Mechanism study of hemicellulose pyrolysis by combining in-situ DRIFT, TGA-PIMS and theoretical calculation

2020 ◽  
Author(s):  
Gongxin Dai ◽  
Guanyu Wang ◽  
Kaige Wang ◽  
Zhongyue Zhou ◽  
Shurong Wang
Keyword(s):  
Theoretical Calculation ◽  
Mechanism Study ◽  
In Situ Drift

Regioselective Thermal Reaction between Triethylamine and C60Revisited: X-ray Confirmation of the Pentane-Fused Adduct and in Situ Mechanism Study

2015 ◽  
Vol 2015 (26) ◽  
pp. 5742-5746 ◽  
Author(s):  
Muqing Chen ◽  
Wangqiang Shen ◽  
Lipiao Bao ◽  
Wenting Cai ◽  
Yunpeng Xie ◽  
...  
Keyword(s):  
Thermal Reaction ◽  
Mechanism Study ◽  
X Ray

Crotonaldehyde hydrogenation over alumina- and silica-supported Pt–Sn catalysts of different composition. In situ DRIFT study

2000 ◽  
Vol 2 (13) ◽  
pp. 3063-3069 ◽  
Author(s):  
Fernando Coloma ◽  
Jordi Llorca ◽  
Narcís Homs ◽  
Pilar Ramírez de la Piscina ◽  
Francisco Rodríguez-Reinoso ◽  
...  
Keyword(s):  
Crotonaldehyde Hydrogenation ◽  
In Situ Drift

In situ DRIFT study on NH3 selective catalytic reduction of NO over HBEA zeolite doped with CeO2

2020 ◽  
Vol 506 ◽  
pp. 144715 ◽  
Author(s):  
Yun Shi ◽  
Xiaoxiang Wang ◽  
Liang Chen ◽  
Sujing Li ◽  
Chao Wu ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No ◽  
In Situ Drift

scholarly journals A Strategy of In Situ Catalysis and Nucleation of Biocompatible Zinc Salts of Amino Acids towards Poly(l-lactide) with Enhanced Crystallization Rate

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 790 ◽  
Author(s):  
Yuan Liang ◽  
Meili Sui ◽  
Maomao He ◽  
Zhiyong Wei ◽  
Wanxi Zhang
Keyword(s):  
Amino Acids ◽  
Crystallization Rate ◽  
Mechanism Study ◽  
Dual Roles ◽  
One Pot ◽  
Amino Acid Ligand ◽  
Nucleation Effect ◽  
New Strategy ◽  
Zinc Salts

The intrinsic drawback of slow crystallization rate of poly(l-lactide) (PLLA) inevitably deteriorates its final properties of the molded articles. In this work, we proposed a new strategy towards poly(l-lactide) with enhanced crystallization rate by ring opening polymerization (ROP) of l-lactide (l-LA) catalyzed by biocompatible zinc salts of amino acids. For the first time we developed a one-pot facile method of zinc salts of amino acids acting dual roles of catalysis of l-LA polymerization and in situ nucleation of the as-prepared PLLA. Nine zinc salts of different amino acids, including three kinds of amino acids ligands (alanine, phenylalanine, and proline) with l/d-enantiomers and their equimolar racemic mixtures, were first prepared and tested as catalysts of l-LA polymerization. A partial racemization was observed for zinc salts of amino acids whereas no racemization was detected for the reference stannous octoate. The polymerization mechanism study showed that the interaction of zinc salts of amino acids and benzyl alcohol forms the actual initiator for l-LA polymerization. Isothermal crystallization kinetics analysis showed that the residual zinc salts of amino acids exhibited a significant nucleation effect on PLLA, evidenced by the promotion of the crystallization rate, depending on the amino acid ligand and its configuration. Meanwhile, the residual zinc salts of amino acids did not compromise the thermal stability of the pristine PLLA.

Thermosetting mechanism study of silicon-containing polyarylacetylene via in situ FTIR and solid-state NMR spectroscopy

2018 ◽  
Vol 136 (13) ◽  
pp. 47301 ◽  
Author(s):  
Xintong You ◽  
Shifeng Deng ◽  
Yanchun Huang ◽  
Zhongqi Liu ◽  
Yanhong Hu
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
In Situ Ftir ◽  
Mechanism Study ◽  
Solid State Nmr Spectroscopy

Mechanism study on the influence of in situ SOx removal on N2O emission in CFB boiler

2015 ◽  
Vol 333 ◽  
pp. 194-200 ◽  
Author(s):  
Lingnan Wu ◽  
Wu Qin ◽  
Xiaoying Hu ◽  
Changqing Dong ◽  
Yongping Yang
Keyword(s):  
N2o Emission ◽  
Mechanism Study ◽  
Cfb Boiler

In situ DRIFT study of nonoxidative methane reaction on Mo/SnO2 catalyst

2008 ◽  
Vol 94 (1) ◽  
pp. 165-173 ◽  
Author(s):  
Heider Nasser ◽  
Ákos Rédey ◽  
Tatiana Yuzhakova ◽  
József Kovács
Keyword(s):  
In Situ Drift
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