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Accounting for the uncertainties in the estimation of average shear wave velocity using – correlations

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1199-1208 doi: 10.1007/s11709-021-0749-1

Abstract: Various <i>Vi> <sub>Ssub>–SPT– <i>Ni> correlations are routinely incorporated in seismic hazardand passed through various correlations to estimate <i>Vi> <sub>Ssub> at different depths.The scattering nature of the <i>Vi> <sub>Ssub> values estimated using different <i>Vi> <sub>Ssub>– <i>Ni> correlations was reduced significantly with the application of the methodology.Vi> <sub>S30sub> using general and soil-specific correlations.

Keywords： uncertainties     <i>Vi> <sub>Ssub>– <i>Ni> correlations     <i>Vi> <sub>S30sub>     SPT data     statistical    

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NiFeRuO<sub><i>xi>sub> nanosheets on Ni foam as an electrocatalyst for efficient

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1698-1706 doi: 10.1007/s11705-023-2334-8

Abstract: The electrocatalyst NiFeRuO<sub><i>xi>sub>/NF, comprised of NiFeRuO<sub><i>xi>sub> nanosheetsgrown on Ni foam, was synthesized using a hydrothermal process followed by thermal annealing.NiFeRuO<sub><i>xi>sub>/NF displays high electrocatalytic activity and stability for overall alkalineA solar-driven system containing such a bifunctional NiFeRuO<sub><i>xi>sub>/NF has an almost 100%The NiFeRuO<sub><i>xi>sub> coating around Ni foam is an anti-corrosion layer and also a critical

Keywords： NiFeRuO<sub><i>xi>sub> nanosheets     Ni foam     electrocatalysis     overall seawater splitting     solar-driven    

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polyhedral NiS/NiS nanocrystals with excellent photocatalytic performance for removing rhodamine B and Cr(VI

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1537-1549 doi: 10.1007/s11705-021-2094-2

Abstract: In this work, <i>hi>-BN/NiS<sub>2sub>/NiS composites were prepared via a simple solvothermal methodThe 7 wt-% <i>hi>-BN/NiS<sub>2sub>/NiS composites were characterized via a larger specific surface>2sub>/NiS photocatalyst achieved 98.5% for Cr(VI) after 120 min, which was about 3 times higher thanHowever, the removal rate of RhB by the 7 wt-% <i>hi>-BN/NiS<sub>2sub>/NiS photocatalyst reachedThis is due to the double Z-scheme heterojunction formed between NiS<sub>2sub>/NiS and <i>hi>-BN,

Keywords： graphene-like <i>hi>-BN     <i>hi>-BN/NiS<sub>2sub>/NiS composites     photocatalysis     Cr(VI) reduction    

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Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 498-510 doi: 10.1007/s11705-021-2082-6

Abstract: Herein, a series of <i>Ni>-doped carbon nanotubes encapsulating binary alloy nanoparticles (M<sub><i>xi>sub>Ni-NCNT, M= Fe, Co) were successfully fabricated through the co-pyrolysis of melamine andThe M<sub><i>xi>sub>Ni-NCNT samples exhibited bamboo-like nanotubular structures with a large specificon M<sub><i>xi>sub>Ni-NCNT.biofuels by syngas fermentation, could be realized on Co<sub>1sub>Ni-NCNT and Co<sub>2sub>Ni-NCNT

Keywords： electrochemical reduction of CO<sub>2sub>     syngas     <i>Ni>-doped carbon nanotubes     encapsulated alloynanoparticles     CO/H<sub>2sub> ratio    

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The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4,   Pages 454-464 doi: 10.1007/s11705-014-1456-4

Abstract: However, there is little data on the biosorption mechanism of Cr(VI) by dried biomass.So the bio-removal of Cr(VI) ions from aqueous solutions was investigated using dried biomass from abiosorption process was found to be highly pH dependent and the optimum pH for the adsorption of Cr(VI

Keywords： Cr(VI)     biomass     <i>Bacillus cereus i>Pf-1     biosorption capacity     biosorbents    

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Improved Oxygen Evolution Kinetics and Surface States Passivation of Ni-B<sub>isub> Co-Catalyst for Letter

