Article
Materials Science, Paper & Wood
Andrey Zdravkov, Maria Listratenko, Stanislav Gorbachev, Iraida Osovskaya, Andrey Kanaev, Nikolai Khimich
Summary: Cellulose is used as a template agent to structure anatase TiO2 particles, forming MCC-TiO2 composite photocatalyst with organic-inorganic structures preserved. Materials prepared in caproic acid solvent showed higher photocatalytic activity, explained by the complementary nature of organic and inorganic components.
Article
Engineering, Environmental
Zhirong Yang, Yurou Li, Yueqiang Cao, Xingqiang Zhao, Wenyao Chen, Jing Zhang, Gang Qian, Chong Peng, Xueqing Gong, Xuezhi Duan
Summary: The acidic properties of the support have a remarkable effect on the kinetics behavior and selectivity of acetylene hydrogenation, with different electronic structures of Pd as the underlying origin.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Sebastian Hock, Martin Lucas, Eva Kolle-Goergen, Maximilian Mellin, Jan P. Hofmann, Marcus Rose
Summary: In this work, the researchers demonstrate the applicability and outstanding catalytic performance of an alumina-supported [Pd(2-pymo)(2)](n) MOF catalyst in the selective hydrogenation of acetylene to ethylene under industrial front-end conditions. The catalyst shows competitive performance to an industrial benchmark catalyst and exceeds it in terms of ethane selectivity due to the combination of well-defined isolated Pd active sites and synergies due to MOF-support interactions. The high stability of the catalyst is proven for up to 60 hours on-stream and supported by XPS and XRD structural analysis.
Article
Materials Science, Multidisciplinary
Tatyana N. Afonasenko, Victor L. Temerev, Daria Glyzdova, Natalya N. Leont'eva, Mikhail Trenikhin, Igor P. Prosvirin, Dmitry A. Shlyapin
Summary: The study explores how modifying the electronic properties of palladium by gallium and forming bimetallic Pd2Ga particles can increase the selectivity of ethylene.
Article
Chemistry, Multidisciplinary
Garima Tiwari, Gunjan Sharma, Rishi Verma, Pooja Gakhad, Abhishek Kumar Singh, Vivek Polshettiwar, Balaji R. Jagirdar
Summary: Acetylene semi-hydrogenation is a reaction of fundamental and commercial importance. Researchers have successfully synthesized bimetallic Pd-Zn nanoparticles as a catalyst, which showed high selectivity and stability towards acetylene at room temperature and atmospheric pressure.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ruijie Gao, Jisheng Xu, Jian Wang, Jongwoo Lim, Chong Peng, Lun Pan, Xiangwen Zhang, Huaming Yang, Ji-Jun Zou
Summary: The study successfully constructed a highly active and stable single palladium-iron catalyst, achieving high activity and selectivity for alkyne hydrogenation and exhibiting excellent performance for purifying acetylene from ethylene streams.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Jan Mrazek, Lubomir Spanhel, Vlastimil Matejec, Ivo Barton, Robert Dzunda, Viktor Puchy
Summary: The study presents a sol-gel approach for preparing DBRs using nanocrystalline Zn2TiO4 and amorphous SiO2 xerogel films, and investigates their structural and optical properties at different annealing temperatures. The films prepared reflect over 97% of incident light at 980 nm and can be used for constructing DBRs operating in the near-infrared region.
Article
Chemistry, Physical
Hui Dai, Xin Xiao, Lihong Huang, Changjian Zhou, Jie Deng
Summary: The study demonstrates that Palygorskite modified with NH3 promotes the dispersion of Pd nanoparticles, inhibits the formation of beta-PdHX, and enhances the ethylene selectivity.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Maryam Takht Ravanchi, Maryam Rahimi Fard, Saeed Sahebdelfar, Peyman Bigdeli
Summary: Pd-Ag/Al2O3 catalysts were prepared using sequential impregnation with acidic and basic colloidal oxide solutions. The catalysts showed better performance in selective hydrogenation of acetylene to ethylene, with the basic mode exhibiting superior performance.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Chemistry, Physical
Qinglei Wu, Chenyang Shen, Chang-jun Liu
Summary: The use of an amino acid modified Pd/SiO2 catalyst suppresses the excessive hydrogenation capacity of palladium, leading to improved selectivity for hydrogenation of acetylene.
APPLIED SURFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Xinxiang Cao, Ruijian Tong, Siye Tang, Ben W-L Jang, Arash Mirjalili, Jiayi Li, Xining Guo, Jingyi Zhang, Jiaxue Hu, Xin Meng
Summary: Novel zinc-palladium-porphyrin bimetal metal-organic framework (MOF) nanosheets were synthesized and transformed into carbon-supported Pd-Zn intermetallics with different Pd: Zn atomic ratios. Pd3.9Zn6.1 showed the best catalytic performance for selective hydrogenation.
Article
Chemistry, Organic
D. V. Glyzdova, T. N. Afonasenko, V. L. Temerev, D. A. Shlyapin
Summary: The study investigates the effect of N-methyl-2-pyrrolidone (NMP) solvent on the properties of Pd-Zn/Sibunit catalyst in hydrogenation of a gas mixture enriched in acetylene and hydrogen. It was found that the presence of NMP and the action of bimetallic Pd-Zn active sites efficiently suppress the transformation of formed C2H4, leading to high ethylene selectivity. The catalyst demonstrates stable performance with a 77% ethylene yield under liquid-phase reaction conditions.
