Review
Thermodynamics
A. S. Mehr, A. Lanzini, M. Santarelli, Marc A. Rosen
Summary: There is a growing interest in high temperature fuel cells for their potential in multi-service applications. Integration of SOFC and MCFC systems is receiving much attention for proposing polygeneration plants. The most common polygeneration designs involve utilizing the exhaust gases from fuel cell systems for heat recovery.
Article
Chemistry, Physical
Hideshi Ooka, Marie E. Wintzer, Ryuhei Nakamura
Summary: Recent experimental studies have found that platinum has higher activity compared to thermoneutral catalysts, challenging previous theories. This suggests that thermoneutrality may not be the ideal direction for catalyst design as traditionally considered.
Review
Chemistry, Applied
Mingcheng Zhang, Kexin Zhang, Xuan Ai, Xiao Liang, Qi Zhang, Hui Chen, Xiaoxin Zou
Summary: This article summarizes the fundamental aspects of catalytic theories commonly used in the design of electrocatalysts, and introduces the basic mechanisms and challenges of the hydrogen evolution reaction, the oxygen evolution reaction, the oxygen reduction reaction, the CO2 reduction reaction, and the nitrogen reduction reaction, as well as the role of theory in addressing these challenges.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Ziyi Lu, Hanfei Zhang, Liqiang Duan, Qiushi Wang, Ruiyun Zhang, Chengzhuang Lu
Summary: The proper selection of operating conditions for MCFCs can improve power generation efficiency, reduce carbon emissions, and contribute to achieving carbon neutrality.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Multidisciplinary
Xiaobo Jia, Baosheng Liu, Jinghua Liu, Shaohui Zhang, Zijun Sun, Xiong He, Hongda Li, Guofu Wang, Haixin Chang
Summary: A NiO-carbon nanotube/sulfur composite was developed through hydrothermal and thermal treatments, combining the high conductivity of CNTs and double adsorption of CNTs and NiO to enhance the electrochemical performance for the sulfur electrodes. The NiO-CNT/S composites exhibit a preferable initial reversible discharge capacity of 1072 mA h g(-1) and maintain at 609 mA h g(-1) after 160 cycles at 0.1C, outperforming CNT/S and NiO/S.
Article
Chemistry, Physical
Yan Cao, Ehab Hussein Bani Hani, Ibrahim B. Mansir, Mehdi Safarzadeh
Summary: This study investigated a novel hybrid energy system consisting of a molten carbonate fuel cell and different options to generate hydrogen, using innovative tri-objective optimization methods for comprehensive analysis. Results showed that fuel utilization factor, stack temperature, and current density have the most critical effect on system performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Ziyi Lu, Liqiang Duan, Zhen Wang
Summary: This paper proposes a novel combined cooling, heating, and power system integrated with MCFC, ISCC, and DEALBR system. The system utilizes energy cascade utilization principle and solar energy to optimize waste heat utilization and heating load. Through modeling and exergy analysis, the system's performance is evaluated. The results show that the new system can meet the user's requirements for electric power, cooling load, and heating load simultaneously.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Electrical & Electronic
Saurabh K. Sharma, Manos P. C. Kalita
Summary: A comprehensive study on the microstructure of chemically prepared NiO nanocrystals was conducted, and their optical properties and photocatalytic activities were investigated. The analysis revealed a crystal size of approximately 12 nm, emissions related to defects, and enhanced photocatalytic activities in NiO-CdS nanocomposites.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
E. Gurbuz, S. Hubert, L. Jordan, V. Albin, A. Ringuede, V. Lair, M. Cassir
Summary: This study systematically synthesized matrices in Molten Carbonate Fuel Cell with reinforcing agents, either Al powder or Al2O3 fibers, and carbonates, and analyzed the effects on mechanical strength and porosity after subsequent lithiation. The reaction was found to be quantitative at 650 degrees C, with matrices featuring reinforcing agents and carbonates showing increased mechanical strength by a factor up to 2 compared to matrices with only reinforcing agents. Al powder was found to be better suited than Al2O3 fibers for addition in a matrix, enhancing porosity after lithiation.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Liam J. Dodd, Cassio Lima, David Costa-Milan, Alex R. Neale, Benedict Saunders, Bowen Zhang, Andrei Sarua, Royston Goodacre, Laurence J. Hardwick, Martin Kuball, Tom Hasell
Summary: Inverse vulcanised polymers have been studied due to their easy and cheap synthesis from elemental sulfur, resulting in a wide range of valuable properties. However, the high sulfur content makes the polymers difficult to analyze. This study presents the use of Raman spectroscopy to better understand the structure and properties of these polymers. It was found that Raman spectroscopy can provide key information about the elemental sulfur content, homogeneity, reactions, and proportions of different sulfur ranks in the polymer.
