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Li₄SiO₄-coated LiNi_0.5Mn_1.5O₄ as the high performance

Shifeng YANG, Wenfeng REN, Jian CHEN

Frontiers in Energy 2017, Volume 11, Issue 3, Pages 374-382 doi: 10.1007/s11708-017-0494-2

Abstract: The preparation of Li SiO -coated LiNi Mn O materials by sintering the SiO -coated nickel-manganeseWhen used as the cathode materials for lithium-ion batteries, the Li SiO -coated LiNi Mn O samples deliver

Keywords： lithium-ion batteries cathode material LiNi_0.5Mn_1.5O₄ lithium-ion conductor

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Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6, Pages 988-996 doi: 10.1007/s11705-020-1918-9

Abstract: Nevertheless, Mn-rich cathode materials usually suffer from poor cyclability caused by the unavoidableThe design of gradient concentration (GC) particles with Ni-rich inside and Mn-rich outside is provedHerein, a series of LiNi Co Mn O (LNCM622) materials with different GCs (the atomic ratio of Ni/Mn decreasing

Keywords： gradient concentration Ni-rich LiNi_0.6Co_0.2-Mn_0.2O₂ electrochemical

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CO₂ methanation and co-methanation of CO and CO₂ over Mn-promoted Ni/Al₂O₃ catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2, Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnationThe effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanationThe Mn-promoted 15 wt-% Ni/Al O catalysts had improved CO methanation activity especially at low temperatures/Al O catalyst.The co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the

Keywords： Mn promotion nickel catalysts CO₂ methanation co-methanation of CO and CO₂

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Large-scale synthesis of isolated Mn2O3 nanotube/fiber with ferric nitrate as catalyst

ZHANG Aifei, LIU Jiping, L? Guangshu

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1, Pages 55-58 doi: 10.1007/s11705-007-0011-y

Abstract: The O nanofibers had dimensions of 10 30 nm (diameter) and 0.4 2.0 ?m (length), approximately.Ferric nitrate was an ideal catalyst for the preparation of O nanotube/fiber.X-ray diffraction (XRD) result shows that the O nanotube has a crystalline structure different from o-O, t-O, h-O and ?-O.

Keywords： different nickel exterior diameter nanotube XRD

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Construction of nitrogen-doped carbon cladding LiMnO film electrode with enhanced stability for electrochemically selective extraction of lithium ions

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12, Pages 2050-2060 doi: 10.1007/s11705-023-2343-7

Abstract: Reducing the dissolution of Mn from LiMn₂O₄ (LMO) and enhancing the stability ofThe modified C-N@LMO film electrode exhibited lower Mn dissolution and better cyclic stability than theThe dissolution ratio of Mn from the C-N@LMO film electrode decreased by 42% compared to the LMO film

Keywords： LiMn₂O₄ lithium extraction surface coating cyclic stability Mn dissolution

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Rh₂O₃/hexagonal CePO₄ nanocatalysts for N₂O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials.The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of NO than the Rh O supported on CePO nanorods.of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO , O, H O or O /H O) on the N O decomposition was also investigated.

Keywords： Rh₂O₃ CePO₄ N₂O decomposition

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ZnFe₂O₄/BiVO₄ Z-scheme heterojunction for efficient visible-light photocatalytic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1728-1740 doi: 10.1007/s11705-023-2322-z

Abstract: A novel Z-scheme ZnFe₂O₄/BiVO₄ heterojunction photocatalyst was successfullyCompared with the single-phase counterparts, ZnFe₂O₄/BiVO₄ demonstratedConsequently, the 30% ZnFe₂O₄/BiVO₄ catalyst afforded a degradationorganic carbon removal rate of 50%, which is an excellent activity compared with ever reported BiVO₄₂O₄/BiVO₄ heterojunctions were quite

Keywords： ZnFe₂O₄/BiVO₄ Z-scheme heterojunction photocatalytic degradation

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NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4, Pages 373-386 doi: 10.1007/s11705-022-2223-6

Abstract: performance and the amount of carbon material loaded on the electrodes, in this work, NiCo₂O₄ nanowires were firstly grown on the substrate of active carbon cloth to provide the necessaryThen, the quinone-rich nitrogen-doped carbon shell structure was formed around NiCo₂O₄ nanowires, and the obtained composite was used as electrode for electric double layer capacitor

Keywords： carbon cloth NiCo₂O₄ nanowires core−shell structure quinone-rich electric double

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Pd/Fe3O4 supported on bio-waste derived cellulosic-carbon as a nanocatalyst for C–C coupling and electrocatalytic

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10, Pages 1514-1525 doi: 10.1007/s11705-022-2158-y

Abstract: Under mild reaction conditions, the Pd/Fe₃O₄@C magnetic nanocatalyst demonstratedAlso, the Pd/Fe₃O₄@C magnetic nanocatalyst exhibited excellent catalytic activityAlso, we explored the use of Pd/Fe₃O₄@C magnetic nanocatalyst as an electrocatalystInterestingly, the Pd/Fe₃O₄@C magnetic nanocatalyst exhibited better electrochemicalactivity compared to bare carbon and magnetite (Fe₃O₄ nanoparticles) with an overpotential

Keywords： bio-waste cellulosic-carbon Pd/Fe₃O₄ Hiyama cross-coupling hydrogen evolution

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Preparation and property characterization of PAA/Fe3O4 nanocomposite

WEI Shanshan, ZHANG Yi, XU Jiarui

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3, Pages 233-237 doi: 10.1007/s11705-007-0042-4

Abstract: PAA/FeO nanocomposites were prepared by mixing nano-FeOvent. The materials were characterized by transmission electron microscope (TEM), Fourier transform infrared spectroscope (FTIR), thermogravimetry analysis (TGA), dynamic ultra-micro hardness tester (DUMHT) and superconducting quantum interference device (SQUID) magnetometer. Results showed that PAA coordinated with nano-FeO to form a cross-linking structure. The presence of nano-FeO enhanced the thermal stability of the nanocomposite. The elasticity and hardness of the nanocomposite increased, and the indentation depth reduced with the increase of FeO content in the composites. The nanocomposites showed superparamagnetic properties at 300 K.

