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| 1 | Mo_2C含量对Ti(C,N)基陶瓷力学性能和显微结构的影响显示文摘采用热压烧结工艺制备了添加微量Cr3C2 的Ti(C0 5N0 5) (Ni Co) Mo2 C -Cr3C2 系Ti(C ,N)基金属陶瓷。分析三种不同Mo2 C含量材料的力学性能、断口形貌和磨削表面压痕裂纹扩展情况 ,研究表明 :材料的断裂均以沿晶断裂为主 ;材料的抗弯强度与Rim相有关 ,8wt%Mo2 C含量的金属陶瓷Rim相厚度适中 ,抗弯强度高 ;1 6wt%Mo2 C含量的金属陶瓷的扩展裂纹短 ,裂纹扩展发生偏转 。 | 何林 黄传真 黄勤 宋世学 王随莲 艾兴 | 2003 | 材料科学与工程学报2003，21，2： | 10 |
| 2 | Mo_2C对Ti(C,N)基金属陶瓷腐蚀性能的影响显示文摘通过静态浸泡腐蚀和动电位极化两种方法,研究了Mo2C对Ti(C,N)基金属陶瓷在NaOH溶液中腐蚀性能的影响。实验结果表明:Ti(C,N)基金属陶瓷的耐蚀性明显优于WC-Co硬质合金;添加Mo2C可以大幅度提高Ti(C,N)基金属陶瓷的机械性能,硬度从91.2到94.0 HRA和抗弯强度从930到1 350 MPa,但会降低金属陶瓷的耐蚀性能;由于Mo2C的加入,会使金属陶瓷的动电位极化曲线出现两个钝化区,但是两个钝化区域的电流均未达到真正的钝化电流(10-5A/cm2),因而这些钝化现象均为伪钝化;在经动电位极化后的试样表面,粘结相Ni和白色的内环相均会被腐蚀,其中内环相为富Mo的(Mo,Ti)(C,N)固溶体,其耐腐蚀性较未溶的Ti(C,N)芯更差。随着Mo2C添加量的提高,内环形相的厚度随之会增加,从而降低了Ti(C,N)基金属陶瓷的耐蚀性能。 | 董广彪 熊计 郭智兴 万维财 易成红 | 2012 | 硬质合金2012，29，3： | 9 |
| 3 | 钼及其化合物的最新用途显示文摘给出了钼及其化合物的4种新用途。钼的同位素99Mo及其衰变后的'孪生'元素99mTc在癌症的诊断等医疗诊断流程中显示出极其重要的作用。Mo S2作为新一代半导体材料使半导体芯片厚度降低2/3,储用功率可降低10万倍,极大地促进集成电路的微型化和异型化。Mo2C和Mo2N作为催化物的基底材料,可有效提高催化物的比表面积,Mo2C和Mo2N基催化剂在制氢和制烃的反应中具有强烈的催化作用。Mo-Mo2C等离子喷涂技术在活塞环表面形成具有一定韧性的致密涂层,远优于钼金属火焰喷涂效果,涂层使用寿命可达到150 000 km。 | 冯鹏发 党晓明 胡林 赵虎 王娜 张常乐 陈二雷 | 2015 | 中国钼业2015，39，1： | 9 |
| 4 | 金属(Fe,Co,Ni,Cu)掺杂的Mo2C催化剂在TiO2表面用于中性条件光催化分解水产氢显示文摘中性条件下的分解水产氢(HER)是化工领域的重要反应之一,其效率取决于催化剂的内在特性.在本工作中,我们利用3d金属(Fe,Co,Ni,Cu)对Mo2C进行掺杂来调节其费米能级,从而达到催化剂可在中性条件下吸附水并提高最终活性的目的.首先,利用简单浸渍法将四种金属的前驱体吸附到MoO3表面,然后通过煅烧一步合成金属掺杂的Mo2C.产物Mo2C的XRD峰位移以及XPS表征结果表明,四种金属通过掺杂进入到了Mo2C晶格.利用HRTEM以及相应的元素面扫分析,也证明金属确实掺杂进入了Mo2C体相.考察了Mo2C基催化剂在中性条件下电解水产氢的性能,结果表明,在10 mA/cm2条件下,Cu-Mo2C催化剂表现出最优的HER性能,其次,是Ni-Mo2C,Co-Mo2C,Fe-Mo2C和纯Mo2C,它们的过电位分别为78,90,95,100和173 mV,Tafel斜率分别是40,43,42,56和102 mV/dec.利用阻抗测试详细分析了催化剂-反应液界面电阻Rct的变化情况,样品Mo2C,Fe-Mo2C,Co-Mo2C,Ni-Mo2C和Cu-Mo2C拟合后的Rct值分别为119,89.6,46.5,33.8和23.2 ohm/cm^2,表明金属掺杂能明显降低催化剂的反应界面电阻.由于电催化过程的主要研究对象是表面双电层,所以我们利用循环伏安法计算了催化剂表面双电层的数值,得到上述五个样品的Cdl数值分别为0.047,0.06,0.1,0.16和0.24 F/cm^2,双电层的提高为催化剂表面提供了更多的反应位点.考虑了到光解水的界面反应实质也是电催化过程,我们通过浸渍方法将催化剂负载到锐钛矿TiO2表面,考察调控的功函数对光催化效率的影响.XPS表征验证了M-Mo2C负载于TiO2表面.负载助催化剂的TiO2-M-Mo2C样品均表现出了优于纯TiO2的光解水产氢性能.样品TiO2-Cu-Mo2C,TiO2-Ni-Mo2C,TiO2-Co-Mo2C,TiO2-Fe-Mo2C,TiO2-Mo2C和纯TiO2的产氢速率分别为21,404,275,224,147和112μmol/h.利用瞬态荧光研究了载流子在助催化剂和TiO2两相的界面迁移,通过单指数拟合得到样品TiO2,TiO2-Mo2C,TiO2-Fe-Mo2C,TiO2-Co-Mo2C,TiO2-Ni-Mo2C,TiO2-Cu-Mo2C和TiO2-Pt的荧光寿命分别是22.6,20.5,10.1,4.7,4.0,2.5和1.9 ns,说明不同金属掺杂的Mo2C对提取光生电子的效果不同,元素Cu最有效.