Article
Chemistry, Physical
Angelina Zhurenok, Dina Markovskaya, Evgeny Y. Gerasimov, Alexander S. Vokhmintsev, Ilya A. Weinstein, Igor P. Prosvirin, Svetlana Cherepanova, Andrey Bukhtiyarov, Ekaterina A. Kozlova
Summary: Two types of photocatalysts were synthesized by varying the deposition order of platinum, and their catalytic performance was tested under visible light. It was found that the ternary photocatalyst Cd1-xZnxS/1%Pt/g-C3N4 with platinum located on the g-C3N4 surface showed a higher hydrogen evolution rate compared to single-phase platinized 1%Pt/Cd1-xZnxS photocatalysts.
Article
Chemistry, Physical
Jing Wang, Yuhua Ma, Xinquan Jiang, Hong Du
Summary: The twin structure in Cd1-xZnxS solid solution based on sphalerite/wurtzite (ZB/WZ) heterophase junction has been shown to enhance charge separation efficiency and inhibit charge recombination during photocatalysis. The presence of ZB/WZ heterophase junction in Cd0.6Zn0.4S reduces recombination of photogenerated charge carriers, leading to improved photocatalytic activity and stability for hydrogen production under visible light irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Tianfeng Hou, Jun Liang, Lin Wang, Zhaohui Zheng, Jiahong Wang, Xiwen Xing, Hongting Tang, Cuiping Zeng, Bo Wang
Summary: In this study, a series of Zn-dopped CdS photocatalysts with various band structures were synthesized by engineered Escherichia coli through varying the ratios of Zn2+/Cd2+ in the bacterial culture medium. The biomineralized Cd1-xZnxS showed significantly increased material loading and the Cd1-xZnxS with a 0.044 molar ratio of Zn/Cd exhibited the highest photocatalytic hydrogen evolution rate under simulated sunlight, outperforming chemically synthesized Cd1-xZnxS.
MATERIALS TODAY ENERGY
(2021)
Article
Materials Science, Ceramics
Jing Wang, Jiajia Li, Lu Xiao, Dilnur Kurbanjan, Hong Nie, Hong Du
Summary: Efficient charge separation is achieved by porous Cd1-xZnxS nanosheets with twinned phase junctions, resulting in high photocatalytic activity for hydrogen generation. The synergy of phase junctions and porous structure improves the separation efficiency of photoelectron-hole pairs and provides more surface active sites, leading to enhanced light absorption capacity and high hydrogen evolution rate.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Engineering, Electrical & Electronic
Pavan. P. Gotipamul, Karthik Dilly Rajan, Shweta Khanna, Maheswaran Rathinam, Siva Chidambaram
Summary: Metal nanoparticles-decorated semiconductor nanomaterials, such as Au-decorated Cd1-xZnxS nanocomposites, have shown enhanced photocatalytic activity, with the Au-decorated Cd0.25Zn0.75S nanocompound exhibiting 97% photocatalytic degradation of MB dye molecules under sunlight exposure.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Angelina V. Zhurenok, Dina V. Markovskaya, Evgeny Yu. Gerasimov, Svetlana V. Cherepanova, Andrey V. Bukhtiyarov, Ekaterina A. Kozlova
Summary: By precisely arranging platinum nanoparticles on the surface of titanium dioxide, ternary composite photocatalysts can achieve efficient charge separation, leading to a higher rate of hydrogen formation.
