Article
Chemistry, Analytical
Suphitsara Maturost, Nathapong Pongpichayakul, Paralee Waenkaew, Napapha Promsawan, Suwaphid Themsirimongkon, Jaroon Jakmunee, Surin Saipanya
Summary: This paper presents a method for preparing an anode electrocatalyst for fuel cells, which shows promising potential for application in low-temperature fuel cells due to its high oxidation activity and durability. The new material was characterized and tested for performance, demonstrating improved catalytic activity and mass transfer efficiency for oxidations.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Xia Qiu, Haifeng Wei, Renjia Li, Yongxin Li
Summary: Bimetallic Au@Pt/Au NPs with triple-layered core-shell structure were successfully prepared and characterized. The single Au@Pt/Au NPs exhibited size-dependent properties for vol-tametric response and electron-transfer rate, and showed excellent electrocatalytic activity, long-term tolerance, and anti-toxicity compared with traditional Pt catalyst. This work provides new insight into conventional electrocatalysis and offers a platform for designing entirely new catalysts at single NPs level.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Multidisciplinary Sciences
Xiaoyang Huang, Ouardia Akdim, Mark Douthwaite, Kai Wang, Liang Zhao, Richard J. Lewis, Samuel Pattisson, Isaac T. Daniel, Peter J. Miedziak, Greg Shaw, David J. Morgan, Sultan M. Althahban, Thomas E. Davies, Qian He, Fei Wang, Jile Fu, Donald Bethell, Steven McIntosh, Christopher J. Kiely, Graham J. Hutchings
Summary: This study demonstrates that the reaction rate can be almost doubled by separating the gold and palladium components in bimetallic carbon-supported catalysts. The enhancement is attributed to the coupling of separate redox processes occurring at isolated gold and palladium sites.
Article
Chemistry, Applied
Pacharapon Kankla, Teera Butburee, Narong Chanlek, Suchinda Sattayaporn, Patraporn Luksirikul
Summary: The performance of Pd-based catalysts doped with different metal elements was investigated. The experimental results showed that Pd4Ni/rGO exhibited superior electrocatalytic performance in the formic acid oxidation reaction. Furthermore, Pd4Cr/rGO catalyst had the highest efficiency toward formic acid oxidation among the series with the same metal mole ratio.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Physical
Linwei Zheng, Tiantian Zeng, Miao Ling, Yanrui Wang, Weiyong Yuan, Lian Ying Zhang
Summary: Adding other transition metals into Pd lattice is an effective strategy to improve Pd utilization and enhance its catalytic activity through generated ligand and strain effects. In this study, PdMn nanosheet assembled nanobuds were synthesized using a facile method, which showed significantly better catalytic activity and stability compared to the-state-of-the-art Pd-C catalyst. The catalytic enhancement mechanism can be mainly attributed to the modulated electronic structure and consequent charge redistribution that resulted in the generated ligand effect.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Suphitsara Maturost, Suwaphid Themsirimongkon, Surin Saipanya, Li Fang, Natthapong Pongpichayakul, Jaroon Jakmunee, Paralee Waenkaew
Summary: Pd/xCuO-10CNT (x = 1, 2, 3, 4) catalysts synthesized using an improved polyol method exhibit excellent oxidation performance and electrocatalytic activity, along with stability and CO poisoning tolerance. The insertion of CuO onto the CNT surface provides additional electrochemical active sites, facilitating charge transfer.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Electrochemistry
Gabriel. M. M. Alvarenga, Julio Palombarini, Rosana. A. A. Goncalves, Olivia. M. M. Berengue, Ronaldo. S. S. Nunes, Sydney. F. F. Santos, Hebe. M. M. Villullas, Eduardo. G. G. Ciapina
Summary: The aim of this study was to investigate the influence of a RuO2 support on the activity of Pd nanoparticles during formic acid oxidation, comparing it with Pd/C. Contrary to previous reports on enhancing effects of RuO2, our findings reveal a negative impact of the RuO2 support on the activity of Pd nanoparticles for formic acid oxidation. The formation of CO2 at low potentials and the absence of adsorbed CO signals suggest that the oxidation of formic acid on Pd/RuO2 and Pd/C occurs through a direct pathway without significant contribution from a bifunctional mechanism involving OH species on the oxide support surface. The detrimental effect of the RuO2 support on activity is likely a result of metal-support interactions altering the electronic properties of Pd.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Mengyin Liao, Weiping Li, Jiaxi Peng, Fan Zhang, Wenyuan Xu, Zhichao Huang