进一步利用瞬态吸收光谱研究了TiO2-Mo2C,TiO2-Cu-Mo2C和TiO2-Pt三个样品的载流子迁移,同样采用单指数拟合得到的荧光寿命分别为105,73和31 ps,进一步说明掺杂Cu后助催化剂Mo2C对于提取TiO2的光生电子寿命具有很好的促进作用.利用UPS技术探究了金属掺杂后Mo2C的缺陷能级位置,从计算结果可以看出,元素Cu掺杂后Mo2C具有更深的缺陷能级,该能级对吸附水具有促进作用.利用原位红外光谱对样品进行了水蒸气吸附测试,结果表明,Mo2C,Fe-Mo2C,Co-Mo2C,Ni-Mo2C和Cu-Mo2C样品依次的吸附水性能提升.综上,我们利用3d金属对助催化剂进行了缺陷调控来调变其对水的起始吸附过电位,该工作对设计性能优异的光解水助催化剂具有一定的借鉴意义. | 刘晶 盖瑞侯得 闫俊青 刘生忠 | 2021 | Chinese Journal of Catalysis2021，42，1： | 9 |
| 5 | WC和Mo_2C的添加对Ti(C,N)基金属陶瓷高温显微硬度的影响显示文摘基于WC与Mo_2C对Ti(C,N)基金属陶瓷的组织优化和润湿性改善等方面具有相似的作用,研究了WC和Mo_2C的添加对Ti(C,N)基金属陶瓷在高温下显微硬度的影响。结果表明:随着温度的升高,添加WC和Mo_2C后金属陶瓷的高温显微硬度均呈下降趋势,在600~800℃范围内,添加WC后金属陶瓷的高温显微硬度略高于添加Mo_2C金属陶瓷的,当温度达到900℃时,两者的显微硬度几乎相同;随着温度的升高,两种金属陶瓷的压痕面积、平均压痕深度均逐渐增加;添加WC后金属陶瓷的高温真应变明显小于添加Mo_2C金属陶瓷的,但当温度达到900℃时,两种金属陶瓷的高温变形量接近。 | 吴悦梅 周黎明 熊计 叶俊镠 文斌 | 2017 | 机械工程材料2017，41，7： | 6 |
| 6 | WC和Mo_2C添加对Ti(C,N)基金属陶瓷切削性能的影响显示文摘传统的Ti(C,N)基金属陶瓷刀具材料广泛采用Mo2C来改善粘结相对硬质相的润湿性,近年来Mo的价格不断上涨,寻找低成本金属代替Mo已成为Ti(C,N)基金属陶瓷的发展趋势。为了探讨WC代替Mo2C添加的可行性及其效果,研究了WC和Mo2C添加对Ti(C,N)基金属陶瓷切削性能的影响,采用电子扫描显微镜(SEM)观察刀具的磨损形貌,通过能谱分析(EDS)分析磨损表面的元素分布,并对刀具的主要磨损机理进行分析。实验结果表明,添加WC的金属陶瓷的切削长度和添加Mo2C的相当,将原始WC粉末粒度细化后,不仅切削长度显著增加,切屑也由带状缠乱型变为螺旋型,并且大大减少积屑瘤的形成,有利于切削的进行。切削磨损机理主要为扩散磨损和氧化磨损,伴有轻微的磨粒磨损。 | 吴悦梅 熊计 陈云 郭智兴 范洪远 | 2011 | 四川大学学报(工程科学版)2011，43，4： | 5 |
| 7 | 甲烷无氧芳构化催化剂的活性相生成研究显示文摘利用在线质谱分析检测了在各种催化剂上甲烷的程序升温表面反应 ( TPSR)过程中不同物种的行为 .结果表明 ,Mo O3向 Mo2 C的转变阻碍了甲烷的活化及其芳构化 .如果这个转变过程在 TPSR反应前发生 ,甲烷活化和苯生成的温度将大大降低 (分别为 760 K和 84 7K) .通过比较担载在不同分子筛上钼物种的催化行为发现 ,甲烷的初始活化是这个反应速率的决定步骤 .只有具备合适的钼价态 。 | 马丁 苏玲玲 舒玉瑛 徐奕德 包信和 | 2001 | 高等学校化学学报2001，22，9： | 5 |
| 8 | 钴-钼双金属碳化物修饰隔膜强化锂硫电池中多硫化锂的吸附和催化转化显示文摘本文报道了一种钴-钼双金属碳化物(Co3Mo3C)催化材料用于修饰锂硫电池隔膜,强化多硫化锂的化学吸附和催化转化.所组装的电池表现出优异的电化学性能,即使在8.0 mg cm^-2的硫面积负载量条件下,面积比容量仍高达6.8 mA h cm^-2.理论计算结果表明,相比于单一金属碳化物Mo2C,双金属碳化物Co3Mo3C具有更多的活性位点,更利于化学固定多硫化锂,并催化多硫化锂间相互转化;同时,Ni3Mo3C和Fe3Mo3C亦表现出类似的高催化活性.本研究对高性能锂硫电池关键催化材料的设计具有一定的指导意义. | 张泽 王嘉楠 邵啊虎 熊冬根 刘建伟 劳成琰 郗凯 芦世瑶 江秋 吁霁 李黄龙 杨震宇 R.Vasant Kumar | 2020 | Science China Materials2020，63，12： | 4 |
