Article
Materials Science, Ceramics
B. M. G. Melo, D. Blaskova-Kochnitcharova, S. Soreto Teixeira, E. Lefterova, P. Petkov, T. Petkova, L. C. Costa
Summary: Bulk samples of the ternary TiO2-V2O5-P2O5 system were synthesized using the melt-quenching technique. The structure and composition were identified using X-ray diffraction and scanning electron microscopy, with dielectric properties measured using impedance spectroscopy. Analysis of impedance spectra indicated a grain conductivity of 10-1 S/m at 190 degrees Celsius for the NASICON sample.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Guobo Li, Yaping Zhang, Peng Wu, Kai Shen, Shule Zhang, Shipeng Ding
Summary: To solve the problem of poor activity at low temperatures and SO2 poisoning, N-doped TiO2 was used as the support for designing a highly efficient and stable catalyst system for synergistic degradation of VOCs and NOx emitted from waste incineration. After N doping, the electronic structure of the catalyst was effectively modulated, facilitating effective charge flow between the catalyst surface and gas molecules. This prevented the adsorption and deposition of sulfur species and reaction intermediates on active centers, and provided a new N adsorption center for NOx, ensuring smooth CB/NOx synergistic degradation.
Article
Engineering, Chemical
Kaiwen Ni, Yuewang Peng, Geyu Dai, Huawang Zhao, Zhiwei Huang, Xiaomin Wu, Guohua Jing, Wei Feng, Ye Yuan
Summary: In this study, ceria was used to decorate a catalyst to enhance the decomposition of ammonia bisulfate in low-temperature NH3-selective catalytic reduction. The optimal catalyst showed accelerated ABS decomposition and superior SO2 tolerance at 250 degrees Celsius. The additive CeO2 improved the catalyst's specific surface area and acidity, favoring the catalytic activity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Environmental
Zhiping Si, Yongjie Shen, Jiebing He, Tingting Yan, Jianping Zhang, Jiang Deng, Dengsong Zhang
Summary: This study reveals the phenomenon of K migration induced by SO2 on K-poisoned catalysts, which buffers the effect of alkali poison and restores activity, leading to an increased conversion of NOx. The sulfuration process helps to release the active sites poisoned by K2O, thereby enhancing the catalyst activity.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Qi Gao, Changqing Dong, Xiaoying Hu, Junjiao Zhang, Quanjun Zheng, Junjie Xue, Ying Zhao, Xiaoqiang Wang
Summary: The core-shell structured CeO2@TiO2 nanorods exhibit high conversion rate in CO catalytic oxidation and good resistance to SO2. The core-shell structure mitigates the crystallinity loss and pore blockage of CeO2, protecting it from SO2 poisoning. In addition, TiO2 inhibits the reaction between SO2 and CeO2, delaying the deactivation of the CeO2 core. Moreover, the sulfate deposited on the core-shell structure has less amount and poorer thermal stability.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Thermodynamics
Yingju Yang, Jing Liu, Zhen Wang, Yingni Yu
Summary: Experiments and density functional theory calculations reveal that SO2 promotes Hg-0 oxidation over V2O5/TiO2 catalyst with the assistance of oxygen, depending on reaction temperature and the bimolecular reaction with SO3. SO2 is oxidized to high oxidation ability SO3 for Hg-0 oxidation, forming HgSO4 species.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Chemistry, Physical
Jiayu Song, Sarawoot Impeng, Jianping Zhang, Jiang Deng, Dengsong Zhang
Summary: This study elucidates the temperature-dependent sensitivity of vanadyl species to water via operando Raman spectroscopy. The stronger competitive adsorption of NH3 on polymeric vanadyl species in the presence of water dominates the NH3-SCR reaction above 250 degrees C, while the association of water molecules via hydrogen bonding dominates the activity degeneration to both monomeric and polymeric vanadyl species at temperatures below 250 degrees C.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Zhihua Lian, Hua Deng, Shaohui Xin, Wenpo Shan, Qiang Wang, Jun Xu, Hong He
Summary: The excellent NH3-SCR activity of vanadia-based catalysts with high rutile content and low specific surface area is attributed to the higher interaction energy between vanadia and anatase than rutile, as well as the synergistic effect of vanadium oxides, anatase, and rutile TiO2.
