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Full-Text Articles in Physical Sciences and Mathematics
Status And Prospects Of Organic Redox Flow Batteries Toward Sustainable Energy Storage, Jian Luo, Bo Hu, Maowei Hu, Yu Zhao, T. Leo Liu
Status And Prospects Of Organic Redox Flow Batteries Toward Sustainable Energy Storage, Jian Luo, Bo Hu, Maowei Hu, Yu Zhao, T. Leo Liu
Chemistry and Biochemistry Faculty Publications
Redox flow batteries (RFBs) are regarded a promising technology for large-scale electricity energy storage to realize efficient utilization of intermittent renewable energy. Redox -active materials are the most important components in the RFB system because their physicochemical and electrochemical properties directly determine their battery performance and energy storage cost. Designable, tunable, and potentially low-cost redox-active organic compounds are promising alternatives to traditional redox-active inorganic compounds for RFB applications. Herein, the representative designs of redox-active molecules, recent development of organic RFBs (ORFBs), and advantages/disadvantages of different ORFB are reviewed. Especially the relationship between redox-active molecules’ physicochemical properties and their battery performance …
Highly Active Nanostructured Cos2/Cos Heterojunction Electrocatalysts For Aqueous Polysulfide/Iodide Redox Flow Batteries, Dui Ma, Bo Hu, Wenda Wu, Xi Liu, Jiantao Zai, Chen Shu, Tsegaye Tadesse Tsega, Liwei Chen, Xuefeng Qian, T. Leo Liu
Highly Active Nanostructured Cos2/Cos Heterojunction Electrocatalysts For Aqueous Polysulfide/Iodide Redox Flow Batteries, Dui Ma, Bo Hu, Wenda Wu, Xi Liu, Jiantao Zai, Chen Shu, Tsegaye Tadesse Tsega, Liwei Chen, Xuefeng Qian, T. Leo Liu
Chemistry and Biochemistry Faculty Publications
Aqueous polysulfide/iodide redox flow batteries are attractive for scalable energy storage due to their high energy density and low cost. However, their energy efficiency and power density are usually limited by poor electrochemical kinetics of the redox reactions of polysulfide/iodide ions on graphite electrodes, which has become the main obstacle for their practical applications. Here, CoS2/CoS heterojunction nanoparticles with uneven charge distribution, which are synthesized in situ on graphite felt by a one-step solvothermal process, can significantly boost electrocatalytic activities of I−/I3− and S2−/Sx2−redox reactions by improving absorptivity of …
Switchable Aromaticity In An Isostructural Mn Phthalocyanine Series Isolated In Five Separate Redox States, Camden Hunt, Madeline Peterson, Cassidy Anderson, Tieyan Chang, Guang Wu, Steve Scheiner, Gabriel Ménard
Switchable Aromaticity In An Isostructural Mn Phthalocyanine Series Isolated In Five Separate Redox States, Camden Hunt, Madeline Peterson, Cassidy Anderson, Tieyan Chang, Guang Wu, Steve Scheiner, Gabriel Ménard
Chemistry and Biochemistry Faculty Publications
The synthesis and characterization of a new phthalocyanine(Pc) Mn-nitride complex, (OEtPc)MnN (2; OEtPc= 1,4,8,11,15,18,22,25-octaethoxy-Pc), as well as its stable, readily accessible oxidized (2+ and 22+) and reduced (2-, 22-) congeners is reported. This unique isostructural series displays switchable aromatic character spanning the aromatic (2), non-aromatic (22+), and antiaromatic (22-) triad, in addition to the open-shell radical states (2+, 2-). All complexes were structurally characterized and displayed significant structural distortions at the redox extrema (22+, 22-) consistent with proposed [16 or 18]annulene π ring circuit models. Spectroscopic and computational studies further support these models. This isolated, fully characterized, isostructural series spanning …