| 9 | Thermodynamic study and methanothermal temperature-programmed reaction synthesis of molybdenum carbide显示文摘Nanostructured molybdenum carbide(Mo_2C) was successfully prepared from molybdenum trioxide(MoO _3) using methanothermal temperature-programmed reaction. Thermodynamic analysis indicated that in presence of methane, the formation of Mo_2 C from MoO _3 occurs through the path of MoO _3 → MoO _2 → Mo_2 C. The carburized MoO _3 was characterized using X-ray diffraction(XRD), CHNS/O analysis, Brunauer–Emmett–Teller(BET) analysis, and field-emission scanning electron microscopy(FESEM). At final carburization temperatures of 700 and 800°C and at methane contents ranging from 5vol% to 20vol%, Mo_2 C was the only solid product observed in the XRD patterns. The results indicated that the effect of methane content on the formation of the carbide phase is substantial compared with the effect of carburization time. Elemental analysis showed that at a final temperature of 700°C, the carbon content of carburized MoO _3 is very close to the theoretical carbon mass percentage in Mo_2 C. At higher carburization temperatures, excess carbon was deposited onto the surface of Mo_2 C. High-surface-area Mo_2 C was obtained at extremely low heating rates; this high-surface-area material is a potential electrocatalyst. | Parham Roohi Reza Alizadeh Esmaeil Fatehifar | 2016 | International Journal of Minerals,Metallurgy and Materials2016，23，3： | 4 |
| 10 | Effect of Mo_2C on electrochemical corrosion behavior of Ti(C,N)-based cermets显示文摘The electrochemical corrosion behavior of Ti(C,N)-based cermets with different Mo2C additions was investigated in freely aerated 10% H2SO4 and potentiodynamic polarization of all the materials was conducted from -0.5 to 1.5 V. There are two passive regions for all polarization curves. The first should be attributed to passive film formation due to Ti(C,N), while the second may be due to the presence of Ni. Corrosion current density increases with Mo2C content increasing, from 2.06×10-3 to 6.70×10-3 mA/cm2 . It is indicated that the corrosion resistance of Ti(C,N)-based cermets decreases with the increase of Mo2C addition. A skeleton of Ti(C,N) gains is observed after dissolution of Ni. The inner rim of cermets, rich in Mo2C, is corroded along with Ni binder and is more serious with the increase of Mo2C content. The secondary carbide Mo2C can be oxidized and dissolved in sulphuric acid. | 董广彪 熊计 杨梅 郭智兴 万维财 易成红 | 2013 | Journal of Central South University2013，20，4： | 4 |