Article
Chemistry, Physical
Manli Zhu, Jun Wu, Shiqi Li, Xinjiang Luo, Beibei Zhang, Mianjiao Jiang, Xiaobang Xu, Weiqin Sheng, Junming Xu, Kaixin Song
Summary: By designing and utilizing a novel sulfur-loading composite of C/Ni/NiO, the performance of Li-S batteries has been significantly improved, exhibiting high initial capacity, low capacity decay, and high rate capability.
Article
Energy & Fuels
Yanggu Liu, Shoujie Guan, Xuesen Du, Yanrong Chen, Yang Yang, Kunlu Chen, Ziwen Zheng, Xing Wang, Xiaoqiang Shen, Chenlong Hu, Xinbao Li
Summary: Experimental outcomes and DFT calculations demonstrate that the catalytic performance of 2D MoS2 can be enhanced by doping transition-metal atoms and introducing S-vacancies. Different metal-doped 2D MoS2 catalysts show varying catalytic activities, with Cu-doped 2D MoS2 exhibiting superior electrochemical performance.
Article
Energy & Fuels
Yanggu Liu, Shoujie Guan, Xuesen Du, Yanrong Chen, Yang Yang, Kunlu Chen, Ziwen Zheng, Xing Wang, Xiaoqiang Shen, Chenlong Hu, Xinbao Li
Summary: The catalytic performance of inert 2D MoS2 surfaces in electrochemical water splitting can be improved by doping transition-metal atoms and introducing S-vacancies. Different metal-doped 2D MoS2 samples show varying catalytic activity, with Cu-doped MoS2 exhibiting the lowest overpotential and excellent stability. DFT calculations reveal that S-vacancies and metal ion doping alter the adsorption behavior of H atoms, explaining the superior performance of Cu-doped 2D MoS2.
Article
Engineering, Electrical & Electronic
Jhalak Gupta, Arham Shareef Ahmed
Summary: The study investigated the dielectric, impedance, modulus, and conductivity properties of Co3O4, NiO, and Co3O4-NiO nanocomposites with varying NiO concentrations. It was found that dielectric constant, conductivity, and activation energy are influenced by temperature, frequency, and concentration. The AC conduction mechanism was analyzed based on the Correlated Barrier Hopping and Non-Overlapping Small Polaron tunneling models. The Nyquist plot and AC conductivity variation as a function of temperature provided insights into the material's electrical conduction behavior.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Chemical
Indika K. Hewavitharana, Yi Ding, K. Y. Simon Ng, Da Deng
Summary: This study successfully prepared three-dimensional porous NiO nanorod-pillared delta-MnO2 nanosheets as lithium-free cathode materials with high specific capacity and cycle stability. The results demonstrate that inserting pillars is a promising strategy that can effectively mitigate the restacking issues of monolayer MnO2 and achieve electrochemical performances close to theoretical values.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Physical
Jaroslaw Milewski, Karol Cwieka, Arkadiusz Szczesniak, Lukasz Szablowski, Tomasz Wejrzanowski, Jakub Skibinski, Olaf Dybinski, Aleksandra Lysik, Arkadiusz Sienko, Pawel Stanger
Summary: The study explores the possibility of enhancing the manufacturing process of MCFC cathodes by utilizing precious, semi-precious, and rare earth metals obtained from waste electric and electronic equipment (WEEE). As MCFC components are not sensitive to ceramic and metal impurities, the addition of noble metals recovered from WEEE as catalysts is economically viable. Experimental research demonstrates the positive impact of using 20% recycled electronic scrap in fabricating MCFC cathodes, with powder marked as 4/1 showing superior performance at 550 degrees C compared to the reference cell.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Mubashir Mansoor, Mehya Mansoor, Maryam Mansoor, Ammar Aksoy, Sinem Nergiz Seyhan, Betul Yildirim, Ahmet Tahiri, Nuri Solak, Kursat Kazmanli, Zuhal Er, Kamil Czelej, Mustafa Urgen