Ke Dang,Tuo Wang,Chengcheng Li,Jijie Zhang,Shanshan Liu,Jinlong Gong

Engineering 2017, Volume 3, Issue 3,   Pages 285-289 doi: 10.1016/J.ENG.2017.03.005

Abstract: describes the combinational surface kinetics enhancement and surface states passivation of nickel-borate (Ni-B<sub>isub>) co-catalyst for a hematite (Fe<sub>2sub>O<sub>3sub>) photoanode.The Ni-B<sub>isub>-modified Fe<sub>2sub>O<sub>3sub> photoanode exhibits a cathodic onset potentialThe borate (B<sub>isub>) in the Ni-B<sub>isub> film promotes the release of protons for the oxygen

Keywords： Nickel-borate     Hematite     Oxygen evolution reaction     Co-catalyst    

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Thermal and Mechanical Properties Optimization of <i>ABi>O<sub>4sub> Type EuNbO<sub>4sub> By the<i>Bi>-Site Substitution of Ta Article

Lin Chen, Jing Feng

Engineering 2020, Volume 6, Issue 2,   Pages 177-184 doi: 10.1016/j.eng.2019.12.006

Abstract:

Ferroelastic ABO<sub>4sub> type RETaO<sub>4sub> and RENbO<sub>4sub> ceramics (where>4sub> have been found to be better than those of RENbO<sub>4sub>.>4sub> fabricated through a solid-state reaction (SSR).The Young's modulus and the thermal expansion coefficient (TEC) of EuNbO<sub>4sub> are effectivelyThe results indicate that the thermal and mechanical properties of EuNbO<sub>4sub> can be effectually

Keywords： Thermal barrier coatings     Rare earth niobates     Substitution     Thermal conductivity     Thermal expansion coefficients     Young’s modulus    

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Biosorption of Cr(VI) by carbonized

Jinfa CHEN,Ping YANG,Dagang SONG,Sha YANG,Li ZHOU,Lei HAN,Bo LAI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 960-966 doi: 10.1007/s11783-013-0612-2

Abstract: The biosorbent was used for Cr(VI) removal.Cr(VI) removal efficiency is found to be maximum (98%) at pH= 1.The maximum adsorption capacities for Cr(VI) ranged from 46.23 to 55.19 mg·g for temperature betweenenthalpy ( ) and entropy ( ) indicate a spontaneous, endothermic and increased randomness nature of Cr(VIand buckwheat straw mixed materials with simple treatment had a high efficiency for the removal of Cr(VI

Keywords： <i>Eupatorium adenophorumi>     buckwheat straw     adsorption     Cr(VI)     thermodynamics    

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Evaluation of H<sub>2sub> on the Evolution Mechanism of NO<sub><i>xi>sub> Storage and Reductionover Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> Catalysts Article

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Engineering 2019, Volume 5, Issue 3,   Pages 568-575 doi: 10.1016/j.eng.2019.02.005

Abstract:

In this investigation, Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> catalysts were preparedThe physical and chemical properties of the Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub>>xsub>, CeO<sub>2sub>, and BaCO<sub>3sub>, whose peaks were observed in X-ray diffraction>catsub> at 350 °C, which was ascribed to the increase in NO<sub>2sub> yield.and conversion were increased when the time of H<sub>2sub> exposure (i.e., 30 s, 45 s, and 60 s) was

Keywords： Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> catalysts     Physicochemical properties     NO<sub><i>xi>sub> storageand reduction     NO<sub><i>xi>sub> emission     H<sub>2sub> reductant    

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NO<sub><i>xi>sub> and H<sub>2sub>S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 4-13 doi: 10.1007/s11708-020-0804-y