| 11 | 不同方法制备的Ni修饰介孔碳负载的β-Mo_2C催化CO加氢反应制备混合醇显示文摘通过浸渍法和碳热还原法制备了以K2CO3为助剂、以Ni修饰介孔碳为载体的碳化钼(β-Mo_2C)催化剂。在合成气原料比n(H2)/n(CO)=1.0、反应压力p=8.0 MPa、合成气气体空速GHSV=3000h-1和反应温度T=300℃的反应条件下,进行了β-Mo_2C催化CO加氢反应制备混合醇的催化反应评价。评价结果表明,镍/介孔碳(Ni/NC)载体的不同制备方法对β-Mo_2C催化合成低碳混合醇催化性能有显著影响。由软模板一步法制备的前驱体OSM-Ni/NC组成的催化剂K-β-Mo_2C-OSM-Ni/NC的总醇选择性(40.0%)高于由软模板浸渍法制备的前驱体IM-Ni/NC组成的催化剂K-β-Mo_2C-IM-Ni/NC的总醇选择性(28.5%),其原因是前者的活性组分分散度高且在孔道内部分布较多,并且前者中存在的Mo0.84Ni0.16相比后者中存在的MoNi4对低碳醇生成的促进作用更强。 | 胡瑞珏 赵娜娜 李佳佳 张幔娣 李建立 苏海全 谷晓俊 | 2018 | 石油学报(石油加工)2018，34，4： | 4 |
| 12 | Decorating carbon nanofibers with Mo_2C nanoparticles towards hierarchically porous and highly catalytic cathode for high-performance Li-O_2 batteries显示文摘A facile synthesis of the hierarchically porous cathode with Mo_2C nanoparticles through the electrospinning technique and heat treatment is proposed.The carbonization temperature of the precursors is the key factor for the formation of Mo_2C nanoparticles on the carbon nanofibers(MCNFs).Compared with the Mo_2N nanoparticles embedded into N-doped carbon nanofibers film(MNNFs)and N-doped carbon nanofibers film(NFs),the battery with MCNFs cathode is capable of operation with a high-capacity(10,509 mAh g^(-1)at 100 mA g^(-1)),a much reduced discharge-charge voltage gap,and a long-term life(124 cycles at 200 mAg^(-1)with a specific capacity limit of 500 mAh g^(-1)).These excellent performances are derived from the synergy of the following advantageous factors:(1)the hierarchically self-standing and binder-free structure of MCNFs could ensure the high diffusion flux of Li^+and O_2as well as avoid clogging of the discharge product,bulk Li_2O_2;(2)the well dispersed Mo_2C nanoparticles not only afford rich active sites,but also facilitate the electronic transfer for catalysis. | Zhen-Dong Yang Zhi-Wen Chang Qi Zhang Keke Huang Xin-Bo Zhang | 2018 | Science Bulletin2018，63，7： | 4 |
| 13 | Facile Synthesis of Mo2C Nanocrystals Embedded in Nanopo- rous Carbon Network for Efficient Hydrogen Evolution显示文摘为综合探索灵巧、容易可伸缩的方法地球丰富、划算、有效的氢进化反应(她的) electrocatalysts 作为一个干净、持续的精力搬运人为氢的大量生产是必要的。我们这里报导简单策略生产瞬间 2 在碳网络嵌入的 C nanocrystals (瞬间 2 C@C ) 由铵 molybdate 和 polyvinylpyrrolidone (PVP ) 的直接热分解。PVP 能有效地被用作单身的来源形成碳化物和碳网络,这被发现。有 PVP 的转变金属的长聚合物链和协调能力使形成连接的多孔的碳网络和分散得好的瞬间 2 在几纳米的 C nanocrystals。PVP 的碳化不仅在原处有效地阻止瞬间 2 C nanocrystals 在他们的形成期间,而且提供传导性的多孔的矩阵。作为结果,瞬间 2 C@C 合成展览为她的优异 electrocatalytic 性能,能从很多的小瞬间 2 | Yuyun Chen Yun Zhang Yuling Ma Tang Tang Zhihui Dai Jinsong Hu Lijun Wan | 2017 | Chinese Journal of Chemistry2017，35，6： | 4 |