CHEMICAL COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Piotr Okoczuk, Natalia Anna Wojcik, Leon Murawski, Leszek Wicikowski, Marcin Stanislaw Lapinski, Piotr Winiarz, Barbara Koscielska
Summary: In this study, V2O5-TeO2 glass was prepared and its crystallization led to a significant increase in electrical conductivity and a decrease in activation energy. Existing charge transfer models, including Schnakenberg's and Friedman-Triberis', were found applicable to both glass and glass-ceramics. Structural studies revealed the main crystallizing phase to be Te2V2O9, which resulted in the reduction of vanadium ions and an increase in electrical conductivity.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Engineering, Environmental
Se Won Jeon, Inhak Song, Hwangho Lee, Joonwoo Kim, Youngchul Byun, Dong Jun Koh, Do Heui Kim
Summary: In this study, a hybrid catalyst was introduced, which exhibited better stability and sulfur tolerance during SO2 aging. The hybrid catalyst achieved the direct migration of ammonium bisulfate from the vanadia domain to the alumina domain through physical contact, rather than gas-phase adsorption. The surface properties of the mixed alumina played an important role in its affinity to ammonium bisulfate and reusability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Young Kyu Bae, Tae-Wan Kim, Jeong-Rang Kim, Youngmin Kim, Kyoung-Su Ha, Ho-Jeong Chae
Summary: The study found that co-injection of NH3 and AN during NH3-SCR not only effectively suppressed ABS formation, but also enhanced catalytic performance at low temperatures by restoring deactivated active sites.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Environmental
Xiangyu Liu, Penglu Wang, Yongjie Shen, Lirong Zheng, Lupeng Han, Jiang Deng, Jianping Zhang, Aiyong Wang, Wei Ren, Feng Gao, Dengsong Zhang
Summary: SO2-resistant NOx reduction has been enhanced by modulating electronic interaction of short-range Fe-O coordination over Fe2O3/TiO2 catalysts. Sulfur doping exerts strong electronic perturbation to TiO2, causing a net charge transfer from Fe2O3 to TiO2 via increased short-range Fe-O coordination. This electronic effect simultaneously weakens charge transfer from Fe2O3 to SO2 and enhances that from NO/NH3 to Fe2O3.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Applied
Tae Hun Kang, Seunghee Youn, Do Heui Kim
Summary: The study examined the performance of V2O5-WO3/TiO2 and Fe2O3 physically mixed catalysts in SCR reactions, revealing that the addition of Fe2O3 can enhance the stability and SO2 resistance of the catalyst. Fe2O3 suppresses the formation of ammonium sulfate species, increases Brønsted acid sites, and improves NOx conversion.
Article
Chemistry, Multidisciplinary
Min Seong Lee, Sun- Kim, Bora Jeong, Jin-Woo Park, Taehyo Kim, Jung Woo Lee, Gibum Kwon, Duck Hyun Lee
Summary: Research on coating an NH4+ layer on a vanadium-based catalyst can significantly improve its NOX removal efficiency over a wide temperature range, as well as enhance its proton conductivity, reducing the amount of vanadium oxides and tungsten oxide.
Article
Energy & Fuels
Lijun Liu, Sheng Su, Dezhi Chen, Tao Shu, Xiaotao Zheng, Jiuyang Yu, Yu Feng, Yi Wang, Song Hu, Jun Xiang
Summary: The MnFeW/Ti composite oxide catalyst exhibits excellent SCR activity, N-2 selectivity and SO2 tolerance due to the formation of Mn-O-W and Fe-O-W bonds, which accelerate the SCR reaction rate. By tuning surface acidity via W doping, the oxidation of SO2 is inhibited, leading to improved performance at low temperature.
