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| 1 | 增产丙烯技术研究进展显示文摘对由石油路线和非石油路线增产丙烯技术所涉及到的工艺过程进行了综述,指出近期丙烯生产仍将以石油路线为主,非石油路线为辅。从反应机理、热力学分析可知,采用择形分子筛催化剂在较低反应温度(400~600℃)下的烃类裂解制丙烯工艺可得到高的丙烯收率,是目前由石油路线增产丙烯的主要发展方向,特别是采用择形分子筛催化剂的多产丙烯流化催化裂化技术和低碳烯烃转化技术相耦合的工艺;而非石油路线中的甲醇/二甲醚转化制丙烯技术与低碳烯烃转化技术相耦合的工艺将是我国增产丙烯的另一重要途径。 | 魏飞 汤效平 周华群 Zeeshan Nawaz | 2008 | 石油化工2008，37，10： | 28 |
| 2 | Functional gastrointestinal disorders and gut-brain axis: What does the future hold?显示文摘Despite their high prevalence, lack of understanding of the exact pathophysiology of the functional gastrointestinal disorders has restricted us to symptomatic diagnostic tools and therapies. Complex mechanisms underlying the disturbances in the bidirectional communication between the gastrointestinal tract and the brain have a vital role in the pathogenesis and are key to our understanding of the disease phenomenon. Although we have come a long way in our understanding of these complex disorders with the help of studies on animals especially rodents, there need to be more studies in humans, especially to identify the therapeutic targets. This review study looks at the anatomical features of the gut-brain axis in order to discuss the different factors and underlying molecular mechanisms that may have a role in the pathogenesis of functional gastrointestinal disorders. These molecules and their receptors can be targeted in future for further studies and possible therapeutic interventions. The article also discusses the potential role of artificial intelligence and machine learning and its possible role in our understanding of these scientifically challenging disorders. | Kashif Mukhtar Hasham Nawaz Shahab Abid | 2019 | World Journal of Gastroenterology2019，25，5： | 15 |
| 3 | 盐岩渗透特性的试验研究及其在深部储气库中的应用显示文摘为给深部盐岩地层(≥1500m)中所建天然气储库的稳定性和密闭性评价提供科学指导,针对取自江苏金坛的不同杂质含量盐岩试样,在荷兰乌德勒支大学HPT实验室开展了在三轴压缩条件下的瞬态法渗透率测试研究,揭示盐岩的变形特征与渗透率演化规律。试验研究表明:在围压20 MPa的常温测试条件下,随着偏应力从0~40MPa递增,损伤后的低含泥盐岩的渗透率从10-16m2逐渐下降至10-21m2以下,而损伤后的高含泥盐岩的渗透率则平均高出前者1~2个量级,推测表明损伤后的盐岩在加载下裂纹闭合、孔隙减小、逐渐压缩密实,进而渗透率快速降低,同时也表明外载压密作用对纯盐岩的裂纹压缩闭合、甚至损伤修复作用更显著。根据试验成果,并利用H.Alkan等[11]建立的盐岩压缩–扩容边界线对位于1500~2000 m深部的盐岩地层中的球形腔体的围岩应力状态分析显示,围岩几乎都位于扩容边界以下的安全区域,由此推知:即使在储气库低压运行条件下,围岩中较难发生扩容而导致密闭性失效事件发生,腔体的密闭性能极好。该研究为深部盐穴储气库的可行性和密闭性评价提供有利支撑。 | 刘伟 MUHAMMAD Nawaz 李银平 SPIERS C J 杨春和 马洪岭 | 2014 | 岩石力学与工程学报2014，33，10： | 14 |
| 4 | In situ Synthesis of SAPO-34 Zeolites in Kaolin Microspheres for a Fluidized Methanol or Dimethyl Ether to Olefins Process显示文摘SAPO-34 zeolite is considered to be an effective catalyst for methanol or dimethyl ether conversion to olefins. In this study,we developed the in situ synthesis technology to prepare SAPO-34 zeolite in kaolin micro-spheres as a catalyst for fluidized methanol or dimethyl ether to olefins process. The silicoaluminophosphate zeolite was first time reported to be synthesized in kaolin microspheres. The SAPO-34 content of synthesized catalyst was about 22% as measured by three different quantitative methods(micropore area,X-ray fluorescence and energy dispersive spectroscopy