Article
Chemistry, Physical
Zhiguo Lv, Yilin Wang, Ying Liu, Jinming Wang, Guohui Qin, Zhenmei Guo, Chao Zhang
Summary: Finding a low-cost substitute for Pt in the CdS-based photocatalytic area is necessary. In this study, NiB was proposed as a replacement for Pt to enhance H-2 production. The results showed that CdS@NiB exhibited a significantly higher H-2 generation rate compared to CdS and CdS@Pt, indicating the synergistic effect between NiB and CdS in improving the photogenerated charge carrier separation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Yu-Cheng Chang, Cheng-Jyun Zeng, Chin-Yi Chen, Chien-Yie Tsay, Gang-Juan Lee, Jerry J. Wu
Summary: Porous TiO2 nanofiber was successfully synthesized and hierarchical core-shell TiO2/NiS/Pt nanofiber was fabricated by depositing NiS and Pt nanoparticles on the surface of TiO2 nanofiber. The TiO2/NiS/Pt nanofiber showed enhanced photocatalytic activity for hydrogen evolution under visible light excitation, attributed to increased visible light absorption and efficient charge separation. The nanofiber also exhibited good stability and reusability in long-term photocatalytic process, and could be used under different water bases for photocatalytic hydrogen production.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
Anuja A. Yadav, Yuvaraj M. Hunge, Seok-Won Kang
Summary: In this study, a CeO2/MoS2 composite photocatalyst was successfully synthesized, exhibiting superior hydrogen production performance compared to individual CeO2 and MoS2. The composite showed higher photostability and faster charge transfer rate.
Article
Engineering, Chemical
Zhenhui Lv, Peng Liu, Yiyi Zhao, Chong Peng, Xin-Yu Meng, Yun-Xiang Pan
Summary: In this study, a CdS/Pt/ZP48 photocatalyst for visible-light-driven photocatalytic H-2 production from H2O was successfully prepared. The photocatalyst exhibited a higher H-2 production rate, superior stability, and higher quantum efficiency compared to other catalysts. The results provide guidance for developing more efficient photocatalysts using Zeolites.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Environmental
Yerin Hong, Yongjoon Cho, Eun Min Go, Pankaj Sharma, Hyeonjin Cho, Byongkyu Lee, Sang Myeon Lee, Sung O. Park, Myohwa Ko, Sang Kyu Kwak, Changduk Yang, Ji-Wook Jang
Summary: The study introduced a hydrophobic organic/inorganic photocatalyst that can utilize visible light and suppress H2O2 decomposition, leading to improved H2O2 production efficiency.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Ksenia O. Potapenko, Anna Yu. Kurenkova, Andrey V. Bukhtiyarov, Evgeny Yu. Gerasimov, Svetlana V. Cherepanova, Ekaterina A. Kozlova
Summary: A series of solid solutions of Cd1-xMnxS and composite photocatalysts CdS-beta-Mn3O4-MnOOH were synthesized and studied, showing high activity in hydrogen evolution under visible light. The solid solution Cd0.65Mn0.35S exhibited enhanced photocatalytic activity while the CdS-beta-Mn3O4-MnOOH samples were active due to ternary heterojunction formation. The CdS-beta-Mn3O4-MnOOH composite photocatalyst demonstrated higher stability compared to the Cd0.65Mn0.35S solid solution, with the highest activity at 600 mmol g(-1) h(-1) and an apparent quantum efficiency of 2.9% at a wavelength of 450 nm.
Article
Chemistry, Multidisciplinary
Jiao He, Hongli Zhou, Guo Xiao, Yongjuan Chen, Zhiying Yan, Jiaqiang Wang
Summary: In the past few decades, many new synthesis techniques have been developed to obtain an effective visible-light responsive photocatalyst for hydrogen production by water splitting. Biotemplated synthesis method has gained significant attention due to its unique advantages in preparing materials with special morphology and structure. This study successfully synthesized a CdS photocatalyst using Hydrilla verticillata as a biotemplate, which exhibited a six times higher activity for photocatalytic hydrogen production compared to CdS synthesized without a template. Further improvement in hydrogen production rate to 14.86 mmol/g·h was achieved by using Pt and PdS as cocatalysts under visible-light irradiation. The synthesized CdS photocatalyst demonstrated a high specific surface area and narrow band gap, favorable for light absorption and photocatalytic reaction. This work provides a new approach to search for efficient visible-light catalysts and confirms the uniqueness of biotemplated synthesis method in obtaining specially structured materials.
