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Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism

Xingling Zhao, Jun Xu, Feng Deng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 159-187 doi: 10.1007/s11705-019-1885-1

Abstract: To understand the nature of metal active sites and the reaction mechanism over such catalysts is of greatsummarize recent developments and applications of SSNMR for exploring the structure and property of activesites in metal-containing zeolites.catalytic reactions on metal-containing zeolites based on the observation of key surface species and active

Keywords： metal-containing zeolites     solid-state NMR     active site     host-guest interaction     reaction mechanism    

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Multifunctional heteroatom zeolites: construction and applications

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1462-1486 doi: 10.1007/s11705-021-2099-x

Abstract: postsynthesis routes; then, the spectroscopic techniques to identify the existing states of heteroatom sites

Keywords： zeolite     multifunctional active sites     heteroatom     characterization     catalysis    

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noble metal nanoparticle size on C–N bond cleavage performance in hydrodenitrogenation: a study of activesites

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1986-2000 doi: 10.1007/s11705-023-2337-5

Abstract: On the active metal nanoparticle scale, the role of catalyst size in C–N bond cleavage has not been clearlyDifferent concentrations of terrace, step, and corner sites were found in different sizes of Ru nanoparticlesThis analysis indicates that the variation of different sites on the catalyst is the intrinsic factorof the size dependence of C–N bond cleavage activity, and the step atoms are the active sites for theThe role of step sites in C–N bond cleavage was proposed using the density function theory calculations

Keywords： sp3/sp2-hybridized C–N bond     noble metal nanoparticle     catalytic active site     turnover    

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Insights into carbon-based materials for catalytic dehydrogenation of low-carbon alkanes and ethylbenzene

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1623-1648 doi: 10.1007/s11705-023-2328-6

Abstract: A general introduction to the dehydrogenation mechanism and active sites of carbon catalysts is briefly

Keywords： carbon materials     dehydrogenation     active sites     mechanism     catalytic performance     support    

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High-gravity intensified iron-carbon micro-electrolysis for degradation of dinitrotoluene

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1595-1605 doi: 10.1007/s11705-022-2204-9

Abstract: interface, and as a result the degradation efficiency of Fe–C micro-electrolysis is improved and the activesites on the Fe–C surface can be regenerated for continuous use.

Keywords： high-gravity technology     rotating packed bed     Fe–C micro-electrolysis     dinitrotoluene wastewater     activesites    

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Effects of preparation methods on the activity of CuO/CeO

Huanhuan Shang, Xiaoman Zhang, Jing Xu, Yifan Han

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 603-612 doi: 10.1007/s11705-017-1661-z

Abstract: The origin of active sites was explored by the multiple techniques.Raman spectra suppress the formation of the Cu-Ce interface, where the adsorbed CO will react with active

Keywords： CuO/CeO2     CO oxidation     interfaces     structure-performance relationship     active sites    

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Microemulsion-mediated hydrothermal synthesis of flower-like MoS

Yuxia Jiang, Donge Wang, Zhendong Pan, Huaijun Ma, Min Li, Jiahe Li, Anda Zheng, Guang Lv, Zhijian Tian

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 32-42 doi: 10.1007/s11705-017-1677-4

Abstract: enhanced hydrogenation activities of MoS nanoflowers can be ascribed to the high exposure of catalytic activesites, resulting from the smaller particle size, fewer stacking layer, shorter slab length and enlarged

Keywords： microemulsion     intercalated MoS2     catalytic hydrogenation     active sites    

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Dual-functional sites for synergistic adsorption of Cr(VI) and Sb(V) by polyaniline-TiO hydrate: Adsorptionbehaviors, sites and mechanisms

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1526-7

Abstract:

• PANI/Ti(OH)n(4–n)+ exhibited excellent adsorption capacity and reusability.

Keywords： Polyaniline/TiO2     Chromium     Antimony     Adsorption     Desorption     Mechanism    

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Influence of Fe on electrocatalytic activity of iron-nitrogen-doped carbon materials toward oxygen reduction reaction

Lin LI, Cehuang FU, Shuiyun SHEN, Fangling JIANG, Guanghua WEI, Junliang ZHANG

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 812-821 doi: 10.1007/s11708-020-0669-0

Abstract: The development of highly active nitrogen-doped carbon-based transition metal (M-N-C) compounds for theIt is deduced that the active site lies in the structure of Fe-N , accompanied with the addition of appropriateFe, and the number of active sites increases without the occurrence of agglomeration particles.Moreover, it is speculated that Fe plays an important role in stabilizing N as well as constituting activesites in the second pyrolyzing process.

