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42篇 您的检索式:作者名="Noritatsu"
    题名 作者 年代 出处 被引量
1低温甲醇合成研究进展显示文摘日本学者Tsubaki等开创了一种全新的低温甲醇合成反应路径。该路径以含有二氧化碳的合成气为反应原料,使用单一低碳醇(包括甲醇)同时作为催化剂和溶剂,实现了反应原料一氧化碳在低温(443 K)条件下,一步转化率达到70%~100%。原位红外和多种表征手段证明,该反应能够在低温条件下进行,是由于催化剂上吸附的甲酸盐物种可以和多种低碳醇溶剂在低温条件发生酯化反应,生成相对应的甲酸酯。而生成的甲酸酯很容易在低温条件下,铜基催化剂表面,发生加氢反应,生成甲醇和相应的溶剂醇。该种全新的甲醇合成路径克服了常规甲醇合成过程中,甲酸盐必须在高温条件下才能发生加氢反应的关键步骤。同时,还介绍了适用于低温甲醇合成反应的金属Cu/ZnO催化剂制备方法的研究进展。全新的溶胶-凝胶-燃烧法、固相研磨-燃烧法以及甲酸辅助燃烧法直接制备高活性、纳米尺度、高分散的金属Cu/ZnO催化剂,而不需要额外的还原流程。石磊 张婉莹 王玉鑫 Tsubaki Noritatsu 2015化工学报2015,66,9:9
2不同改性组分对Cu-ZnO基催化剂低温甲醇合成性能的影响显示文摘通过共沉淀法制备了Al、Zr和Ce改性的Cu-ZnO基低温甲醇合成催化剂,采用氮气物理吸附、H2-TPR、CO2-TPD、N2O滴定、XRD和TEM等技术对其进行了表征,并考察了改性组分和煅烧温度对其在170℃下合成气制甲醇催化性能的影响。结果表明,经Zr改性的Cu-ZnO基催化剂,其低温甲醇合成性能较好;随着煅烧温度的降低,Cu在催化剂表面的分散度逐渐变大、颗粒逐渐变小,所得到的催化剂其活性也较高;其中,未经煅烧的Cu-ZnO/ZrO2催化剂的活性最佳,其甲醇时空产率为106.02 g/(kg·h),选择性达87.04%。汤小波 NORITATSU Tsubaki 解红娟 韩怡卓 谭猗生 2014燃料化学学报2014,42,6:9
3Catalytic Oxidation of Dimethyl Ether to Dimethoxymethane over Cs Modified H_3PW_(12)O_(40)/SiO_2 Catalysts显示文摘为一步舞的吸引人的利用线路到 dimethoxymethane 的暗淡乙醇醚的催化氧化成功地在 H3PW12O40 (40%)/SiO2 催化剂上被执行,由 C, K, Ni,和 V 修改了。H3PW12O40 (40%)/SiO2 的 C 修正给了 20% 暗淡乙醇醚变换和 34.8% dimethoxymethane 选择的最有希望的结果。Dimethoxymethane 能经由通过在酸地点之间的 synergistic 效果从暗淡乙醇醚分解的 methoxy 组被综合, C 的氧化还原作用地点修改了 H3PW12O40 (40%)/SiO2。Qingde Zhang Yisheng Tan Caihong Yang Yizhuo Han Jun Shamoto Noritatsu Tsubaki 2007Journal of Natural Gas Chemistry2007,16,3:7
4掺杂Nb、B等元素对MoVTe催化剂一步催化氧化丙烯制丙烯酸的影响显示文摘采用共沉淀法制备MoVTe复合氧化物系列催化剂,研究其一步氧化丙烯制备丙烯酸的催化性能,并采用XRD、ICP、EDS、H2-TPR、NH3-TPD对催化剂的结构、表面进行表征.结果表明,加入适量的Nb显著提高MoVTe复合氧化物对丙烯酸的选择性,可从34.1%提高至83.5%;同时丙烯酸的收率从24.7%提高到48.8%.适量Nb存在可以稳定催化剂表面Te元素,从而提高了丙烯酸的选择性;B、Fe、Ce、W元素掺杂对催化剂催化性能产生不同的影响,B掺杂提高了催化剂的催化性能,加入酸性元素硼可增加MoVTeNb复合氧化物催化剂表面丙烯活化位点(Te4+=O·Te3+─O·)的数目,使得丙烯转化率和丙烯酸收率显著提高,分别高达89.8%和64.8%.李双明 邵慧 徐雷雷 陈灿 马婧舒 刘茜 伞小广 李文秀 Noritatsu TSUBAKI 于三三 2014分子催化2014,28,2:7
5Synthesis and Characterization of Condensed Polynuclear Aromatic Resin Derived from Ethylene Tar显示文摘As a kind of low-cost and readily available industrial byproduct, ethylene tar (ET) was for the first time utilized for the preparation of heat-resistant condensed polynuclear aromatic resin (COPNAR). The basic properties of ET and the resulted COPNAR were characterized by FT-IR, 1H-NMR, TGA and elemental analysis. The test results showed that ET with high aromatic content (>50%) was suitable for the synthesis of COPNAR with superior heat resistance. The average molecular structure of ET was obtained by means of the improved Brown-Ladner method, and the reaction mechanism was considered as an acid-catalyzed positive ion-typed polymerization. Our findings have provided a new route to develop ET into technology-added heat-resistant resins.Wu Mingbo Shi Yangyang Li Shibin Wang Yuwei Tan Minghui Wang Ding Zheng Jingtang Tsubaki Noritatsu 2012China Petroleum Processing & Petrochemical Technology2012,14,4:7
