101
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Wan J, Yang P, Guo X, Zhou R. Investigation on the structure-activity relationship of Nb2O5 promoting CeO2-CrOx-Nb2O5 catalysts for 1,2-dichloroethane elimination. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.03.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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102
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Leal GF, Lima S, Graça I, Carrer H, Barrett DH, Teixeira-Neto E, Curvelo AAS, Rodella CB, Rinaldi R. Design of Nickel Supported on Water-Tolerant Nb 2O 5 Catalysts for the Hydrotreating of Lignin Streams Obtained from Lignin-First Biorefining. iScience 2019; 15:467-488. [PMID: 31125909 PMCID: PMC6532020 DOI: 10.1016/j.isci.2019.05.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/29/2019] [Accepted: 05/05/2019] [Indexed: 11/06/2022] Open
Abstract
In biomass conversion, Nb2O5 has attracted increasing attention as a catalyst support presenting water-tolerant Lewis acid sites. Herein, we address the design of Ni/Nb2O5 catalysts for hydrotreating of lignin to hydrocarbons. To optimize the balance between acidic and hydrogenating properties, the catalysts were first evaluated in the hydrotreating of diphenyl ether. The best catalyst candidate was further explored in the conversion of lignin oil obtained by catalytic upstream biorefining of poplar. As primary products, cycloalkanes were obtained, demonstrating the potential of Ni/Nb2O5 catalysts for the lignin-to-fuels route. However, the Lewis acidity of Nb2O5 also catalyzes coke formation via lignin species condensation. Thereby, an acidity threshold should be found so that dehydration reactions essential to the hydrotreatment are not affected, but the condensation of lignin species prevented. This article provides a critical "beginning-to-end" analysis of aspects crucial to the catalyst design to produce lignin biofuels.
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Affiliation(s)
- Glauco F Leal
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK; Department of Physical Chemistry, Institute of Chemistry of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, São Paulo 13566-590, Brazil; Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | - Sérgio Lima
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Inês Graça
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Heloise Carrer
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | - Dean H Barrett
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil; School of Chemistry, University of the Witwatersrand, Johannesburg, South Africa
| | - Erico Teixeira-Neto
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | - Antonio Aprigio S Curvelo
- Department of Physical Chemistry, Institute of Chemistry of São Carlos, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, São Paulo 13566-590, Brazil
| | - Cristiane B Rodella
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
| | - Roberto Rinaldi
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
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103
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Candu N, El Fergani M, Verziu M, Cojocaru B, Jurca B, Apostol N, Teodorescu C, Parvulescu VI, Coman SM. Efficient glucose dehydration to HMF onto Nb-BEA catalysts. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.08.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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104
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105
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Gnanakumar ES, Chandran N, Kozhevnikov IV, Grau-Atienza A, Ramos Fernández EV, Sepulveda-Escribano A, Shiju NR. Highly efficient nickel-niobia composite catalysts for hydrogenation of CO2 to methane. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.08.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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106
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Riente P, Noël T. Application of metal oxide semiconductors in light-driven organic transformations. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01170f] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, we provide an up-to-date overview of metal oxide semiconductors (MOS) as versatile and inexpensive photocatalysts to enable light-driven organic transformations.
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Affiliation(s)
- Paola Riente
- Micro Flow Chemistry and Synthetic Methodology
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
| | - Timothy Noël
- Micro Flow Chemistry and Synthetic Methodology
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
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107
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Kong W, Liu Z, Han J, Xia L, Wang Y, Liu Q, Shi X, Wu Y, Xu Y, Sun X. Ambient electrochemical N2-to-NH3 fixation enabled by Nb2O5 nanowire array. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01049h] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Nb2O5 nanowire array on carbon cloth (Nb2O5/CC) is efficient for ambient electrocatalytic N2-to-NH3 fixation with excellent selectivity in 0.1 M Na2SO4.
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108
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De Carvalho GSG, Chagas LH, Fonseca CG, de Castro PP, Sant’Ana AC, Leitão AA, Amarante GW. Nb 2O 5 supported on mixed oxides catalyzed oxidative and photochemical conversion of anilines to azoxybenzenes. NEW J CHEM 2019. [DOI: 10.1039/c9nj00625g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supported niobium oxide as an efficient heterogeneous catalyst for chemoselective preparation of azoxybenzenes from anilines.
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Affiliation(s)
| | | | - Carla Grijó Fonseca
- Chemistry Department
- Federal University of Juiz de Fora
- Cidade Universitária
- Juiz de Fora
- Brazil
| | - Pedro Pôssa de Castro
- Chemistry Department
- Federal University of Juiz de Fora
- Cidade Universitária
- Juiz de Fora
- Brazil
| | - Antônio Carlos Sant’Ana
- Chemistry Department
- Federal University of Juiz de Fora
- Cidade Universitária
- Juiz de Fora
- Brazil
| | - Alexandre Amaral Leitão
- Chemistry Department
- Federal University of Juiz de Fora
- Cidade Universitária
- Juiz de Fora
- Brazil
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109
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da Cunha TT, Silva IF, do Pim WD, Binatti I, do Nascimento GM, Stumpf HO, Santana GC, Oliveira LCA, Pereira CLM. Multifunctional Nb–Cu nanostructured materials as potential adsorbents and oxidation catalysts for real wastewater decontamination. NEW J CHEM 2019. [DOI: 10.1039/c9nj01427f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid oxidation catalysts and adsorbent materials containing niobium(v)–copper(ii) for the decontamination of real wastewater containing organic pollutants are reported herein.