Summary: This study investigates the formation energy and equilibrium state of point defects in diamond through theoretical calculations. Monolithic-Kroger-Vink diagrams are plotted to represent the relationship between defect concentrations and heat treatment parameters. The method successfully predicts experimental data and provides new insights for the heat treatment of diamond and other materials.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Physical
Rafal Maksymilian Molak, Bartosz Moronczyk, Ewa Ura-Binczyk, Zbigniew Pakiela, Wojciech Zorawski, Krzysztof Jan Kurzydlowski, Seiji Kuroda
Summary: Aluminium (Al) and titanium (Ti) coatings were applied on AZ91E magnesium alloy using a low-pressure warm spray method with different nitrogen flow rates (NFR). The effects of NFR on coating microstructure and physical properties were systematically studied. The results showed that decreasing NFR resulted in denser and more compact coatings, but also increased powder oxidation. Al coatings exhibited lower hardness and wear resistance compared to Ti coatings, but were more suitable for corrosion protection due to their low porosity and high compactness.
Article
Chemistry, Physical
Marta Dobrosielska, Renata Dobrucka, Dariusz Brzakalski, Milosz Frydrych, Paulina Kozera, Monika Wieczorek, Marek Jalbrzykowski, Krzysztof J. Kurzydlowski, Robert E. Przekop
Summary: Fractionation of diatomaceous earth allowed for obtaining a range of particle sizes, with modification using the smallest particles resulting in improved impact strength, melt flow rate, and elasticity of the PLA composite material.
Review
Biotechnology & Applied Microbiology
Soumya Koippully Manikandan, Dimitrios A. Giannakoudakis, Jovana R. Prekodravac, Vaishakh Nair, Juan Carlos Colmenares
Summary: This article focuses on the use of material supports for developing immobilized biocatalysts in various applications. Different types of materials, including organic, inorganic, and composites, have been shown to be effective for supporting the immobilization of enzymes and microbial cells. Nanomaterial supports offer advantages such as large surface area and comfortable compartments for immobilization. The choice of catalyst support depends on the interaction between the material and the enzyme or microbial cell.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Polymer Science
Marta Dobrosielska, Renata Dobrucka, Paulina Kozera, Rafal Kozera, Marta Kolodziejczak, Ewa Gabriel, Julia Glowacka, Marek Jalbrzykowski, Krzysztof J. Kurzydlowski, Robert E. Przekop
Summary: Amorphous diatomite was used as a filler for polyamide 11 to produce biocomposites with improved mechanical properties. The diatomite particles were fractionated by sedimentation to obtain powders with different particle size distributions. Biocomposites with varied filler content were tested for mechanical properties and analyzed for particle size distribution, filler dispersion, and thermal parameters. The results showed that biocomposites modified with diatomaceous earth exhibited higher mechanical strength, especially with larger amounts of filler. The sedimentation process used in this study can be applied on an industrial scale for the production of biocomposites.
Article
Physics, Applied
Raghottam M. Sattigeri, Prafulla K. Jha, Piotr Spiewak, Krzysztof J. Kurzydlowski
Summary: This study demonstrates that the conducting edge states in 2D topological insulators can facilitate excellent catalytic response, opening up possibilities for high-performance and efficient catalysts.
