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different acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1399-1411 doi: 10.1007/s11705-023-2345-5

Abstract: 3) were synthesized and used for the selective catalytic reduction (SCR) of NO by NH3NH3-SCR performances were conducted in the temperature range of 80 to 400 °C.> Ce2(SO4)3, which is in agreement with their abilities of NH343–, VO43– and SO42–4+, large NH3 adsorption

Keywords： CePO4     CeVO4     Ce2(SO4)3     selective catalytic reduction    

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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 dispersionand acid sites are crucial for the reaction, which can adsorb and activate NOx and NHreaction performance. 4% Co3O4/ZSM-5, the catalyst close to the monolayer dispersioncapacity amount of Co3O4 onto HZSM-5 support.

Keywords： Co3O4/ZSM-5     NOx-SCR by NH3     monolayer dispersion    

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Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1674-4

Abstract:

● Simultaneous NH4+/NO3–

Keywords： Anammox     Denitrification     FeS     NH4+/NO3−     Sulfammox    

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Denitrification performance and sulfur resistance mechanism of Sm–Mn catalyst for low temperature NH-SCR

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 617-633 doi: 10.1007/s11705-022-2258-8

Abstract: activities and sulfur resistances for the selective catalytic reduction of NOx by NH3 between 50 and 300 °C in the presence of excess oxygen. 0.10Sm–Mn catalyst indicated better

Keywords： MnOx     Sm–Mn     catalyst     NH3-SCR     sulfur resistance    

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Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 38-46 doi: 10.1007/s11705-011-1167-z

Abstract: Two types of regenerated solutions, namely NH Cl (1 mol/L) and dilute H SO (0.5 mol/L), were employedThe catalyst regenerated by aqueous NH Cl had a higher activity than that of the catalyst treated byThe main reason is that the NH generated from the decomposition of NH Cl at high temperatures can be

Keywords： V2O5-WO3/TiO2 catalysts     thermal deactivation     regeneration     NH4Cl     dilute H2SO4 solution    

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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: experimental results show that there are three pure phase crystal areas of NHCl, 2NHCl·CaCl·3HOand 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
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Metal-Free Hexagonal Perovskite High-Energetic Materials with NH3OH+/NH2NH3+ as B-site Cations Article

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Engineering 2020, Volume 6, Issue 9,   Pages 1013-1018 doi: 10.1016/j.eng.2020.05.018

Abstract: /sub>)3 (H2dabco2+ = 1,4-diazabicyclo[2.2.2]octane-1,4-diium), werefabricated via an easily scaled-up synthetic route using NH3OH+ and NH2NH3+ as B-site cations, respectively.Compared with their NH4+ analog ((H2dabco)(NH4)(ClO4)3; DAP-4), which has a cubic perovskite structure, DAP-6 and DAP-7 have higher crystal

Keywords： Energetic materials     Single explosive     Solid propellant     Metal-free     Hexagonal perovskite    

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CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1539-2

Abstract:

• CeO2 doping significantly improved low-temperature NH3-SCR activity on FeTiOx.

Keywords： NH3-SCR     CeO2 doping     Low-temperature NOx removal     Improved redox    

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Wideband circular-polarized transmitarray for generating a high-purity vortex beam Correspondence

Liangjie QIU, Xiuping LI, Zihang QI, Wenyu ZHAO, Yuhan HUANG,xpli@bupt.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 6,   Pages 927-934 doi: 10.1631/FITEE.2200539

Abstract: The measured peak gain is 22.3 dBic, and the 3-dB axial ratio bandwidth is 27.6%.

