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Effects of ionic impurities on crystallization of cobalamin

Baoli SHAO, Hui CHEN, Shuang WANG, Haijun WANG, Shenmin XU,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 70-74 doi: 10.1007/s11705-009-0293-3

Abstract: In this paper, the influence of two typical ionic impurities (Na and Mg) is investigated with the focused

Keywords： cobalamin     impurity     particle     addition     technique    

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Studies on the Inhibition of Impurities in Caustic Decomposition of Tungsten Concentrates

Li Honggui,Li Yunjiao,Sun Peimei,Liu Maosheng

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 59-61

Abstract:

The Inhibition of impurities of As, P, Si and Sn in the caustic decomposition of tungsten concentratesscheelite (CaWO4) and Ca(OH)2, during caustic decomposition of sdheelite with NaOH, impuritiesfrom caus-tic decomposition of wolframite concentrates with the same contents of WO3 and impurities

Keywords： metallurgy of tungsten     caustic decomposition     inhibition of impurities    

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Behavior of Impurities, Defects and Surface Morphology for Silicon and Silicon Based Semiconducting Materials

Tu Hailing

Strategic Study of CAE 2000, Volume 2, Issue 1,   Pages 7-17

Abstract: diameter crystals and wafers bring about a number of technological problems and on the other hand, impuritiesNew finding of metallic impurities such as copper and iron has been particularly described.

Keywords： silicon wafers     epitaxial silicon wafers     SiGe     silicon-on-insulator (SOI)     impurities behavior     defects control    

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Perspective of mixed matrix membranes for carbon capture

Shinji Kanehashi, Colin A. Scholes

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 460-469 doi: 10.1007/s11705-019-1881-5

Abstract: Polymeric membrane-based gas separation has found wide applications in industry, such as carbon capture, hydrogen recovery, natural gas sweetening, as well as oxygen enrichment. Commercial gas separation membranes are required to have high gas permeability and selectivity, while being cost-effective to process. Mixed matrix membranes (MMMs) have a composite structure that consists of polymers and fillers, therefore featuring the advantages of both materials. Much effort has been made to improve the gas separation performance of MMMs as well as general membrane properties, such as mechanical strength and thermal stability. This perspective describes potential use of MMMs for carbon capture applications, explores their limitations in fabrication and methods to overcome them, and addresses their performance under industry gas conditions.

Keywords： membranes     polymeric     mixed matrix     impurities    

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Detailed analysis of PCBs and PCDD/Fs impurities in a dielectric oil sample (ASKAREL Nr 1740) from an

Jun HUANG, Yamei HUI, Toru MATSUMURA, Gang YU, Shubo DENG, Makoto YAMAUCHI, Changmin WU, Norimasa YAMAZAKI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 195-204 doi: 10.1007/s11783-013-0527-y

Abstract: Homolog and congener profiles of polychlorinated biphenyls (PCBs), polychlorinated dibenzo- - dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in commercial PCBs formulations are useful information for the source appointment of PCBs contamination as well as the risk assessment caused by potential exposure. Dielectric oil (ASKAREL Nr 1740) in an imported transformer found in China was sampled and analyzed by isotope dilution technology using high resolution gas chromatography-high resolution mass spectrometry (HRGC/HRMS). The detailed homolog and congener profiles of PCBs obtained were compared with those of known Aroclor formulations. High similarity in the homolog profile between the oil sample and Aroclor 1260 was found, with the hexachlorinated and heptachlorinated biphenyls accounting for more than 80.2% of the total PCBs concentration. Severn indicator PCBs contribute about 30%, while 12 PCB congeners (i.e., #153, #143, #168, #180, #149, #165, #138, #170, #190, #187, #174, #181) account for more than 50% of the total PCB concentrations. Total concentration of PCDDs, PCDFs and dioxin-like PCBs (DL-PCBs) was found to be 740 ng TEQ/g, of which 620 ng TEQ/g came from DL-PCBs. The contribution of PCDDs to the total TEQ was neglectable. The concentration of PCDFs homologs follows the order of OCDF>HxCDFs>HpCDFs>PeCDFs>TeCDFs, which is in consistence with the previous study on Aroclor 1260. Three DL-PCBs congeners (i.e., #118, #156, #157) accounted for 77% of the total concentration of DL-PCBs, also they contribute 72% in the TEQ caused by DL-PCBs.