APPLIED PHYSICS LETTERS
(2022)
Article
Biochemistry & Molecular Biology
Piya Roychoudhury, Aleksandra Golubeva, Przemyslaw Dabek, Oleksandra Pryshchepa, Gulyaim Sagandykova, Pawel Pomastowski, Michal Gloc, Renata Dobrucka, Krzysztof Kurzydlowski, Boguslaw Buszewski, Andrzej Witkowski
Summary: In this study, Pseudostaurosira trainorii mediated biosynthesized iron-oxide nanoparticles (IONPs) were used as nanostructures to assist ionization and desorption in laser desorption/ionization mass spectrometry (LDI-MS). These biogenic IONPs showed high catalytic properties and sensitivity towards small molecules, demonstrating their potential application in future nanobiotechnology and preparation of NALDI plates.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Physics, Condensed Matter
Mubashir Mansoor, Mehya Mansoor, Maryam Mansoor, Zuhal Er, Kamil Czelej, Mustafa Uergen
Summary: Functional materials for high-pressure transduction are limited, making them highly sought after. Zirconium silicate has been suggested as a Raman spectroscopic pressure sensor, as hydrostatic pressures greatly influence its Raman shifts. However, there are numerous challenges in mass applications of Raman-based sensor technology. In addition, we found that ZrSiO4 exhibits pressure-dependent infrared spectra and its IR peaks are sensitive to shear stresses and non-hydrostatic pressures, making it a unique sensor for determining various mechanical stresses through IR spectroscopy.
SOLID STATE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Michal Stor, Kamil Czelej, Andrzej Krasinski, Leon Gradon
Summary: Halloysite particles, with their unique multilayer nanostructure, are demonstrated as highly efficient sorbent of heavy metals. Various purification methods were applied to obtain a developed structure. DFT calculations and experimental results confirm the high sorption potential of modified halloysite towards heavy metals.
Article
Materials Science, Multidisciplinary
Lukasz Werner, Zuzanna Bojarska, Marta Mazurkiewicz-Pawlicka, Kamil Czelej, Boguslaw Mierzwa, Lukasz Makowski
Summary: This study presents a novel and facile synthesis method for ReS2 nanoparticles through wet chemical synthesis and annealing. The crystallinity and phase composition of the nanoparticles can be tuned by controlling the process parameters. The synthesized nanoparticles exhibit superior electrocatalytic hydrogen generation performance compared to commercially available ReS2, which can be explained by the formation of ReS2/ReO3 nanocomposites where a small fraction of metallic ReO3 decorates ReS2 nanoparticles. Density functional theory calculations provide insights into the electronic structure and the beneficial impact of ReO3 on the electrocatalytic performance of ReS2 nanoparticles. These findings have important implications for optimizing the electrocatalytic performance of ReS2 nanoparticles and provide a facile strategy for their efficient synthesis.
APPLIED MATERIALS TODAY
(2023)
Article
Materials Science, Multidisciplinary
Mark Fedorov, Jan S. Wrobel, Witold Chrominski, Grzegorz Cieslak, Magdalena Plocinska, Krzysztof J. Kurzydlowski, Duc Nguyen-Manh
Summary: The relative phase stability of fcc and bcc Cr-Fe-Mn-Ni alloys was studied using density functional theory, cluster expansion (CE), and Monte Carlo (MC) simulations. The CE models enabled the calculation of Gibbs free energies of formation for different compositions, and the MC simulations provided insights into the stability of these alloys at different temperatures. The results obtained were in line with experimental data and helped identify the alloys that are predicted to have a single fcc phase over a wide temperature range.
Article
Engineering, Environmental
Karol Cwieka, Zuzanna Bojarska, Kamil Czelej, Dariusz Lomot, Przemyslaw Dziegielewski, Alexey Maximenko, Kostiantyn Nikiforow, Leon Grado, Ming-Yu Qi, Yi-Jun Xu, Juan Carlos Colmenares
Summary: In this study, atomically dispersed Cu on TiO2 composite nanoparticles synthesized by the wet impregnation method were shown to be highly active and selective in hydrogen production by photoreforming of methanol. The photocatalyst exhibited a significant quantum efficiency and clean and sustainable characteristics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Madhavi H. Dalsaniya, Krzysztof Jan Kurzydlowski, Dominik Kurzydlowski
Summary: Understanding the properties of molecular solids at high pressure is crucial for the development of new solid-state theories. This study applies a hybrid density functional theory approach to simulate the behavior of elemental bromine under high pressure. The results accurately reproduce experimental observations and provide insights into the metallic properties of different phases.
Article
Chemistry, Physical
Karol Cwieka, Jakub Skibinski
Summary: The elastic properties of open-cell metallic foams are influenced by both relative density and pore size variation. The Young's modulus and Poisson's ratio can be reduced when there is an increase in pore size variation, even with similar porosity.
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)
