Showing 1 - 17 results of 17 for search '"thiourea"', query time: 0.07s Refine Results
  1. 1

    Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide by Chua, Chun Kiang, Ambrosi, Adriano, Pumera, Martin

    Published 2013
    “…The reduced graphene oxide product demonstrated a good electrochemical performance with a charge transfer resistance as low as 0.11 kΩ based on EIS measurements and a low overpotential for the oxidation of ascorbic acid. Since thiourea is a common industrial reductant, standard protocols are already in place for the waste produced from this methodology. …”
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  2. 2

    Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea by Kumar, Vipin, Wang, Xu, Lee, Pooi See

    Published 2013
    “…In this work, thiourea provides the ammonium ions which alter the growth rate and stabilize the hexagonal framework. …”
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  3. 3

    Access to all-carbon spirocycles through a carbene and thiourea cocatalytic desymmetrization cascade reaction by Zhuo, Shitian, Zhu, Tingshun, Zhou, Liejin, Mou, Chengli, Chai, Huifang, Lu, Yunpeng, Pan, Lutai, Jin, Zhichao, Chi, Robin Yonggui

    Published 2020
    “…The use of a thiourea cocatalyst is critical to turn on this reaction, as no product was formed in the absence of a thiourea. …”
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  4. 4

    Enantioselective sulfonation of enones with sulfonyl imines by cooperative N-heterocyclic-carbene/thiourea/tertiary-amine multicatalysis by Chi, Robin Yonggui, Jin, Zhichao, Xu, Jianfeng, Yang, Song, Song, Bao-An

    Published 2014
    “…The enantioselectivity of the process was controlled by a chiral thiourea/amine co-catalyst through anion recognition and hydrogen-bonding interactions. …”
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  5. 5

    Design, synthesis and anti-PVY activity of planar chiral thiourea derivatives incorporated with [2.2]paracyclophane by Shu, Liangzhen, Lv, Ya, Chen, Zhongyin, Huang, Yixian, Zhang, Meng, Jin, Zhichao, Li, Tingting, Chi, Robin Yonggui

    Published 2024
    “…To discover new antiviral agents, a class of planar chiral thiourea molecules through the key step of N-heterocyclic carbene-catalyzed nitrile formation reaction was synthesized with excellent optical purities for antiviral evaluations against plant virus PVY. …”
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  6. 6

    Polarization engineering of covalent triazine frameworks for highly efficient photosynthesis of hydrogen peroxide from molecular oxygen and water by Wu, Chongbei, Teng, Zhenyuan, Yang, Chao, Chen, Fangshuai, Yang, Hongbin, Wang, Lei, Xu, Hangxun, Liu, Bin, Zheng, Gengfeng, Han, Qing

    Published 2023
    “…Mechanistic studies reveal the photocatalytic performance is attributed to the prominently enhanced two-electron oxygen reduction reaction by forming endoperoxide at the triazine unit and highly concentrated holes at the thiourea site. The generated O2 from water oxidation is subsequently consumed by the oxygen reduction reaction (ORR), thereby boosting overall reaction kinetics. …”
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  7. 7

    Highly enantio- and diastereoselective reactions of γ-substituted butenolides through direct vinylogous conjugate additions by Zhang, Wen, Tan, Davin, Lee, Richmond, Tong, Guanghu, Chen, Wenchao, Qi, Baojian, Huang, Kuo-Wei, Tan, Choon-Hong, Jiang, Zhiyong

    Published 2013
    “…The strength of the weak: An L-tert-leucine-derived amine–thiourea catalyst (see scheme, green box) promotes the asymmetric vinylogous conjugate addition reaction between γ-aryl- and alkyl-substituted butenolides with the butenamides and enoates shown. …”
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  8. 8

    Asymmetric Michael addition of 5 H-oxazol-4-ones to vinyl sulfones : stereoselective synthesis of monofluorinated analogs of 2-tertiary hydroxyl-3-methyl-substituted carboxylic aci... by Liu, Qian, Qiao, Baokun, Chin, Kek Foo, Tan, Choon-Hong, Jiang, Zhiyong

    Published 2015
    “…In the presence of 10 mol % of quinine-based benzyl-substituted thiourea as catalyst at 0 °C, the products could be obtained with excellent enantio- and diastereoselectivity (up to>99 % ee and>20:1 dr). 1.0 mol % of catalyst also produced the corresponding adducts with similar stereoselective results when the temperature was increased to 25 °C. …”
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  9. 9

    Development of optically transparent ZnS/poly(vinylpyrrolidone) nanocomposite films with high refractive indices and high Abbe numbers by Zhang, Quanyuan, Goh, Eunice Shing Mei, Judeh, Zaher, Chan-Park, Mary B., Chen, Tupei, Xu, Rong, Beuerman, Roger W.