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Affiliation(s)
- Tamyris T. da Cunha
- Departamento de Química
- ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Ingrid F. Silva
- Departamento de Química
- ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Walace D. do Pim
- Departamento de Química
- Centro Federal de Educação Tecnológica de Minas Gerais
- Belo Horizonte
- Brazil
| | - Ildefonso Binatti
- Departamento de Química
- Centro Federal de Educação Tecnológica de Minas Gerais
- Belo Horizonte
- Brazil
| | | | - Humberto O. Stumpf
- Departamento de Química
- ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Gilcinéa C. Santana
- Escola de Veterinária
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Luiz C. A. Oliveira
- Departamento de Química
- ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
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110
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Siddiki SMAH, Rashed MN, Ali MA, Toyao T, Hirunsit P, Ehara M, Shimizu K. Lewis Acid Catalysis of Nb
2
O
5
for Reactions of Carboxylic Acid Derivatives in the Presence of Basic Inhibitors. ChemCatChem 2018. [DOI: 10.1002/cctc.201801239] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Md. Ayub Ali
- Department of Chemistry Bangladesh University of Engineering and Technology (BUET) Dhaka- 1000 Bangladesh
| | - Takashi Toyao
- Institute for Catalysis Hokkaido University Sapporo 001-0021 Japan
- Elements Strategy Initiative for Catalysts and Batteries Kyoto University Kyoto 615-8520 Japan
| | - Pussana Hirunsit
- National Nanotechnology Center National Science and Technology Development Agency Pathum Thani 12120 Thailand
| | - Masahiro Ehara
- Elements Strategy Initiative for Catalysts and Batteries Kyoto University Kyoto 615-8520 Japan
- Institute for Molecular Science Aichi 444-8585 Japan
| | - Ken‐ichi Shimizu
- Institute for Catalysis Hokkaido University Sapporo 001-0021 Japan
- Elements Strategy Initiative for Catalysts and Batteries Kyoto University Kyoto 615-8520 Japan
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111
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Kostetskyy P, Nolan CM, Dixit M, Mpourmpakis G. Understanding Alkane Dehydrogenation through Alcohol Dehydration on γ-Al 2O 3. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04392] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pavlo Kostetskyy
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Carly M. Nolan
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Mudit Dixit
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Giannis Mpourmpakis
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
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112
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Moreno-Marrodan C, Barbaro P, Caporali S, Bossola F. Low-Temperature Continuous-Flow Dehydration of Xylose Over Water-Tolerant Niobia-Titania Heterogeneous Catalysts. CHEMSUSCHEM 2018; 11:3649-3660. [PMID: 30106509 DOI: 10.1002/cssc.201801414] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/27/2018] [Indexed: 06/08/2023]
Abstract
The sustainable conversion of vegetable biomass-derived feeds to useful chemicals requires innovative routes meeting environmental and economical criteria. The approach herein pursued is the synthesis of water-tolerant, unconventional solid acid monolithic catalysts based on a mixed niobia-titania skeleton building up a hierarchical open-cell network of meso- and macropores, and tailored for use under continuous-flow conditions. The materials were characterized by spectroscopic, microscopy, and diffraction techniques, showing a reproducible isotropic structure and an increasing Lewis/Brønsted acid sites ratio with increasing Nb content. The catalytic dehydration reaction of xylose to furfural was investigated as a representative application. The efficiency of the catalyst was found to be dramatically affected by the niobia content in the titania lattice. The presence of as low as 2 wt % niobium resulted in the highest furfural yield at 140 °C under continuous-flow conditions, by using H2 O/γ-valerolactone as a safe monophasic solvent system. The interception of a transient 2,5-anhydroxylose species suggested the dehydration process occurs via a cyclic intermediates mechanism. The catalytic activity and the formation of the anhydro intermediate were related to the Lewis acid sites (LAS)/Brønsted acid sites (BAS) ratio and indicated a significant contribution of xylose-xylulose isomerization. No significant catalyst deactivation was observed over 4 days usage.
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Affiliation(s)
- Carmen Moreno-Marrodan
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Pierluigi Barbaro
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Stefano Caporali
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, Via Giusti 9, 50121, Firenze, Italy
- Consiglio Nazionale delle Ricerche, Istituto dei Sistemi Complessi, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Filippo Bossola
- Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Molecolari, Via Golgi 19, 20133, Milano, Italy
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113
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Mao J, Tao F, Zhang Z, Zhou R. Promoting effect of Nb doping on catalytic performance for deep oxidation of 1, 2-dichloroethane over (Ce,Cr) xO 2-Nb 2O 5 catalysts. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:27413-27422. [PMID: 30039487 DOI: 10.1007/s11356-018-2709-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
A series of Nb-doped (Ce,Cr)xO2-Nb2O5 mixed oxides with varying (Ce,Cr)xO2/Nb2O5 mass ratio were prepared by a co-precipitation method and evaluated for the catalytic performance of eliminating 1,2-dichloroethane (DCE). The results indicate that there exists a strong synergistic effect between acid sites and redox species in (Ce,Cr)xO2-Nb2O5 improving the catalytic activity for DCE oxidation. Appropriate Nb doping could promote the high dispersion and the interaction of metal oxides in the (Ce,Cr)xO2-Nb2O5 catalysts, resulting in the formation of more Cr6+ species with strong oxidizing ability and excellent mobility of oxygen species from bulk to surface to create more active sites for DCE deep oxidation. The (Ce,Cr)xO2-Nb2O5 catalysts with (Ce,Cr)xO2/Nb2O5 ratios of 2/1~1/2 exhibit excellent catalytic activity and durability for DCE degradation in dry air as well as benzene or water vapor, and less chlorinated byproduct is produced during the degradation of DCE.
