title: N-Doped Ordered Mesoporous Carbon Originated from a Green Biological Dye for Electrochemical Sensing and High-Pressure CO2 Storage.
abstract: Herein, a series of nitrogen-doped ordered mesoporous carbons (NOMCs) with tunable porous structure were synthesized via a hard-template method with a green biological dye as precursor, under various carbonization temperatures (700-1100 °C). Compared with the ordered mesoporous silica-modified and unmodified electrodes, the use of electrodes coated by NOMCs (NOMC-700-NOMC-1100) resulted in enhanced signals and well-resolved oxidation peaks in electrocatalytic sensing of catechol and hydroquinone isomers, attributable to NOMCs' open porous structures and increased edge-plane defect sites on the N-doped carbon skeleton. Electrochemical sensors using NOMC-1000-modified electrode were fabricated and proved feasible in tap water sample analyses. The NOMCs were also used as sorbents for high-pressure CO2 storage. The NOMC with the highest N content exhibits the best CO2 absorption capacities of 800.8 and 387.6 mg/g at 273 and 298 K (30 bar), respectively, which is better than those of other NOMC materials and some recently reported CO2 sorbents with well-ordered 3D porous structures. Moreover, this NOMC shows higher affinity for CO2 than for N2, a benefit of its higher nitrogen content in the porous carbon framework.
authors.affiliation: Laboratory of Environmental Science and Technology, Xinjiang Technical Institute of Physics & Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences , Urumqi 830011, China.
authors.forename: Shenghai
authors.initials: S
authors.lastname: Zhou
authors.affiliation: Laboratory of Environmental Science and Technology, Xinjiang Technical Institute of Physics & Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences , Urumqi 830011, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Hongbo
authors.initials: H
authors.lastname: Xu
authors.affiliation: Laboratory of Environmental Science and Technology, Xinjiang Technical Institute of Physics & Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences , Urumqi 830011, China.
authors.forename: Qunhui
authors.initials: Q
authors.lastname: Yuan
authors.affiliation: Laboratory of Environmental Science and Technology, Xinjiang Technical Institute of Physics & Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences , Urumqi 830011, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Hangjia
authors.initials: H
authors.lastname: Shen
authors.affiliation: Laboratory of Environmental Science and Technology, Xinjiang Technical Institute of Physics & Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences , Urumqi 830011, China.
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Zhu
authors.affiliation: The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States.
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Laboratory of Environmental Science and Technology, Xinjiang Technical Institute of Physics & Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences , Urumqi 830011, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Gan
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry*; D002396:Catechols / Q000032:analysis; D004396:Coloring Agents / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods*; D006873:Hydroquinones / Q000032:analysis; D007536:Isomerism; D009584:Nitrogen / Q000737:chemistry; D010084:Oxidation-Reduction; D056951:Photoelectron Spectroscopy; D016062:Porosity; D011312:Pressure; D012822:Silicon Dioxide / Q000138:chemical synthesis; D013696:Temperature; D014867:Water / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D002396:Catechols; D004396:Coloring Agents; D006873:Hydroquinones; D014867:Water; D002245:Carbon Dioxide; D002244:Carbon; D012822:Silicon Dioxide; C034221:catechol; D009584:Nitrogen; C031927:hydroquinone
keywords: biological dye; catechol and hydroquinone; electrochemical sensor; high-pressure CO2 storage; nitrogen-doped ordered mesoporous carbons