Keywords： magnetometer superparamagnetic ultra-micro thermogravimetry transmission

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High purity Mn

Xiaoqiang SHAN, Fenghua GUO, Wenqian XU, Xiaowei TENG

Frontiers in Energy 2017, Volume 11, Issue 3, Pages 383-400 doi: 10.1007/s11708-017-0485-3

Abstract: In this paper, the synthesis of high purity layered Mn O nanoparticles through solid state thermal treatmentof Mn O spinel nanoparticles, resulting in a chemical formula of [Mn ][Mn O ], evidenced by Rietveldelectro-kinetic analyses obtained from cyclic voltammetry measurements in half-cells have demonstrated that MnO electrode has a large overpotential (~ 0.6 V) towards gas evolution reactions, resulting in a stableSymmetric full-cells fabricated using Mn O electrodes can be operated within a stable 3.0 V potential

Keywords： manganese oxides Mn₅O₈ high voltage aqueous Na-ion storage

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Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8, Pages 1211-1223 doi: 10.1007/s11705-022-2145-3

Abstract: In this study, a Co₃O₄–CeO₂ composite oxide catalyst was successfullywhich was benefited from the synergistic effects between Co³⁺/Co²⁺ and Ce⁴⁺/Ce³⁺ redox pairs, than bulk CeO₂ and/or Co₃O₄., 89.6% selectivity to KA-oil with a cyclohexane conversion of 5.8% was achieved over Co₃O₄–CeO₂.

Keywords： Co₃O₄–CeO₂ composite oxides cyclohexanone cyclohexanol ultrasonic-assisted

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On the monolayer dispersion behavior of Co₃O₄ on HZSM-5 support: designing applicable

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: Based on monolayer dispersion theory, Co₃O₄/ZSM-5 catalysts with different loadingsCo₃O₄ can spontaneously disperse on HZSM-5 support with a monolayer dispersionHowever, the formation of crystalline Co₃O₄ above the capacity is harmful to thereaction performance. 4% Co₃O₄/ZSM-5, the catalyst close to the monolayer dispersioncapacity amount of Co₃O₄ onto HZSM-5 support.

Keywords： Co₃O₄/ZSM-5 NO_x-SCR by NH₃ monolayer dispersionthreshold effect surface acid sites surface active O₂^– anions

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ZnFe₂O₄ deposited on BiOCl with exposed (001) and (010) facets for photocatalytic

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2, Pages 197-204 doi: 10.1007/s11705-016-1606-y

Abstract: ZnFe O -BiOCl composites were prepared by both hydrothermal and direct precipitation processes and theThe photocatalytic CO reduction activities over the hydrothermally prepared ZnFe O -BiOCl compositesThis is because compared to the direct-precipitation sample, the ZnFe O nanoparticles in the hydrothermalThe mechanism for the photocatalytic reduction of CO in cyclohexanol over ZnFe O -BiOCl composites with

Keywords： reduction of CO₂ cyclohexanol ZnFe₂O₄ deposited BiOCl facet composite

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Phase equilibrium of the ternary system of NH 4 Cl—CaCl 2 —H 2 O at 50°C

Xia LI, Junsheng YUAN, Zhiyong JI, Jianxin CHEN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1, Pages 75-77 doi: 10.1007/s11705-009-0296-0

Abstract: The equilibrium data on the ternary system of NHCl—CaCl—HO at 50°C were investigated using the wet-residue method. The experimental results show that there are three pure phase crystal areas of NHCl, 2NHCl·CaCl·3HO and CaCl·2HO, two mixture phase crystal areas of NHCl and 2NHCl·CaCl·3HO, and 2NHCl·CaCl·3HO and CaCl·2HO in the system. A new hydration double salt (2NHCl·CaCl·3HO) was found in the ternary equilibrium system for the first time.

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Title Author Date Type Operation

Li₄SiO₄-coated LiNi_0.5Mn_1.5O₄ as the high performance

Shifeng YANG, Wenfeng REN, Jian CHEN

Journal Article

Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Journal Article

CO₂ methanation and co-methanation of CO and CO₂ over Mn-promoted Ni/Al₂O₃ catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

Large-scale synthesis of isolated Mn2O3 nanotube/fiber with ferric nitrate as catalyst

ZHANG Aifei, LIU Jiping, L? Guangshu

Journal Article

Construction of nitrogen-doped carbon cladding LiMnO film electrode with enhanced stability for electrochemically selective extraction of lithium ions

Journal Article

Rh₂O₃/hexagonal CePO₄ nanocatalysts for N₂O decomposition

Huan Liu, Zhen Ma

Journal Article

ZnFe₂O₄/BiVO₄ Z-scheme heterojunction for efficient visible-light photocatalytic

Journal Article

NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Journal Article

Pd/Fe3O4 supported on bio-waste derived cellulosic-carbon as a nanocatalyst for C–C coupling and electrocatalytic

Journal Article

Preparation and property characterization of PAA/Fe3O4 nanocomposite

WEI Shanshan, ZHANG Yi, XU Jiarui