element analysis) . Most of the SAPO-34 zeolites were in nanoscale size and distributed uniformly inside the spheres. The catalytic performance was evaluated in fixed bed and fluidized bed reactors. Compared with the conventional spray-dry catalyst,SAPO/kaolin catalyst showed superior catalytic activities,bet-ter olefin selectivities(up to 94%,exclusive coke) ,and very good hydrothermal stability. The in situ synthesis of SAPO-34 in kaolin microspheres is a facile and economically feasible way to prepare more effective catalyst for fluidized MTO/DTO(methanol to olefins/dimethyl ether to olefins) process. | ZHU Jie CUI Yu NAWAZ Zeeshan WANG Yao WEI Fei | 2010 | Chinese Journal of Chemical Engineering2010，18，6： | 13 |
| 5 | Wogonin ameliorates lipotoxicity-induced apoptosis of cultured vascular smooth muscle cells via interfering with DAG-PKC pathway显示文摘目的: 在脉管的光滑的肌肉房间(VSMC ) 和内在的机制的导致 lipotoxicity 的 apoptosis 上从黄芩 baicalensis Georgi (S baicalensis ) 提取了调查 wogonin (5,7-dihydroxy-8-methoxyflavone ) 的效果。 | Yu-min LIU Xiong WANG Ahmed NAWAZ Zhao-hong KONG Yan HONG Chang-hua WANG Jun-jian ZHANE | 2011 | Acta Pharmacologica Sinica2011，32，12： | 10 |
| 6 | 云南不同生态区玉米害虫优势种及其天敌优势种的种群动态显示文摘通过对滇东北温凉地区和滇南暖热地区夏玉米田害虫及其天敌种群的系统调查,明确了云南南北两地玉米上的害虫优势种及其天敌优势种的发生动态规律,以期为玉米害虫的预测预报及防治提供理论依据。结果表明,滇东北昭通地区害虫优势种是玉米蚜,发生高峰期为抽雄散粉期和蜡熟期;天敌优势种是异色瓢虫,发生高峰期滞后于玉米蚜。滇南普洱地区玉米抽雄散粉期之前害虫优势种为黄脸油葫芦,发生高峰期为小喇叭口期;抽雄散粉期之后害虫优势种是玉米蚜,发生高峰期为完熟期;天敌优势种是异色瓢虫和黑带食蚜蝇,两种天敌的发生高峰期和玉米蚜吻合。因此,昭通地区防治重点为玉米蚜,防治适期为玉米抽雄散粉期之前。普洱地区防治重点为黄脸油葫芦,可从从苗期开始采取防治措施;玉米蚜的发生时间较晚、为害较轻,可在玉米吐丝期之后对其进行防治。田间施药的时间应注意避开天敌的发生高峰期。 | 禹田 贾永超 柴正群 吴迪 Nawaz Haider Bashir 马丽 陈国华 李强 | 2018 | 中国植保导刊2018，38，9： | 9 |
| 7 | Crop diversity and pest management in sustainable agriculture显示文摘Large-scale crop monocultures facilitate the proliferation and increasing prevalence of diseases and pest insects.Many studies highlight the impacts of plant diversification upon pathogens,and the population dynamics of insects and beneficial organism in agricultural ecosystems.These studies provide evidence that habitat manipulation techniques such as intercropping,relay,and rotation can significantly improve disease and pest management.This review introduces the concept of crop diversity,considers recent insights and mechanisms underlying crop diversity,and discusses its potential for improving sustainable agricultural practices.Recently,the phytobiomes resulting from increased crop diversity are increasingly recognized for their contribution to disease and pest control.Further,understanding the interactions between pathogens or pests with their host phytobiome may lead to novel options for the prevention of pests.Recent advances in the agricultural systems include:(i)a better understanding of the mechanisms of interactions between crop species and genotypes;(ii)ecological progress including a better understanding of the context-dependency of those interactions;and(iii)the role of microtopographic variation in agricultural systems for priming basal resistance to multiple pests and pathogens by intercropped crops.We also highlight recent progress in China and the potential options for habitat management and design that enhance the ecological role of biodiversity in agroecosystems. | HE Han-ming LIU Li-na Shahzad Munir Nawaz Haider Bashir WANG Yi YANG Jing LI Cheng-yun | 2019 | Journal of Integrative Agriculture2019，18，9： | 8 |
