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| 1 | Low-temperature catalytic oxidation of NO over Mn-Ce-O_x catalyst显示文摘A series of manganese-cerium oxide catalysts were prepared by different methods and used for low-temperature catalytic oxidation of NO in the presence of excess O2.Their surface properties were evaluated by means of BET and were characterized by using scanning electron microscopy(SEM) and X-ray diffractometer(XRD).The activity test of Mn-Ce-Ox catalysts showed that addition of Ce enhanced the activities of NO oxidation.The most active catalysts with a molar Ce/(Mn+Ce) ratio of 0.3 were prepared by co-precipitation method.The results showed that NO conversion reached 60% at 150 °C with a high space velocity of 50902 h-1.The effect of doping different rare earth oxides was also investigated and the addition of small amount of Ce not only increased the surface area of MnOx but also enhanced the dispersion of Mn species in the catalyst shown by BET,SEM and XRD. | 李华 唐晓龙 易红宏 于丽丽 | 2010 | Journal of Rare Earths2010，28，1： | 14 |
| 2 | Characteristics of rare earth elements and cerium anomalies in cherts from the Paleo-Tethys in Changning-Menglian belt in western Yunnan, China显示文摘Based on research on rare earth elements (REEs) and cerium anomalies in cherts from the Paleo-Tethys, their depositional environments are shown and the evolution of the Paleo-Tethys is traced. The amount of terrigenous, biogenic and hydrothermal inputs are the important factors that affect the REEs composition of the cherts. | 丁林 钟大赉 | 1996 | Science China Earth Sciences1996，39，1： | 12 |
| 3 | RESEARCH ON THE APPLICATION OF RARE EARTHS IN IRON AND STEEL IN RECENT YEARS显示文摘China has the biggest rare earths resource in the world,no wonder she pays much at-tention to the application of rare earth metals (REM).The application of REM in iron andsteel in China began at the end of 1950’s.The production of REM-treated iron and steelhad been made steady progress in the period of 1980’s.The production of REM-treatediron and steel in 1989 was 1.4 million tons and 250,000 tons respectively.The interest oftreating steel with REM in China keeps growing even in these years,It comes from the nat- | 余宗森 | 1990 | Journal of Rare Earths1990，8，2： | 10 |
| 4 | CHEMICAL BEHAVIOR OF CERIUM ELEMENT IN ROCK WEATHERING SYSTEM显示文摘1INTRODUCTIONTheelectronicstructureofgroundstateatomceriumisXe4f15d16s2,andtheelectronicstructureoftrivalentoxidizingstateisX... | Chi, Ru'an Zhu, Guocai Zhang, Ping Xu, Yinghui | 1999 | 中国有色金属学会会刊:英文版1999，9，1： | 10 |
| 5 | Hydrolysis Activities of Resins of Complexes Made from Polysaccharides and Ce^(4+)显示文摘Resins of complexes made from agarose-Ce4+ (RCA-Ce) and chitosan-Ce4+ (RCC-Ce) were prepared. Hydrolysis rates of methamidophos, omethoate and chlorpyrifos treated by RCA-Ce were 32.39%, 27.12% and 46.62%, respectively, those of chlorpyrifos and methamidophos in mung bean sprout juice 38.28% and 35.45%, and that of chlorpyrifos in tea extract 59.76%. Hydrolysis rates of protein in tea extract treated by RCA-Ce increased by 86.46%. RCC-Ce could be employed in the apple juice production. The contents of methamidophos and parathion-methyl in the juice treated by RCC-Ce decreased 58.76% and 71.92%. Furthermore, RCC-Ce was used to clarification for beer by the ways of a column. RCC-Ce could hydrolyze sensitive protein and increase contents of free amino acid in the beer. Therefore, the beer treated by RCC-Ce could stay oxidation and aging procedure due to some metal ions being absorbed by RCC-Ce. | 于丽娜 汪东风 李海燕 苏琳 王家林 | 2006 | Journal of Rare Earths2006，24，z2： | 8 |
