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Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1198-1210 doi: 10.1007/s11705-021-2133-z

Abstract: Sulfonic acid functionalized mesoporous silica based solid acid catalysts with different morphology wereThe sulfonic acid functionalized mesoporous silica catalysts of spherical shape and the cube shape were, oleic acid with methanol.The effect of various reaction parameters such as catalyst concentration, acid/alcohol molar ratio, catalystAdditionally, the catalyst was regenerated and reused up to three cycles without any significant loss

Keywords： solid acid catalyst     mesoporous silica     sulfonic acid     biodiesel     esterification     oleic acid    

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Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1447-x

Abstract:

• The optimum SCR activity was realized by tuning the acid pretreatment

Keywords： Air pollution control     Nitrogen oxides     Selective catalytic reduction     Red mud     Solid waste utilization    

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Review of SO42-/MxOy solid superacid catalysts

Yanni WU, Shijun LIAO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 330-343 doi: 10.1007/s11705-009-0208-3

Abstract: solid superacid catalysts, play a vital role in more and more fields such as organic synthesis, fineThis review highlights the recent development of solid superacid catalysts based on , including synthesismethod, characterization of acid sites and acid strength, and applications.

Keywords： solid superacid catalyst     synthesis method     characterization     applications    

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Biodiesel production by the transesterification of cottonseed oil by solid acid catalysts

CHEN He, PENG Baoxiang, WANG Dezheng, WANG Jinfu

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 11-15 doi: 10.1007/s11705-007-0003-y

Abstract: biodiesel) were produced by the transesterification of cottonseed oil with methanol in the presence of solidwas over 90% under the conditions of 230°C, methanol/oil mole ratio of 12:1, reaction time 8 h and catalystamount (catalyst/oil) of 2% (w).The solid acid catalysts showed more better adaptability than solid base catalysts when the oil has highIR spectral analysis of absorbed pyridine on the samples showed that there were Lewis and BrØnsted acid

Keywords： BrØnsted     reaction     presence     cottonseed     biodiesel    

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Reconstruction of Cu–ZnO catalyst by organic acid and deactivation mechanism in liquid-phase hydrogenation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1311-1319 doi: 10.1007/s11705-022-2281-9

Abstract: A reconstructed Cu–ZnO catalyst with improved stability was fabricated by organic acid treatment methodThe reconstruction of the Cu–ZnO catalyst by the organic acid treatment method resulted in a new Cu–ZnOcatalyst with more Cu+ and less ZnO species that leads to deactivation.

Keywords： liquid phase     hydrogenation     Cu–ZnO     deactivation mechanism     1     4-butanediol     diester    

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Nitrogen-doped carbon black supported Pd nanoparticles as an effective catalyst for formic acid electro-oxidation

Na SUN, Minglei WANG, Jinfa CHANG, Junjie GE, Wei XING, Guangjie SHAO

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 310-317 doi: 10.1007/s11708-017-0491-5

Abstract: for the formic acid electro-oxidation (FAEO).The peak current density of the Pd/N-C (high) catalyst is 1.27 and 2.31 times that of the Pd/N-C (low) and homemade Pd/C-H catalyst.The present paper may provide a simple method for preparation of high-performance anode catalyst fordirect formic acid fuel cells (DFAFCs).

Keywords： formic acid electro-oxidation     nitrogen doped     oxidized carbon     nitrogen content    

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Benzenesulfonic acid-grafted UIO-66 with improved hydrophobicity as a stable Brønsted acid catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1389-1398 doi: 10.1007/s11705-022-2285-5

Abstract: Here, we report a facile strategy to introduce the macromolecular acid group to UIO-66 to improve theIn detail, UIO-66−PhSO3H was obtained by grafting benzenesulfonic acid on the surface of the

Keywords： metal−organic frameworks (MOFs)     UIO-66     hydrolysis of cyclohexyl acetate     hydrophobicity     Brønsted acidity    

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ZnZr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 404-414 doi: 10.1007/s11705-022-2215-6