| 8 | Suboptimal Temperature Acclimation Enhances Chilling Tolerance by Improving Photosynthetic Adaptability and Osmoregulation Ability in Watermelon显示文摘The temperature drop of plants from the optimal requirements can increase tolerance to severe chilling stress. Photosynthesis and osmoregulators were analyzed during chilling stress to explore the adaptation mechanisms that underlie the induction of chilling tolerance in response to suboptimal temperature. The relationships of these processes to suboptimal temperature acclimation in watermelon were then determined.Suboptimal temperature-acclimated watermelon plants demonstrated tolerance during chilling stress, as indicated by the decreased electrolyte leakage and malondialdehyde accumulation compared with those non-acclimated watermelon plants. Chilling-induced photoinhibition and reduction in CO2 assimilation rate were alleviated after suboptimal temperature acclimation. The xanthophyll cycle level was enhanced by improving thermal dissipation ability and avoiding light damage. Consequently, the chilling tolerance of suboptimal temperature-acclimated watermelon plants was enhanced. The osmoregulation ability induced by suboptimal temperature acclimation protected watermelon plants against chilling injury because of the accumulation of small molecular substances, such as soluble sugar and proline. The protein levels of Rubisco activase(ClRCA) and the gene expression of the Benson–Calvin cycle simultaneously increased in suboptimal temperature-acclimated watermelon plants during chilling stress. Chilling tolerance in watermelon plants induced by suboptimal temperature acclimation is associated with enhanced photosynthetic adaptability and osmoregulation ability. | Junyang Lu Muhammad Azher Nawaz Nannan Wei Fei Cheng Zhilong Bie | 2020 | Horticultural Plant Journal2020，6，1： | 8 |
| 9 | Effects of medicinal plants on Alzheimer's disease and memory deficits显示文摘Alzheimer's disease is an age-related neurodegenerative disorder characterized by memory deficits. Various studies have been carried out to find therapeutic approaches for Alzheimer's disease. However, the proper treatment option is still not available. There is no cure for Alzheimer's disease, but symptomatic treatment may improve the memory and other dementia related problems. Traditional medicine is practiced worldwide as memory enhancer since ancient times. Natural therapy including herbs and medicinal plants has been used in the treatment of memory deficits such as dementia, amnesia, as well as Alzheimer's disease since a long time. Medicinal plants have been used in different systems of medicine, particularly Unani system of medicines and exhibited their powerful roles in the