Summary: The catalytic properties of Pd-Fe bimetallic catalysts can be continuously adjusted by treatment at different temperatures, affecting their activity in formic acid oxidation. The Pd-Fe/C catalyst treated at 500 degrees Celsius shows the highest electrocatalytic activity for formic acid oxidation, outperforming the commercial Pt/C catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yao-Yin Lou, Chi Xiao, Jiayi Fang, Tian Sheng, Lifei Ji, Qizheng Zheng, Bin-Bin Xu, Na Tian, Shi-Gang Sun
Summary: The study found that Pd nanocatalysts with abundant step sites exhibit higher catalytic performance in the electrocatalytic dechlorination reaction; the adsorbed C=O bond and generated H-ads* on the step sites can lower the C-Cl bond splitting barrier, leading to improved reaction efficiency.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Tomasz Szumelda, Alicja Drelinkiewicz, Robert Kosydar, Jacek Gurgul, Dorota Duraczynska
Summary: Carbon-supported bimetallic Pd-Ir catalysts were prepared via water-in-oil microemulsion method with different metal precursors concentrations, showing varying structural properties and catalytic activities for formic acid oxidation. The nanoparticles exhibited similar sizes regardless of Pd/Ir ratio, with different surface compositions and catalytic performances observed at low and high precursor concentrations. The Pd85Ir15/C catalyst displayed the highest activity, outperforming monometallic Pd catalysts.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Suwaphid Themsirimongkon, Kullapa Chanawanno, Paralee Waenkaew, Suphitsara Maturos, Nathapong Pongpitchayakul, Li Fang, Jaroon Jakmunee, Surin Saipanya
Summary: Enhanced electrocatalysts for formic acid oxidation reaction (FAOR) were prepared by constructing N-doped graphene oxide hybrid materials and loading electrodeposited Pd nanoparticles onto the prepared GO-xFBOPHY (x = wt%) support surfaces. The morphology of the prepared catalysts was characterized by TEM, and the phase and chemicals were determined by XRD and XPS, respectively. The electrocatalytic activity and stability of the catalysts were measured by CV and CA. The results showed that GO-2FBOPHY/Pd exhibited excellent catalytic performance for FAOR, with large active surface area (ECSA = 117.2 m(2)/g), high specific activity (8.53 mA cm(-2)), long-term stability (0.113 mA cm(-2) at potential 0.20 V), and fast electron transfer (charge-transfer resistance 1353 Omega). GO-xFBOPHY/Pd weakened the COads bond strength on Pd nanoparticles at a negative onset potential (0.60 V) compared to GO/Pd (0.66 V). These prepared catalysts could improve anodic oxidation and be used in direct formic acid fuel cells.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Dmitry B. Eremin, Alexey S. Galushko, Daniil A. Boiko, Evgeniy O. Pentsak, Igor Chistyakov, Valentine P. Ananikov
Summary: Homogeneous catalysis is well-defined, while heterogeneous nanocatalysis is often poorly defined. Supported catalysts are difficult to characterize due to their heterogeneity and large size at the nanoscale. By studying individual particles of the supported catalyst, important aspects of activity for widespread and commercially important Pd/C catalysts have been revealed.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Asep Sugih Nugraha, Minsu Han, Aditya Ashok, Yunqing Kang, Jeonghun Kim, Saad M. Alshehri, Tansir Ahamad, Yoshio Bando, Yusuke Yamauchi
Summary: In this study, a novel one-pot chemical reduction method was reported to synthesize mesoporous AuAg nanoparticles. The composition of Au and Ag in the final nanoparticles can be precisely controlled by adjusting the precursor composition. The resulting nanoparticles are characterized by uniform size and well-ordered mesoporous structure. Mesoporous AuAg nanoparticles exhibit remarkable electrocatalytic activity in the electrooxidation of small molecules, surpassing that of mesoporous Au nanoparticles.
