Now showing items 1-20 of 295

    • 12-Tungstophosphoric acid/boric acid as synergetic catalysts for the conversion of glucose into 5-hydroxymethylfurfural in ionic liquid 

      Hu, Lei; Sun, Yong; Lin, Lu; Liu, Shijie; 孙勇; 林鹿 (Elsevier Ltd, 2012)
      An efficient process for the conversion of glucose into 5-hydroxymethylfurfural (HMF) with environmentally friendly and cheap catalysts was studied in the ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIM]Cl). Among ...
    • A downshifting Eu 3+ doped glass embedded with concave pyramid microstructure to improve the efficiency of silicon solar cell 

      Xing Yang; Jiachao Chen; Songsheng Zheng; Chao Chen (2019-12-10)
      Abstract(#br)The average photoelectric conversion efficiency (PCE) of a bare mono crystalline silicon solar cell is 14.71 (±0.03)% under AM1.5. It decreases to 14.20 (±0.005)% when covering an un-doped flat glass on the ...
    • A flexible Cu-based catalyst system for the transformation of fructose to furanyl ethers as potential bio-fuels 

      Junnan Wei; Ting Wang; Xuejuan Cao; Huai Liu; Xing Tang; Yong Sun; Xianhai Zeng; Tingzhou Lei; Shijie Liu; Lu Lin (2019-12-05)
      Abstract(#br)Biomass-derived furanyl ethers, such as 5-alkoxymethylfurfurals (AMFs) and 2,5-bis(alkoxymethyl)furans (BAMFs), can be employed as promising biofuels or additives. The development of multifunctional catalysts ...
    • A metal-semiconductor-metal detector based on ZnO nanowires grown on a graphene layer 

      Xu, Qiang; Cheng, Qijin; Zhong, Jinxiang; Cai, Weiwei; Zhang, Zifeng; Wu, Zhengyun; Zhang, Fengyan; 程其进; 蔡伟伟; 吴正云; 张风燕 (IOP PUBLISHING LTD, 2014-02-07)
      High quality ZnO nanowires (NWs) were grown on a graphene layer by a hydrothermal method. The ZnO NWs revealed higher uniform surface morphology and better structural properties than ZnO NWs grown on SiO2/Si substrate. A ...
    • A Triple Beam In-Situ Facility at Xiamen University 

      Tang, Bing; Zhang, Jian; Ma, Ruigang; Ma, Yingjun; Huang, Qinghua; Chen, Lihua; Cui, Baoqun; Wu, Yazhao; Li, Ning; Jiang, Weisheng; 张建; 李宁 (JAPAN INST METALS, 2014 MAR)
      The ion implantation is a powerful scientific and technological tool in material research. Multiple ion beam facilities have been used to simulate the irradiation effects of neutrons on relevant nuclear materials over 30 ...
    • Advanced phase change composite by thermally annealed defect-free graphene for thermal energy storage 

      Xin, Guoqing; Sun, Hongtao; Scott, Spencer Michael; Yao, Tiankai; Lu, Fengyuan; Shao, Dali; Hu, Tao; Wang, Gongkai; Ran, Guang; Lian, Jie; 冉广 (American Chemical Society, 2014 Septe)
      Organic phase change materials (PCMs) have been utilized as latent heat energy storage and release media for effective thermal management. A major challenge exists for organic PCMs in which their low thermal conductivity ...
    • An Approach to Probe Solid Electrolyte Interface on Si Anode by P-31 MAS NMR 

      Chen, Shoushun; Zhong, Guiming; Cao, Xia; Gao, Yuxing; Jin, Yanting; Wu, Anan; Gong, Zhengliang; Fu, Riqiang; Zhao, Yufen; Yang, Yong; 龚正良; 赵玉芬; 杨勇; 吴安安 (ELECTROCHEMICAL SOC INC, 2013)
      Solid electrolyte interface (SEI) is considered as one of the most important factors determining the electrochemical performance of lithium-ion batteries. Here we introduce P-31 nucleus as a probe to detect the formation ...
    • An ultralight, supercompressible, superhydrophobic and multifunctional carbon aerogel with a specially designed structure 