management and cure of memory disorders. Most of herbs and plants have been chemically evaluated and their efficacy has also been proven in clinical trials. However, the underlying mechanisms of actions are still on the way. In this paper, we have reviewed the role of different medicinal plants that play an important role in the treatment of Alzheimer's disease and memory deficits using conventional herbal therapy. | Muhammad Akram Allah Nawaz | 2017 | Neural Regeneration Research2017，12，4： | 7 |
| 10 | 2型糖尿病患者肠道拟类菌属和双歧杆菌属多样性的PCR-DGGE指纹图谱分析显示文摘目的分析2型糖尿病患者肠道拟类菌属和双歧杆菌属的多样性及其与健康个体的差异,探讨糖尿病与肠道优势菌属的相关性。方法收集2型糖尿病患者和健康志愿者粪样,提取样品中菌群总DNA,利用拟类菌和双歧杆菌16SrRNA种属特异性引物,进行PCR扩增,将产物用变性梯度凝胶电泳分离,获得肠道菌群分子指纹图谱,进行多样性和相似性等特征分析。结果糖尿病组和健康人组样品DGGE图谱多样性指数范围分别是:拟类菌属0.89(0.75~0.95),0.95(0.89~0.97);双歧杆菌属:0.85(0.75~0.94),0.87(0.73~0.93)。组内成对相似性系数累积曲线分析,拟类菌属:小于0.5的Cs值在糖尿病组占到总Cs值个数的85.83%,而健康人组只占到35.71%;双歧杆菌属:小于0.4的Cs值在糖尿病组占到总Cs值个数的90%,健康人组占到总Cs值个数的60.7%。结论糖尿病患者和健康人肠道拟类菌属和双歧杆菌属指纹图呈现个体特异性,糖尿病患者两种菌属多样性与健康个体无显著差异,而糖尿病患者个体之间的相似性较健康个体之间低。 | 吴晓康 徐纪茹 张旭燕 马超锋 韩蕾 申艳星 NAWAZ M 王娟 | 2010 | 西安交通大学学报(医学版)2010，31，4： | 7 |
| 11 | Comprehensive Mineral Nutrition Analysis of Watermelon Grafted onto Two Different Rootstocks显示文摘Grafting is a widely used practice in fruit-bearing vegetables. However, why grafting affects plant growth, fruit yield, and quality, especially from the aspect of mineral nutrition, remains unclear. In this study, watermelon cultivar ‘Zaojia 8424' was grafted onto bottle gourd ‘Jingxinzhen1'(Lagenaria siceraria) and pumpkin ‘Qingyanzhen 1'(Cucurbita maxima × C. moschata). Non-grafted plants were used as the control. Results show that rootstock grafting significantly increases plant growth and single fruit weight of watermelon. Watermelon grafted onto rootstocks, especially pumpkin, exhibits significantly higher root volume, root surface area, and number of root tips and forks in comparison with non-grafted plants. Fruit flesh, rind firmness, and rind thickness were enhanced by grafting. However, fruit soluble solids and taste significantly decreased in plants grafted onto pumpkin. The total uptake(mg · plant^(-1)) and concentration(mg · g^(-1)DW) of N, K, Ca, Fe, Mg, and Mn in root, stem, leaf,fruit rind, and flesh were generally higher in grafted plants compared to non-grafted ones, especially for N of pumpkin rootstock-grafted plants.The total uptake of nutrients of plants grafted onto bottle gourd and pumpkin was increased by 30.41% and 49.14% at fruit development stage and by 21.33% and 47.46% at fruit maturation stage, respectively, compared with non-grafted plants. We concluded that watermelon grafting onto suitable rootstocks can increase the uptake of mineral nutrition, especially for N in the pumpkin rootstock grafted plants, thereby affecting plant growth, fruit yield, and quality. | HUANG Yuan ZHAO Liqiang KONG Qiusheng CHENG Fei NIU Mengliang XIE Junjun Muhammad Azher Nawaz BIE Zhilong | 2016 | Horticultural Plant Journal2016，2，2： | 7 |