| 6 | Preparation,characterization and catalytic oxidation property of CeO_2/Cu^(2+)-attapulgite (ATP) nanocomposites显示文摘Cerium oxide(CeO2) coated on copper modified attapulgite clay nanocomoposite(CeO2/Cu2+-ATP) was prepared by homogeneous deposition method.The microstructures of the as-prepared CeO2/Cu2+-ATP nanocomposites were characterized by X-ray diffraction(XRD),energy-dispersive spectrometer(EDS) and transmission electron microscopy(TEM).The results indicated that CeO2 particles with average size of about 5 nm were loaded onto the Cu2+-ATP and were widely dispersed.Comparing the catalytic activity of ATP/CeO2 and CeO2/Cu2+-ATP,the catalytic activity was improved when a small quantity of Cu2+ was introduced.The loading amount of CeO2 and reaction temperature had important effects on decolorization ratio of methyl orange(MO).When the loading amount and reaction temperature were 70% and 338 K,respectively,the decolorization ratio of MO reached over 99%,which showed excellent catalytic activity. | 游静 陈丰 赵晓兵 陈志刚 | 2010 | Journal of Rare Earths2010，28，S1： | 8 |
| 7 | 氧化铈纳米粒子的抗菌机理及应用(英文)显示文摘纳米材料因其特殊的抗菌机理,在抗菌领域得到了广泛应用.氧化铈纳米粒子是重要的抗菌材料之一,具有对正常细胞毒性低,且抗菌机理基于可逆价态转化的优势.目前已有许多关于氧化铈纳米粒子抗菌活性的研究报道,但系统性探究其抗菌机理的文章则极为少见.本文首先系统性地探究了氧化铈纳米粒子可能的抗菌机理,即静电相互作用在抗菌过程中发挥重要作用,此外抗菌过程还伴随活性氧物种的产生和纳米粒子对细菌的机械损伤.其次,本文分析了氧化铈纳米粒子抗菌效果的影响因素,并总结了不同研究中氧化铈纳米粒子对大肠杆菌和金黄葡萄球菌的抗菌效果.最后提出了氧化铈纳米粒子可能的应用前景.本文将有利于对氧化铈纳米粒子抗菌机理的深入理解,并为该类材料在未来的设计和应用提供借鉴. | 张萌真 张超 翟欣昀 罗锋 杜亚平 严纯华 | 2019 | Science China Materials2019，62，11： | 8 |
| 8 | Influence of Cerium on Solidification Microstructure of M2 High Speed Steel显示文摘The influence of Ce on the solidification microstructures of M2 high speed steel was studied. The results show that Ce has the effect of alleviating the segregation of alloying elements such as W and Mo in high speed steel. With the addition of Ce, the amount of eutectic carbides is decreased and the flakes of the carbides are refined. Ce mainly segregates onto the interface between the eutectic carbide and austenite, and a part of Ce enters M 2C carbide. Ce can also enhance the breaking and spheroidizing of the net work eutectic carbides during high temperature heat treatment. | 李彦军 姜启川 赵宇光 何镇明 钟雪友 | 2000 | Journal of Rare Earths2000，18，2： | 7 |
| 9 | Doublely-doped Mg-Al-Ce-V_(2)O_(7)^(4-)LDH composite film on magnesium alloy AZ31 for anticorrosion显示文摘A doublely-doped layered double hydroxide(LDH)film was produced on an anodized magnesium alloy AZ31.The Ce-doped Mg-Al LDH film was prepared by in-situ hydrothermal treatment method,and the intercalation of vanadate was realized by ion-exchange reaction.The structure,morphology and composition of as-prepared LDH film were investigated by X-ray diffractometer,field-emission scanning electronic microscope and energy dispersive spectrometry.Results indicated that a uniform and compact LDH film was formed and the intercalation of Ce^(3+)and vanadate would change the crystal structure of LDHs.The results of the potentiodynamic polarization,electrochemical impedance spectra,hydrogen evolution and corrosion weight loss tests showed the Ce^(3+)and vanadate anions significantly improve the impedance of LDH film,and the active double-doped LDH film could effectively protect the magnesium substrate from corrosion. | Liang Wu Xingxing Ding Zhicheng Zheng Aitao Tang Gen Zhang Andrej Atrens Fusheng Pan | 2021 | Journal of Materials Science & Technology2021，，5： | 7 |
| 10 | Evaluation of self-healing ability of Ce-V conversion coating on AZ31 magnesium alloy显示文摘This study investigated the influence of cerium nitrate in vanadate solutions on the properties of Ce–V conversion coatings on AZ31 magnesium alloys,and evaluated the self-healing behavior of the Ce–V conversion coating for AZ31 magnesium alloy.The results showed that the additions of cerium nitrate prevented pentavalent vanadium from reducing to tetravalent vanadium in the coatings during conversion reaction process.Adding appropriate cerium nitrate to vanadate solution led to a thicker coating with a more compact CeVO_(4) layer.The corrosion behavior of the Ce–V conversion coating was investigated by the electrochemical tests and the scratch immersion test in 3.5 wt.%NaCl solution.The self-healing ability of the coating was confirmed from all tests.The surface analysis revealed that the self-healing effect of the Ce–V conversion coating was only provided by the release and migration of vanadium compounds. | Xiao Jiang Ruiguang Guo Shuqin Jiang | 2016 | Journal of Magnesium and Alloys2016，4，3： | 6 |