Keywords： 轨道角动量；涡旋波束；透射阵；宽带；高纯度    

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Enabling nickel ferrocyanide nanoparticles for high-performance ammonium ion storage

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 226-235 doi: 10.1007/s11705-022-2198-3

Abstract: Prussian blue and its analogs are extensively investigated as a cathode for ammonium-ion batteries. However, they often suffer from poor electronic conductivity. Here, we report a Ni2Fe(CN)6/multiwalled carbon nanotube composite electrode material, which is prepared using a simple coprecipitation approach. The obtained material consists of nanoparticles with sizes 30–50 nm and the multiwalled carbon nanotube embedded in it. The existence of multiwalled carbon nanotube ensures that the Ni2Fe(CN)6/multiwalled carbon nanotube composite shows excellent electrochemical performance, achieving a discharge capacity of 55.1 mAh·g–1 at 1 C and 43.2 mAh·g–1 even at 15 C. An increase in the ammonium-ion diffusion coefficient and ionic/electron conductivity based on kinetic investigations accounts for their high performance. Furthermore, detailed ex situ characterizations demonstrate that Ni2Fe(CN)6/multiwalled carbon nanotube composite offers three advantages: negligible lattice expansion during cycling, stable structure, and the reversible redox couple. Therefore, the Ni2Fe(CN)6/multiwalled carbon nanotube composite presents a long cycling life and high rate capacity. Finally, our study reports a desirable material for ammonium-ion batteries and provides a practical approach for improving the electrochemical performance of Prussian blue and its analogs.

Keywords： nickel ferrocyanides     NH4+     electrochemistry     Prussian blue     aqueous ammonium ion    

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Ammonia adsorption on graphene and graphene oxide: a first-principles study

Yue PENG, Junhua LI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 403-411 doi: 10.1007/s11783-013-0491-6

Abstract: The optimal adsorption and orientation of the NH molecules on the graphene surfaces were determined,and the adsorption energies ( ) as well as the Mulliken charge transfers of NH were calculated.The surface epoxy or hydroxyl groups can promote the adsorption of NH on the GO; the enhancement of

Keywords： graphene oxide     first-principles calculations     NH3 adsorption    

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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: Hexagonal CePO nanorods were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis at 150 °C. 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 N O than the Rh O supported on CePO nanorods. The stability 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. The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

Keywords： Rh2O3     CePO4     N2O decomposition    

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China in the eyes of news media: a case study under COVID-19 epidemic Research Article

Hong Huang, Zhexue Chen, Xuanhua Shi, Chenxu Wang, Zepeng He, Hai Jin, Mingxin Zhang, Zongya Li,honghuang@hust.edu.cn,chenzhexue@hust.edu.cn,xhshi@hust.edu.cn,wangchenxu@hust.edu.cn,hezepeng@hust.edu.cn,hjin@hust.edu.cn,mingxinzhang@hust.edu.cn,lzy901014@sina.com

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 11,   Pages 1443-1457 doi: 10.1631/FITEE.2000689

Abstract: (3) What is the media’s attitude when talking about China?

Keywords： 国家形象；新冠肺炎；主题挖掘；实体；新闻立场；情感    

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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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Title Author Date Type Operation

different acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3

Journal Article

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

Journal Article

Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Journal Article

Denitrification performance and sulfur resistance mechanism of Sm–Mn catalyst for low temperature NH-SCR

Journal Article

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Journal Article

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,

Journal Article

Metal-Free Hexagonal Perovskite High-Energetic Materials with NH3OH+/NH2NH3+ as B-site Cations

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Journal Article

CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction

Journal Article

Wideband circular-polarized transmitarray for generating a high-purity vortex beam

Liangjie QIU, Xiuping LI, Zihang QI, Wenyu ZHAO, Yuhan HUANG,xpli@bupt.edu.cn

Journal Article

Enabling nickel ferrocyanide nanoparticles for high-performance ammonium ion storage

Journal Article

Ammonia adsorption on graphene and graphene oxide: a first-principles study

Yue PENG, Junhua LI

Journal Article

Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition

Huan Liu, Zhen Ma

Journal Article

China in the eyes of news media: a case study under COVID-19 epidemic

Hong Huang, Zhexue Chen, Xuanhua Shi, Chenxu Wang, Zepeng He, Hai Jin, Mingxin Zhang, Zongya Li,honghuang@hust.edu.cn,chenzhexue@hust.edu.cn,xhshi@hust.edu.cn,wangchenxu@hust.edu.cn,hezepeng@hust.edu.cn,hjin@hust.edu.cn,mingxinzhang@hust.edu.cn,lzy901014@sina.com

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

Journal Article