Optimization of the catalytic hydrogenation of terebinth by a Ni-based catalyst

Wang, Linlin; Guo, Huiqing; Chen, Xiaopeng; Chen, Qingmei; Wei, Xiaojie; Ding, Yue; Zhu, Bixin

doi:10.1039/c4cy01704h

Cited by 14 publications

(11 citation statements)

References 27 publications

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“…Where Y is the predicted response (i.e., the tearing index); A, B are coded levels of independent variables; the coefficients of linear effect, quadratic effect and interaction effect are respectively represented by bi,bii,bij (Wang et al 2015).…”

Section: Design Of the Response Surface Methodologymentioning

confidence: 99%

Combined Polyhexamethylene Quanidine and Nanocellulose for the Conservation and Enhancement of Ancient Paper

Tian

et al. 2021

Preprint

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Here a new reinforcement and mold-resistant method for ancient books is proposed based on the suspension of nanocellulose (CNCS) and polyhexamethylene guanidine (PHMG). The paper documents were treated with the reinforcement suspension under the optimum ratio obtained by response surface methodology (RSM), then tested for mildew resistance and accelerated aging experiments to evaluate the anti-mildew effect, mechanical strengthening properties and durability of CNCS/PHMG compound solution on ancient books. The results showed the mechanical properties of the paper treated by CNCS/PHMG were significantly improved at the optimum ratio (0.3 wt%:0.3 wt%), with the folding endurance increased by 1.78 times and the increase ratio of tensile strain was 46.62%. Meanwhile, the treated paper maintained the same good zero-span tensile strength after aging 7 days as the sample unaged untreated, indicating superior aging resistance of this treatment method. In addition, excellent biocidal activity with the growth trace of mold less than 10% was observed on treated paper. In conclusion, it is a method that simple to operate, which can be a promising treatment of conservation and enhancement of ancient paper.

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Section: Design Of the Response Surface Methodologymentioning

confidence: 99%

Combined Polyhexamethylene Quanidine and Nanocellulose for the Conservation and Enhancement of Ancient Paper

Tian

et al. 2021

Preprint

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“…Considering that a catalytic process as a whole is a complex issue, an available tool for the correlation among all the above‐mentioned variables has been increasingly used to help researches: a multivariate analysis. Its efficiency in building models, optimize multifactor experiments, and evaluate the effects of plentiful aspects provides the possibility of gathering all the information and predict how a system response will be under certain conditions …”

Section: Introductionmentioning

confidence: 99%

“…Its efficiency in building models, optimize multifactor experiments, and evaluate the effects of plentiful aspects provides the possibility of gathering all the information and predict how a system response will be under certain conditions. [21] Herein, we propose the synthesis of a catalyst comprised of AuÀ Pd NPs impregnated by sol-immobilization in SrCO 3 . We have demonstrated that the combination of AuÀ Pd NPs over such support can provide a pronounced performance for the solvent-free oxidation of benzyl alcohol without the need for external base addition.…”

Section: Introductionmentioning

confidence: 99%

Au−Pd Selectivity‐switchable Alcohol‐oxidation Catalyst: Controlling the Duality of the Mechanism using a Multivariate Approach

et al. 2019

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Supported gold‐palladium nanoparticles are highly selective catalysts for the oxidation of alcohols. However, little is known about how integrated reaction conditions can affect the chemoselectivity of a specific catalytic system. Herein, a novel Au−Pd selectivity‐switchable catalyst supported on SrCO3 is reported; and a multivariate optimization was suggested as the key process to better understand the formation of the products. The optimization approach considered temperature, pressure, time of reaction, and Au : Pd molar ratio, and settled that the temperature and Au : Pd molar ratio showed an important effect on the ester yield, while just the metal molar ratio significantly influenced the selectivity for the aldehyde. Thus, taking into consideration the experimental data and optimized conditions, we were able to efficiently switch the selectivity by just changing the pressure of the system in a benzyl alcohol oxidation reaction. In addition, we proposed that the presence of O2 implies that there are two catalytic pathways, which leads to different selectivity, allowing us to bring some mechanistic insights dealing with the duality of the mechanism. Such outcomes are based on dense experimental results and characterizations (FT‐IR, Rietveld refinement, XPS, H2‐TPR, and EDS‐STEM). The catalyst was also very stable, presenting activity up to 6 runs without loss of activity and selectivity, under certain reaction conditions.

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“…[1][2][3][4] cis-Pinane is prepared by selective hydrogenation of a-pinene. Traditionally, a-pinene hydrogenation is commonly catalyzed by Pd/C 5 or Pt/C, 6 but the content of cis-pinane in products is very low. Moreover, carbon deposition or coking tended to occur due to the poor stability of carbon materials when the catalyst was recycled.…”

Section: Introductionmentioning

confidence: 99%

Preparation of cis-pinane via α-pinene hydrogenation in water by using Ru nanoparticles immobilized in functionalized amphiphilic mesoporous silica

et al. 2017

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Optimization of the catalytic hydrogenation of terebinth by a Ni-based catalyst

Abstract: A transformation of renewable biomass to useful chemicals, using waste fluid catalytic cracking catalyst-supported nickel, was accomplished.

Cited by 14 publications

References 27 publications

Combined Polyhexamethylene Quanidine and Nanocellulose for the Conservation and Enhancement of Ancient Paper

Combined Polyhexamethylene Quanidine and Nanocellulose for the Conservation and Enhancement of Ancient Paper

Au−Pd Selectivity‐switchable Alcohol‐oxidation Catalyst: Controlling the Duality of the Mechanism using a Multivariate Approach

Preparation of cis-pinane via α-pinene hydrogenation in water by using Ru nanoparticles immobilized in functionalized amphiphilic mesoporous silica

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