| 12 | 863 genomes reveal the origin and domestication of chicken显示文摘Despite the substantial role that chickens have played in human societies across the world,both the geographic and temporal origins of their domestication remain controversial.To address this issue,we analyzed 863 genomes from a worldwide sampling of chickens and representatives of all four species of wild jungle fowl and each of the five subspecies of red jungle fowl(RJF).Our study suggests that domestic chickens were initially derived from the RJF subspecies Gallus gallus spadiceus whose present-day distribution is predominantly in southwestern China,northern Thailand and Myanmar.Following their domestication,chickens were translocated across Southeast and South Asia where they interbred locally with both RJF subspecies and other jungle fowl species.In addition,our results show that the White Leghorn chicken breed possesses a mosaic of divergent ancestries inherited from other subspecies of RJF.Despite the strong episodic gene flow from geographically divergent lineages of jungle fowls,our analyses show that domestic chickens undergo genetic adaptations that underlie their unique behavioral,morphological and reproductive traits.Our study provides novel insights into the evolutionary history of domestic chickens and a valuable resource to facilitate ongoing genetic and functional investigations of the world's most numerous domestic animal. | Ming-Shan Wang Mukesh Thakur Min-Sheng Peng Yu Jiang Laurent Alain Francois Frantz Ming Li Jin-Jin Zhang Sheng Wang Joris Peters Newton Otieno Otecko Chatmongkon Suwannapoom Xing Guo Zhu-Qing Zheng Ali Esmailizadeh Nalini Yasoda Hirimuthugoda Hidayat Ashari Sri Suladari Moch Syamsul Arifin Zein Szilvia Kusza Saeed Sohrabi Hamed Kharrati-Koopaee Quan-Kuan Shen Lin Zeng Min-Min Yang Ya-Jiang Wu Xing-Yan Yang Xue-Mei Lu Xin-Zheng Jia Qing-Hua Nie Susan Joy Lamont Emiliano Lasagna Simone Ceccobelli Humpita Gamaralalage Thilini Nisanka Gunwardana Thilina Madusanka Senasige Shao-Hong Feng Jing-Fang Si Hao Zhang Jie-Qiong Jin Ming-Li Li Yan-Hu Liu Hong-Man Chen Cheng Ma Shan-Shan Dai Abul Kashem Fazlul Haque Bhuiyan Muhammad Sajjad Khan Gamamada Liyanage Lalanie Pradeepa Silva Thi-Thuy Le Okeyo Ally Mwai Mohamed Nawaz Mohamed Ibrahim Megan Supple Beth Shapiro Olivier Hanotte Guojie Zhang Greger Larson Jian-Lin Han Dong-Dong Wu Ya-Ping Zhang | 2020 | Cell Research2020，30，8： | 7 |
| 13 | Mimicking peroxidase active site microenvironment by functionalized graphene quantum dots显示文摘The development of high-efficiency peroxidase mimetics is highly desirable in view of high cost and low stability of natural enzymes.From the perspective of mimicking active site microenvironment at low cost,we herein report a novel histidine-functionalized graphene quantum dot(His-GQD)/hemin complex,which exhibits the highest catalytic rate for the peroxidase-based chromogenic reaction among the hemin-containing mimetics reported so far.Also,our peroxidase mimetic shows excellent tolerance to strongly acidic conditions and can function in a wide temperature range.Lineweaver-Burk plots and comprehensive electron paramagnetic resonance analysis reveal a ping-pong type catalytic mechanism for this mimetic.In addition,His-GQD/hemin demonstrates high efficiency and accuracy in detecting H2O2 and blood glucose.Our work provides an effective design of artificial enzymes for practical applications. | Qi Xin Xinrui Jia Asmat Nawaz Wenjing Xie Litao Li Jian Ru Gong | 2020 | Nano Research2020，13，5： | 6 |