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Affiliation(s)
- Jiaqi Mao
- Institute of Catalysis, Zhejiang University, Hangzhou, 310028, People's Republic of China
| | - Fei Tao
- Institute of Catalysis, Zhejiang University, Hangzhou, 310028, People's Republic of China
| | - Zibo Zhang
- Institute of Catalysis, Zhejiang University, Hangzhou, 310028, People's Republic of China
| | - Renxian Zhou
- Institute of Catalysis, Zhejiang University, Hangzhou, 310028, People's Republic of China.
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114
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Capacitance response in an aqueous electrolyte of Nb2O5 nanochannel layers anodically grown in pure molten o-H3PO4. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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115
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Zheng J, Lyu Y, Xie C, Wang R, Tao L, Wu H, Zhou H, Jiang S, Wang S. Defect-Enhanced Charge Separation and Transfer within Protection Layer/Semiconductor Structure of Photoanodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801773. [PMID: 29920801 DOI: 10.1002/adma.201801773] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/18/2018] [Indexed: 06/08/2023]
Abstract
Silicon (Si) requires a protection layer to maintain stable and long-time photoanodic reaction. However, poor charge separation and transfer are key constraint factors in protection layer/Si photoanodes that reduce their water-splitting efficiency. Here, a simultaneous enhancement of charge separation and transfer in Nb-doped NiOx /Ni/black-Si photoanodes induced by plasma treatment is reported. The optimized photoanodes yield the highest charge-separation efficiency (ηsep ) of ≈81% at 1.23 V versus reversible hydrogen electrode, corresponding to the photocurrent density of ≈29.1 mA cm-2 . On the basis of detailed characterizations, the concentration and species of oxygen defects in the NiOx -based layer are adjusted by synergistic effect of Nb doping and plasma treatment, which are the dominating factors for forming suitable band structure and providing a favorable hole-migration channel. This work elucidates the important role of oxygen defects on charge separation and transfer in the protection layer/Si-based photoelectrochemical systems and is encouraging for application of this synergistic strategy to other candidate photoanodes.
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Affiliation(s)
- Jianyun Zheng
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, China
| | - Yanhong Lyu
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, China
| | - Chao Xie
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, China
| | - Ruilun Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, China
| | - Li Tao
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, China
| | - Haibo Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Huaijuan Zhou
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Sanping Jiang
- Fuels and Energy Technology Institute and Department of Chemical Engineering, Curtin University, Perth, Western Australia, 6102, Australia
| | - Shuangyin Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, Hunan, China
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116
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Jaramillo-Páez C, Sánchez-Fernández F, Navío J, Hidalgo M. Photo-induced processes on Nb 2 O 5 synthesized by different procedures. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.03.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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117
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Verziu M, Serano M, Jurca B, Parvulescu VI, Coman SM, Scholz G, Kemnitz E. Catalytic features of Nb-based nanoscopic inorganic fluorides for an efficient one-pot conversion of cellulose to lactic acid. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.02.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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118
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Ma W, Yuan H, Wang H, Zhou Q, Kong K, Li D, Yao Y, Hou Z. Identifying Catalytically Active Mononuclear Peroxoniobate Anion of Ionic Liquids in the Epoxidation of Olefins. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04443] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenbao Ma
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Haiyang Yuan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Haifeng Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Qingqing Zhou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Kang Kong
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Difan Li
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Yefeng Yao
- Physics Department and Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Zhenshan Hou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
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119
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Yada A, Murayama T, Hirata J, Nakashima T, Tamura M, Kon Y, Ueda W. W-Ti-O Mixed Metal Oxide Catalyzed Dehydrative Cross-etherification of Alcohols. CHEM LETT 2018. [DOI: 10.1246/cl.171202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akira Yada
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Toru Murayama
- Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1-F203 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Institute for Catalysis, Hokkaido University, N21W10, Sapporo, Hokkaido 001-0021, Japan
| | - Jun Hirata
- Institute for Catalysis, Hokkaido University, N21W10, Sapporo, Hokkaido 001-0021, Japan
| | - Takuya Nakashima
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Masanori Tamura
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yoshihiro Kon
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Institute for Catalysis, Hokkaido University, N21W10, Sapporo, Hokkaido 001-0021, Japan
| | - Wataru Ueda
- Institute for Catalysis, Hokkaido University, N21W10, Sapporo, Hokkaido 001-0021, Japan
- Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University, 3-27 Rokkakubashi, Kanagawa-ku, Yokohama, Kanagawa 221-8686, Japan
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120
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Du Y, Zhang S, Wang J, Wu J, Dai H. Nb 2O 5 nanowires in-situ grown on carbon fiber: A high-efficiency material for the photocatalytic reduction of Cr(VI). J Environ Sci (China) 2018; 66:358-367. [PMID: 29628105 DOI: 10.1016/j.jes.2017.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 04/20/2017] [Indexed: 06/08/2023]
Abstract