      Sishi Long; Yunchao Feng; Faliang He; Shuaishuai He; Huachi Hong; Xuerui Yang; Lingling Zheng; Jian Liu; Lihui Gan; Minnan Long (2019-12-11)
      Abstract(#br)Compressible and ultralight carbon aerogels are attractive due to its compressibility, elasticity and conductivity. However, it is still a great challenge to enrich the properties of carbon aerogel to meet ...
    • A级数据中心综合能源系统多目标优化设计和调度 

      刘成运; 孟超; 景锐; 杨琪; 程其进 (2019-04-03)
      采用分布式综合能源系统取代数据中心的传统供能系统,是降低数据中心运行费用的有效措施。考虑A级数据中心的供能可用度,设计了一种分布式综合能源系统,并基于混合整数非线性规划方法,建立了综合经济和环境效益的多目标优化设计和调度模型,选取ε-约束法对相互制约的多目标问题进行处理,在通用代数建模系统(GAMS)中建模并调用LINDOGLOBAL求解器进行优化求解。采用多维偏好分析线性规划决策法从非劣解集中选出最终解,并通过逼近于理想解的排序方法进 ...
    • A级数据中心综合能源系统多目标优化设计和调度 

      刘成运; 孟超; 景锐; 杨琪; 程其进 (2019-04-03)
      采用分布式综合能源系统取代数据中心的传统供能系统,是降低数据中心运行费用的有效措施。考虑A级数据中心的供能可用度,设计了一种分布式综合能源系统,并基于混合整数非线性规划方法,建立了综合经济和环境效益的多目标优化设计和调度模型,选取ε-约束法对相互制约的多目标问题进行处理,在通用代数建模系统(GAMS)中建模并调用LINDOGLOBAL求解器进行优化求解。采用多维偏好分析线性规划决策法从非劣解集中选出最终解,并通过逼近于理想解的排序方法进 ...
    • Ball-milling properties and sintering behavior of Fe-Tm 2 O 3 mixture powders 

      Yongshuai Mu; Guang Ran; Weisong Wu; Chao Ye (2019-09-03)
      Abstract(#br)Aimed at the existing problems of current neutron absorbers that were used in control rods to safely operate a nuclear reactor, new type of Fe-based Tm 2 O 3 composites and Fe-based TmFeO 3 composites, which ...
    • CaO催化剂对松木锯末快速热解制备生物油的影响 

      袁亮; 刘运权; 王夺; 臧云浩 (2013-07-31)
      在小型鼓泡流化床反应器中,对添加CAO催化剂的松木锯末进行了快速热解制备生物油的研究。热解蒸汽采用多级冷凝,以尽可能回收更多的液体产物,同时实现液体产物的初步切割分馏。其中第一级冷凝采用循环冷却介质进行喷淋激冷,第二、三级分别采用间壁式水冷和冰浴冷却,收集到的液体产物依次命名为生物油1、生物油2和生物油3。研究表明:加入CAO后,生物油1、2和3中的含水率依次增加,热值依次降低;酸度明显下降,酮类和烃类增加,酚类减少。室温下放置30 ...
    • Cascade conversion of furfural to fuel bioadditive ethyl levulinate over bifunctional zirconium-based catalysts 

      Mengzhu Li; Junnan Wei; Guihua Yan; Huai Liu; Xing Tang; Yong Sun; Xianhai Zeng; Tingzhou Lei; Lu Lin (2019-12-05)
      Abstract(#br)Biomass-derived ethyl levulinate (EL) is currently deemed as a promising fuel bioadditive to improve (bio)diesel combustion performance without the sacrifice of its octane number. In this contribution, a range ...
    • Catalyst-free growth mechanism and structure of graphene-like nanosheets formed by hot-filament CVD 