Abstract: Low NO combustion of blended coals is widely used in coal-fired boilers in China to control NO emission; thus, it is necessary to understand the formation mechanism of NO and H S during the combustion of blended coals. This paper focused on the investigation of reductive gases in the formation of NO and H S in the reductive zone of blended coals during combustion. Experiments with Zhundong (ZD) and Commercial (GE) coal and their blends with different mixing ratios were conducted in a drop tube furnace at 1200°C–1400°C with an excessive air ratio of 0.6–1.2. The coal conversion and formation characteristics of CO, H S, and NO in the fuel-rich zone were carefully studied under different experimental conditions for different blend ratios. Blending ZD into GE was found to increase not only the coal conversion but also the concentrations of CO and H S as NO reduction accelerated. Both the CO and H S concentrations inblended coal combustion increase with an increase in the combustion temperature and a decrease in the excessive air ratio. Based on accumulated experimental data, one interesting finding was that NO and H S from blended coal combustion were almost directly dependent on the CO concentration, and the CO concentration of the blended coal combustion depended on the single char gasification conversion.Thus, CO, NO , and H S formation characteristics from blended coal combustion can be well predicted by single char gasification kinetics.

Keywords： blended coal combustion     NO<sub><i>x i>sub>formation     H<sub>2sub>S formation     air staged combustion    

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Air pollutant control and strategy in coal-fired power industry for promotion of China’s emission reduction

Weiliang WANG, Bo LI, Xuan YAO, Junfu LYU, Weidou NI

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 307-316 doi: 10.1007/s11708-019-0620-4

Abstract: Coal-fired power industry has always been the major power source in China. As coal-fired power industry consumes around a half of China’s coal production, it is always thought to be a big air pollutant emission source. As more and more strict legislations in coal-fired power industry have been issued by the government, the emission performance in coal-fired power industry has been drastically reduced recently. Based on a brief review of the development of emission control in China’s coal-fired power industry, the affecting mechanism among the development of installed capacities of emission control device, pollutant emission, and emission performances in coal-fired power industry is studied. According to a systematic study on the development of emissions of classified categories, the role of coal-fired power industry as a pollutant source is reevaluated. It is found that, coal-fired power industry has contributed the most to China’s emission reduction, and the barycenter of air pollutant emission has been transformed to other high energy consumption industries, like heat, iron/steel, and cement. Then some development strategies are suggested, such as maintaining the current emission standard in coal-fired power industry; expending the coal-fired power emission standards to categories of heat generation and supply, nonmetallic mineral production and ferrous metals smelting and processing; and controlling other heavy metal by consulting the method of Hg control.

Keywords： coal-fired power industry     energy intensive industries     pollutant emission control     NO<sub><i>xi>sub>     SO<sub>2sub>     soot    

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Chemical poison and regeneration of SCR catalysts for NO<sub><i>xi>sub>

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 413-427 doi: 10.1007/s11783-016-0832-3

Abstract: Selective catalytic reduction (SCR) of NO with NH is an effective technique to remove NO from stationary sources, such as coal-fired power plant and industrial boilers. Some of elements in the fly ash deactivate the catalyst due to strong chemisorptions on the active sites. The poisons may act by simply blocking active sites or alter the adsorption behaviors of reactants and products by an electronic interaction. This review is mainly focused on the chemical poisoning on V O -based catalysts, environmental-benign catalysts and low temperature catalysts. Several common poisons including alkali/alkaline earth metals, SO and heavy metals etc. are referred and their poisoning mechanisms on catalysts are discussed. The regeneration methods of poisoned catalysts and the development of poison-resistance catalysts are also compared and analyzed. Finally, future research directions in developing poisoning resistance catalysts and facile efficient regeneration methods for SCR catalysts are proposed.

Keywords： flue gas     DeNO<sub><i>xi>sub>     SCR catalyst     poison and regeneration    

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<i>Ni>-Positive ion activated rapid addition and mitochondrial targeting ratiometric fluorescent probesfor <i>in vivoi> cell H<sub>2sub>S imaging

Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 64-71 doi: 10.1007/s11705-021-2048-8

Abstract: Heterocyclic compound quinoline and its derivatives exist in natural compounds and have a broad spectrum of biological activity. They play an important role in the design of new structural entities for medical applications. Similarly, indoles and their derivatives are found widely in nature. Amino acids, alkaloids and auxin are all derivatives of indoles, as are dyes, and their condensation with aldehydes makes it easy to construct reaction sites for nucleophilic addition agents. In this work, we combine these two groups organically to construct a rapid response site (within 30 s) for H S, and at the same time, a ratiometric fluorescence response is presented throughout the process of H S detection. As such, the lower detection limit can reach 55.7 nmol/L for H S. In addition, cell imaging shows that this probe can be used for the mitochondrial targeted detection of endogenous and exogenous H S. Finally, this probe application was verified by imaging H S in nude mice.