Niobium oxide nanowire-deposited carbon fiber (CF) samples were prepared using a hydrothermal method with amorphous Nb2O5·nH2O as precursor. The physical properties of the samples were characterized by means of numerous techniques, including X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected-area electron diffraction (SAED), UV-visible spectroscopy (UV-vis), N2 adsorption-desorption, Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy. The efficiency for the removal of Cr(VI) was determined. Parameters such as pH value and initial Cr(VI) concentration could influence the Cr(VI) removal efficiency or adsorption capacity of the Nb2O5/carbon fiber sample obtained after hydrothermal treatment at 160°C for 14hr. The maximal Cr(VI) adsorption capacity of the Nb2O5 nanowire/CF sample was 115mg/g. This Nb2O5/CF sample also showed excellent photocatalytic activity and stability for the reduction of Cr(VI) under UV-light irradiation: the Cr(VI) removal efficiency reached 99.9% after UV-light irradiation for 1hr and there was no significant decrease in photocatalytic performance after the use of the sample for 10 repeated cycles. Such excellent Cr(VI) adsorption capacity and photocatalytic performance was related to its high surface area, abundant surface hydroxyl groups, and good UV-light absorption ability.
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Affiliation(s)
- Yucheng Du
- Key Lab of Advanced Functional Materials, Ministry of Education, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Shihao Zhang
- Key Lab of Advanced Functional Materials, Ministry of Education, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
| | - Jinshu Wang
- Key Lab of Advanced Functional Materials, Ministry of Education, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
| | - Junshu Wu
- Key Lab of Advanced Functional Materials, Ministry of Education, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
| | - Hongxing Dai
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Laboratory of Catalysis Chemistry and Nanoscience, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China.
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122
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Strong metal-support interaction effect of Pt/Nb2O5 catalysts on aqueous phase hydrodeoxygenation of 1,6-hexanediol. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.03.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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123
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Joncour R, Ferreira A, Duguet N, Lemaire M. Preparation of para-Aminophenol from Nitrobenzene through Bamberger Rearrangement Using a Mixture of Heterogeneous and Homogeneous Acid Catalysts. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.7b00354] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Roxan Joncour
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE- Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Amadéo Ferreira
- Minakem SAS, 145 chemin des Lilas, 59310 Beuvry-la-Forêt, France
| | - Nicolas Duguet
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE- Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Marc Lemaire
- Univ Lyon, Université Claude Bernard Lyon1, CNRS, INSA-Lyon, CPE- Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, (ICBMS), UMR 5246, Equipe CAtalyse, SYnthèse et ENvironnement (CASYEN), 43 boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France
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124
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Sahoo P, Gawali SS, Gunanathan C. Iron-Catalyzed Selective Etherification and Transetherification Reactions Using Alcohols. ACS OMEGA 2018; 3:124-136. [PMID: 31457881 PMCID: PMC6641510 DOI: 10.1021/acsomega.7b01705] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/19/2017] [Indexed: 06/10/2023]
Abstract
Simple and readily available iron(III) triflate turned out to be a cheap, environmentally benign, and efficient catalyst for the direct etherification of alcohols. The use of ammonium chloride as an additive (5 mol %, 1 equiv relative to catalyst) suppressed the side reactions completely and ensured the selective ether formation even on challenging substrates containing electron-donating substituents. This method allows the selective synthesis of symmetrical ethers from benzylic secondary alcohols and unsymmetrical ethers directly from secondary and primary alcohols. Moreover, transetherification of symmetrical ethers using primary alcohols is attained. The reaction progress of symmetrical ether and unsymmetrical ether formation followed zero-order and first-order kinetics, respectively. Electron paramagnetic resonance (EPR) measurements of the reaction mixture and simple iron(III) triflate clearly indicated that oxidation state of the metal center remains same throughout the catalysis. Mechanistic studies confirmed that the unsymmetrical ether formation occurs via the in situ formed symmetrical ethers.
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125
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Influence of the support on the catalytic properties of Keggin type heteropolyacids supported on niobia according to two different methodologies: evaluation of isopropanol dehydration and Friedel–Crafts alkylation reaction. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1349-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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126
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Wang B, Zhao Y, Banis MN, Sun Q, Adair KR, Li R, Sham TK, Sun X. Atomic Layer Deposition of Lithium Niobium Oxides as Potential Solid-State Electrolytes for Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1654-1661. [PMID: 29219291 DOI: 10.1021/acsami.7b13467] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The development of solid-state electrolytes by atomic layer deposition (ALD) holds unparalleled advantages toward the fabrication of next-generation solid-state batteries. Lithium niobium oxide (LNO) thin films with well-controlled film thickness and composition were successfully deposited by ALD at a deposition temperature of 235 °C using lithium tert-butoxide and niobium ethoxide as Li and Nb sources, respectively. Furthermore, incorporation of higher Li content was achieved by increasing the Li-to-Nb subcycle ratio. In addition, detailed X-ray absorption near edge structure studies of the amorphous LNO thin films on the Nb L-edge revealed the existence of Nb as Nb5+ in a distorted octahedral structure. The octahedrons in niobium oxide thin films experienced severe distortions, which could be gradually alleviated upon the introduction of Li atoms into the thin films. The ionic conductivities of the as-prepared LNO thin films were also measured, with the highest value achieving 6.39 × 10-8 S cm-1 at 303 K with an activation energy of 0.62 eV.