6ZnCr基催化剂煅烧温度对异丁醇合成性能的影响显示文摘研究了煅烧温度对ZnCr基催化剂合成异丁醇性能的影响。结果表明,随着煅烧温度的升高,催化剂的活性和产物分布都发生了较大的变化。催化剂在较低的温度下煅烧,液相产物中醇主要是甲醇和异丁醇;在较高的温度下煅烧,液相产物醇的分布符合A-S-F方程。用BET、XRD、H2-TPR、XPS等技术手段对催化剂织构参数、体相结构、还原性能、表面组成进行表征。结果表明,在300℃煅烧时,催化剂中的ZnO和Cr2O3未完全形成非计量尖晶石ZnxCr2/3(1-x)O;400℃煅烧时,催化剂中形成了最多量非计量尖晶石ZnxCr2/3(1-x)O;当煅烧温度高于400℃时,随着煅烧温度进一步升高,非计量尖晶石ZnxCr2/3(1-x)O逐步发生了分解,生成了更多量的ZnO和Cr2O3,导致催化剂的活性随之下降。进一步证明了非计量尖晶石ZnxCr2/3(1-x)O是该催化反应活性相。寇永利 解红娟 刘广波 武应全 张欣悦 韩怡卓 Noritatsu Tsubaki 谭猗生 2013燃料化学学报2013,41,6:5
7Al_2O_3改性Co/SiO_2费托合成催化剂的制备及结构表征显示文摘采用溶液浸渍法制备不同含量Al2O3的Co/SiO2-Al2O3催化剂。采用程序升温还原(TPR)、X射线衍射(XRD)、物理吸附(BET)以及原位CO吸附红外光谱(DRIFT)对催化剂进行表征。结果表明:Al2O3的添加导致催化剂比表面积稍有下降,但对孔径分布无明显影响;随着Al2O3负载量的增加,载体表面钴粒子粒径变小,分散度提高,同时还原度逐步降低;Al2O3改性后催化剂表面CO吸附峰位发生蓝移,并且桥式CO吸附峰强度明显增大,说明Al2O3改性后钴催化剂具有更高的表面活性。孙晓瑜 张燚 鲍骏 TSUBAKI Noritatsu 2009中国石油大学学报(自然科学版)2009,33,5:5
8低温甲醇合成工业试验装置运行分析显示文摘依托建成的低温甲醇合成工业试验装置,采用控制变量法分析了反应温度、反应压力、合成气氢碳比等因素对低温甲醇合成的影响,并对其经济性进行分析。结果表明:在170℃、反应压力6.0 MPa、合成气流速1.5 L·min^(-1)、氢合成气氢碳比4.4左右的条件,CO单程转化率达到97.5%,甲醇选择性达到99.78%。通过与传统甲醇合成工艺对比,低温甲醇合成成本可降低106元。宋晓玲 李进 冯俊 石磊 Tsubaki Noritatsu 2021辽宁化工2021,50,4:3
9Sputtered nano-cobalt on H-USY zeolite for selectively converting syngas to gasoline显示文摘Selectively converting CO and H2 to gasoline product(isoparaffin and olefin) in one step still remains a great challenge. We demonstrate effective H-USY zeolite supported nano-cobalt bifunctional catalysts for this catalytic reaction, which are prepared by the novel physical sputtering process. Particles of the sputtered cobalt exist in nano-level and are well-dispersed on acid USY zeolite. Easy activation of the loaded nano-cobalt is also achieved in a low-temperature hydrogen reduction atmosphere. In the tandem catalytic reaction, the sputtered bifunctional Co/USY catalyst exhibits a much higher CO conversion and higher isoparaffin selectivity than the conventional impregnated one. Compared with H-Mor, H-Beta and other zeolites supported catalysts, H-USY zeolite supported cobalt catalyst shows the clearest promotional effect on the activity of FischerTropsch synthesis. The described synthesis herein provides a new pathway to solve the problem caused by the strong metal-support interaction(MSI) in heterogeneous catalysis.Peng Lu Jian Sun Pengfei Zhu Takayuki Abe Ruiqin Yang Akira Taguchi Tharapong Vitidsant Noritatsu Tsubaki 2015Journal of Energy Chemistry2015,24,5:2
10Simulta neous introduction of chemical and spatial effects via a new bimodal catalyst support preparation method显示文摘Zhang Yi Yoneyama Yoshiharu Tsubaki Noritatsu 2002Chem Commun2002,11,:1
11Foveal Photoreceptor Layer in Eyes with Persistent Cystoid Macular Edema Associated with Branch Retinal Vein Occlusion显示文摘Masafumi Ota Akitaka Tsujikawa Tomoaki Murakami Noritatsu Yamaike Atsushi Sakamoto Yuriko Kotera Kazuaki Miyamoto Mihori Kita Nagahisa Yoshimura 2008American Journal of Ophthalmology2008,,2:1
12Preparation of Alumina-silica Bimodal Pore Catalysts for Fischer-Tropsch Synthesis 显示文摘Zhang Yi Masahiko K Noritatsu T 2005Catalysis Letters2005,91,34:1
13Surface impregnation combustion method to prepare nanostructured metallic catalysts without further reduction: as-burnt Cu-ZnO/Si02 catalyst for low-temperature methanol synthesis显示文摘Shi L Yang R Q Tao K Yoshiharu Yoneyama Tan Y S Tsubaki Noritatsu 2012Catalysis Today2012,185,:1