Keywords： oxygen reduction reaction     Fe-N-C     active sites     Fe addition     second heat treatment    

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Evaluation of the wind energy potential of two south west sites in Nigeria

Olaleye M. AMOO

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 237-246 doi: 10.1007/s11708-012-0201-2

Abstract: wind energy potential of Abeokuta (07°03'N, 03°19'E) and Ijebu-Ode (06°47'N, 03°58'E), two south west sitesIjebu-Ode was found to be the better of the two sites in terms of annual variation of mean wind speed

Keywords： wind potential     wind speed     wind power density     wind gust     turbulence intensity     Nigeria    

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Microwave-induced high-energy sites and targeted energy transition promising for efficient energy deployment

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 931-942 doi: 10.1007/s11708-021-0771-y

Abstract: Meanwhile, the dispersed microwave field energy concentrated in small sites, where local temperaturesIn particular, the discharge intensity, frequency, and high-energy sites were strengthened through theThe microwave-induced high-energy sites and targeted energy transition provide an important pathway for

Keywords： microwave discharge     high-energy sites     targeted-energy transition     morphology design     energy efficiency    

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Scale study of sites and pavilions for World Expo 2010

ZHOU Zhuoyan, CHEN Yi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1,   Pages 102-106 doi: 10.1007/s11709-008-0012-z

Abstract: The scale of sites and pavilions for World Expo 2010 (Shanghai World Expo) mainly refers to the study

Keywords： pavilion     study     number     appropriate     design    

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On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicable catalysts for selective catalytic reduction of nitrogen oxides by ammonia

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

Abstract: It has been revealed that the quantities of surface active oxygen (O2–) and acidsites are crucial for the reaction, which can adsorb and activate NOx and NH3sites, hence promoting the performance of ammonia selective catalytic reduction of nitrogen oxide.4/ZSM-5, the catalyst close to the monolayer dispersion capacity, possesses the most abundant activeO2– species and acidic sites, thereby demonstrating the best reaction performance

Keywords： 5     NOx-SCR by NH3     monolayer dispersion threshold effect     surface acid sites     surface active O2– anions    

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advanced engineering measures on displacement and stress field of surrounding rock in tunnels crossing active

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0966-x

Abstract: using high-strength concrete-to resist fault dislocation in the surrounding rock near tunnels crossing activeThe research results provide a new supporting idea for the surrounding rock of tunnels crossing active

Keywords： anti-fault effect     engineering measures     LRAF method     stress and displacement field     tunnel-crossing active    

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Advances in Active Suspension Systems for Road Vehicles

Min Yu,Simos Evangelou,Daniele Dini,

Engineering doi: 10.1016/j.eng.2023.06.014

Abstract: Active suspension systems (ASSs) have been proposed and developed for a few decades, and have now onceadopted in production cars are discussed in detail, including the representative solutions of Mercedes activebody control (ABC) and Audi predictive active suspension; novel concepts that could become alternativecandidates are also introduced, including series active variable geometry suspension, and the active

Keywords： Active suspension     Vehicle dynamics     Robust control     Ride comfort     Chassis attitude    

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Title Author Date Type Operation

Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism

Xingling Zhao, Jun Xu, Feng Deng

Journal Article

Multifunctional heteroatom zeolites: construction and applications

Journal Article

noble metal nanoparticle size on C–N bond cleavage performance in hydrodenitrogenation: a study of activesites

Journal Article

Insights into carbon-based materials for catalytic dehydrogenation of low-carbon alkanes and ethylbenzene

Journal Article

High-gravity intensified iron-carbon micro-electrolysis for degradation of dinitrotoluene

Journal Article

Effects of preparation methods on the activity of CuO/CeO

Huanhuan Shang, Xiaoman Zhang, Jing Xu, Yifan Han

Journal Article

Microemulsion-mediated hydrothermal synthesis of flower-like MoS

Yuxia Jiang, Donge Wang, Zhendong Pan, Huaijun Ma, Min Li, Jiahe Li, Anda Zheng, Guang Lv, Zhijian Tian

Journal Article

Dual-functional sites for synergistic adsorption of Cr(VI) and Sb(V) by polyaniline-TiO hydrate: Adsorptionbehaviors, sites and mechanisms

Journal Article

Influence of Fe on electrocatalytic activity of iron-nitrogen-doped carbon materials toward oxygen reduction reaction

Lin LI, Cehuang FU, Shuiyun SHEN, Fangling JIANG, Guanghua WEI, Junliang ZHANG

Journal Article

Evaluation of the wind energy potential of two south west sites in Nigeria

Olaleye M. AMOO

Journal Article

Microwave-induced high-energy sites and targeted energy transition promising for efficient energy deployment

Journal Article

Scale study of sites and pavilions for World Expo 2010

ZHOU Zhuoyan, CHEN Yi

Journal Article

On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicable catalysts for selective catalytic reduction of nitrogen oxides by ammonia

Journal Article

advanced engineering measures on displacement and stress field of surrounding rock in tunnels crossing active

Journal Article

Advances in Active Suspension Systems for Road Vehicles

Min Yu,Simos Evangelou,Daniele Dini,

Journal Article