Article
Chemistry, Multidisciplinary
E. A. Avdeenko, K. A. Nadeina, O. V. Klimov, T. V. Larina, E. Yu. Gerasimov, I. S. Golubev, A. S. Noskov
Summary: The influence of different alumina precursors (pseudoboehmites) on the catalytic activity of CoMo/ASA + Al2O3 catalysts in FCC gasoline hydrotreating has been studied. The choice of pseudoboehmite significantly affects the properties of the supports and catalysts, including texture, acidity, mechanical properties, and dispersion of the active phase. The type of pseudoboehmite also affects the amount of tetrahedral cobalt in the catalysts, thereby influencing the surface activity. Additionally, a linear relationship is found between the ratio of medium and weak acid sites and catalyst selectivity.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Energy & Fuels
Tiebin Liu, Peiliang Sun, Huihong Zhu, Tao Yang, Bingtao Tang, Chong Peng
Summary: Two NiMo/Al2O3 catalysts with different acid-base properties were prepared and their effects on FCC diesel hydrotreating and desulfurization performance were investigated. The results showed that the surface structural differences affected the interaction between metals and oxygen atoms, leading to differences in catalytic activity. The catalyst with more active phases exhibited better desulfurization and denitrification performance, while the catalyst with higher sulfidation degree showed better hydrotreating performance. The findings provide insights for improving the performance of catalysts used in refinery processes.
Article
Engineering, Chemical
Lan li, Jie Sun, Hao Ling, Feng Ju
Summary: The NiSO4/ZnO-Al2O3-SiO2 adsorbent exhibits self-sulfidation ability and high desulfurization performance in treating model fuel. However, its performance in FCC gasoline feedstock is not well understood. The study compares the performance of the adsorbent in FCC gasoline and model fuel, and investigates the effect of hydrocarbon composition on its performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Energy & Fuels
Mariya A. Kazakova, Anna A. Salomatina, Vasily Yu. Pereyma, Igor P. Prosvirin, Arcady V. Ishchenko, Oleg V. Klimov, Aleksandr S. Noskov, Maxim O. Kazakov
Summary: Carbon coated alumina (C@Al2O3) samples with different degrees of support graphitization were prepared and their influence on the sulfide component and catalytic performance of CoMoS catalysts was studied. Increasing the graphitization degree improved the dispersion of sulfide particles and the content of the CoMoS phase, thereby increasing the selectivity of CoMoS/C@Al2O3 catalysts in the hydrodesulfurization of FCC naphtha. Tuning the support graphitization degree can adjust the selectivity of CoMoS catalysts in FCC naphtha hydrodesulfurization. A 74% graphitization degree reduced the sulfur content in FCC naphtha from 238 to 10 ppm with a slight decrease in octane number, demonstrating the potential of CoMoS/C@Al2O3 catalysts for commercial application in selective FCC naphtha hydrodesulfurization.
Article
Engineering, Environmental
Yue Pan, Hongdong Li, Jiajun Min, Juan Xiong, Yingnan Qin, Zuochao Wang, Zhanchao Wu, Shouhua Feng, Jianping Lai, Lei Wang
Summary: This study proposes a method to enhance the activity, stability, and selectivity of Pd-based catalysts for ethanol oxidation reaction through strong metal-support interaction and heterostructure construction. The synthesized Pd-MxC@CNT catalyst exhibits excellent performance in terms of activity, stability, selectivity, and also glycerol oxidation reaction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Shunyi He, Yuanhua Tu, Jiaxi Zhang, Longhai Zhang, Jun Ke, Liming Wang, Li Du, Zhiming Cui, Huiyu Song
Summary: This study investigates an unusual face-centered cubic (fcc) Ru nanocrystal with favorable HER/HOR performance, showing a specific HOR kinetic current density around 20 and 21 times greater than that of hexagonal close-packed (hcp) Ru and Pt/C, respectively. The fcc Ru can enhance the kinetics of alkaline hydrogen electrocatalysis by negatively shifting the d band center and weakening the interaction between catalysts and key intermediates.
Article
Chemistry, Physical
Changrui Feng, Meng Chen, Yifan Zhou, Zhengkun Xie, Xiumin Li, Pairuzha Xiaokaiti, Yasuki Kansha, Abuliti Abudula, Guoqing Guan
Summary: High-entropy (NiFeCoV)S2 porous nanosheets were fabricated on Ni foam through a hydrothermal reaction process for alkaline water/seawater electrolysis. The rough and porous nanosheets provided large active surface area and exposed more active sites, facilitating mass transfer and improving catalytic performance. The as-fabricated catalyst exhibited low overpotentials and excellent corrosion resistance, showing promise for efficient water/seawater electrolysis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Polymer Science
Ke-Jing Lee, Yeong-Her Wang
Summary: This study investigates the electrical properties of metal-insulator-metal resistive random-access memory devices with different elements selected to stabilize Zr. The results show that selecting Mg as the stabilizing element can improve the performance of the devices by reducing hydrolyzed particles and oxygen vacancy density.