Keywords： profiles of polychlorinated biphenyls (PCBs)     polychlorinated dibenzo-p-dioxins (PCDDs)     polychlorinated dibenzofurans (PCDFs)     Askarel transformer     insulating fluid    

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Laser enhanced gettering of silicon substrates

Daniel CHEN,Matthew EDWARDS,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 23-31 doi: 10.1007/s11708-016-0441-7

Abstract: The removal of such impurities from multicrystalline wafers using the laser process can result in intra-grain

Keywords： gettering     multicystaline     silicon     impurities     laser doping    

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Impact of thermal processes on multi-crystalline silicon

Moonyong KIM,Phillip HAMER,Hongzhao LI,David PAYNE,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 32-41 doi: 10.1007/s11708-016-0427-5

Abstract: defects hence improving the performance, thermal effects during fast firing can dissolve precipitating impuritiessuch as iron or de-getter impurities hence lower the performance, leading to a poisoning of the intra-grain

Keywords： gettering     grain boundaries     hydrogen     impurities     oxidation     passivation     solar cell    

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Corrosion behavior of metallic alloys in molten chloride salts for thermal energy storage in concentrated solar power plants: A review

Wenjin Ding, Alexander Bonk, Thomas Bauer

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 564-576 doi: 10.1007/s11705-018-1720-0

Abstract: Emphasis has also been given on salt purification to reduce corrosive impurities in molten chloridesand development of electrochemical techniques to in-situ monitor corrosive impurities in molten

Keywords： corrosion mechanisms     impurities     metallic corrosion     salt purification     electrochemical techniques    

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Metal Corrosion in Carbon Capture, Utilization, and Storage: Progress and Challenges

Xiang Yong , Yuan Yu , Zhou Pei , Liu Guangsheng , Lyu Wei , Li Mingxing , Zhang Chunxia , Zhou Qingjun , Zhao Xuehui , Yan Wei

Strategic Study of CAE 2023, Volume 25, Issue 3,   Pages 197-208 doi: 10.15302/J-SSCAE-2023.07.026

Abstract: storage systems under the long-term coupled effects of ultra-high CO2 partial pressure, carbon source impuritiesurgently in the future is prospected, including the corrosion impact of different carbon source impurities

Keywords： carbon capture     utilization     and storage     carbon source impurities     corrosion environment characteristics    

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Title Author Date Type Operation

Effects of ionic impurities on crystallization of cobalamin

Baoli SHAO, Hui CHEN, Shuang WANG, Haijun WANG, Shenmin XU,

Journal Article

Studies on the Inhibition of Impurities in Caustic Decomposition of Tungsten Concentrates

Li Honggui,Li Yunjiao,Sun Peimei,Liu Maosheng

Journal Article

Behavior of Impurities, Defects and Surface Morphology for Silicon and Silicon Based Semiconducting Materials

Tu Hailing

Journal Article

Perspective of mixed matrix membranes for carbon capture

Shinji Kanehashi, Colin A. Scholes

Journal Article

Detailed analysis of PCBs and PCDD/Fs impurities in a dielectric oil sample (ASKAREL Nr 1740) from an

Jun HUANG, Yamei HUI, Toru MATSUMURA, Gang YU, Shubo DENG, Makoto YAMAUCHI, Changmin WU, Norimasa YAMAZAKI

Journal Article

Laser enhanced gettering of silicon substrates

Daniel CHEN,Matthew EDWARDS,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Journal Article

Impact of thermal processes on multi-crystalline silicon

Moonyong KIM,Phillip HAMER,Hongzhao LI,David PAYNE,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Journal Article

Corrosion behavior of metallic alloys in molten chloride salts for thermal energy storage in concentrated solar power plants: A review

Wenjin Ding, Alexander Bonk, Thomas Bauer

Journal Article

Metal Corrosion in Carbon Capture, Utilization, and Storage: Progress and Challenges

Xiang Yong , Yuan Yu , Zhou Pei , Liu Guangsheng , Lyu Wei , Li Mingxing , Zhang Chunxia , Zhou Qingjun , Zhao Xuehui , Yan Wei

Journal Article