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Affiliation(s)
- Biqiong Wang
- Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada
- Department of Chemistry, University of Western Ontario , London, Ontario N6A 5B7, Canada
| | - Yang Zhao
- Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada
| | - Mohammad Norouzi Banis
- Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada
| | - Qian Sun
- Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada
| | - Keegan R Adair
- Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada
| | - Ruying Li
- Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario , London, Ontario N6A 5B7, Canada
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, University of Western Ontario , London, Ontario N6A 5B9, Canada
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127
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Crabbe BW, Kuehm OP, Bennett JC, Hallett-Tapley GL. Light-activated Ullmann homocoupling of aryl halides catalyzed using gold nanoparticle-functionalized potassium niobium oxides. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00996a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Lamellar, or layered, potassium niobium oxide perovskites are a class of underdeveloped semiconductors in organic photocatalysis that offer the inherent advantages of larger particle size and ease of recoverability as compared to traditional semiconductor materials.
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Affiliation(s)
- Bry W. Crabbe
- Department of Chemistry
- St. Francis Xavier University
- Antigonish
- Canada
| | - Oliver P. Kuehm
- Department of Chemistry
- St. Francis Xavier University
- Antigonish
- Canada
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128
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Liu F, Huang K, Zheng A, Xiao FS, Dai S. Hydrophobic Solid Acids and Their Catalytic Applications in Green and Sustainable Chemistry. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03369] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fujian Liu
- National
Engineering Research Center of Chemical Fertilizer Catalyst (NERC−CFC),
School of Chemical Engineering, Fuzhou University, Gongye Road No. 523, Fuzhou 350002, P. R. China
| | - Kuan Huang
- Key Laboratory
of Poyang Lake Environment and Resource Utilization of Ministry of
Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Anmin Zheng
- National
Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic
Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Feng-Shou Xiao
- Department
of Chemistry, Zhejiang University, Hangzhou, 310028, China
| | - Sheng Dai
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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129
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Nakajima K, Hirata J, Kim M, Gupta NK, Murayama T, Yoshida A, Hiyoshi N, Fukuoka A, Ueda W. Facile Formation of Lactic Acid from a Triose Sugar in Water over Niobium Oxide with a Deformed Orthorhombic Phase. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03003] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kiyotaka Nakajima
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan
- Advanced
Low Carbon Technology Research and Development (ALCA) Program, Japan Science and Technology (JST) Agency, 4-1-8 Honcho, Kawaguchi 332-0012, Japan
| | - Jun Hirata
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan
| | - Minjune Kim
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan
| | - Navneet Kumar Gupta
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan
- Central Institute of Mining and Fuel Research (CIMFR), Digwadih Campus, PO FRI 828108 Dhanbad, Jharkhand, India
| | - Toru Murayama
- Research
Center for Gold Chemistry, Tokyo Metropolitan University, 1-1-203,
Minami-Osawa, Hachioji, 192-0397, Japan
| | - Akihiro Yoshida
- Department
of Material and Life Chemistry, Faculty of Engineering, Kanagawa University, 3-27, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Norihito Hiyoshi
- Research
Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), 4-2-1 Nigatake, Miyagino, Sendai 983-8551 Japan
| | - Atsushi Fukuoka
- Institute
for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan
| | - Wataru Ueda
- Department
of Material and Life Chemistry, Faculty of Engineering, Kanagawa University, 3-27, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
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130
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Catalytic activity of niobium phosphate in the benzylation of anisole with styrene, benzyl alcohol and benzyl chloride. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1259-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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131
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Abood MK, Wahid MHA, Salim ET, Saimon JA. Niobium Pentoxide thin films employ simple colloidal suspension at low preparation temperature. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201716201058] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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132
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Guan W, Chen X, Jin S, Li C, Tsang CW, Liang C. Highly Stable Nb2O5–Al2O3 Composites Supported Pt Catalysts for Hydrodeoxygenation of Diphenyl Ether. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03736] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weixiang Guan
- Laboratory of Advanced Materials and
Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Xiao Chen
- Laboratory of Advanced Materials and
Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Shaohua Jin
- Laboratory of Advanced Materials and
Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Chuang Li
- Laboratory of Advanced Materials and
Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Chi-Wing Tsang
- Laboratory of Advanced Materials and
Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Changhai Liang
- Laboratory of Advanced Materials and
Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
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133
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Shao X, Xin W, Yin X. Hydrothermal synthesis of ZnO quantum dot/KNb 3O 8 nanosheet photocatalysts for reducing carbon dioxide to methanol. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:2264-2270. [PMID: 29181283 PMCID: PMC5687015 DOI: 10.3762/bjnano.8.226] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 09/27/2017] [Indexed: 05/27/2023]
Abstract
ZnO quantum dots and KNb3O8 nanosheets were synthesized by a two-step hydrothermal method for the photocatalytic reduction of CO2 to methanol where isopropanol is simultaneously oxidized to acetone . The as-prepared photocatalysts were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and UV-vis absorption spectroscopy (UV-vis). The photocatalytic activity of the materials was evaluated by formation rate of methanol under UV light irradiation at ambient temperature and pressure. The methanol formation rate of pure KNb3O8 nanosheets was found to be 1257.21 μmol/g/h, and after deposition of 2 wt % ZnO quantum dots on the surface of KNb3O8 nanosheets, the methanol production rate was found to increase to 1539.77 μmol/g/h. Thus, the ZnO quantum dots obviously prompted separation of charge carriers, which was explained by a proposed mechanism for this photocatalytic reaction.
