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Pd nano-catalyst supported on biowaste-derived porous nanofibrous carbon microspheres for efficient catalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9, Pages 1289-1300 doi: 10.1007/s11705-023-2299-7

Abstract: O-containing groups, as carriers for the manufacture of a highly dispersed, efficient and stable Pd nano-catalystarea could promote the transport of electrons between NCM and Pd, thereby endowing NCM supported Pd catalystThe NCM supported Pd catalyst was employed in the degradation of some representative dyes and the chemoselective

Keywords： biowaste chitin nanofibrous palladium nano-catalyst catalysis

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Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst prepared

Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5, Pages 897-904 doi: 10.1007/s11783-015-0782-1

Abstract: The dendritic nano-structured Cu catalysts obtained at high applied voltages exhibited an excellent efficiencyThe fabricated nano-structured Cu catalysts also exhibited good stability.This work provides a facile way to prepare highly efficient, cost-effective, and stable nano-structured

Keywords： nitrobenzene nano-structured Cu electro-reduction voltage-dependent electrodeposition high selectivity

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Enhanced methanation stability of nano-sized MoS

Zhenhua LI, Jia HE, Haiyang WANG, Baowei WANG, Xinbin MA

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1, Pages 33-39 doi: 10.1007/s11705-014-1446-6

Abstract: A series of unsupported MoS catalysts with or without Al O modification was prepared using a modified thermal decomposition approach. The catalysts were tested for the methanation of carbon monoxide and the optimum one has 25.6 wt-% Al O content. The catalysts were characterized by nitrogen adsorption measurement, X-ray diffraction and transmission electron microscopy. The results show that adding appropriate amount of Al O increases the dispersion of MoS , and the increased interaction force between MoS and Al O can inhibit the sintering of active MoS to some extent.

Keywords： unsupported catalyst molybdenum sulfide stability alumina methanation

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Wang Jianguo: Multi Scale Simulation of Supported Nano Catalyst (2019.5.25)

22 Apr 2021

Keywords：绿色化工

Water-dispersible nano-pollutions reshape microbial metabolism in type-specific manners: A metabolic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1548-1

Abstract:

• Water-dispersible nano-pollutions exhibit type-specific toxic effects

Keywords： Nano-toxicity Nano-plastics Quantum dots Microbial metabolite Metabolic dysregulation

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Laboratory investigation of emulsified asphalt binder modified with wood-derived nano-cellulose and nano

Yunge WEI; Jiayu WANG; Ruoyu LI; Ling XU; Feipeng XIAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11, Pages 1474-1485 doi: 10.1007/s11709-022-0869-2

Abstract: In this study, Styrene-Butadiene Rubber (SBR) emulsified asphalt was modified with nano-cellulose materials, namely nano paper-cellulose (NPC) and wood-derived nano-cellulose (WDC), to improve its properties.A novel preparation method of nano-cellulose solution was developed, including blending, ultrasonic stirringFour types of nano-cellulose solution (0.5% NPC, 0.5%, 1.0%, and 1.5% WDC by weight of water) were selected

Keywords： nano-cellulose emulsified asphalt binder dispersion rheological properties Fourier transform infrared

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Effects of different types of biochar on the properties and reactivity of nano zero-valent iron in soil

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1388-4

Abstract:

• Biochar enhanced the mobility and stability of zero-valent iron nanoparticles.

Keywords： Nano zero-valent iron Biochar BDE209 Transport Soil

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Immunological effects of nano-enabled hyperthermia for solid tumors: opportunity and challenge

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3, Pages 333-344 doi: 10.1007/s11705-021-2059-5

Abstract: Compared to conventional hyperthermia that is limited by low selectivity and severe side effects, nano-enabledAnother major advance is the observation of immunological responses associated with nano-enabled hyperthermiatemperature-gradient and the spatially-structured immunological landscape in solid tumors receiving nano-enabledtype-specific complexity in the immunological tumor microenvironment, including the creative design of nano-enabledcombination therapy to synergize with nano-enabled hyperthermia.

Keywords： nano-enabled hyperthermia immunogenic cell death heterogeneous immunological landscape tumor microenvironment

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Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3, Pages 297-302 doi: 10.1007/s11705-011-1201-1

Abstract: A lattice model of the nanoscaled catalyst layer structure in proton exchange membrane fuel cells (PEMFCThe model takes into account all the four components in a typical PEMFC catalyst layer: platinum (Pt)elemental voxels in the lattice were set fine enough so that each average sized Pt particulate in Pt/C catalystCatalyst utilization in the modeled catalyst layer was calculated by counting up the number of facets, on catalyst utilization were investigated and discussed.