Article
Chemistry, Multidisciplinary
Mahadeo P. Mahadik, Ruturaj Patil, Weon-Sik Chae, Hyun Hwi Lee Lee, Min Cho Cho, Jum Suk Jang Jang
Summary: This study presents a rapid microwave synthesis route for morphology-controlled Cu2S:ZnIn2S4 marigold-like nanoflower heterojunction photocatalysts. The Cu-to-Zn-metal cation ratios were used to control the Cu2S:ZnIn2S4 heterojunction, and the optimum electronic interaction was achieved in microwave-assisted 5 mol.% Cu2S:ZnIn2S4 heterojunction. The Pt loaded Cu2S:ZnIn2S4 nanoflowers exhibited enhanced photocatalytic H2 production under visible light irradiation.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Environmental Sciences
Kamakshaiah Charyulu Devarayapalli, Jie Zeng, Dae Sung Lee, S. V. Prabhakar Vattikuti, Jaesool Shim
Summary: This paper reports the development of advanced functional materials for photocatalytic hydrogen generation using abundant solar energy. Platinum quantum sized particles were deposited on bismuth oxybromide nanostructures, resulting in improved photocatalytic activity due to the synergistic effect of exposed (101) and (110) planes. The synthesized nanostructure catalyst showed significantly higher hydrogen generation efficiency compared to bare bismuth oxybromide.
Article
Chemistry, Physical
Serguei Tikhov, Tatiana Minyukova, Konstantin Valeev, Svetlana Cherepanova, Andrey Saraev, Vasily Kaichev, Egor Aidakov, Oleg Smorygo, Anastasia Vazhnova, Vitali Mikutski
Summary: Mechanochemical alloying and subsequent hydro-thermal treatment and calcination were used to synthesize ceramometal catalysts with Cu + Al and Cu + Fe + Al powders. CuAl + Cufoam and CuFeAl + Cufoam ceramometal catalysts reinforced with Cu foam were also synthesized. CuAl ceramometals showed higher activity in the water-gas shift reaction due to a higher concentration of active sites on their surface. The activity of ceramometal granules was enhanced by the integration with foam Cu, resulting in a higher thermal conductivity and improved catalytic properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Svetlana A. Yashnik, Tatjana A. Surovtsova, Anton V. Salnikov, Valentin N. Parmon
Summary: The preparation route of the catalyst affects the properties of the resulting catalyst. Cu-MFI (silicalite) obtained by solid-state transformation showed the formation of Cu ion clusters near the surface and subsurface of zeolite crystals. The samples had Cu2+ oxide clusters and CuO nanoparticles, which showed poor redox properties and activity towards different solvents.
Article
Chemistry, Physical
Olga A. Bulavchenko, Valeriya P. Konovalova, Andrey A. Saraev, Anna M. Kremneva, Vladimir A. Rogov, Evgeny Yu. Gerasimov, Tatyana N. Afonasenko
Summary: MnOx-ZrO2 catalysts were prepared using co-precipitation and vacuum impregnation methods and characterized through various techniques. The co-precipitated samples showed higher catalytic activity in CO oxidation compared to the vacuum impregnation samples. The results of the characterization studies revealed differences in the active components of the two preparation methods. For impregnation, the most active catalyst was obtained at 400 degrees C due to the formation of MnO2 oxide nanoparticles with Mn4+ and low-temperature reducibility. On the other hand, co-precipitation at 650-700 degrees C formed the most active CO oxidation catalysts. In this temperature range, a solid solution of MnyZr1-yO2-x and highly dispersed and active MnOx were formed.
Article
Chemistry, Physical
Tatyana N. N. Afonasenko, Daria V. V. Yurpalova, Zakhar S. S. Vinokurov, Andrey A. A. Saraev, Egor E. E. Aidakov, Valeriya P. P. Konovalova, Vladimir A. A. Rogov, Olga A. A. Bulavchenko
Summary: The MnOx-ZrO2-CeO2 oxide catalysts were synthesized and their catalytic properties were studied. The Zr/Zr + Ce molar ratio had little effect on the catalytic activity, while the manganese content exhibited a volcano-like dependence in CO oxidation and a linear increase in propane oxidation. XRD and XPS analysis revealed an increase in crystalline manganese oxides and surface concentration of manganese with increasing Mn concentration in the catalyst, while the content of MnxZryCe1-x-yO2 solid solution decreased. The CO oxidation activity was determined by the balance between the solid solution and the concentration of manganese cations, while the propane oxidation activity was less sensitive to the state of manganese ion.