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Affiliation(s)
- Xiao Shao
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China
| | - Weiyue Xin
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaohong Yin
- School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China
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134
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Mitta SB, Dugasani SR, Jung SG, Vellampatti S, Park T, Park SH. Electromagnetic and optical characteristics of Nb 5+-doped double-crossover and salmon DNA thin films. NANOTECHNOLOGY 2017; 28:405703. [PMID: 28820741 DOI: 10.1088/1361-6528/aa871d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report the fabrication and physical characteristics of niobium ion (Nb5+)-doped double-crossover DNA (DX-DNA) and salmon DNA (SDNA) thin films. Different concentrations of Nb5+ ([Nb5+]) are coordinated into the DNA molecules, and the thin films are fabricated via substrate-assisted growth (DX-DNA) and drop-casting (SDNA) on oxygen plasma treated substrates. We conducted atomic force microscopy to estimate the optimum concentration of Nb5+ ([Nb5+]O = 0.08 mM) in Nb5+-doped DX-DNA thin films, up to which the DX-DNA lattices maintain their structures without deformation. X-ray photoelectron spectroscopy (XPS) was performed to probe the chemical nature of the intercalated Nb5+ in the SDNA thin films. The change in peak intensities and the shift in binding energy were witnessed in XPS spectra to explicate the binding and charge transfer mechanisms between Nb5+ and SDNA molecules. UV-visible, Raman, and photoluminescence (PL) spectra were measured to determine the optical properties and thus investigate the binding modes, Nb5+ coordination sites in Nb5+-doped SDNA thin films, and energy transfer mechanisms, respectively. As [Nb5+] increases, the absorbance peak intensities monotonically increase until ∼[Nb5+]O and then decrease. However, from the Raman measurements, the peak intensities gradually decrease with an increase in [Nb5+] to reveal the binding mechanism and binding sites of metal ions in the SDNA molecules. From the PL, we observe the emission intensities to reduce them at up to ∼[Nb5+]O and then increase after that, expecting the energy transfer between the Nb5+ and SDNA molecules. The current-voltage measurement shows a significant increase in the current observed as [Nb5+] increases in the SDNA thin films when compared to that of pristine SDNA thin films. Finally, we investigate the temperature dependent magnetization in which the Nb5+-doped SDNA thin films reveal weak ferromagnetism due to the existence of tiny magnetic dipoles in the Nb5+-doped SDNA complex.
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Affiliation(s)
- Sekhar Babu Mitta
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
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135
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Exfoliated HNb3O8 nanosheets of enhanced acidity prepared by efficient contact of K2CO3 with Nb2O5. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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136
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Zheng A, Liu SB, Deng F. 31P NMR Chemical Shifts of Phosphorus Probes as Reliable and Practical Acidity Scales for Solid and Liquid Catalysts. Chem Rev 2017; 117:12475-12531. [DOI: 10.1021/acs.chemrev.7b00289] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anmin Zheng
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
National Center for Magnetic Resonance in Wuhan, Key Laboratory of
Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China
| | - Shang-Bin Liu
- Institute
of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Feng Deng
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
National Center for Magnetic Resonance in Wuhan, Key Laboratory of
Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China
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137
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Folens K, Du Laing G. Dispersion and solubility of In, Tl, Ta and Nb in the aquatic environment and intertidal sediments of the Scheldt estuary (Flanders, Belgium). CHEMOSPHERE 2017; 183:401-409. [PMID: 28554024 DOI: 10.1016/j.chemosphere.2017.05.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/11/2017] [Accepted: 05/12/2017] [Indexed: 06/07/2023]
Abstract
Certain specialty elements are indispensable in modern technologies for their particular properties. Yet, potential risks associated to the release of these elements at any stage, remains unknown. Therefore, the dispersion of indium (In), thallium (Tl), tantalum (Ta) and niobium (Nb) in the aquatic environment of the Scheldt estuary (Flanders, Belgium) was studied. Maximum concentrations in intertidal sediments of 101 ± 15 μg kg-1 for In, 481 ± 37 μg kg-1 for Tl, 88 ± 19 μg kg-1 for Ta and 1162 ± 4 μg kg-1 for Nb appeared on the sampling location closest to the river mouth, i.e. 57.5 km upstream. Their distribution in the intertidal sediments depends on the physicochemical sediment characteristics along the flow of the river Scheldt. The same was the case for most other metals and aluminum as their occurrence also correlated (p < 0.05) with the occurrence of In, Tl and Nb. While in general, studied elements correlate to the OM content and sulfur and phosphorus herein included, a relative enrichment of In, Tl and Nb was seen at Rupelmonde (92.0 km from the river mouth). Mainly the intertidal sediment silt fraction is capable of retaining the elements by exchanging with other ions in the mineral interlayer. Increasing salinity towards the river mouth can furthermore induce the formation of insoluble chloride species. Overall, the solubility of In, Tl, Ta and Nb appeared extremely low upon extraction of pore water from intertidal sediments saturated to 100% field capacity.