| 14 | 应用CRISPR-Cas9基因编辑技术改良传统优质糯稻品种显示文摘靖西香糯是广西著名地方水稻品种,米饭水晶状、糯性强、香味浓、食味优,是优质糯稻的极品,主要缺点是高秆易倒伏,产量较低。为改良靖西香糯株高特性以及保持该品种的传统风味,本研究运用CRISPRCas9技术定向编辑调控水稻株高的SD1基因,在外显子区内设计了两个打靶效率高的靶序列,将这2个靶序列组装到PYLCRISPR/Cas9-MH上,通过农杆菌介导法转化靖西香糯,得到了株高显著变矮的半矮秆突变株系。结果表明,T0代共获得24株SD1突变株,转化植株突变率为85.7%,其中2个靶点同时突变频率占总突变的58.3%,双靶点纯合突变高达42.8%,其中3株(12.5%)是T-DNA-free纯合突变植株。利用T0代双靶点纯合突变T-DNA-free植株种子种植的T1代,检测到16个T-DNA-free植株,其中11个为半矮秆植株。结果还表明,在SD1基因第一外显子内单个碱基的替换或双等位的突变并没有对株高产生较大的影响,而第一外显子双位点缺失突变产生大片段缺失可导致内源GA水平显著降低,进而显著降低了株高。本研究为培育矮秆香糯水稻新品系提供了帮助,表明CRISPR-Cas9应用可高效地定向改良水稻品种,研究结果也为应用现代生物育种技术更好地利用传统资源提供了一个范例。 | 王新 韩悦 冯璇 Gul Nawaz 罗亮 刘芳 覃宝祥 刘耀光 李容柏 | 2019 | 分子植物育种2019，17，19： | 6 |
| 15 | Gingerol activates noxious cold ion channel TRPA1 in gastrointestinal tract显示文摘TRPA1 channels are non-selective cation channels that could be activated by plant-derived pungent products, including gingerol, a main active constituent of ginger. Ginger could improve the digestive function; however whether ginger improves the digestive function through activating TRPA1 receptor in gastrointestinal tract has not been investigated. In the present study, gingerol was used to stimulate cell lines(RIN14B or STC-1) while depletion of extracellular calcium.TRPA1 inhibitor(rethenium red) and TRPA1 gene silencing via TRPA1-specific si RNA were also used for mechanistic studies. The intracellular calcium and secretion of serotonin or cholecystokinin were measured by fura-2/AM and ELISA. Stimulation of those cells with gingerol increased intracellular calcium levels and the serotonin or cholecystokinin secretion. The gingerol-induced intracellular calcium increase and secretion(serotonin or cholecystokinin) release were completely blocked by ruthenium red, EGTA, and TRPA1-specific si RNA. In summary, our results suggested that gingerol derived from ginger might improve the digestive function through secretion releasing from endocrine cells of the gut by inducing TRPA1-mediated calcium influx. | YANG Meng-Qi YE Lin-Lan LIU Xiao-Ling QI Xiao-Ming LV Jia-Di WANG Gang FARHAN Ulah-Khan WAQAS Nawaz CHEN Ding-Ding HAN Lei ZHOU Xiao-Hui | 2016 | Chinese Journal of Natural Medicines2016，14，6： | 6 |
| 16 | Sludge granulation and efficiency of phase separator in UASB reactor treating combined industrial effluent显示文摘污泥使成粒状和 gas-liquid-solid 的效果隔板(图文集) designon upflow 的效率厌氧的污泥毛毯( UASB )和 upflow 厌氧的 sludgefilter ( UASF )反应堆,在从 3~12 h 的 HRT 操作 investigated.VSS/TS ratiogradually 在两个被增加有增加污泥的反应堆变老(从 0.5 到超过 0.7 forUASB 反应堆并且 0.012~0.043 为 UASF 反应堆) UASF sludgeshowed 的.X光线衍射分析扩展揭示它的另外的 abs | Abdullah Yasar Nasir Ahmad Muhammad Nawaz Chaudhry Aamir Amanat Ali Khan | 2007 | Journal of Environmental Sciences2007，19，5： | 6 |