Article
Engineering, Environmental
Krisiam Ortiz-Martinez, Pratap Reddy, Wilman A. Cabrera-Lafaurie, Felix R. Roman, Arturo J. Hernandez-Maldonado
JOURNAL OF HAZARDOUS MATERIALS
(2016)
Article
Engineering, Environmental
Rajesh M. Dhoble, Pratap Reddy Maddigapu, Sadhana S. Rayalu, A. G. Bhole, Ashwinkumar S. Dhoble, Shubham R. Dhoble
JOURNAL OF HAZARDOUS MATERIALS
(2017)
Article
Physics, Atomic, Molecular & Chemical
Girivyankatesh Hippargi, Pratap Reddy Maddigapu, Nitin Labhsetwar, Sadhana Rayalu
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B
(2017)
Article
Environmental Sciences
Rajesh Manoharrao Dhoble, Pratap Reddy Maddigapu, Anand Govind Bhole, Sadhana Rayalu
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Engineering, Environmental
Pratap Reddy Maddigpu, Bhairavi Sawant, Snehal Wanjari, M. D. Goel, Davide Vione, Rita S. Dhodapkar, S. Rayalu
JOURNAL OF HAZARDOUS MATERIALS
(2018)
Article
Environmental Sciences
Pratap Reddy Maddigapu, Claudio Minero, Valter Maurino, Davide Vione, Marcello Brigante, Gilles Mailhot
Article
Engineering, Environmental
Pratap Reddy Maddigapu, Marco Minella, Davide Vione, Valter Maurino, Claudio Minero
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2011)
Article
Environmental Sciences
Pratap Reddy Maddigapu, Davide Vione, Barbara Ravizzoli, Claudio Minero, Valter Maurino, Laetitia Comoretto, Serge Chiron
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2010)
Article
Chemistry, Physical
Tiffany Charbouillot, Marcello Brigante, Gilles Mailhot, Pratap Reddy Maddigapu, Claudio Minero, Davide Vione
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2011)
Article
Biochemistry & Molecular Biology
Pratap Reddy Maddigapu, Andrea Bedini, Claudio Minero, Valter Maurino, Davide Vione, Marcello Brigante, Gilles Mailhot, Mohamed Sarakha
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2010)
Article
Biochemistry & Molecular Biology
Pratap Reddy Maddigapu, Claudio Minero, Valter Maurino, Davide Vione, Marcello Brigante, Tiffany Charbouillot, Mohamed Sarakha, Gilles Mailhot
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2011)
Article
Engineering, Environmental
Davide Vione, Pratap Reddy Maddigapu, Elisa De Laurentiis, Marco Minella, Marco Pazzi, Valter Maurino, Claudio Minero, Sofia Kouras, Claire Richard
Article
Chemistry, Physical
Abhay Vijay Kotkondawar, Priti Mangrulkar, Snehal Wanjari, Pratap Reddy Maddigapu, Sadhana Rayalu
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Engineering, Electrical & Electronic
Harkirat Kaur, Rashmi Dahake, Pratap Reddy Maddigapu, Girivyankatesh Hippargi, Girish R. Pophali, Amit Bansiwal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Environmental Sciences
Aditi Kulkarni, Kiran Manohar, Girivyankatesh Hippargi, Pratap Reddy Maddigapu, Rita Dhodapkar, Sadhana Suresh Rayalu
Summary: Solar pasteurization is a reliable and cost-effective method for eliminating microbial pathogens in water. This study presents a nano-SODIS bottle coated with plasmonic carbon nanoparticles (CNP) that effectively kills targeted pathogens through nanophotonic-triggered thermal enhancement. The CNPs have high solar radiation harvesting efficiency and can generate powerful heating to inactivate microorganisms. The nano-SODIS bottles achieved a temperature of 65-70 degrees C within 90 minutes of solar exposure, resulting in a threefold reduction in disinfection period compared to conventional methods. The CNP-coated bottles provide a simple, durable, and user-friendly solution for providing pathogen-free drinking water in rural and slum areas.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
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)