| 14 | Hydro-pyrolysis of lignocellulosic biomass over alumina supported Platinum, Mo2C and WC catalysts显示文摘 | Songbo He Jeffrey Boom Rolf van der Gaast K. Seshan | 2018 | Frontiers of Chemical Science and Engineering2018，12，1： | 4 |
| 15 | Calculation and Analysis of Valence Electron Structure of Mo_2C and V_4C_3 in Hot Working Die Steel显示文摘Taking the hot working die steel (HWDS) 4Cr3Mo2NbVNi as an example, the phase electron structures (PES) and the biphase interface electron structures (BIES) of Mo2C and V4C3, which are two kinds of important carbides precipitated during tempering in steel were calculated, on the basis of the empirical electron theory of solids and molecules and the improved TFD theory. The influence of Mo2C and V4C3 on the mechanical properties of HWDS has been analyzed at electron structure level, and the fundamental reason that the characteristic of the PES and the BIES of carbides decides the behavior of them has been revealed. | LIU Yan LIU Zhi-lin ZHANG Cheng-weit | 2006 | Journal of Iron and Steel Research(International)2006，13，1： | 3 |
| 16 | Study on reduction of MoS_2 powders with activated carbon to produce Mo_2C under vacuum conditions显示文摘A method of preparing Mo_2C via vacuum carbothermic reduction of MoS_2 in the temperature range of 1350–1550°C was proposed. The effects of MoS_2-to-C molar ratio(a, a = 1:1, 1:1.5, and 1:2.5) and reaction temperature(1350 to 1550°C) on the reaction were studied in detail. The phase transition, morphological evolution, and residual sulfur content of the products were analyzed by X-ray diffraction, field-emission scanning electron microscopy, and carbon–sulfur analysis, respectively. The results showed that the complete decomposition of MoS_2 under vacuum is difficult, whereas activated carbon can react with MoS_2 under vacuum to generate Mo_2C. Meanwhile, higher temperatures and the addition of more carbon accelerated the rate of carbothermic reduction reaction and further decreased the residual sulfur content. From the experimental results, the optimum molar ratio α was concluded to be 1:1.5. | Guo-hua Zhang He-qiang Chang Lu Wang Kuo-chih Chou | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，4： | 3 |