Abstract: hydrogen reaction was proceeded by using the mixture of zinc-zirconium oxide and HZSM-5 as bifunctional catalystCombined with characterizations, it indicated that the Zn and Zr formed a solid solution under specificThe as-formed solid solution not only possesses a high surface area but also provides a large amountAdditionally, the bifunctional catalyst has excellent stabilities that could keep operating without deactivation

Keywords： carbon dioxide     alkylation of benzene     solid solution catalyst     bifunctional catalyst    

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A Pt-Bi bimetallic nanoparticle catalyst for direct electro-oxidation of formic acid in fuel cells

Shu-Hong LI, Yue ZHAO, Jian CHU, Wen-Wei LI, Han-Qing YU, Gang LIU, Yang-Chao TIAN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 388-394 doi: 10.1007/s11783-012-0475-y

Abstract: Direct formic acid fuel cells are a promising portable power-generating device, and the development ofThe electro-catalytic activity of the Pt-Bi/Au electrode for formic acid oxidation increased with theincreasing Bi content, suggesting that it would be possible to achieve an efficient formic acid oxidationTherefore, the Pt-Bi/Au electrode offers a promising catalyst with a high activity for direct oxidationof formic acid in fuel cells.

Keywords： catalyst     electrochemical deposition     formic acid oxidation     fuel cell     gold wire array     microfabrication    

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Mesoporous silicon sulfonic acid as a highly efficient and stable catalyst for the selective hydroamination

Jingbin Wen, Kuiyi You, Minjuan Chen, Jian Jian, Fangfang Zhao, Pingle Liu, Qiuhong Ai, He’an Luo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 654-665 doi: 10.1007/s11705-020-1973-2

Abstract: In this work, a new mesoporous silicon sulfonic acid catalyst derived from silicic acid has been successfullyThe physicochemical properties of mesoporous silicon sulfonic acid catalysts have been systematicallyThe results demonstrate that sulfonic acid groups have been grafted on silicic acid by forming a newThe developed mesoporous silicon sulfonic acid catalyst shows advantages of low cost, superior acid siteIt has been demonstrated that the sulfonic acid groups of the catalyst play an important role in the

Keywords： mesoporous silicon sulfonic acid     catalytic hydroamination     cyclohexene     dicyclohexylamine     vapor phase    

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Visbreaking of heavy petroleum oil catalyzed by SO/ZrO solid super-acid doped with Ni or Sn

JING Ping, LI Qingbiao, HAN Mei, SUN Daohua, JIA Lishan, FANG Weiping

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 186-190 doi: 10.1007/s11705-008-0035-y

Abstract: SO/ZrO solid super-acid catalysts (SZ) doped with Ni or Sn (Ni/SZ, Sn/SZ) were prepared for catalyticvisbreaking reactions were carried out at 240°C and 3–4 MPa for 24 h using a heavy petroleum oil to catalyst

Keywords： thermolysis     Shengli     asphaltene     SO/ZrO     presence    

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Development of solid base catalyst X/Y/MgO/-AlO for optimization of preparation of biodiesel from L.seed

WANG Rui, YANG Song, YIN Shitao, SONG Baoan, BHADURY Pinaki S., XUE Wei, TAO Shuwei, JIA Zhaohui, LIU Da, GAO Liang

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 468-472 doi: 10.1007/s11705-008-0074-4

Abstract: The preparation and regeneration conditions of the identified catalyst X/Y/MgO/-AlO with high catalyticBoth average yield and fatty acid methyl esters (FAME) content reached more than 96.50% under the optimumreaction conditions of the pilot plant tests designed with an oil/methanol molar ratio of 1 : 10, catalyst

Keywords： temperature     presence     addition     catalytic activity     catalyst X/Y/MgO/-AlO    

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Catalytic ozonation of organic compounds in water over the catalyst of RuO

Jianbing WANG,Guoqing WANG,Chunli YANG,Shaoxia YANG,Qing HUANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 615-624 doi: 10.1007/s11783-014-0706-5