| 11 | Effect of zinc and cerium addition on property of copper-based adsorbents for phosphine adsorption显示文摘A series of copper-based activated carbon (AC) adsorbents were prepared in order to investigate the effect of Zn, Ce addition on Cu-based AC adsorbent for phosphine (PH3) adsorption removal from yellow phosphorous tail gas. N2 adsorption isotherm and X-ray diffrac-tion (XRD) results suggested that the addition of Zn could increase the adsorbent ultramicropores, decrease the adsorbent supermicropores and the adsorbent average pore diameter. Therefore it enhanced the PH3 adsorption capacity. Appropriate amount of Ce addition could promote the reducibility of copper oxide, increase the thermal stability of adsorbent, and therefore enhance the PH3 adsorption capacity. It could be concluded that copper, zinc, and cerium exhibited a strong synergistic effect on the Cu-based AC adsorbents, which enhanced significantly the adsorption capacity of activated carbon. The present study indicated that the Cu-based adsorbents might be one of candidates for PH3 removal from yellow phosphorous tail gas. | 宁平 易红宏 余琼粉 唐晓龙 杨丽萍 叶智青 | 2010 | Journal of Rare Earths2010，28，4： | 5 |
| 12 | Addition of cerium and yttrium to ferritic steel weld metal to improve hydrogen trapping efficiency显示文摘The applicability of Ce and Y as promising candidate elements to form irreversible traps in weld metal was investigated by thermal desorption spectroscopy(TDS) with gas chromatography(GC). The precise nature of the precipitate particles newly formed in the weld metal by the addition of Ce and Y to a certain alloy system was characterized. Moreover,the hydrogen trapping efficiency expressed as the reduction of the diffusible hydrogen in the weld metal was analyzed. The results showed that the addition of Ce and/or Y to this alloy system led to the formation of a mixed type of(Ce,Ti)-based oxide,(Y,Ni)-based carbide,or(Ce,Y,Ti)-based oxide particles. Because of the high activation energy of the mixed type of particles(≥ 150 k J/mol),the trapping efficiency for hydrogen was considered to be sufficiently high to effectively reduce the diffusible hydrogen content. | Sung Jin Kim Kang Mook Ryu Min-suk Oh | 2017 | International Journal of Minerals,Metallurgy and Materials2017，24，4： | 5 |
| 13 | The PL 'violet shift' of cerium dioxide on silicon显示文摘CeO2 thin film was fabricated by dual ion beam epitaxial technique. The phenomenon of PL violet shift at room temperature was observed, and the distance of shift was about 65 nm. After the analysis of crystal structure and valence in the compound were carried out by XRD and XPS technique, it was concluded that the PL shift was related with valence of cerium ion in the oxides. When the valence of cerium ion varied from tetravalence to trivalence, the PL peak position would move from blue region to violet region and the phenomenon of 'violet shift' was observed. | Chai Chunlin Yang Shaoyan Liu Zhikai Liao Meiyong Chen Nuofu Wang Zhanguo | 2001 | Chinese Science Bulletin2001，46，24： | 5 |
