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Comprehensive strengthening mechanism of steel based on nano scale cementite precipitates

Fu Jie,Li Guangqiang,Yu Yueguang,Mao Xinping,Fang Keming

Strategic Study of CAE 2011, Volume 13, Issue 1,   Pages 31-42

Abstract: analysis, X-ray small-angle scattering, RTO and high-resolution TEM observation, the properties of nano-scaleExcept nano-scale TiC, cementites precipitates less than 36 nm and high volume fraction were also foundCementite with high volume fraction has stronger precipitation strengthening effect than that of nano-scaleTiC, which can not be ignored.The precipitation strengthening contributions of nano-scale precipitatesproposed, and the calculated yield strength considering the precipitation strengthening contributions of nano-scale

Keywords： yield strength     nano-scale cementite     nano-scale titanium carbide     precipitation strengthening     comprehensive    

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The effect of doping and steam treatment on the catalytic activities of nano-scale H-ZSM-5 in the methanol

Baodong Song, Yongqiang Li, Gang Cao, Zhenhai Sun, Xu Han

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 564-574 doi: 10.1007/s11705-017-1654-y

Abstract: The catalytic activities of steam-treated and non-steam-treated nano-scale H-ZSM-5 (NHZ5) catalysts impregnated

Keywords： MTG     nano-scale H-ZSM-5     steam treatment     gasoline     selectivity to gasoline    

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A nano-scale alignment method for imprint lithography

WANG Li, LU Bing-heng, DING Yu-cheng, QIU Zhi-hui, LIU Hong-zhong

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 157-161 doi: 10.1007/s11465-006-0014-2

Abstract: A novel nano-scale alignment technique based on moiré signal for room-temperature imprint lithography

Keywords： submicron     alignment accuracy     nano-scale alignment     quadruple     room-temperature    

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Strengthening of polysulfone membranes using hybrid mixtures of micro- and nano-scale modifiers

Peyman P. Selakjani, Majid Peyravi, Mohsen Jahanshahi, Hamzeh Hoseinpour, Ali S. Rad, Soodabeh Khalili

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 174-183 doi: 10.1007/s11705-017-1670-y

Abstract: Polysulfone (PSf) membranes were modified by either a new organic modifier (sulfonated poly(ether sulfide sulfone), SPESS) or a traditional modifier (rice hulk). These membranes were further reinforced with either multi-walled carbon nanotubes (MWCNTs) or silica nanoparticles. Having a dye rejection of 98.46%, the reinforced membranes increased more than 50% in strength but no change in solution flux was observed. The morphological and roughness studies were conducted using scanning electron microscopy and atomic force microscopy. Moreover, the PSF membranes were also characterized by differential scanning calorimetry. Modifying the membranes with organic modifier or nanofiller increases the glass transition temperature ( ). The highest and strength were observed for the PSf-SPESS-MWCNT membrane. SPESS decreases surface roughness but MWCNT increases roughness on the nanoscale. All membranes show a bimodal pore size distribution, whereas the PSf-SPESS-MWCNT membrane exhibits a relatively uniform distribution of macroscopic and microscopic pores.

Keywords： polysulfone membrane     mechanical properties     micro- and nano-modification     binary and ternary system     dye    

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Fabrication and characterization of typical nano-scale structures

Jiang Zhuangde,Wang Chenying,Yang Shuming

Strategic Study of CAE 2013, Volume 15, Issue 1,   Pages 15-20

Abstract:

Three types of nano-scale structure have been fabricated and characterized using SEM, AFM, In this paper, multilayer thin film deposition technique has been used to fabricate nano-scale structureSingle and multiple nano steps have been fabricated using FIB technique, and the relationship between

Keywords： nanoline     nanostep     EBL     ICP     FIB    

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Achievements and trends of solid oxide fuel cells in clean energy field: a perspective review

Abdalla M. ABDALLA, Shahzad HOSSAIN, Pg MohdIskandr PETRA, Mostafa GHASEMI, Abul K. AZAD

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 359-382 doi: 10.1007/s11708-018-0546-2

