1
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Saber-Tehrani M. Zinc Complex with Tridentate ONO Schiff base Ligand: the Characterization and Nanostructure Thereof. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s107032842111004x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Hajiashrafi T, Salehi S, Kubicki M, Flanagan KJ, Senge MO. Synthesis, characterization, and crystal structure analysis of Zn(II) and Cd(II) coordination compounds containing 4-((pyridin-4-ylmethylene)amino)phenol Schiff-base ligand. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Hg(II) coordination compounds containing tridentate NNO Schiff-base ligand: synthesis, characterization, and crystal structure analysis. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02650-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Elucidating the Energetics and Effects of Solvents on Cellulose Hydrolysis Using a Polymeric Acid Catalyst. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8101767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A novel polymeric acid catalyst immobilized on a membrane substrate was found to possess superior catalytic activity and selectivity for biomass hydrolysis. The catalyst consists of two polymer chains, a poly(styrene sulfonic acid) (PSSA) polymer chain for catalyzing carbohydrate substrate, and a neighboring poly(vinyl imidazolium chloride) ionic liquid (PIL) polymer chain for promoting the solvation of the PSSA chain to enhance the catalytic activity. In order to elucidate the mechanism and determine the energetics of biomass catalytic processing using this unique catalyst, classical molecular dynamics (MD) coupled with metadynamics (MTD) simulations were conducted to determine the free energy surfaces (FES) of cellulose hydrolysis. The critical role that PIL plays in the catalytic conversion is elucidated. The solvation free energy and the interactions between PSSA, PIL, and cellulose chains are found to be significantly affected by the solvent.
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5
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Vu A, Wickramasinghe SR, Qian X. Polymeric Solid Acid Catalysts for Lignocellulosic Biomass Fractionation. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05286] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Antonini L, Garzoli S, Ricci A, Troiani A, Salvitti C, Giacomello P, Ragno R, Patsilinakos A, Di Rienzo B, Pepi F. Ab-initio and experimental study of pentose sugar dehydration mechanism in the gas phase. Carbohydr Res 2018; 458-459:19-28. [PMID: 29428483 DOI: 10.1016/j.carres.2018.01.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/26/2022]
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7
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Song G, Wickramasinghe SR, Qian X. The Effects of Salt Type and Salt Concentration on the Performance of Magnetically Activated Nanofiltration Membranes. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04278] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guanghui Song
- Ralph
E Martin Department of Chemical Engineering, and ‡Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - S. Ranil Wickramasinghe
- Ralph
E Martin Department of Chemical Engineering, and ‡Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Xianghong Qian
- Ralph
E Martin Department of Chemical Engineering, and ‡Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
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8
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Zhang X, Wilson K, Lee AF. Heterogeneously Catalyzed Hydrothermal Processing of C 5-C 6 Sugars. Chem Rev 2016; 116:12328-12368. [PMID: 27680093 DOI: 10.1021/acs.chemrev.6b00311] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Biomass has been long exploited as an anthropogenic energy source; however, the 21st century challenges of energy security and climate change are driving resurgence in its utilization both as a renewable alternative to fossil fuels and as a sustainable carbon feedstock for chemicals production. Deconstruction of cellulose and hemicellulose carbohydrate polymers into their constituent C5 and C6 sugars, and subsequent heterogeneously catalyzed transformations, offer the promise of unlocking diverse oxygenates such as furfural, 5-hydroxymethylfurfural, xylitol, sorbitol, mannitol, and gluconic acid as biorefinery platform chemicals. Here, we review recent advances in the design and development of catalysts and processes for C5-C6 sugar reforming into chemical intermediates and products, and highlight the challenges of aqueous phase operation and catalyst evaluation, in addition to process considerations such as solvent and reactor selection.