| 14 | Reinforcement of natural rubber latex with silica modified by cerium oxide:preparation and properties显示文摘Variable masses of nano cerium oxide(CeO__2) were added into nano silica(SiO__2) to prepare the well-dispersed SiO_2-CeO_2suspension(SiO_2-CeO_2), cetyltrimethyl ammonium bromide(CTAB) was used to adjust the compatibility of SiO_2-CeO_2 with rubber matrix, then SiO_2-CeO_2 modified by CTAB and curing formulas were mixed with fresh natural rubber(NR) latex to prepare NR/SiO_2-CeO_2 nanocomposites that contained 0–10 parts of CeO_2 by a new emulsion compounding method. The morphologies, cure characteristics, mechanical properties and thermal-oxidative stability of NR/SiO_2-CeO_2 nanocomposites were investigated. The results revealed that the presence of CeO_2 in NR/SiO_2-CeO_2 nanocomposites was favorable for enhancing the interaction between NR matrix and fillers, helped to get smaller SiO_2-CeO_2 particles with narrower particle size distribution, further improved the crosslink densities and mechanical properties of NR/SiO_2-CeO_2 nanocomposites vulcanizates. Meanwhile, the addition of CeO_2 increased the active energy at least 4.66%, obviously improved the thermal-oxidative aging-inhibiting properties of NR/SiO_2-CeO_2 nanocomposites. Additionally, nanocomposites containing CeO_2 promoted T g shift to high temperature direction, causing the nanocomposites featured higher tanδ at 0 oC and lower tanδ at 60 oC and exhibited comparable wet grip and lower rolling resistance when NR/SiO_2-CeO_2 nanocomposites were used in tire tread compound. | 张福全 廖禄生 王永周 汪月琼 黄红海 李普旺 彭政 曾日中 | 2016 | Journal of Rare Earths2016，34，2： | 5 |
| 15 | A comparative study of hydrothermal aging effect on cerium and lanthanum doped Cu/SSZ-13 catalysts for NH_(3)-SCR显示文摘Ce-or La-doped Cu/SSZ-13 catalysts were prepared by a hydrothermal method and Cu,Ce or La ions were incorporated through stepwise ion exchange,The catalyst activity was measured for the ammonia selective catalytic reduction reaction.The structure and composition of catalyst were characterized by using X-ray diffraction,scanning electron microscopy,inductively coupled plasma mass spectrometry solid-state NMR,NH_(3)-TPD techniques,and the active components were examined by XPS and XANES.The results indicate that the Ce and La doping can both completely preserve the SCR activity of Cu/SSZ-13 above 300℃,but there is also a decrease of activity below 200℃.On the other hand,Ce doping is beneficial to the formation of framework aluminum,stabilizes molecular sieve framework and Cu active sites of Cu/SSZ-13,thereby improves the catalyst hydrothermal stability.But La doping will decrease the amount of framework aluminum and Cu active sites of Cu/SSZ-13 after hydrothermally aging,even destroy zeolite CHA structure.This is quite harmful to the catalyst hydrothermal stability. | Di Deng Shujun Deng Dandan He Zhiheng Wang Zhipeng Chen Yi Ji Guoping Yan Guangjin Hou Licheng Liu Hong He | 2021 | Journal of Rare Earths2021，39，8： | 5 |
| 16 | N-doped graphene and TiO_2 supported manganese and cerium oxides on low-temperature selective catalytic reduction of NO_x with NH_3显示文摘A series of N-doped graphene(NG)and TiO_2 supported MnO_x–CeO_2 catalysts were prepared prepared by a hydrothermal method.The catalysts with different molar ratios of Mn/Ce(6:1,10:1,15:1)were investigated for the low-temperature selective catalytic reduction(SCR)of NO_x with NH_3.The synthesized catalysts were characterized by HRTEM,SEM,XRD,BET,XPS,and NH_3-TPD technologies.The characterization results indicated that manganese and cerium oxide particles dispersed on the surface of the TiO_2–NG support uniformly,and that manganese and cerium oxides existed in different valences on the surface of the TiO_2–NG support.At Mn element loading of 8 wt%,MnO_x–CeO_2(10:1)/TiO_2–1%NG displayed superior activity and improved SO_(2 )resistance.On the basis of the catalyst characterization,excellent catalytic performance and SO_2 tolerance at low temperature were attributed to the high content of manganese with high oxidation valence,extensive oxidation of NO into NO_2 by CeO_2 and strong NO adsorption capacity,and electron transfer of N-doped graphene. | Chunlin ZHAO Yanxia WU Hailong LIANG Xi CHEN Jie TANG Xianzhong WANG | 2018 | Journal of Advanced Ceramics2018，7，3： | 5 |