    Published 2014
    “…ME-ZnS NPs of around 3 nm were prepared from zinc acetate and thiourea precursors in N,N-dimethylformamide using ME as a capping agent. …”
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  10. 10

    Mesoporous carbon nitride with in situ sulfur doping for enhanced photocatalytic hydrogen evolution from water under visible light by Hong, Jindui, Xia, Xiaoyang, Wang, Yongsheng, Xu, Rong

    Published 2013
    “…In situ sulfur-doped mesoporous g-C3N4 (mpgCNS) was synthesized from a simple organosulfur compound, thiourea, using SiO2 nanoparticles as the hard template. …”
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  11. 11

    cis-Cyclodiphosph(v/v)azanes as highly stable and robust main group supramolecular building blocks by Tan, Davin, Ng, Zi Xuan, Sim, Ying, Ganguly, Rakesh, García, Felipe

    Published 2020
    “…Such bifurcated hydrogen bonds formed by the cyclodiphosphazane scaffold contain larger bite angles than those of their more well-known urea, thiourea and squaramide counterparts. We obtained five different solvate crystals as well as three different cocrystals that all contain similar hydrogen bonding motifs. …”
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  12. 12

    A facile synthesis of label-free carbon dots with unique selectivity-tunable characteristics for ferric ion detection and cellular imaging applications by Chan, Kok Ken, Yang, Chengbin, Chien, Yi-Hsin, Panwar, Nishtha, Yong, Ken-Tye

    Published 2021
    “…This work reports the synthesis of nitrogen and sulfur co-doped carbon dots (NS-CDs) via a one-step facile microwave-assisted pyrolysis using citric acid and thiourea as the carbon precursor and dopant, respectively. …”
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  13. 13

    Towards high-powered remote WLED based on flexible white-luminescent polymer composite films containing S, N co-doped graphene quantum dots by Wang, Xiao-Fei, Wang, Gui-Gen, Li, Jia-Bing, Liu, Zheng, Zhao, Wen-Feng, Han, Jie-Cai

    Published 2019
    “…To this end, the S, N-GQDs with an average diameter of ∼4.46 nm are obtained by a hydrothermal approach using citric acid and thiourea as source materials. The PL spectra of S, N-GQDs show an excitation-independent behavior in the range of 300–380 nm. …”
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  14. 14

    Nanoparticle-induced grain growth of carbon-free solution-processed CuIn(S,Se)2 solar cell with 6% efficiency by Cai, Yongan, Ho, John C. W., Batabyal, Sudip Kumar, Liu, Wei, Sun, Yun, Mhaisalkar, Subodh Gautam, Wong, Lydia Helena

    Published 2013
    “…In this paper, we develop a new technique to deposit large grain, Carbon-free CISSe absorber layers from aqueous nanoparticle/precursor mixture which resulted in a solar cell with PCE of 6.2%. CuCl2, InCl3, and thiourea were mixed with CuS and In2S3 nanoparticles in water to form the unique nanoparticle/precursor solution. …”
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  15. 15

    Design, synthesis, and herbicidal activity of substituted 3-(pyridin-2-yl)phenylamino derivatives by Chen, Zhongyin, Cai, Hui, Zhang, Xiao, Zhang, Meng, Hao, Ge-Fei, Jin, Zhichao, Ren, Shichao, Chi, Robin Yonggui

    Published 2024
    “…To discover protoporphyrinogen oxidase (PPO) inhibitors with robust herbicidal activity and crop safety, three types of substituted 3-(pyridin-2-yl)phenylamino derivatives bearing amide, urea, or thiourea as side chain were designed via structure splicing strategy. …”
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  16. 16

    Three-dimensional nitrogen and sulfur co-doped holey-reduced graphene oxide frameworks anchored with MoO2 nanodots for advanced rechargeable lithium-ion batteries by Pei, Jie, Geng, Hongbo, Ang, Huixiang, Zhang, Lingling, Wei, Huaixin, Cao, Xueqin, Zheng, Junwei, Gu, Hongwei

    Published 2020
    “…First, the NP-NSG is formed via hydrothermal treatment using graphene oxide, hydrogen peroxide (H2O2), and thiourea as the co-dopant for N and S, followed by calcination of the N/S co-doped GO in the presence of ammonium molybdate tetrahydrate to obtain the 3D MoO2/NP-NSG product. …”
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  17. 17

    Mechanically resistant and sustainable cellulose-based composite aerogels with excellent flame retardant, sound-absorption, and superantiwetting ability for advanced engineering ma... by He, Chenglin, Huang, Jianying, Li, Shuhui, Meng, Kai, Zhang, Liyuan, Chen, Zhong, Lai, Yuekun

    Published 2019
    “…The results demonstrated that the AH NPs homogeneous dispersion within cellulose aerogel, and the presence of AH NPs did not have a remarkable influence on the homogeneous porous structure of cellulose aerogels when compared with cellulose aerogel prepared from the NaOH/urea/thiourea solution. The prepared composite cellulose aerogels showed excellent flame retardancy, the peak of heat release rate (PHRR) of the composite aerogels decreased significantly from 280 W/g of the control sample to 22 W/g, and total heat release (THR) of the composite aerogels decreased remarkably from 13.2 kJ/g to 1.6 kJ/g. …”
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