|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 液体燃料醇类重整制氢技术的研究现状分析显示文摘为解决经济发展与资源环境的矛盾,氢能作为清洁、高效、可再生的新能源日益受到关注。液体燃料醇类重整制氢具有原料来源广、转化温度低、能耗低等诸多优点,应用前景广阔。为此总结了近些年液体燃料醇类重整制氢主要方法:包括传统甲醇重整制氢方法及其催化剂研究与发展、等离子体甲醇制氢、新型的液相放电等离子体甲醇及乙醇重整制氢技术。简述了其他甲醇制氢方法包括光化学法制氢、电化学法制氢以及超声波制氢等。对代表性的研究方法进行了详细描述和分析,给出了各种方法的优缺点评述及适用领域,并指出了个别甲醇重整制氢技术的发展方向。 | 孙冰 信延彬 朱小梅 杨雨桐 严志宇 王召伟 | 2019 | 高电压技术2019，45，12： | 9 |
| 2 | 加氢站供氢模式的选择及制氢技术的研究现状分析显示文摘通过对集中式供氢和分布式供氢两种供氢模式的技术进展和成本的分析,说明分布式供氢模式是加氢站氢气来源的首选。对天然气制氢、甲醇制氢和电解水制氢的成本和原料供应情况进行了对比,阐述了甲醇制氢的优势。总结了近年甲醇制氢技术的发展趋势,包括传统甲醇制氢技术以及甲醇制氢的一些新技术,通过相关阐述,为加氢站供氢模式的选择和氢能产业的发展提供参考。 | 马志超 冯浩 闫云东 | 2019 | 广州化工2019，47，16： | 6 |
| 3 | Co-modified Pd/CeO_2-ZrO_2 catalysts for methanol decomposition显示文摘Pd/Ce0.8Zr0.2O2 catalysts modified by cobalt were prepared by a sequential impregnation method and characterized by X-ray powder diffraction(XRD), N2adsorption/desorption(Brunauer-Emmet-Teller), oxygen storage capacity(OSC), CO-chemisorption, H2-temperature-programmed reduction(H2-TPR) and X-ray photoelectron spectroscopy(XPS). The effect of Co on the performance of methanol decomposition was evaluated at a fixed-bed microreactor. The results showed that the addition of Co can improve the oxygen storage capacity of the catalyst and the dispersion of Pd. XPS results indicated that Pd was in a partly oxidized(Pdδ+, 1<δ<2) state and Co2+was present in Pd catalysts modified by Co. A 90% conversion of methanol was achieved at around 280°C over Pd-Co/Ce0.8Zr0.2O2 catalyst which was 20°C lower than that over Pd/Ce0.8Zr0.2O2, indicating that both Pdδ+and Co2+play an important role in improving the catalytic activity of methanol decomposition. | Ming Zhao Hailong Zhang Xue Li Yaoqiang Chen | 2014 | Journal of Energy Chemistry2014，23，6： | 3 |
| 4 | Effects of La_2O_3 contents on the Pd/Ce_(0.8)Zr_(0.2)O_2-La_2O_3 catalysts for methanol decomposition显示文摘The catalytic behaviors of Pd (1.4 wt.%) catalysts supported on CeO2-ZrO2 promoted with La2O3 were investigated for methanol decomposition. The measurements of inductively coupled plasma emission spectroscopy (ICP), N2 adsorption-desorption (BET), powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR) and oxygen storage capacity (OSC) were used to characterize the properties of catalysts. The catalysts' activities were tested in a fixed bed continuous flow reactor operating under atmospheric pressure. The Pd/Ce0.8Zr0.2O2-5 wt.%La2O3 catalyst exhibited the best activity. The reasons for this were twofold: (1) doping of La improved effectively textural properties of CeO2-ZrO2 oxygen storage materials, and (2) Pd/Ce0.8Zr0.2O2-5 wt.%La2O3 possessed super oxygen storage property and reducibility due to the existence of lattice defect oxygen or mobile oxygen, which helped to re-oxidize zerovalent Pd0 to a partly oxidized Pdδ+. By introducing 5 wt.%La2O3, the specific surface area of the sample increased, but declined if further increasing the content of La2O3 to 10 wt.%. | 李雪 张利华 张超 赵明 龚茂初 陈耀强 | 2011 | Journal of Rare Earths2011，29，6： | 2 |
| 5 | 表面活性剂在共沉淀法制备Ce_(0.27)Zr_(0.18)Y_(0.025)La_(0.025)Al_(0.5)O_x中的成孔作用显示文摘以十六烷基三甲基溴化铵(CTAB)和聚乙二醇(PEG)作为表面活性剂,采用共沉淀法制备了Ce0.27Zr0.18Y0.025La0.025Al0.5Ox(CZYLA)材料,详细考察了表面活性剂的种类和添加方式对材料成孔的影响,并推测了成孔机理。采用X射线衍射(XRD),比表面(BET)测定,热重-差热分析(TG-DTA),透射电子显微镜(TEM)对材料进行了表征。结果表明:表面活性剂的添加没有改变材料的物相,均形成立方相铈锆固溶体,经1 000℃高温焙烧后无相分离;采用CTAB和PEG合成的材料经600℃焙烧后分别形成直径为6.6 nm的柱状孔和5.0 nm的狭缝孔;同时表面活性剂可以使部分晶粒由球状变成纤维状,经1 000℃高温老化5 h后采用CTAB制备的材料仍然保持了部分纤维状晶粒,从而维持了部分直径2~5 nm的孔,比表面积可达38.5 m2/g;在沉淀过程中加入表面活性剂对材料的孔结构起决定性作用。 | 刘建英 赵明 徐成华 张雪乔 谭显东 龚茂初 陈耀强 | 2012 | 四川大学学报(工程科学版)2012，44，3： | 1 |
| 6 | 满足欧五法规THC排放的摩托车三效催化器开发(2)显示文摘(上接2019年第10期)3.4催化器入口温度对THC排放的影响通过向近发动机方向前移催化器在消声器中的位置,将催化器的入口温度从基准温度(Base)平均提高了约200℃,考察了催化器入口温度对降低THC排放的影响。 | 童硕 刘兴奇 佘浩 万超 李秀 李亚荣 | 2019 | 摩托车技术2019，0，11： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员