Article
Engineering, Chemical
Yuanyuan Liu, Bing He, Chenze Qi
Summary: The ORR catalyst derived from furfural, nitrogen carbide (g-C3N4), and calcium chloride (CaCl2) shows high activity and stability, strong tolerance to CO2, and competitive performance in CO2 gas capture.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Yingnan Qin, Hao Huang, Wenhao Yu, Haonan Zhang, Zhenjiang Li, Zuochao Wang, Jianping Lai, Lei Wang, Shouhua Feng
Summary: A novel trimetallic material PdWM was synthesized, with Pd50W27Nb23/C showing superior performance in EOR compared to commercial Pt/C and Pd/C. W and Nb enhanced adsorption and oxidation reactions, increasing C1 selectivity.
Article
Engineering, Environmental
Xinglong Qin, Lei Ye, Jichang Liu, Youhao Xu, Alqubati Murad, Qiang Ying, Haitao Shen, Xin Wang, Lixin Hou, Xin Pu, Xin Han, Jiangbing Li, Rongjie Wang, Ning Liu
Summary: A molecular-level FCC-GH process coupling model is established to investigate the effects of reaction conditions on the distribution of hydrocarbons in gasoline and guide the optimization of hydrocarbon compositions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Xinglong Qin, Lei Ye, Alqubati Murad, Jichang Liu, Qiang Ying, Jian Long, Wenxin Yu, Jinquan Xie, Lixin Hou, Xin Pu, Xin Han, Jigang Zhao, Hui Sun, Hao Ling
Summary: A molecular-level model based on the Structure Oriented Lumping (SOL) method was established to guide the accurate control of sulfides in gasoline and diesel of the Fluid Catalytic Cracking (FCC) process. By tracking their generation paths and reaction paths in a complex reaction network, the conversion law of sulfides in gasoline and diesel was investigated. The quantitative effects of operation conditions on sulfide content in gasoline and diesel were also calculated.
Article
Chemistry, Physical
Jihyun Kim, Yong-Kul Lee
Summary: NiMoS and CoMoS catalysts were synthesized and applied to the hydrotreating (HDT) of FCC light cycle oils (FCC-LCO) at 613 K and 8.6 MPa H-2. The individual and competitive reactivities of sulfur (S) and nitrogen (N) compounds in the HDS and HDN reactions were investigated using S and N model compounds. The NiMoS catalyst showed better activity in the HDN of LCO and HDS of LCO compared to the CoMoS catalyst.
Article
Environmental Sciences
Honggang Zhen, Xuefang Yan, Chaojiu Chen, Haozhou Liu, Xiuying Yang, Yingli Su, Lin Yang, Xinlong Wang, Zhiye Zhang
Summary: In this study, the mechanisms and intrinsic selectivity for the removal of Fe(III), Al(III), and Mg(II) from phosphoric acid solution were investigated. The results showed that the interactions between Fe(III), Al(III), and Mg(II) ions and the phosphonic group functionalized MTS9500 resin were determined, and the intrinsic selectivities of the resin for Fe(III), Al(III), and Mg(II) removal were quantified. This research provides valuable insights for the treatment of electronic waste, sewage, hydrometallurgy, and purification of phosphoric acid in industry.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
He Liu, Zhipeng Qiu, Huihui Pan, Aijun Guo, Shouhui Jiao, Feng Wang, Kun Chen, Zongxian Wang
Summary: This study demonstrates the potential of dispersed Mo2C and MoS2 nanoparticles as selective hydrotreating catalysts for SLO, successfully removing olefins and sulfur, improving the stability of SLO, and preserving aromatic macromolecules.
Article
Chemistry, Physical
Arina R. Potylitsyna, Yuliya V. Rudneva, Yury I. Bauman, Pavel E. Plyusnin, Vladimir O. Stoyanovskii, Evgeny Y. Gerasimov, Aleksey A. Vedyagin, Yury V. Shubin, Ilya V. Mishakov
Summary: The catalytic utilization of chlorine-organic wastes is important for ecological reasons. This study focused on the catalytic decomposition of trichloroethylene over 100Ni and 96Ni-4W catalysts, resulting in the formation of carbon nanofibers. The optimal activity of the catalysts was observed at specific temperature ranges, and the 96Ni-4W catalyst showed better longevity compared to pure Ni catalyst.