| 17 | Effect of Ce addition on microstructures and mechanical properties of A380 aluminum alloy prepared by squeeze-casting显示文摘The effect of cerium(Ce)addition on the eutectic Si,β-Al_5Fe Si phase,and the tensile properties of A380 alloy specimens prepared by squeeze-casting were studied by optical microscopy(OM),scanning electron microscopy(SEM),and X-ray diffraction(XRD).The experimental results showed that Ce more effectively modified the eutectic Si and refined theβ-Al_5Fe Si.The refinement effect significantly increased under a specific pressure of 100 MPa with the addition of Ce from 0.1wt%to 0.9wt%.In contrast,the average length and the aspect ratio of the eutectic Si andβ-Al_5Fe Si exhibited their optimal values when the content of the added Ce was greater than 0.5wt%.Needle-like Al_8Cu_4Ce was precipitated with the addition of excessive Ce;hence,the mechanical properties of A380 gradually decreased with increasing Ce content in the range from 0.3wt%to 0.9wt%. | Xiao-hui Ao Shu-ming Xing Bai-shui Yu Qing-you Han | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，5： | 4 |
| 18 | Low-Temperature SCR of NO with NH_3 on Mn-Based Catalysts Modified with Cerium显示文摘A series of Mn-based catalysts, MnOx, MnOx-CeO_2, Pd-Mn-Ce, MnOx/AC were prepared. And their performances for NO low-temperature SCR were investigated in this study. The NO conversion is about 90% at 100 ℃ on MnOx-CeO_2 and almost all NO can be converted at 120 ℃. Similar results are also observed in the tests on MnOx-CeO_2/AC. The excellent low-temperature catalytic activity of modified Mn-based catalysts, which may be mainly due to the oxygen storage function of CeO_2, can improve the oxygen flow on the catalysts surface. Then the oxidation of NO to NO2 is accelerated, which is the key step of NO SCR. | 唐晓龙 郝吉明 易红宏 宁平 | 2007 | Journal of Rare Earths2007，25，S1： | 4 |
| 19 | Violet/blue photoluminescence from CeO_2 thin film显示文摘CeO2 thin film was fabricated by dual ion beam epitaxial technique. The violet/blue PL at room temperature and lower temperature was observed from the CeO2 thinfilm. After the analysis of crystal structure and valence in the compound was carried out by the XRD and XPS technique, it was inferred that the origin of CeO2 PL was due to theelectrons transition from Ce4f band to O2p band and thedefect level to O2p band. And these defects levels were lo-cated in the range of 1 eV around Ce4f band. | CHAI Chunlin, YANG Shaoyan, LIU Zhikai, LIAO Meiyong & CHEN Nuofu Key Laboratory of Semiconductor Material Science, Institute of Semi-conductors, Chinese Academy of Sciences, Beijing 100083, China | 2003 | Chinese Science Bulletin2003，48，12： | 4 |
| 20 | Effect of cerium on microstructure,wetting and mechanical properties of Ag-Cu-Ti filler alloy显示文摘Effect of cerium on microstructure,mechanical and wetting properties of Ag-Cu-Ti filler alloy was researched with optical microscopy,scanning electron microscopy and X-ray diffraction.The results indicated that addition of cerium accelerated alloying of the filler alloy,enlarged supercooled region,caused microstructural refinement and dispersed distribution of intermetallic compounds.It resulted in the increase in microhardness and shear strength of Ag-Cu-Ti filler alloy.At the same time,cerium improved wetting property of Ag-Cu-Ti filler alloy on 0.45% C steel substrate.According to experiment results,the content of cerium added in Ag-Cu-Ti filler alloy should be controlled in the range of 0.25 wt.%-0.5 wt.%. | 杨长勇 徐九华 丁文锋 陈珍珍 傅玉灿 | 2009 | Journal of Rare Earths2009，27，6： | 4 |
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