14Formic acid directly assisted solid-state synthesis of metallic catalysts without further reduction: as-prepared CulZnO catalysts for low-temperature methanol synthesis显示文摘Shi L Shen W Z Yang G H Fan X J Jin Y Z Zeng C Y Kenji Matsuda Tsubaki Noritatsu 2013Journal of Catalysis2013,302,:1
15Performance of K-promoted hydrotalcite-derived CoMgAIO catalysts used for soot combustion, NOx storage and simultaneous soot- NOx removal 显示文摘Li Qian Meng Ming Noritatsu Tsubaki 2009Applied Catalysis B : Environmental2009,91,:1
16Preparation of aluminasilica bimodal pore catalysts for fischer-tropsch synthesis 显示文摘Zhang Y Masahiko K Noritatsu T 2005Catal Lett2005,99,34:1
17Different functions of the noble metals added to cobalt catalysts for fischer-tropsch systhesis显示文摘Tsubaki Noritatsu Sun Shouli Fujimoto Kaoru 2001Journal of Catalysis2001,199,:1
18Tuning the crystallite size of monoclinic ZrO_(2) to reveal critical roles of surface defects on m–ZrO_(2) catalyst for direct synthesis of isobutene from syngas显示文摘The effects of crystallite size on the physicochemical properties and surface defects of pure monoclinic ZrO_(2) catalysts for isobutene synthesis were studied.We prepared a series of monoclinic ZrO_(2) catalysts with different crystallite size by changing calcination temperature and evaluated their catalytic performance for isobutene synthesis from syngas.ZrO_(2) with small crystalline size showed higher CO conversion and isobutene selectivity,while samples with large crystalline size preferred to form dimethyl ether(DME)instead of hydrocarbons,much less to isobutene.Oxygen defects(ODefects)analyzed by X-ray photoelectron spectroscopy(XPS)provided evidence that more ODefectsoccupied on the surface of ZrO_(2) catalysts with smaller crystalline size.Electron paramagnetic resonance(EPR)and ultraviolet–visible diffuse reflectance(UV–vis DRS)confirmed the presence of high concentration of surface defects and Zr3+on mZrO_(2)-5.9 sample,respectively.In situ diffuse reflectance infrared Fourier transform spectroscopy(in situ DRIFTS)analysis indicated that the adsorption strength of formed formate species on catalyst reduced as the crystalline size decreased.These results suggested that surface defects were responsible for CO activation and further influenced the adsorption strength of surface species,and thus the products distribution changed.This study provides an in-depth insight for active sites regulation of ZrO_(2) catalyst in CO hydrogenation reaction.Xuemei Wu Minghui Tan Bing Xu Shengying Zhao Qingxiang Ma Yingluo He Chunyang Zeng Guohui Yang Noritatsu Tsubaki Yisheng Tan 2021Chinese Journal of Chemical Engineering2021,34,7:1
19显示文摘 Kaoru F 2003Topics Catal2003,,22:1
20Direct synthesis of propylene and light olefins from dimethyl ether catalyzed by modified H-ZSM-5显示文摘Zhao Tiansheng Tomokazu Takemoto Noritatsu Tsubaki 2006Catalysis Communications2006,7,:1
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