Abstract: The main concerns in the world today, especially in the energy field, are subjected to clean, efficient, and durable sources of energy. These three aspects are the main goals that scientist are paying attention to. However, the various types of energy resources include fossil and sustainable ones, but still some challenges are chasing these kinds from energy conversion, storage, and efficiency. Hence, the most reliable and considered energy resource nowadays is the utilized one which is as highly efficient, clean, and everlasting as possible. So, in this review, an attempt is made to highlight one of the promising types as a clean and efficient energy resource. Solid oxide fuel cell (SOFC) is the most efficient type of the fuel cell types involved with hydrogen and hydrocarbon-based fuels, especially when it works with combined heat and power (CHP). The importance of this type is due to its nature of work as conversion tool from chemical to electrical for generation of power without noise, pollution, and can be safely handled.

Keywords： solid oxide fuel cells (SOFCs)     clean energy     design     micro-scale     nano-scale     performance    

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Interactions between nano-TiO

Mingyu LIN,Yao Hsiang TSENG,Chin-Pao HUANG

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 242-257 doi: 10.1007/s11705-015-1513-7

Abstract: Nano-sized titanium dioxide (nano-TiO ) has wide industrial applications and therefore considerable chancesTo better understand the interactions between nano-TiO and aquatic organisms, we first studied TiOuptake by algae exemplified by were exposed to nano-TiO in a series of concentrations and at various

Keywords： nano-TiO2     Pseudokirchneriella subcapitata     algal cells     titanium dioxide uptake    

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Low temperature synthesis of visible light responsive rutile TiO

John TELLAM, Xu ZONG, Lianzhou WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 53-57 doi: 10.1007/s11705-011-1165-1

Abstract: A nano-structured TiO with rutile phase was synthesized by using the hydrothermal method from a titaniumcarbide (TiC) nano-powder precursor at low temperature to produce a stable visible light responsiveThe rutile particles showed a faceted nano-rod structure, and were tested for absorption and photo-degradation

Keywords： photocatalysis     rutile     TiO2     hydrothermal     visible     titanium carbide    

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Three-scale stochastic homogenization of elastic recycled aggregate concrete based on nano-indentation

Chen WANG, Yuching WU, Jianzhuang XIAO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 461-473 doi: 10.1007/s11709-017-0441-7

Abstract: In this paper, three-scale stochastic elastic finite element analyses are made for recycled aggregateconcrete (RAC) based on nano-indentation digital images.stochastic elastic moduli of RAC at three different scales are obtained using moving window technique, nano-indentation

Keywords： RAC     nano-indentation digital image     multiscale     microscopic randomness     homogenization    

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Remediation of 2,4-dichlorophenol-contaminated groundwater using nano-sized CaO in a two-dimensionalscale tank

Frontiers of Environmental Science & Engineering 2020, Volume 15, Issue 5, doi: 10.1007/s11783-020-1381-3

Abstract:

• Nano CaO2 is evaluated as a remediation agent for 2,4-DCP

Keywords： Calcium peroxide     2     4-DCP     Reaction zone     Fenton reaction    

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Silicon carbide waste as a source of mixture materials for cement mortar

Zhengwu Jiang, Qiang Ren, Haoxin Li, Qing Chen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0974-y

Abstract: This paper presents an investigation of the feasibility of recycling silicon carbide waste (SCW) as a

Keywords： Silicon carbide waste     Cement mortar     Fluidity     Strength     Shrinkage    

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Anodization of titanium alloys for orthopedic applications

Merve İzmir, Batur Ercan

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 28-45 doi: 10.1007/s11705-018-1759-y

Abstract:

In recent years, nanostructured oxide films on titanium alloy surfaces have gained significant interestand titanium alloys and summarizes the interactions between anodized titanium alloy surfaces with cellsIt will start with summarizing the mechanism of nanofeatured oxide fabrication on titanium alloys andthen switch its focus on the latest findings for anodization of titanium alloys, including the use offluoride free electrolytes and anodization of 3D titanium foams.

Keywords： titanium alloys     anodization     biocompatibility     orthopedics    

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Titanium: The Metal Giant in the New Millennium

Yang Yuchun

Strategic Study of CAE 2002, Volume 4, Issue 3,   Pages 21-31

Abstract:

The rise and development of the extraction of titanium sponge and the manufacture of titanium millThe wide application and important role of metallic titanium, titanium products and titanium-based alloysThe market prospect for titanium industry in the new millennium is forecast and some suggestions on thebetter development of titanium industry are put forward.

