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Floret-like Fe–N nanoparticle-embedded porous carbon superstructures from a Fe-covalent triazine polymer

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 525-535 doi: 10.1007/s11705-022-2232-5

Abstract: Fe–N<sub><i>xi>sub> nanoparticles-embedded porous carbons with a desirable superstructure have attractedHerein, we employed Fe-coordinated covalent triazine polymer for the fabrication of Fe–N<sub><i>xi>sub> nanoparticle-embedded porous carbon nanoflorets (Fe/N@CNFs) employing a hypersaline-confinement-conversionto the generation of Fe/N coordination and subsequent Fe–N<sub><i>xi>sub> nanoparticles.Owing to the utilization of NaCl crystals, the resultant Fe/N@CNF-800 which was generated by pyrolysis

Keywords： Fe–N<sub><i>xi>sub> nanoparticles     hypersaline-confinement conversion     floret-like carbon     covalent    

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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 specificcompositions and modifying the electronic structure of the carbon nanotube through the encapsulated metal nanoparticleson M<sub><i>xi>sub>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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Recent advances in special morphologic photocatalysts for NO removal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1573-0

Abstract:

● Systematic information of recent progress in photocatalytic NO<sub> <i> x i>sub> removal is provided.

Keywords： NO<sub><i>xi>sub> removal     Photocatalyst     Graphene     C<sub>3sub>N<sub>4sub>     Bi-based compounds    

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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> nanosheetsNiFeRuO<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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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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NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1973-1985 doi: 10.1007/s11705-023-2364-2

Abstract: Notably, the optimized 10Fe-8Cu/TiO<sub>2sub> catalyst exhibited exceptional catalytic performancein converting NO to NH<sub>3sub>, achieving an NO conversion rate exceeding 80% and an NH<sub>3subWe employed <i>in situi> diffuse reflectance Fourier transform infrared spectroscopy and conducteddemonstrate that Cu doping enhances the rate-limiting hydrogenation step and lowers the energy barrier for NH<sub>3sub> desorption, thereby resulting in improved NO conversion and enhanced selectivity toward ammonia

Keywords： NO hydrogenation     synthetic ammonia     10Fe-<i>xi>Cu/TiO<sub>2sub>     high selectivity    

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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: >xsub>) storage and reduction (NSR).>xsub>, CeO<sub>2sub>, and BaCO<sub>3sub>, whose peaks were observed in X-ray diffractionIn the process of a complete NSR experiment, the NO<sub>xsub> storage capability was greatlyand conversion were increased when the time of H<sub>2sub> exposure (i.e., 30 s, 45 s, and 60 s) wasThe maximum NO<sub>xsub> conversion of the catalyst reached 83.5% when the duration of the

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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Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0976-9

Abstract: N O is a powerful greenhouse gas and plays an important role in destructing the ozone layer.This present work investigated the effects of Pd doping on N O formation over Pt/BaO/Al O catalyst.Compared with Pt/BaO/Al O , (Pt/BaO/Al O +Pd/Al O ) produced less N O and more NH during NO storageleading to a decrease in N O formation.Most of N O formed over (Pt-Pd/BaO/Al O +Al O ) was originated from Pd/BaO/Al O component.

Keywords： NO<sub><i>xi>sub> storage reduction     Pt/BaO/Al<sub>2sub>O<sub>3sub>     Pd doping     N<sub>2sub>O formation    

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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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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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Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11684-022-1565-0

Abstract:

● Cu addition enhances CH<sub>3sub>OH oxidation and alleviates

Keywords： Copper modification     Sb-CeZr<sub>2sub>O<sub><i>xi>sub> catalyst     NO<sub><i>xi>sub>     Methanol    

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Deciphering the Origins of P1-Induced Power Losses in Cu(In<sub><i>xi>sub>,Ga<sub>1–<i>xi>sub>)Se<sub>2sub> (CIGS) Modules Through Hyperspectral Luminescence Article

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Engineering 2020, Volume 6, Issue 12,   Pages 1395-1402 doi: 10.1016/j.eng.2019.12.019

Abstract: optimiz1ation of the laser ablation processes used for the patterning interconnections of subcells on Cu(In<sub>xsub>,Ga<sub>1-xsub>)Se<sub>2sub> (CIGS) modules.

Keywords： Cu(Inx     Ga1-x)Se2     Cell-to-module efficiency gap     P1-induced power losses     Hyperspectral photoluminescence    

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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 hazardi> <sub>Ssub> calculations.The measured SPT– <i>Ni> values from all the critical boreholes were converted into statistical parametersThe 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.

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

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Photosynthesis and related metabolic mechanism of promoted rice (<i>Oryza sativai> L.) growth by TiO<sub>2sub> nanoparticles

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1282-5

Abstract: Abstract • The rice growth was promoted by nano-TiO2 of 0.1–100 mg/L. • Nano-TiO2 enhanced the energy storage in photosynthesis. • Nano-TiO2 reduced energy consumption in carbohydrate metabolism and TCA cycle. Titanium dioxide nanoparticle (nano-TiO2), as an excellent UV absorbent and photo-catalyst, has been widely applied in modern industry, thus inevitably discharged into environment. We proposed that nano-TiO2 in soil can promote crop yield through photosynthetic and metabolic disturbance, therefore, we investigated the effects of nano-TiO2 exposure on related physiologic-biochemical properties of rice (Oryza sativa L.). Results showed that rice biomass was increased >30% at every applied dosage (0.1–100 mg/L) of nano-TiO2. The actual photosynthetic rate (Y(II)) significantly increased by 10.0% and 17.2% in the treatments of 10 and 100 mg/L respectively, indicating an increased energy production from photosynthesis. Besides, non-photochemical quenching (Y(NPQ)) significantly decreased by 19.8%–26.0% of the control in all treatments respectively, representing a decline in heat dissipation. Detailed metabolism fingerprinting further revealed that a fortified transformation of monosaccharides (D-fructose, D-galactose, and D-talose) to disaccharides (D-cellobiose, and D-lactose) was accompanied with a weakened citric acid cycle, confirming the decrease of energy consumption in metabolism. All these results elucidated that nano-TiO2 promoted rice growth through the upregulation of energy storage in photosynthesis and the downregulation of energy consumption in metabolism. This study provides a mechanistic understanding of the stress-response hormesis of rice after exposure to nano-TiO2, and provides worthy information on the potential application and risk of nanomaterials in agricultural production.

Keywords： Nano-TiO<sub>2sub>     Rice     Photosynthesis     Metabolomics     Energy storage    

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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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Title Author Date Type Operation

Floret-like Fe–N nanoparticle-embedded porous carbon superstructures from a Fe-covalent triazine polymer

Journal Article

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

Journal Article

Recent advances in special morphologic photocatalysts for NO removal

Journal Article

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

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

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

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

Effects of Pd doping on N

Mingxin Dong, Jun Wang, Jinxin Zhu, Jianqiang Wang, Wulin Wang, Meiqing Shen

Journal Article

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

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

Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Journal Article

Deciphering the Origins of P1-Induced Power Losses in Cu(In<sub><i>xi>sub>,Ga<sub>1–<i>xi>sub>)Se<sub>2sub> (CIGS) Modules Through Hyperspectral Luminescence

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

Journal Article

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

Journal Article

Photosynthesis and related metabolic mechanism of promoted rice (<i>Oryza sativai> L.) growth by TiO<sub>2sub> nanoparticles

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

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