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Affiliation(s)
- Xingguang Zhang
- European Bioenergy Research Institute, Aston University , Birmingham B4 7ET, United Kingdom
| | - Karen Wilson
- European Bioenergy Research Institute, Aston University , Birmingham B4 7ET, United Kingdom
| | - Adam F Lee
- European Bioenergy Research Institute, Aston University , Birmingham B4 7ET, United Kingdom
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9
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Radicalization and Radical Catalysis of Biomass Sugars: Insights from First-principles Studies. Sci Rep 2016; 6:29711. [PMID: 27405843 PMCID: PMC4942814 DOI: 10.1038/srep29711] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 06/21/2016] [Indexed: 12/28/2022] Open
Abstract
Ab initio and density functional calculations are conducted to investigate the radicalization processes and radical catalysis of biomass sugars. Structural alterations due to radicalization generally focus on the radicalized sites, and radicalization affects H-bonds in D-fructofuranose more than in D-glucopyranose, potentially with outcome of new H-bonds. Performances of different functionals and basis sets are evaluated for all radicalization processes, and enthalpy changes and Gibbs free energies for these processes are presented with high accuracy, which can be referenced for subsequent experimental and theoretical studies. It shows that radicalization can be utilized for direct transformation of biomass sugars, and for each sugar, C rather than O sites are always preferred for radicalization, thus suggesting the possibility to activate C-H bonds of biomass sugars. Radical catalysis is further combined with Brønsted acids, and it clearly states that functionalization fundamentally regulates the catalytic effects of biomass sugars. In presence of explicit water molecules, functionalization significantly affects the activation barriers and reaction energies of protonation rather than dehydration steps. Tertiary butyl and phenyl groups with large steric hindrances or hydroxyl and amino groups resulting in high stabilities for protonation products drive the protonation steps to occur facilely at ambient conditions.
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10
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Yang G, Zhu C, Zhou L. Deprotonation and acidity characterization of biomass sugars: a first-principles study. J Mol Model 2016; 22:104. [DOI: 10.1007/s00894-016-2972-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 03/24/2016] [Indexed: 11/24/2022]
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11
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Pepi F, Ricci A, Garzoli S, Troiani A, Salvitti C, Di Rienzo B, Giacomello P. A mass spectrometric study of the acid-catalysed d-fructose dehydration in the gas phase. Carbohydr Res 2015; 413:145-50. [DOI: 10.1016/j.carres.2015.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/27/2015] [Accepted: 05/29/2015] [Indexed: 10/23/2022]
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12
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Bhattacharyya S, Wategaonkar S. ZEKE Photoelectron Spectroscopy of p-Fluorophenol···H2S/H2O Complexes and Dissociation Energy Measurement Using the Birge–Sponer Extrapolation Method. J Phys Chem A 2014; 118:9386-96. [DOI: 10.1021/jp505393p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Surjendu Bhattacharyya
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India
| | - Sanjay Wategaonkar
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India
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13
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Mohd Shafie Z, Yu Y, Wu H. Insights into the Primary Decomposition Mechanism of Cellobiose under Hydrothermal Conditions. Ind Eng Chem Res 2014. [DOI: 10.1021/ie5027309] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zainun Mohd Shafie
- School of Chemical and Petroleum
Engineering, Curtin University, GPO Box U1987, Perth, Western
Australia 6845, Australia
| | - Yun Yu
- School of Chemical and Petroleum
Engineering, Curtin University, GPO Box U1987, Perth, Western
Australia 6845, Australia
| | - Hongwei Wu
- School of Chemical and Petroleum
Engineering, Curtin University, GPO Box U1987, Perth, Western
Australia 6845, Australia
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14
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Qian X, Liu D. Free energy landscape for glucose condensation and dehydration reactions in dimethyl sulfoxide and the effects of solvent. Carbohydr Res 2014; 388:50-60. [DOI: 10.1016/j.carres.2014.02.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/30/2014] [Accepted: 02/07/2014] [Indexed: 10/25/2022]
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15
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Qian X. Free Energy Surface for Brønsted Acid-Catalyzed Glucose Ring-Opening in Aqueous Solution. J Phys Chem B 2013; 117:11460-5. [DOI: 10.1021/jp402739q] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xianghong Qian
- Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
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16