Keywords： heterocyclic compound     hydrogen sulfide     ratiometric     mitochondrial targeted    

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

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

Abstract:

• CeO<sub>2sub> doping significantly improved low-temperature NH<sub>3sub>-SCR activity on FeTiO<sub><i>xi>sub>.

Keywords： NH<sub>3sub>-SCR     CeO<sub>2sub> doping     Low-temperature NO<sub><i>xi>sub> removal     Improved redoxproperty     <i>In situi> XAFS analysis    

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Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered macroporous SrTiO decorated with ZnCdS

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1561-1571 doi: 10.1007/s11705-021-2089-z

Abstract: In this study, we demonstrate the fabrication of three-dimensionally ordered macroporous SrTiO<sub>3sub> decorated with Zn<sub><i>xi>sub>Cd<sub>1−sub><sub><i>xi>sub>S nanoparticles for hydrogenapparent quantum efficiency of 35.9% at 420 nm, which is 4.2 and 23.9 times higher than those of pure Zn<sub>0.5sub>Cd<sub>0.5sub>S (4.67 mmol·g−1·h−1) and CdS (0.82 mmol·g−1

Keywords： three-dimensionally ordered macroporous SrTiO<sub>3sub>     Zn<sub><i>xi>sub>Cd<sub>1–sub><sub><i>xi>sub>S     visible light     hydrogen production     promotion mechanism    

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Title Author Date Type Operation

Accounting for the uncertainties in the estimation of average shear wave velocity using – correlations

Journal Article

NiFeRuO<sub><i>xi>sub> nanosheets on Ni foam as an electrocatalyst for efficient

Journal Article

polyhedral NiS/NiS nanocrystals with excellent photocatalytic performance for removing rhodamine B and Cr(VI

Journal Article

Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Journal Article

The biosorption of Cr(VI) ions by dried biomass obtained from a chromium-resistant bacterium

Paul Fabrice NGUEMA,Zejiao LUO,Jingjing LIAN

Journal Article

Improved Oxygen Evolution Kinetics and Surface States Passivation of Ni-B<sub>isub> Co-Catalyst for

Ke Dang,Tuo Wang,Chengcheng Li,Jijie Zhang,Shanshan Liu,Jinlong Gong

Journal Article

Thermal and Mechanical Properties Optimization of <i>ABi>O<sub>4sub> Type EuNbO<sub>4sub> By the<i>Bi>-Site Substitution of Ta

Lin Chen, Jing Feng

Journal Article

Biosorption of Cr(VI) by carbonized

Jinfa CHEN,Ping YANG,Dagang SONG,Sha YANG,Li ZHOU,Lei HAN,Bo LAI

Journal Article

Evaluation of H<sub>2sub> on the Evolution Mechanism of NO<sub><i>xi>sub> Storage and Reductionover Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> Catalysts

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Journal Article

NO<sub><i>xi>sub> and H<sub>2sub>S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

Journal Article

Air pollutant control and strategy in coal-fired power industry for promotion of China’s emission reduction

Weiliang WANG, Bo LI, Xuan YAO, Junfu LYU, Weidou NI

Journal Article

Chemical poison and regeneration of SCR catalysts for NO<sub><i>xi>sub>

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Journal Article

<i>Ni>-Positive ion activated rapid addition and mitochondrial targeting ratiometric fluorescent probesfor <i>in vivoi> cell H<sub>2sub>S imaging

Yan Shi, Fangjun Huo, Yongkang Yue, Caixia Yin

Journal Article

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

Journal Article

Superior performance in visible-light-driven hydrogen evolution reaction of three-dimensionally ordered macroporous SrTiO decorated with ZnCdS

Journal Article