| 17 | Mo_2C对Ti(C,N)基金属陶瓷冲刷腐蚀性能的影响显示文摘采用传统的粉末冶金烧结工艺制备了4组不同Mo2C含量的Ti(C,N)基金属陶瓷。用洛氏硬度计、金相显微镜和三点弯曲法分别测得试样的硬度、孔隙度及抗弯强度。通过观察发现Ti(C,N)基金属陶瓷的组织呈现典型的芯-环结构,并随Mo2C含量的增加,组织细化明显。对冲刷腐蚀后的试样表面采用SEM、EDS等方式进行研究测试,结果发现Mo2C能提高金属陶瓷的抗冲刷腐蚀性能,但添加过多会降低该性能。 | 廖舟 梁孟霞 董广彪 | 2014 | 热加工工艺2014，43，12： | 2 |
| 18 | Synthesis of α-Mo_2C by Carburization of α-MoO_3 Nanowires and Its Electrocatalytic Activity towards Tri-iodide Reduction for Dye-Sensitized Solar Cells显示文摘Nanowire-shaped α-Mo O3 was synthesized on a large scale by hydrothermal route.Nanocrystalline α-Mo2 C phase was obtained by the carburization of α-Mo O3 nanowires with urea as a carbon source precursor.The phase purity and crystalline size of the synthesized materials were ascertained by using powder X-ray diffraction.The shape and morphology of synthesized materials were characterized by field-emission scanning electron microscopy(FE-SEM) and high resolution transmission electron microscopy(HR-TEM).The electrocatalytic activity of α-Mo2 C for I-/I3-redox couple was investigated by the cyclic voltammetry.The synthesized α-Mo2 C was subsequently applied as counter electrode in dye-sensitized solar cells to replace the expensive platinum. | J.Theerthagiri R.A.Senthil M.H.Buraidah J.Madhavan A.K.Arof | 2016 | Journal of Materials Science & Technology2016，32，12： | 2 |
| 19 | Mo2C/WC对金属陶瓷组织和性能的影响显示文摘以TiC、TiN、Mo2C、WC、Co、Ni为原料,采用粉末冶金法制备Ti(C,N)基金属陶瓷。结合XRD物相检测、显微组织分析以及力学性能测试研究了Mo2C/(WC+Mo2C)对Ti(C,N)基金属陶瓷显微组织和力学性能的影响。结果表明:随着Mo2C/(WC+Mo2C)的增加,Ti(C,N)基金属陶瓷的硬度逐渐增加,抗弯强度先降低后增加。当Mo2C/(WC+Mo2C)=0.8时,Ti(C,N)基金属陶瓷的显微组织细化明显,综合力学性能最佳,维氏硬度(HV)为1 411.15,抗弯强度为1 053.7 MPa。 | 马一川 张雪峰 陈敏 张宁 | 2020 | 钢铁钒钛2020，41，2： | 2 |
| 20 | Mo2C添加量对Ti(C,N)-Ni-Co金属陶瓷组织及其切削性能的影响显示文摘本文制备了不同Mo2C含量的Ti(C,N)-Ni-Co金属陶瓷,对比分析了其微观组织和机械性能以及对304不锈钢切削性能的影响。通过扫描电镜观察分析了微观组织的变化以及切削试验刀具后刀面磨损情况。利用阿基米德排水法、洛氏硬度计、维氏硬度压痕法、三点弯曲法分别测试了金属陶瓷的相对密度、硬度、断裂韧性以及横向断裂强度。结果显示,随着Mo2C含量的增加,金属陶瓷的晶粒度减小,当添加量(质量分数,下同)为18%时出现小晶粒团聚扎堆;硬度和密度增加;断裂韧性和横向断裂强度先增加后减小,在添加量为12%时达到最大值;当添加量为12%时,刀具后刀面磨损量在100 m/min和80 m/min的切削速度下均为最低。 | 陈诚 郭智兴 熊计 肖雅 柴斌斌 华涛 | 2020 | 硬质合金2020，37，2： | 2 |
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