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Ricci A, Piccolella S, Pepi F, Garzoli S, Giacomello P. The mechanism of 2-furaldehyde formation from D-xylose dehydration in the gas phase. A tandem mass spectrometric study. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2013; 24:1082-1089. [PMID: 23690250 DOI: 10.1007/s13361-013-0642-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 04/02/2013] [Accepted: 04/05/2013] [Indexed: 06/02/2023]
Abstract
The mechanism of reactions occurring in solution can be investigated also in the gas phase by suited mass spectrometric techniques, which allow to highlight fundamental mechanistic features independent of the influence of the medium and to clarifying controversial hypotheses proposed in solution studies. In this work, we report a gas-phase study performed by electrospray triple stage quadrupole mass spectrometry (ESI-TSQ/MS) on the dehydration of D-xylose, leading mainly to the formation of 2-furaldehyde (2-FA). It is generally known in carbohydrate chemistry that the thermal acid catalyzed dehydration of pentoses leads to the formation of 2-FA, but several aspects on the solution-phase mechanism are controversial. Here, gaseous reactant ions corresponding to protonated xylose molecules obtained from ESI of a solution containing D-xylose and ammonium acetate as protonating reagent were allowed to undergo collisionally activated decomposition (CAD) into the triple stage quadrupole analyzer. The product ion mass spectra of protonated xylose are characterized by the presence of ionic intermediates arising from xylose dehydration, which were structurally characterized by their fragmentation patterns. As expected, the xylose triple dehydration leads to the formation of the ion at m/z 97, corresponding to protonated 2-FA. On the basis of mass spectrometric evidences, we demonstrated that in the gas phase, the formation of 2-FA involves protonation at the OH group bound to the C1 atom of the sugar, the first ionic intermediate being characterized by a cyclic structure. Finally, energy resolved product ion mass spectra allowed to obtain information on the energetic features of the D-xylose→2-FA conversion. ᅟ
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Affiliation(s)
- Andreina Ricci
- Department of Mathematics and Physics, Second University of Naples, via Vivaldi, 43, 81100, Caserta, Italy.
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17
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Qian X, Lei J, Wickramasinghe SR. Novel polymeric solid acid catalysts for cellulose hydrolysis. RSC Adv 2013. [DOI: 10.1039/c3ra43987a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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19
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Agarwal V, Dauenhauer PJ, Huber GW, Auerbach SM. Ab Initio Dynamics of Cellulose Pyrolysis: Nascent Decomposition Pathways at 327 and 600 °C. J Am Chem Soc 2012; 134:14958-72. [DOI: 10.1021/ja305135u] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vishal Agarwal
- Department
of Chemical Engineering and ‡Department of Chemistry, University of Massachusetts, Amherst, Massachusetts
01003, United States
| | - Paul J. Dauenhauer
- Department
of Chemical Engineering and ‡Department of Chemistry, University of Massachusetts, Amherst, Massachusetts
01003, United States
| | - George W. Huber
- Department
of Chemical Engineering and ‡Department of Chemistry, University of Massachusetts, Amherst, Massachusetts
01003, United States
| | - Scott M. Auerbach
- Department
of Chemical Engineering and ‡Department of Chemistry, University of Massachusetts, Amherst, Massachusetts
01003, United States
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20
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Qian X, Wei X. Glucose Isomerization to Fructose from ab Initio Molecular Dynamics Simulations. J Phys Chem B 2012; 116:10898-904. [DOI: 10.1021/jp303842g] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xianghong Qian
- Ralph E. Martin Department of Chemical
Engineering, University of Arkansas, Fayetteville,
Arkansas 72701,
United States
| | - Xingfei Wei
- Ralph E. Martin Department of Chemical
Engineering, University of Arkansas, Fayetteville,
Arkansas 72701,
United States
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21
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Qian X. Mechanisms and Energetics for Brønsted Acid-Catalyzed Glucose Condensation, Dehydration and Isomerization Reactions. Top Catal 2012. [DOI: 10.1007/s11244-012-9790-6] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Assary RS, Kim T, Low JJ, Greeley J, Curtiss LA. Glucose and fructose to platform chemicals: understanding the thermodynamic landscapes of acid-catalysed reactions using high-level ab initio methods. Phys Chem Chem Phys 2012; 14:16603-11. [DOI: 10.1039/c2cp41842h] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Qian X. Mechanisms and Energetics for Acid Catalyzed β-d-Glucose Conversion to 5-Hydroxymethylfurfurl. J Phys Chem A 2011; 115:11740-8. [DOI: 10.1021/jp2041982] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xianghong Qian
- Department of Chemical Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
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