PETROLEUM CHEMISTRY
(2021)
Article
Agricultural Engineering
Luiz Eduardo Campos Filho, Adrielly Csala Steigenberger, Romulo Henrique Batista Martins, Wanley Eduardo Lopes Junior, Higor Rogerio Favarim, Eliria Maria de Jesus Agnolon Pallone, Maria Teresa de Alvarenga Freire, Milena Martelli Tosi, Juliano Fiorelli
Summary: This study evaluated medium density OSB panels manufactured using commercially sourced and laboratory-produced aluminum oxide nanoparticles. The results indicated that commercial aluminum oxide nanoparticles provided better performance in microstructural and qualitative analysis, as well as an increase in physical-mechanical properties.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Materials Science, Ceramics
Elizaveta P. Simonenko, Nikolay P. Simonenko, Eugeniy K. Papynov, Oleg O. Shichalin, Anton A. Belov, Ilya A. Nagornov, Philipp Yu Gorobtsov, Nikolay T. Kuznetsov
Summary: The potentials of producing ceramic materials Ta4HfC5 and Ta4HfC5-30 vol% SiC at relatively low temperatures (1700 and 1800 degrees C) were studied through reactive spark plasma sintering of highly dispersed powders Ta2O5-HfO2-C and Ta2O5HfO2-C-SiC. The introduction of silicon carbide not only stimulated the consolidation process and the formation of a solid solution with Ta4HfC5 composition, but also increased the oxidation resistance of the carbide ceramics. Oxidation resistance of the obtained ceramic materials was evaluated by thermal analysis and exposure to laser radiation in atmospheric air.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Wenbo Xie, Jiayan Xu, Yunxuan Ding, P. Hu
Summary: Selective acetylene hydrogenation on Pd(111) was comprehensively investigated using a detailed microkinetic model developed with density functional theory energies. By combining coverage-dependent calculations and AIMD results, a full first-principles kinetic simulation was achieved, showing that the coverage-dependent model gives more reasonable results. The study found that the activity is mainly influenced by the barriers of the first two hydrogenation steps, with ethylene desorption and C2H4* hydrogenation barriers significantly impacting selectivity, particularly the former.
Article
Chemistry, Multidisciplinary
Settakorn Upasen, Gittaya Sarunchot, Nutcharin Srira-ngam, Yingyot Poo-arporn, Piyachat Wattanachai, Piyasan Praserthdam, Pailin Ngaotrakanwiwat, Joongjai Panpranot, Soipatta Soisuwan
Summary: The study investigated the use of commercial zeolite LTA4A and LTA5A as nickel metal catalyst supports for CO2 methanation. The results showed that the catalysts' loading amount significantly affected product selectivity, with the 5% nickel loaded on zeolite LTA showing the highest total CO2 conversion at 400-500 degrees C, while 20%Ni/LTA5A exhibited the highest CO2 conversion to methane at 400 degrees C.
JOURNAL OF CO2 UTILIZATION
(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
Chemistry, Physical
Sureeporn Saknaphawuth, Patcharaporn Weerachawanasak, Laemthong Chuenchom, Piyasan Praserthdam, Joongjai Panpranot
Summary: Ferromagnetic element-promoted Pt/AC catalysts were tested in the liquid-phase hydrogenation of furfural. The results showed that 0.15FePt/AC catalyst exhibited good catalytic performance, which was attributed to the higher Pt dispersion, the presence of low coordination Pt sites, and the strong Pt-Fe interaction.
Article
Chemistry, Physical
Natthanan Rattanachueskul, Oraya Dokkathin, Decha Dechtrirat, Joongjai Panpranot, Waralee Watcharin, Sulawan Kaowphong, Laemthong Chuenchom
Summary: Sugarcane bagasse ash was used as a catalyst support to prepare magnetic sugarcane bagasse ash (MBGA). The MBGA catalyst showed excellent degradation activity and high stability in the Fenton system for the catalytic degradation of high concentration tetracycline. The results suggest that MBGA has high potential for practical applications.
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)
Review
Environmental Sciences
Phuet Prasertcharoensuk, Athitaya Promtongkaew, Makamas Tawatchai, Victor Marquez, Bunjerd Jongsomjit, Muhammad Tahir, Supareak Praserthdam, Piyasan Praserthdam
Summary: Hydrogen sulfide is a critical issue in biogas applications, and selective catalytic oxidation is considered a green technology for its elimination. Metal oxide-based and carbon-based catalysts are commonly used for selective oxidation, with differences in their sensitivity to operating parameters.
Article
Energy & Fuels
Nichakorn Buasuk, Meena Rittiruam, Kanokpon Maungthong, Siriwimol Somdee, Tinnakorn Saelee, Phakaorn Aphichoksiri, Chinanang Ngamlaor, Supareak Praserthdam, Piyasan Praserthdam
Summary: This study investigates the deactivation of the gamma-Al2O3 catalyst in a low-temperature methyl oleate epoxidation reaction. It reveals that soft coke and refractory coke contribute to the deactivation, with refractory coke blocking the formation of the key reaction site. Therefore, controlling coke formation is crucial for the overall performance of the catalyst.
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
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
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
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)