Article
Chemistry, Multidisciplinary
Hongjing Wang, Hongyong Chen, Qiqi Mao, Kai Deng, Hongjie Yu, Xin Wang, You Xu, Ziqiang Wang, Liang Wang
Summary: In this study, a PdMn bimetallene with rich defects and highly curved structures is synthesized using a template-free solvothermal method. The PdMn bimetallene shows superior performance in the formate oxidation reaction and the hydrogen evolution reaction, making it a promising candidate for hydrogen production.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Zexing Wu, Hengbo Wu, Weiquan Cai, Zhenhai Wen, Baohua Jia, Lei Wang, Wei Jin, Tianyi Ma
Summary: The study introduced the use of a metallic bismuth-tin aerogel for electrochemical reduction of CO2 with selective formic acid production, demonstrating high FEHCOOH and stability. Experimental and theoretical findings confirmed that the coexistence of bismuth and tin optimized the energy barrier for formic acid generation, enhancing catalytic activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Robert Kosydar, Michal Kolodziej, Erwin Lalik, Jacek Gurgul, Grzegorz Mordarski, Alicja Drelinkiewicz
Summary: The differences in hydrogenation activity of Pd/WO3 and Pd/MoO3 catalysts in polyfunctional reagents were studied. It was found that electronic interactions and the formation of hydrogen bronzes played significant roles in promoting selectivity and overall reaction rates.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Mechanical
Dzmitry S. Kharytonau, Malgorzata Zimowska, Jacek Gurgul, Grzegorz Mordarski, Robert Powalisz, Adam Rutowski, Grzegorz Putynkowski, Adam Zieba, Ukasz Mokrzycki, Robert P. Socha
Summary: This study analyzed the causes of corrosion failure in the cooling circuit of a molding plant and proposed recommendations to prevent further failures.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Materials Science, Multidisciplinary
Jan Mrowka, Robert Kosydar, Mariusz Gackowski, Jacek Gurgul, Lidia Litynska-Dobrzynska, Bartosz Handke, Alicja Drelinkiewicz, Magdalena Hasik
Summary: This study develops a new method for fabricating polysiloxane-based, porous HIPE-templated materials (polyHIPEs) containing palladium by cross-linking of poly(hydromethylsiloxane) (PHMS) with 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane (D-4(Vi)) in water-in-oil high internal phase emulsion (HIPE) with PdCl2 as the aqueous phase. The microstructure of the materials depends on the ratio of D-4(Vi) to PHMS and is influenced by the presence of PdCl2 in HIPE. The resulting polyHIPEs contain metallic Pd nanoparticles that strongly interact with the polysiloxane matrix they are dispersed in and exhibit fair selectivity in the hydrogenation reaction of phenylacetylene to styrene.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Kalina Grzelak, Maciej Trejda, Jacek Gurgul
Summary: The study revealed that cerium species loaded on mesoporous silica of MCF type can promote the dispersion of ruthenium species, leading to enhanced hydrogenation activity. However, excessive cerium loading had a negative impact on the textural parameters of the support.
Article
Chemistry, Physical
Bogna D. Napruszewska, Anna Walczyk, Dorota Duraczynska, Joanna Krysciak-Czerwenka, Alicja Michalik, Robert Karcz, Michal Sliwa, Ewa M. Serwicka
Summary: Cu-Mn mixed oxides are commonly used as combustion catalysts. This study presents a novel alkali-free route for synthesizing Cu-Mn-Al catalysts using organic bases as precipitating agents. The use of starch gel during co-precipitation resulted in fine crystalline precursors, which led to the formation of more active catalysts. Toluene combustion tests showed that the catalysts prepared with starch performed better than those obtained without starch.
Article
Chemistry, Physical
Patrycja Gnacek, Natalia Piergies, Dorota Duraczynska, Mikolaj Kozak, Czeslawa Paluszkiewicz, Magdalena Ocwieja
Summary: Research has shown that metal nanoparticles conjugated with anticancer drugs can function as drug carriers, enhancers of biological effects, and sensors for tracking drug fate. This study demonstrated the formation of stable conjugates of erlotinib with platinum nanoparticles, showing the relationship between the chemical structure of the conjugates and the type of metal nanoparticles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
P. Czaja, A. Boochani, J. Przewoznik, M. Yeganeh, A. Zelati, A. Yari, M. Amiri, S. Naderi, M. Fitta, D. Duraczynska, E. M. Serwicka, K. Stan-Glowinska, L. Litynska-Dobrzynskaa
Summary: The structural and catalytic properties of melt spun Ni3X (X=Al, Sn, Ga) ribbons were studied experimentally and theoretically. The ribbons showed mostly single phase microstructures, and weak magnetic behavior was observed in Ni3Ga and Ni3Al, while Ni3Sn exhibited paramagnetic behavior. Catalytic activity for semi hydrogenation of phenylacetylene was found in the ribbons, with Ni3Sn showing the highest conversion rate. Consistent with experimental results, density of states (DOS) diagrams calculated using GGA and HSE approximations represented weak magnetic and paramagnetic behavior, respectively. The thermodynamic phase diagram indicated that all the compounds were thermodynamically stable, with Ni3Al and Ni3Ga showing higher stability than Ni3Sn, suggesting potential catalytic applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Svitlana Orlyk, Pavlo Kyriienko, Andriy Kapran, Valeriy Chedryk, Dmytro Balakin, Jacek Gurgul, Malgorzata Zimowska, Yannick Millot, Stanislaw Dzwigaj
Summary: The research focused on the influence of BEA zeolite dealumination on the acid-base characteristics and catalytic performance of Zn-BEA compositions in propane dehydrogenation with CO2. The catalyst samples were prepared through a two-step post-synthesis procedure and characterized using various techniques. Full dealumination led to the formation of a mesoporous structure and decrease in acidity, resulting in enhanced selectivity and yield of propene. The results highlighted the advantages of using Zn-BEA catalysts in the presence of CO2 for producing the target olefin.