Keywords： catalyst layer PEM fuel cell lattice model Monte Carlo method catalyst utilization

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Behavior of aqueous stable colloidal nano-C

Jing HUO,Ye YU,Ling GE,Bo ZHANG,Yiliang HE

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2, Pages 197-205 doi: 10.1007/s11783-014-0624-6

Abstract: This work examined the behavior of aqueous stable colloidal nano-C (nC ) aggregates under different

Keywords： nano-C₆₀ (nC₆₀) aggregates photochemical reactivity artificial biological membrane

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Mechanical behavior and semiempirical force model of aerospace aluminum alloy milling using nano biological

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0720-4

Abstract: Aerospace aluminum alloy is the most used structural material for rockets, aircraft, spacecraft, and space stations. The deterioration of surface integrity of dry machining and the insufficient heat transfer capacity of minimal quantity lubrication have become the bottleneck of lubrication and heat dissipation of aerospace aluminum alloy. However, the excellent thermal conductivity and tribological properties of nanofluids are expected to fill this gap. The traditional milling force models are mainly based on empirical models and finite element simulations, which are insufficient to guide industrial manufacturing. In this study, the milling force of the integral end milling cutter is deduced by force analysis of the milling cutter element and numerical simulation. The instantaneous milling force model of the integral end milling cutter is established under the condition of dry and nanofluid minimal quantity lubrication (NMQL) based on the dual mechanism of the shear effect on the rake face of the milling cutter and the plow cutting effect on the flank surface. A single factor experiment is designed to introduce NMQL and the milling feed factor into the instantaneous milling force coefficient. The average absolute errors in the prediction of milling forces for the NMQL are 13.3%, 2.3%, and 7.6% in the x-, y-, and z-direction, respectively. Compared with the milling forces obtained by dry milling, those by NMQL decrease by 21.4%, 17.7%, and 18.5% in the x-, y-, and z-direction, respectively.

Keywords： milling force nanofluid minimum quantity lubrication aerospace aluminum alloy nano biological lubricant

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Nano-measuring Instruments and Nano-machining Technology

Yao Junen

Strategic Study of CAE 2003, Volume 5, Issue 1, Pages 33-37

Abstract: Nano-measurement and nano-machining play a very important and key role in the nanoscience and nanotechnologyConventional electron microscope is a major nano-measuring instrument.probe microscope and focused ion beam-electron beam (dual beam) equipment are two types of powerful nano-measuringinstruments and nano-machining tools.

Keywords： nanotechnology nano-measurement nano-machining electron microscope scanning probe microscope focused

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Oxidant or catalyst for oxidation?

Jianzhi Huang, Huichun Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1158-8

Abstract: Manganese oxides (MnOx) have been demonstrated to be effective materials to activate Oxone (i.e., PMS) to degrade various contaminants. However, the contribution of direct oxidation by MnOx to the total contaminant degradation under acidic conditions was often neglected in the published work, which has resulted in different and even conflicting interpretations of the reaction mechanisms. Here, the role of MnOx (as both oxidants and catalysts) in the activation of Oxone was briefly discussed. The findings offered new insights into the reaction mechanisms in PMS-MnOx and provided a more accurate approach to examine contaminant degradation for water/wastewater treatment.

Keywords： Peroxymonosulfate Manganese oxides Catalyst Oxidant

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Monte Carlo simulation of the PEMFC catalyst layer

WANG Hongxing, CAO Pengzhen, WANG Yuxin

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2, Pages 146-150 doi: 10.1007/s11705-007-0027-3

Abstract: of the polymer electrolyte membrane fuel cell (PEMFC) is greatly controlled by the structure of the catalystLow catalyst utilization is still a significant obstacle to the commercialization of the PEMFC.on the catalyst utilization and the performance of the PEMFC.The model can predict the effects of some catalyst layer components, such as Pt/C catalyst, electrolyteand gas pores, on the utilization of the catalyst and the cell performance.

Keywords： catalyst utilization PEMFC commercialization Pt/C catalyst conduction

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Bicontinuous porous membranes with micro-nano composite structure using a facile atomization-assisted

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8, Pages 1268-1280 doi: 10.1007/s11705-022-2143-5

Abstract: The micro-nano composite structure can endow separation membranes with special surface properties, butBy using this method, a bicontinuous porous microfiltration membrane with robust micro-nano compositeThe formation mechanism of the micro-nano composite structure was proposed.hydrogen bonding between polyacrylonitrile and polyvinylpyrrolidone molecules should have resulted in the nano-protrusions

Keywords： atomization nonsolvent induced phase separation bicontinuous porous structure micro-nano composite