Keywords： titanium     titanium sponge     titanium products     titanium industry     market demand and supply of titanium    

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Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 372-375 doi: 10.1007/s11705-010-0570-1

Abstract: Calcium carbide was successfully synthesized by carbothermal reduction of lime with coke at 1973 K forAddition of potassium carbonate increased the yield of calcium carbide.This result confirmed the catalytic effect of potassium carbonate on the synthesis of calcium carbidethe contact between CaO and carbon, which was essential for the solid-solid reaction to form calcium carbide

Keywords： calcium carbide     synthesis     catalysis    

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Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 930-938 doi: 10.1007/s11705-021-2130-2

Abstract: Ammonia electrooxidation reaction involving multistep electron-proton transfer is a significant reaction for fuel cells, hydrogen production and understanding nitrogen cycle. Platinum has been established as the best electrocatalyst for ammonia oxidation in aqueous alkaline media. In this study, Pt/nitrogen-doped graphene (NDG) and Pt/tungsten monocarbide (WC)/NDG are synthesized by a wet chemistry method and their ammonia oxidation activities are compared to commercial Pt/C. Pt/NDG exhibits a specific activity of 0.472 mA∙cm–2, which is 44% higher than commercial Pt/C, thus establishing NDG as a more effective support than carbon black. Moreover, it is demonstrated that WC as a support also impacts the activity with further 30% increase in comparison to NDG. Surface modification with Ir resulted in the best electrocatalytic activity with Pt-Ir/WC/NDG having almost thrice the current density of commercial Pt/C. This work adds insights regarding the role of NDG and WC as efficient supports along with significant impact of Ir surface modification.

Keywords： Ammonia electro-oxidation reaction     electrocatalyst supports     platinum     nitrogen doped graphene     tungsten carbide    

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Title Author Date Type Operation

Comprehensive strengthening mechanism of steel based on nano scale cementite precipitates

Fu Jie,Li Guangqiang,Yu Yueguang,Mao Xinping,Fang Keming

Journal Article

The effect of doping and steam treatment on the catalytic activities of nano-scale H-ZSM-5 in the methanol

Baodong Song, Yongqiang Li, Gang Cao, Zhenhai Sun, Xu Han

Journal Article

A nano-scale alignment method for imprint lithography

WANG Li, LU Bing-heng, DING Yu-cheng, QIU Zhi-hui, LIU Hong-zhong

Journal Article

Strengthening of polysulfone membranes using hybrid mixtures of micro- and nano-scale modifiers

Peyman P. Selakjani, Majid Peyravi, Mohsen Jahanshahi, Hamzeh Hoseinpour, Ali S. Rad, Soodabeh Khalili

Journal Article

Fabrication and characterization of typical nano-scale structures

Jiang Zhuangde,Wang Chenying,Yang Shuming

Journal Article

Achievements and trends of solid oxide fuel cells in clean energy field: a perspective review

Abdalla M. ABDALLA, Shahzad HOSSAIN, Pg MohdIskandr PETRA, Mostafa GHASEMI, Abul K. AZAD

Journal Article

Interactions between nano-TiO

Mingyu LIN,Yao Hsiang TSENG,Chin-Pao HUANG

Journal Article

Low temperature synthesis of visible light responsive rutile TiO

John TELLAM, Xu ZONG, Lianzhou WANG

Journal Article

Three-scale stochastic homogenization of elastic recycled aggregate concrete based on nano-indentation

Chen WANG, Yuching WU, Jianzhuang XIAO

Journal Article

Remediation of 2,4-dichlorophenol-contaminated groundwater using nano-sized CaO in a two-dimensionalscale tank

Journal Article

Silicon carbide waste as a source of mixture materials for cement mortar

Zhengwu Jiang, Qiang Ren, Haoxin Li, Qing Chen

Journal Article

Anodization of titanium alloys for orthopedic applications

Merve İzmir, Batur Ercan

Journal Article

Titanium: The Metal Giant in the New Millennium

Yang Yuchun

Journal Article

Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Journal Article

Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction

Journal Article