title: Equimolar carbon absorption by potassium phthalimide and in situ catalytic conversion under mild conditions.
abstract: Potassium phthalimide, with weak basicity, is an excellent absorbent for rapid carbon dioxide capture with almost equimolar absorption. This process is assumed to proceed through the potassium carbamate formation pathway, as supported by NMR spectroscopy, an in situ FTIR study, and computational calculations. Both the basicity and nucleophilicity of phthalimide salts have a crucial effect on the capture process. Furthermore, the captured carbon dioxide could more easily be converted in situ into value-added chemicals and fuel-related products through carbon capture and utilization, rather than going through a desorption process.
authors.affiliation: State Key Laboratory and Institute of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071 (PR China).
authors.forename: Shuai
authors.initials: S
authors.lastname: Zhang
authors.forename: Yu-Nong
authors.initials: YN
authors.lastname: Li
authors.forename: Ya-Wei
authors.initials: YW
authors.lastname: Zhang
authors.forename: Liang-Nian
authors.initials: LN
authors.lastname: He
authors.forename: Bing
authors.initials: B
authors.lastname: Yu
authors.forename: Qing-Wen
authors.initials: QW
authors.lastname: Song
authors.forename: Xian-Dong
authors.initials: XD
authors.lastname: Lang
mesh_terms: D065966:Absorption, Physicochemical; D002219:Carbamates / Q000737:chemistry; D002245:Carbon Dioxide / Q000737:chemistry*; D002384:Catalysis; D005561:Formates / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010797:Phthalimides / Q000737:chemistry*; D059205:Renewable Energy; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D002219:Carbamates; D005561:Formates; D010797:Phthalimides; C030544:formic acid; D002245:Carbon Dioxide; C037431:phthalimide; C070766:carbamic acid
keywords: absorption; carbon dioxide fixation; green chemistry; homogeneous catalysis; phthalimides; potassium