Au nanoparticles exhibited high dispersion and electronic interaction with TiO2, resulting in a decreased band gap energy and surface plasmonic resonance. These findings provide important insights for the application of photocatalytic materials.
Review
Chemistry, Inorganic & Nuclear
Juan L. Obeso, Daniel R. Amaro, Catalina Flores, Aida Gutierrez-Alejandre, Ricardo A. Peralta, Carolina Leyva, Ilich A. Ibarra
Summary: Metal-Organic Frameworks (MOFs) are used in the adsorption and oxidation of H2S, with the potential to generate polysulfides for applications in lithium-sulfur batteries.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Dora Alicia Solis-Casados, Estefany Rodriguez-Nava, Rafael Basurto, Uvaldo Hernandez-Balderas, Tatiana Klimova, Luis Escobar-Alarcon
Summary: Boron-modified TiO2 thin films with different boron contents were prepared, and the XPS results showed the variation of boron content and the formation of Ti-O-B bonds. Raman spectra indicated that the incorporation of boron improved the crystallinity and decreased the crystallite size. Photoluminescence characterization revealed a suppression of electron-hole recombination rate due to boron incorporation. The photocatalytic activity of boron-modified films was enhanced under solar-simulated irradiation.
BULLETIN OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Israel T. Pulido-Diaz, Alejandro Serrano-Maldonado, Carlos Cesar Lopez-Suarez, Pedro A. Mendez-Ocampo, Benjamin Portales-Martinez, Aida Gutierrez-Alejandre, Karla P. Salas-Martin, Itzel Guerrero-Rios
Summary: The study demonstrates that nicotinamide groups grafted on ordered mesoporous silica (OMS) can serve as stabilizers for RhNPs used as catalysts, forming spherical rhodium nanoparticles with a narrow size distribution. On the contrary, amine-functionalized OMS tends to form RhNP aggregates after catalytic reactions, affecting the reaction efficiency. Supported RhNPs also exhibit selective reduction of different groups and show high activity in reductive amination reactions.
DALTON TRANSACTIONS
(2021)
Article
Materials Science, Multidisciplinary
Sujing Wang, Liyu Chen, Mohammad Wahiduzzaman, Antoine Tissot, Lin Zhou, Ilich A. Ibarra, Aida Gutierrez-Alejandre, Ji Sun Lee, Jong-San Chang, Zheng Liu, Jerome Marrot, William Shepard, Guillaume Maurin, Qiang Xu, Christian Serre
Summary: Researchers have developed a robust mesoporous metal-organic framework, MIP-206, using a novel strategy to overcome limitations of previous mesoporous materials, showing excellent performance and potential for a wide range of applications.
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)