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Affiliation(s)
- Karel Folens
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Department of Applied Analytical and Physical Chemistry, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
| | - Gijs Du Laing
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Department of Applied Analytical and Physical Chemistry, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
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138
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Kreissl HT, Li MMJ, Peng YK, Nakagawa K, Hooper TJN, Hanna JV, Shepherd A, Wu TS, Soo YL, Tsang SCE. Structural Studies of Bulk to Nanosize Niobium Oxides with Correlation to Their Acidity. J Am Chem Soc 2017; 139:12670-12680. [DOI: 10.1021/jacs.7b06856] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Hannah T. Kreissl
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Molly M. J. Li
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Yung-Kang Peng
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Keizo Nakagawa
- Centre
for Membrane and Film Technology, Graduate School of Science, Technology
and Innovation, Kobe University, Kobe 657-8501, Japan
| | - Thomas J. N. Hooper
- Department
of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - John V. Hanna
- Department
of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Ashley Shepherd
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Tai-Sing Wu
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yun-Liang Soo
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - S. C. Edman Tsang
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
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139
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Ide Y, Shirae W. Hydrothermal Conversion of Layered Niobate K4Nb6O17·3H2O to Rare Microporous Niobate K6Nb10.8O30. Inorg Chem 2017; 56:10848-10851. [DOI: 10.1021/acs.inorgchem.7b01796] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yusuke Ide
- International Center
for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS), 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
- Graduate
School of Creative Science and Engineering, Waseda University, 1-6-1
Nishiwaseda, Shinjuku-ku, Tokyo 169-8050, Japan
| | - Wataru Shirae
- Graduate
School of Creative Science and Engineering, Waseda University, 1-6-1
Nishiwaseda, Shinjuku-ku, Tokyo 169-8050, Japan
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140
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Chan X, Pu T, Chen X, James A, Lee J, Parise JB, Kim DH, Kim T. Effect of niobium oxide phase on the furfuryl alcohol dehydration. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.04.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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141
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Influence of pore size and loading for Nb 2 O 5 /SBA-15 catalysts on synthetic ester production from free fatty acids of castor oil. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.04.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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142
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Mehdad A, Jentoft RE, Jentoft FC. Single-phase mixed molybdenum-niobium carbides: Synthesis, characterization and multifunctional catalytic behavior in toluene conversion. J Catal 2017. [DOI: 10.1016/j.jcat.2017.04.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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143
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Kim K, Woo SG, Jo YN, Lee J, Kim JH. Niobium oxide nanoparticle core–amorphous carbon shell structure for fast reversible lithium storage. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.051] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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144
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Chen D, Wang JH, Chou TF, Zhao B, El-Sayed MA, Liu M. Unraveling the Nature of Anomalously Fast Energy Storage in T-Nb2O5. J Am Chem Soc 2017; 139:7071-7081. [DOI: 10.1021/jacs.7b03141] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Dongchang Chen
- School
of Materials Science and Engineering, Center for Innovative Fuel Cell
and Battery Technologies, Georgia Institute of Technology, 771 Ferst
Drive, Atlanta, Georgia 30332-0245, United States
- Laser
Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0400, United States
| | - Jeng-Han Wang
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4 Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Tsung-Fu Chou
- Department
of Chemistry, National Taiwan Normal University, 88, Sec. 4 Ting-Zhou Road, Taipei 11677, Taiwan, R.O.C
| | - Bote Zhao
- School
of Materials Science and Engineering, Center for Innovative Fuel Cell
and Battery Technologies, Georgia Institute of Technology, 771 Ferst
Drive, Atlanta, Georgia 30332-0245, United States
- New
Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Mostafa A. El-Sayed
- Laser
Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332-0400, United States
| | - Meilin Liu
- School
of Materials Science and Engineering, Center for Innovative Fuel Cell
and Battery Technologies, Georgia Institute of Technology, 771 Ferst
Drive, Atlanta, Georgia 30332-0245, United States
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146
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Ferrand L, Tang Y, Aubert C, Fensterbank L, Mouriès-Mansuy V, Petit M, Amatore M. Niobium-Catalyzed Intramolecular Addition of O-H and N-H Bonds to Alkenes: A Tool for Hydrofunctionalization. Org Lett 2017; 19:2062-2065. [PMID: 28387512 DOI: 10.1021/acs.orglett.7b00657] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A convenient, versatile, and easy to handle intramolecular hydrofunctionalization of alkenes (C-O and C-N bonds formation) is reported using a novel niobium-based catalytic system. This atom economic and eco-friendly methodology provides an additional synthetic tool for the straightforward formation of valuable building blocks enabling molecular complexity. Various pyran, furan, pyrrolidine, piperidine, lactone, and lactam derivatives as well as spirocyclic compounds are produced in high yields and selectivities.