Article
Chemistry, Physical
Andrey A. A. Saraev, Anna Y. Y. Kurenkova, Angelina V. V. Zhurenok, Evgeny Y. Y. Gerasimov, Ekaterina A. A. Kozlova
Summary: Photocatalysts based on g-C3N4 were investigated for CO2 reduction under visible light. The photocatalysts were prepared by calcination of melamine at 500-600 degrees C with platinum deposition. The effect of preparation conditions and platinum deposition method on the properties and activity of the photocatalysts was studied.
Article
Energy & Fuels
E. V. Parkhomchuk, K. V. Fedotov, A. I. Lysikov, A. V. Polukhin, E. E. Vorobyeva, I. A. Shamanaeva, N. N. Sankova, D. O. Shestakova, D. M. Reshetnikov, A. V. Volf, A. V. Kleymenov, V. N. Parmon
Summary: The study focuses on testing hierarchical meso-macroporous catalysts for three-stage hydroprocessing of atmospheric and vacuum residues. The properties of fresh and spent catalysts, the selection of optimal parameters for hydroprocessing, and the properties of petroleum products produced under optimal conditions were investigated. Various characterization techniques were used, including XRD, nitrogen adsorption-desorption, Hg-intrusion, SRXRF, TPD-NH3, and SEM. The proposed technology allows for the production of valuable oil products and MARPOL marine fuel that meet modern technical and environmental requirements. A pilot setup for three-stage residue hydroprocessing has been developed and is currently being tested.
Article
Chemistry, Physical
Daria V. V. Yurpalova, Tatyana N. N. Afonasenko, Igor P. P. Prosvirin, Andrey V. V. Bukhtiyarov, Maxim A. A. Panafidin, Zakhar S. S. Vinokurov, Mikhail V. V. Trenikhin, Evgeny Yu. Gerasimov, Tatyana I. I. Gulyaeva, Larisa M. M. Kovtunova, Dmitry A. A. Shlyapin
Summary: Novel bimetallic Pd-Co catalysts supported on Sibunit carbon material were synthesized and used for selective acetylene hydrogenation to produce ethylene. Increasing the Pd:Co molar ratio from 1:0 to 1:2 in 0.5%Pd-Co/C catalysts, treated at 500 degrees C under hydrogen, led to an increase in ethylene selectivity from 60 to 67% (T = 45 degrees C). The catalysts were characterized using various methods and it was found that the optimal catalytic properties were observed in catalysts with a Pd:Co molar ratio of 1:2-1:4.
Article
Chemistry, Physical
Aleksey N. Chernov, Svetlana V. Cherepanova, Evgeny Yu. Gerasimov, Igor P. Prosvirin, Galina A. Zenkovets, Alexei A. Shutilov, Anna S. Gorbunova, Konstantin Yu. Koltunov, Vladimir I. Sobolev
Summary: Non-oxidative propane dehydrogenation (PDH) is an important method for propylene production. Recent studies have shown that cobalt-containing catalysts have great potential in this process and can achieve efficiencies comparable to platinum- and chromium-based catalytic systems. This study investigated the active sites of cobalt aluminates (CoAl2O4-Al2O3) responsible for PDH and found that cobalt oxide forms tightly covering alumina or embedded in the spinel structure are the most likely catalytic sites for this reaction. Further research is needed to understand the role of surface oxygen vacancies in enhancing the catalytic activity.
Article
Chemistry, Multidisciplinary
Angelina V. V. Zhurenok, Danila B. B. Vasichenko, Semen N. N. Berdyugin, Evgeny Yu. Gerasimov, Andrey A. A. Saraev, Svetlana V. V. Cherepanova, Ekaterina A. A. Kozlova
Summary: Photocatalysts based on graphite-like carbon nitride with a low content of noble metals (Pd, Rh) were proposed for hydrogen evolution under visible light. Reduction of precursor complexes [Rh-2(H2O)(8)(& mu;-OH)(2)](NO3)(4)& BULL;4H(2)O and (Et4N)(2)[Pd(NO3)(4)] at 400 & DEG;C gave metallic particles. The synthesized photocatalysts were characterized and tested for hydrogen evolution, showing high activity for the 0.01-0.5% Rh/g-C3N4 series and the most efficient use of metal particles in the 0.1% Rh/g-C3N4 photocatalyst.