| 17 | 甘蓝型油菜种质群体农艺性状变异及相关性分析显示文摘考察了来自全国各地的377份甘蓝型油菜种质材料,在贵阳环境条件下种植的7个重要农艺性状,即:株高(X1),每角果粒数(X2),角果长度(X3),一次有效分支数(X4),主分支长度(X5),主分支角果数(X6),侧枝角度(X7)。结果显示这些性状在贵阳环境条件下表现出了丰富的表型变异。相关性分析表明:每角果粒数(X2)与株高(X1)、角果长度(X3)、主分支长度(X5)、主分支角果数(X6)、侧枝角度(X7)之间均呈现极显著的正相关关系,相关系数分别为:0.239、0.350、0.202、0.207、0.199;一次有效分支数(X4)与株高(X1)之间呈现极显著的正相关关系,相关系数为0.156。主成分分析显示:前4个主成分因子总共能解释77.38%的表型变异,它们分别是32.67%(PCA 1),18.25%(PCA 2),15.56%(PCA 3),10.91%(PCA 4)。结合本课题组育种目标及本研究性状考察结果,共筛选出23份具有特异农艺性状的变异的材料,可作为本课题组油菜育种和基础研究用材料。 | 叶波涛 余坤江 万薇 Aimal Nawaz Khattak 林树春 田恩堂 | 2019 | 种子2019，38，5： | 6 |
| 18 | Complementary transmissive ultra-thin meta-deflectors for broadband polarization-independent refractions in the microwave region显示文摘Polarization manipulation is a significant issue for artificial modulation of the electromagnetic(EM) wave, but general mechanisms all suffer the restriction of inherent symmetric properties between opposite handedness.Herein, a strategy to independently and arbitrarily manipulate the EM wave with orthogonal circular polarizations based on a metasurface is proposed, which effectually breaks through traditional symmetrical characteristics between orthogonal handedness. By synthesizing the propagation phase and geometric phase, the appropriate Jones matrix is calculated to obtain independent wavefront manipulation of EM waves with opposite circular polarizations. Two transmissive ultra-thin meta-deflectors are proposed to demonstrate the asymmetrical refraction of transmitted circularly polarized waves in the microwave region. Simulated transmitted phase front and measured far-field intensity distributions are in excellent agreement, indicating that the transmitted wave with different polarizations can be refracted into arbitrary and independent directions within a wide frequency band(relative bandwidth of 25%). The results presented in this paper provide more freedom for the manipulation of EM waves, and motivate the realizations of various polarization-independent properties for all frequency spectra. | YUEYI YUAN KUANG ZHANG XUMIN DING BADREDDINE RATNI SHAH NAWAZ BUROKUR QUN WU | 2019 | Photonics Research2019，7，1： | 5 |
| 19 | 不同结构SAPO-34催化剂上1-己烯催化裂解制丙烯(英文)显示文摘制备了100%SAPO-34,30%SAPO-34和介孔-SAPO-34三种不同类型的SAPO-34分子筛催化剂,并采用氮吸附、扫描电镜、X射线衍射和红外光谱等方法对催化剂进行了表征.三种催化剂的微孔结构、比表面积和总酸量近似,但具有不同的催化剂组成和次级结构.以1-己烯裂解为模型反应考察了三种催化剂的催化活性.对于30%SAPO-34催化剂,由于添加了粘结剂,其外表面酸性和扩散性能下降,导致催化活性降低;100% SAPO-34催化剂则具有较好的催化性能;介孔SAPO-34催化剂次级结构的存在使其失活较慢,从而提高了原料的转化率.详细讨论了1-己烯催化裂解制丙烯的活性和选择性曲线,以进一步说明催化剂组成和结构的影响. | Zeeshan NAWAZ 汤效平 朱杰 魏飞 Shahid NAVEED | 2009 | 催化学报2009，30，10： | 5 |
| 20 | 丙烷脱氢反应中焙烧温度和反应气氛对Pt-Sn/SAPO-34催化性能的影响(英文)显示文摘在不同的焙烧温度下制备了Pt-Sn/SAPO-34催化剂,并使用X射线衍射、N2吸附、X射线荧光光谱、O2脉冲烧炭、H2程序升温还原和透射电镜等手段对催化剂进行了表征.在微型反应器中评价了Pt-Sn/SAPO-34催化剂对丙烷脱氢制丙烯反应的催化性能,考察了焙烧温度和反应气氛对催化剂性能的影响.结果表明,焙烧温度为500oC时,催化剂具有最佳的反应活性.当焙烧温度高于500oC时,催化剂出现不希望的表面变化,例如活性Pt位点的聚集、Pt的团聚、Sn的流失等.当反应温度为595oC时,Pt-Sn/SAPO-34催化性能稳定,且能够保持表面金属状态. | Zeeshan NAWAZ 汤效平 褚玥 魏飞 | 2010 | 催化学报2010，31，5： | 5 |
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