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Affiliation(s)
- Laura Ferrand
- Sorbonne Université, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232 , Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Yue Tang
- Sorbonne Université, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232 , Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Corinne Aubert
- Sorbonne Université, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232 , Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Louis Fensterbank
- Sorbonne Université, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232 , Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Virginie Mouriès-Mansuy
- Sorbonne Université, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232 , Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Marc Petit
- Sorbonne Université, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232 , Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Muriel Amatore
- Sorbonne Université, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR CNRS 8232 , Case 229, 4 Place Jussieu, 75252 Paris Cedex 05, France
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147
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Liu Y, Li H, He J, Zhao W, Yang T, Yang S. Catalytic conversion of carbohydrates to levulinic acid with mesoporous niobium-containing oxides. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.01.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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148
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Pinto MB, Soares AL, Mella Orellana A, Duarte HA, De Abreu HA. Structural, Electronic, and Thermodynamic Properties of the T and B Phases of Niobia: First-Principle Calculations. J Phys Chem A 2017; 121:2399-2409. [PMID: 28291341 DOI: 10.1021/acs.jpca.6b11383] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Different polymorphs of Nb2O5 can be obtained depending on the pressure and temperature of calcination leading to different catalytic properties. Two polymorphs of niobia, T-Nb2O5 and B-Nb2O5, have been investigated by means of density functional/plane waves method. The equation of state predicted that B-Nb2O5 phase is more stable than the T-Nb2O5 at low temperature; however at high pressure both phases are stable. These results are in good agreement with the available experimental data. The calculated cohesive energies of 6.63 and 6.59 eV·atom-1 for the B-Nb2O5 and T-Nb2O5, respectively, also corroborate this conclusion, and it can be compared to the experimental value of 9.56 eV atom-1 estimated for the most thermodynamically stable phase. The topological analyses based on quantum theory of atoms in molecules (QTAIM) and electron localization function (ELF) were applied and reveal bonds with large ionic character for both phases. The B-Nb2O5 presented larger stiffness than T-Nb2O5, and the oxygen sites in the T-Nb2O5 are more compressible. The density of states comparison for both structures indicates that B-Nb2O5 has lower concentration of acid sites compared to T-Nb2O5. This result is consistent with the experimental observations that the concentration of Lewis acid sites decreases with the temperature.
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Affiliation(s)
- Mirele B Pinto
- GPQIT, Departamento de Química, ICEx, Universidade Federal de Minas Gerais , Belo Horizonte 31270-901, MG, Brazil
| | - Antonio Lenito Soares
- GPQIT, Departamento de Química, ICEx, Universidade Federal de Minas Gerais , Belo Horizonte 31270-901, MG, Brazil
| | - Andy Mella Orellana
- Departamento de Física, Facultad de Ciencias, Universidad de Chile , Santiago, Chile
| | - Hélio A Duarte
- GPQIT, Departamento de Química, ICEx, Universidade Federal de Minas Gerais , Belo Horizonte 31270-901, MG, Brazil
| | - Heitor A De Abreu
- GPQIT, Departamento de Química, ICEx, Universidade Federal de Minas Gerais , Belo Horizonte 31270-901, MG, Brazil
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150
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Costenaro D, Bisio C, Carniato F, Safronyuk SL, Kramar TV, Taran MV, Starodub MF, Katsev AM, Guidotti M. Physico-chemical Properties, Biological and Environmental Impact of Nb-saponites Catalysts for the Oxidative Degradation of Chemical Warfare Agents. ChemistrySelect 2017. [DOI: 10.1002/slct.201700042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daniele Costenaro
- Nano-SiSTeMI Interdisciplinary Centre; University of Eastern Piedmont “A. Avogadro”; Viale T. Michel 11 15121 Alessandria Italy
| | - Chiara Bisio
- Nano-SiSTeMI Interdisciplinary Centre; University of Eastern Piedmont “A. Avogadro”; Viale T. Michel 11 15121 Alessandria Italy
- Institute of Molecular Sciences and Technology - ISTM; National Research Council - CNR; via C. Golgi 19 20144 Milano Italy
| | - Fabio Carniato
- Nano-SiSTeMI Interdisciplinary Centre; University of Eastern Piedmont “A. Avogadro”; Viale T. Michel 11 15121 Alessandria Italy
| | - Sergey L. Safronyuk
- Medical Academy V.I. Vernadsky; Crimean Federal University; boulevard Lenina 5/7 295006 Simferopol
| | - Tatyana V. Kramar
- Medical Academy V.I. Vernadsky; Crimean Federal University; boulevard Lenina 5/7 295006 Simferopol
| | - Marina V. Taran
- National University of Life and Environmental Sciences of Ukraine; Heroyiv Oborony 15 Kyiv- 03041 Ukraine
| | - Mykola F. Starodub
- National University of Life and Environmental Sciences of Ukraine; Heroyiv Oborony 15 Kyiv- 03041 Ukraine
| | - Andrey M. Katsev
- Medical Academy V.I. Vernadsky; Crimean Federal University; boulevard Lenina 5/7 295006 Simferopol
| | - Matteo Guidotti
- Institute of Molecular Sciences and Technology - ISTM; National Research Council - CNR; via C. Golgi 19 20144 Milano Italy
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