Article
Chemistry, Multidisciplinary
Anna Yu. Kurenkova, Andrey A. Saraev, Denis D. Mishchenko, Evgeny Yu. Gerasimov, Ekaterina A. Kozlova
Summary: In this study, graphitic carbon nitride g-C3N4 was modified using platinum and platinum oxide as catalysts for photocatalytic hydrogen production under visible light irradiation. The results showed that an optimal amount of platinum catalyst significantly enhanced the rate of hydrogen evolution and selectivity, while an excess of platinum led to an increase in the formation of by-products and a decrease in selectivity.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Physical
Dmitry A. Svintsitskiy, Mikhail K. Lazarev, Elena M. Slavinskaya, Elizaveta A. Fedorova, Tatyana Yu. Kardash, Svetlana V. Cherepanova, Andrei I. Boronin
Summary: A mixed oxide of silver and nickel, AgNiO2, was prepared using co-precipitation in an alkaline medium. This oxide showed high selectivity (up to 70%) for the room temperature ethylene epoxidation reaction. The initial structure of AgNiO2 was found to have stacking faults and silver vacancies, resulting in nonstoichiometry. The interaction of AgNiO2 with C2H4 at room temperature led to the removal of nucleophilic and electrophilic oxygen species.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Marat R. Agliullin, Sergei S. Arzumanov, Evgeny Yu. Gerasimov, Nellya G. Grigorieva, Vera R. Bikbaeva, Dmitry V. Serebrennikov, Leonard M. Khalilov, Boris I. Kutepov
Summary: Using multiple techniques including XRD, Al-27 and P-31 MAS NMR, Raman spectroscopy, SEM, TEM, N-2 adsorption-desorption, and IR spectroscopy, the influence of aluminum source and gel aging temperature on the properties of intermediate phases and subsequent crystallization products in SAPO-11 molecular sieves was studied. It was found that by manipulating the aluminum source and gel aging temperature, various intermediate silicoaluminophosphates can be synthesized, and the morphology and size of the resulting crystals in the SAPO-11 molecular sieves can be controlled. The synthesized SAPO-11 nanoscale sample exhibited high stability and selectivity in the vapor-phase isomerization reaction of cyclohexanone oxime to caprolactam.
Article
Chemistry, Inorganic & Nuclear
Long M. Bui, Son T. Cam, Ivan V. Buryanenko, Valentin G. Semenov, Denis V. Nazarov, Pavel E. Kazin, Vladimir N. Nevedomskiy, Evgeny Y. Gerasimov, Vadim I. Popkov
Summary: A novel ultra-high-entropy rare earth orthoferrite (UHE REO) with high chemical and phase purity was successfully synthesized via a simple and efficient solution combustion approach. The presence of main and minor fractions of UHE REO nanoparticles with different sizes was confirmed by SEM and TEM. The unique magnetic behavior of the nanostructured UHE REO suggests its potential applications in various electronic devices.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Vasily V. Kaichev, Andrey A. Saraev, Aleksandr V. Fedorov, Evgeny Yu. Gerasimov, Bo Weng
Summary: It was found that Pd nanoparticles with smaller particle sizes showed higher activity in the low-temperature oxidation of CO. In contrast, larger Pd nanoparticles were stable and consisted mainly of metallic palladium, resulting in lower activity. The difference in activity is attributed to the oxidation of small Pd nanoparticles and the change in chemical composition, leading to a change in the reaction mechanism.
Article
Chemistry, Physical
Svetlana V. Cherepanova, Egor G. Koemets, Evgeny Yu. Gerasimov, Irina I. Simentsova, Olga A. Bulavchenko
Summary: The reduction and structural changes of Co-based oxides doped with Al3+ ions were studied using in situ XRD and TPR techniques. It was found that Al3+ cations dissolved in the Co3O4 lattice and their distribution depended on the calcination temperature. The reduction process and phase transformation were affected by the distribution of Al in the mixed oxides.
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)