Abstract: The results show that RuO /ZrO -CeO was active for the catalytic ozonation of oxalic acid and possessedHowever this does not mean the catalyst was very active because the contribution of catalysis to theozonation of disinfection byproduct precursors with RuO /ZrO -CeO , the reductions of the haloacetic acidThe catalyst significantly promoted the reduction of HAAFPs but insignificantly improved the reduction

Keywords： ozonation     ruthenium     oxalic acid     dimethyl phthalate     disinfection byproduct    

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Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acidcatalyst

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 401-407 doi: 10.1007/s11705-013-1354-1

Abstract: In this study biodiesel was produced from WFO in sub- and super-critical methanol on a zeolite Y solidacid catalyst.experiments by varying the methanol to WFO molar ratio, the reaction temperature, and the amount of catalysttransesterification of WFO with methanol around its critical temperature combined with a zeolite Y as an acidcatalyst is an efficient approach for the production of biodiesel with acceptable yields.

Keywords： biodiesel     methanol     critical temperature     waste frying oil     zeolite Y    

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Formic acid dehydrogenation reaction on high-performance PdAu alloy nanoparticles prepared by the eco-friendly

Frontiers in Energy   Pages 751-762 doi: 10.1007/s11708-023-0895-3

Abstract: Dehydrogenation of formic acid (FA) is considered to be an effective solution for efficient storage andPdAu nanoparticles (5–10 nm) were well-dispersed and supported on the activated carbon to form PdAu solid

Keywords： FA dehydrogenation     face-centred cubic structures     PdAu solid solution alloy nanoparticles     slow synthesis    

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Title Author Date Type Operation

Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Journal Article

Precise regulation of acid pretreatment for red mud SCR catalyst: Targeting on optimizing the acidity

Journal Article

Review of SO42-/MxOy solid superacid catalysts

Yanni WU, Shijun LIAO

Journal Article

Biodiesel production by the transesterification of cottonseed oil by solid acid catalysts

CHEN He, PENG Baoxiang, WANG Dezheng, WANG Jinfu

Journal Article

Reconstruction of Cu–ZnO catalyst by organic acid and deactivation mechanism in liquid-phase hydrogenation

Journal Article

Nitrogen-doped carbon black supported Pd nanoparticles as an effective catalyst for formic acid electro-oxidation

Na SUN, Minglei WANG, Jinfa CHANG, Junjie GE, Wei XING, Guangjie SHAO

Journal Article

Benzenesulfonic acid-grafted UIO-66 with improved hydrophobicity as a stable Brønsted acid catalyst

Journal Article

ZnZr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

Journal Article

A Pt-Bi bimetallic nanoparticle catalyst for direct electro-oxidation of formic acid in fuel cells

Shu-Hong LI, Yue ZHAO, Jian CHU, Wen-Wei LI, Han-Qing YU, Gang LIU, Yang-Chao TIAN

Journal Article

Mesoporous silicon sulfonic acid as a highly efficient and stable catalyst for the selective hydroamination

Jingbin Wen, Kuiyi You, Minjuan Chen, Jian Jian, Fangfang Zhao, Pingle Liu, Qiuhong Ai, He’an Luo

Journal Article

Visbreaking of heavy petroleum oil catalyzed by SO/ZrO solid super-acid doped with Ni or Sn

JING Ping, LI Qingbiao, HAN Mei, SUN Daohua, JIA Lishan, FANG Weiping

Journal Article

Development of solid base catalyst X/Y/MgO/-AlO for optimization of preparation of biodiesel from L.seed

WANG Rui, YANG Song, YIN Shitao, SONG Baoan, BHADURY Pinaki S., XUE Wei, TAO Shuwei, JIA Zhaohui, LIU Da, GAO Liang

Journal Article

Catalytic ozonation of organic compounds in water over the catalyst of RuO

Jianbing WANG,Guoqing WANG,Chunli YANG,Shaoxia YANG,Qing HUANG

Journal Article

Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acidcatalyst

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Journal Article

Formic acid dehydrogenation reaction on high-performance PdAu alloy nanoparticles prepared by the eco-friendly

Journal Article