      Wang, Biben; Zheng, Kun; Cheng, Qijin; Wang, Li; Chen, Cheng; Dong, Guobo; 程其进 (Wiley-VCH Verlag, 2014 Decem)
      We report on a simple and effective method of synthesizing graphene-like nanosheets on silicon substrates pre-deposited with a carbon film or carbon nanodots in hot-filament(HF)CVD from a methane precursor. The results of ...
    • Catalytic conversion of biomass-derived carbohydrates into fuels and chemicals via furanic aldehydes 

      Hu, Lei; Zhao, Geng; Hao, Weiwei; Tang, Xing; Sun, Yong; Lin, Lu; Liu, Shijie; 孙勇; 林鹿 (Royal Society of Chemistry, 2012 Novem)
      In recent years, substantial interest has been devoted to the conversion of biomass-derived carbohydrates into furanic aldehydes such as furfural, 5-hydroxymethylfurfural (HMF) and 5-halomethylfurfural, because these ...
    • Catalytic conversion of carbohydrates into 5-hydroxymethylfurfural over cellulose-derived carbonaceous catalyst in ionic liquid 

      Hu, Lei; Zhao, Geng; Tang, Xing; Wu, Zhen; Xu, Jiaxing; Lin, Lu; Liu, Shijie; 林鹿 (ELSEVIER SCI LTD, 2013)
      Three environmental-benign and low-cost carbon-based solid acid catalysts containing -SO3H, -COOH and phenolic -OH groups were prepared and used for the conversion of glucose into 5-hydroxymethylfurfural (HMF) in ionic ...
    • Catalytic conversion of glucose into 5-hydroxymethylfurfural using double catalysts in ionic liquid 

      Hu, Lei; Sun, Yong; Lin, Lu; Liu, Shijie; 孙勇; 林鹿 (J TAIWAN INST CHEM E, 2012-09)
      An efficient process for the conversion of glucose into 5-hydroxymethylfurfural (HMF) using chromium (III) chloride (CrCl3 center dot 6H(2)O) and boric acid (B(OH)(3)) as double catalysts in ionic liquid 1-butyl-3-methyl ...
    • Catalytic conversion of glucose to levulinic acid by solid heteropolyacid salts 

      Zeng, Shanshan; Lin, Lu; Liu, Di; Peng, Lincai; 林鹿 (Chemical Industry Press, 2012 Decem)
      A series of metal-modified heteropolyacid salt catalysts (MXH3-2XPW12O40, M=Zn, Cu, Cs, Ag) were prepared, and the solid heteropolyacid salt Ag3W12O40 was used in hydrolysis of glucose to produce levulinic acid. The surface ...
    • Ce-Zr-Al-O催化剂催化烟梗热解的分析 

      李文斌; 郑云武; 李水荣; 刘志华; 刘灿; 郑志锋 (2020-2-27)
      以活性组分的盐溶液为前体,通过共沉淀法制备CeO2、Ce-Zr-O(CZ)和Ce-Zr-Al-O(CZA)催化剂,利用固定床热解器研究烟梗在催化剂参与下的催化热解过程及产物分布。采用N2吸附-脱附、X射线衍射(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、程序升温脱附(NH3-TPD)和X光射线电子能谱(XPS)等手段对催化剂的比表面积、孔结构、形貌特性以及催化剂表面酸性分布进行表征。结果表明,Al的加入增加了催化剂的比 ...
    • Changes of the surface structure of corn stalk in the cooking process with active oxygen and MgO-based solid alkali as a pretreatment of its biomass conversion 

      Pang, Chunsheng; Xie, Tujun; Lin, Lu; Zhuang, Junping; Liu, Ying; Shi, Jianbin; Yang, Qiulin; 林鹿 (BIORESOURCE TECHNOL, 2012-01)
      This study presents a novel, efficient and environmentally friendly process for the cooking of corn stalk that uses active oxygen (O(2) and H(2)O(2)) and a recoverable solid alkali (MgO). The structural changes on the ...