Article
Chemistry, Physical
Lyubov Isupova, Evgeny Gerasimov, Igor Prosvirin, Vladimir Rogov
Summary: LaFe0.4Ni0.6O3/CeO2 (1:1) two-phase composite materials were prepared by mechanochemical and Pechini routes. The catalytic properties of the composites in methane and CO oxidation reactions strongly depend on their preparation conditions. In low-temperature catalytic CO oxidation, the composites demonstrate higher activity compared with LaFe0.4Ni0.6O3 perovskite, with the highest activity observed for the composite prepared by mechanical treatment of perovskite and fluorite precursors. In high-temperature catalytic methane oxidation, the activity correlates with the reducibility of the samples, with the highest activity observed for the composite prepared by the one-pot Pechini route with higher reducibility up to 600 degrees C.
Article
Chemistry, Physical
Ilya Yakovlev, Serguei Tikhov, Evgeny Gerasimov, Tatiana Kardash, Konstantin Valeev, Aleksei Salanov, Yurii Chesalov, Olga Lapina, Oleg Lomovskii, Dina Dudina
Summary: The low specific surface area of metal powders produced by mechanical treatment often limits their use in various fields. This study explores the effect of hydrogen treatment on the structure of mechanically treated powders. A metal-oxide nanocomposite powder was successfully produced by mechanical alloying and high-pressure hydrogenation. The resulting nanocomposite shows potential for the synthesis of Fischer-Tropsch catalysts, due to its pulverization and an increase in specific sites.
Article
Chemistry, Physical
Zaliya A. Fedorova, Vadim A. Borisov, Vera P. Pakharukova, Evgeniy Y. Gerasimov, Vladimir D. Belyaev, Tatyana I. Gulyaeva, Dmitriy A. Shlyapin, Pavel V. Snytnikov
Summary: Layered Ni-Mg-Al hydroxides with different Mg/Ni ratios and related oxide systems were synthesized and characterized. After heat treatment, Ni-Mg-Al-mixed oxides with a specific nanostructure were formed. LDH-derived Ni-Mg-Al catalysts showed superior catalytic performance in ammonia decomposition compared to existing analogues.
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, Inorganic & Nuclear
Ksenia A. Nadeina, Sergey V. Budukva, Yuliya V. Vatutina, Polina P. Mukhacheva, Evgeniy Yu. Gerasimov, Vera P. Pakharukova, Igor P. Prosvirin, Tatyana V. Larina, Oleg V. Klimov, Aleksandr S. Noskov, Victor V. Atuchin
Summary: Among the known synthesis procedures and reagents for unsupported Ni-Mo-W catalysts, there is no consensus about optimal preparation conditions. In this study, Ni-Mo-W precursors were prepared via three different techniques and characterized. The catalytic activity was found to be significantly higher when all active metals are available in a mixed phase. The catalyst prepared by the spray drying method showed the highest activity.
Article
Chemistry, Inorganic & Nuclear
Pavel V. Markov, Galina O. Bragina, Nadezhda S. Smirnova, Galina N. Baeva, Igor S. Mashkovsky, Evgeny Y. Gerasimov, Andrey V. Bukhtiyarov, Yan. V. Zubavichus, Alexander Y. Stakheev
Summary: The effect of support on the performance of Pd1Ag10/Al2O3 and Pd1Ag10/CeO2-ZrO2 catalysts in the selective hydrogenation of diphenylacetylene (DPA) was investigated. The use of CeO2-ZrO2 as a carrier increased the activity of the Pd1Ag10 catalyst by three times without sacrificing selectivity compared to Pd1Ag10/Al2O3. The high selectivity of Pd1Ag10/CeO2-ZrO2 can be attributed to the stability of the structure of isolated Pd-1 sites on the surface of SAA Pd1Ag10/CeO2-ZrO2.
Article
Chemistry, Inorganic & Nuclear
Maxim D. Mikhnenko, Svetlana V. Cherepanova, Evgeny Yu Gerasimov, Alena A. Pochtar, Maria V. Alekseeva (Bykova), Roman G. Kukushkin, Vadim A. Yakovlev, Olga A. Bulavchenko
Summary: The structural features of NiO-SiO2 nanocrystalline catalyst synthesized by sol-gel method were investigated. XRD, TEM, and DD were used to study the structure. XRD simulations based on conventional Rietveld analysis and statistical models of 1D disordered crystals were conducted to extract structural information. The results showed the presence of two NiO-like oxides with different lattice constants and different average sizes in NiO-SiO2 catalyst.
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, 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)