Article
Chemistry, Multidisciplinary
Alicja Michalik, Bogna D. Napruszewska, Dorota Duraczynska, Anna Walczyk, Ewa M. Serwicka
Summary: TiO2/montmorillonite composites were synthesized using inverse micellar route, resulting in the preparation of titania nanoparticles and dispersion of clay components. The composites were characterized and compared, showing that TiO2/Na-Mt series had higher specific surface area and pore volume compared to TiO2/CTA-Mt counterpart. Both series had uniform mesoporous structure with a dominant pore size of around 5 nm, similar to the dimensions of titania nanoparticles.
Article
Energy & Fuels
Erwin Lalik, Stewart F. Parker, Gavin Irvine, Ivan da Silva, Matthias Josef Gutmann, Giovanni Romanelli, Kacper Druzbicki, Robert Kosydar, Matthew Krzystyniak
Summary: This study characterizes the nuclear quantum dynamics of hydrogen in Pd/cWO(3) using neutron Compton scattering and ab initio modeling. Neutron Compton scattering, with its deeply penetrating nature and high sensitivity, is a powerful tool for investigating hydrogen dynamics in bulk matrices. The analysis reveals three pools of hydrogen with different nuclear quantum dynamical behavior: hydrogen-terminated beta-palladium hydride, hydrogen in acid centers on the surface of the cubic phase of tungsten oxide, and quasi-free atomic hydrogen resulting from the hydrogen spillover process. The theoretical predictions obtained from ab initio modeling provide insights into the momentum distribution of the quasi-free atomic hydrogen. The picture of the local dynamics of the quasi-free hydrogen is consistent with the proton polaron model of hydrogen-induced coloration of bulk hydrogenated WO3.
Article
Multidisciplinary Sciences
Rugmani Meenambal, Tomasz Kruk, Jacek Gurgul, Piotr Warszynski, Danuta Jantas
Summary: In this study, PAA-CeO nanoparticles were synthesized and found to have neuroprotective effects against cell damage induced by H2O2 and 6-OHDA, reducing necrotic changes and partially attenuating caspase-3 activity. However, there was no impact on ROS formation induced by H2O2.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Natalia Piergies, Magdalena Ocwieja, Julia Maciejewska-Pronczuk, Robert Kosydar, Czeslawa Paluszkiewicz, Wojciech M. Kwiatek
Summary: For the first time, this study proposes the combined use of surface-enhanced Raman spectroscopy (SERS), tip-enhanced infrared (TEIRA) nanospectroscopy, and quartz crystal microbalance (QCM) for comprehensive qualitative and quantitative analyses of drug/metal nanocarrier conjugates. The study focuses on erlotinib, a drug used in non-small cell lung cancer therapy, and its interaction with silver nanoparticles (AgNPs) as drug carriers. The results show the strong connection between the drug and the NPs mainly through the phenylacetylene moiety. The QCM is used to prepare an AgNP monolayer and determine the amount of erlotinib molecules immobilized on the metal nanosurface, while TEIRA nanospectroscopy provides ultra-high spatial resolution to identify the drug/AgNP monolayer connection.
Article
Chemistry, Multidisciplinary
Mohammad Sadegh Shakeri, Zaneta Swiatkowska-Warkocka, Oliwia Polit, Tatiana Itina, Alexey Maximenko, Joanna Depciuch, Jacek Gurgul, Marzena Mitura-Nowak, Marcin Perzanowski, Andrzej Dziedzic, Jaroslaw Necki
Summary: Phase formation by pulsed laser irradiation of suspended nanoparticles has been studied for its potential application as an electrocatalyst in ethanol oxidation fuel cells. The authors analyze the bond breaking/formation process during the absorption of laser pulses and discuss the interaction between nano-laser pulses and suspension for practical control of the synthesis process. The study provides insights into the dominant role of physical and chemical reactions in the formation of heterostructures.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Anna Pajor-Swierzy, Lilianna Szyk-Warszynska, Dorota Duraczynska, Krzysztof Szczepanowicz
Summary: In this study, a UV-Vis sintering process was used to fabricate conductive coatings composed of low-cost nickel-silver nanoparticles with core-shell structures. The metallic films were formed on a plastic substrate and the sintering was performed at a low temperature to protect the heat-sensitive polymer. The UV-Vis sintering method allowed for the production of metallic coatings with good conductivity at room temperature.
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
