Index Catalog // ScholarsArchive@OSU

Creator:: Wu, Xianyong, Hong, Jessica J., Shin, Woochul, Ma, Lu, Liu, Tongchao, Bi, Xuanxuan, Yuan, Yifei, Qi, Yitong, Surta, T. Wesley, Huang, Wenxi, Neuefeind, Joerg, Wu, Tianpin, Greaney, P. Alex, Lu, Jun, and Ji, Xiulei
Abstract:: The design of Faradaic battery electrodes that exhibit high rate capability and long cycle life equivalent to those of the electrodes of electrical double-layer capacitors is a big challenge. Here we report a strategy to fill this performance gap using the concept of Grotthuss proton conduction, in which proton transfer...
Resource Type:: Article

Creator:: Gao, Ningshengjie, Qu, Botong, Xing, Zhenyu, Ji, Xiulei, Zhang, Eugene, and Liu, Hong
Abstract:: Air-cathode fabrication is currently a key factor that hinders the scaling up of microbial fuel cell (MFC) technology. A new type of cathode material that contains porous polyethylene (PE) sheet and a blended activated carbon (AC) and highly conductive carbon back (CB) layer was developed for the first time. The...
Resource Type:: Article

Creator:: Cheng, Yingwen, Shao, Yuyan, Raju, Vadivukarasi, Ji, Xiulei, Mehdi, B. Layla, Han, Kee Sung, Engelhard, Mark H., Li, Guosheng, Browning, Nigel D., Mueller, Karl T., and Liu, Jun
Abstract:: Mg batteries have potential advantages in terms of safety, cost, and reliability over existing battery technologies, but their practical implementations are hindered by the lack of amenable high-voltage cathode materials. The development of cathode materials is complicated by limited understandings of the unique divalent Mg²⁺ ion electrochemistry and the interaction/transportation...
Resource Type:: Article

Creator:: Xing, Zhenyu, Wang, Bao, Gao, Wenyang, Pan, Changqing, Halsted, Joshua K., Chong, Elliot S., Lu, Jun, Wang, Xingfeng, Luo, Wei, Chang, Chih-Hung, Wen, Youhai, Ma, Shengqian, Amine, Khalil, and Ji, Xiulei
Abstract:: Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m...
Resource Type:: Article

Creator:: Li, Xiaolin, Yan, Pengfei, Arey, Bruce W., Luo, Wei, Ji, Xiulei, Wang, Chongmin, Liu, Jun, and Zhang, Ji-Guang
Abstract:: Porous silicon prepared by low-cost and scalable magnesiothermic reactions is a promising anode material for Li-ion batteries; yet, retaining good cycling stability for such materials in electrodes of practical loading remains a challenge. Here, we engineered the nanoporous silicon from a modified magnesiothermic reaction by controlled surface oxidization forming a...
Resource Type:: Article

Creator:: Luo, Wei, Bommier, Clement, Jian, Zelang, Li, Xin, Carter, Rich, Vail, Sean, Lu, Yuhao, Lee, Jong-Jan, and Ji, Xiulei
Abstract:: Na-ion batteries are emerging as one of the most promising energy storage technologies, particularly for grid-level applications. Among anode candidate materials, hard carbon is very attractive due to its high capacity and low cost. However, hard carbon anodes often suffer a low first-cycle Coulombic efficiency and fast capacity fading. In...
Resource Type:: Article

Creator:: Jian, Zelang, Sun, Yang, Hu, Yong-Sheng, and Ji, Xiulei
Abstract:: A low-voltage plateau at ∼0.3 V is discovered during the deep sodiation of Na₃V₂(PO₄)₃ by combined computational and experimental studies. This new low-voltage plateau doubles the sodiation capacity of Na₃V₂(PO₄)₃, thus turning it into a promising anode for Na-ion batteries.
Resource Type:: Article

Creator:: Chun, Sang-Eun, Evanko, Brian, Wang, Xingfeng, Vonlanthen, David, Ji, Xiulei, Stucky, Galen D., and Boettcher, Shannon W.
Abstract:: Electrochemical double-layer capacitors exhibit high power and long cycle life but have low specific energy compared with batteries, limiting applications. Redox-enhanced capacitors increase specific energy by using redox-active electrolytes that are oxidized at the positive electrode and reduced at the negative electrode during charging. Here we report characteristics of several...
Resource Type:: Article

Creator:: Chen, Chaoji, Wen, Yanwei, Hu, Xianluo, Ji, Xiulei, Yan, Mengyu, Mai, Liqiang, Hu, Pei, Shan, Bin, and Huang, Yunhui
Abstract:: Sodium-ion batteries are emerging as a highly promising technology for large-scale energy storage applications. However, it remains a significant challenge to develop an anode with superior long-term cycling stability and high-rate capability. Here we demonstrate that the Na⁺ intercalation pseudocapacitance in TiO₂/graphene nanocomposites enables high-rate capability and long cycle life...
Resource Type:: Article

Creator:: Raju, Vadivukarasi, Rains, Jordan, Gates, Cooper, Luo, Wei, Wang, Xingfeng, Stickle, William F., Stucky, Galen D., and Ji, Xiulei
Abstract:: We, for the first time, demonstrate that orthorhombic V₂O₅ can exhibit superior electrochemical performance in sodium ion batteries when uniformly coated inside nanoporous carbon. The encapsulated V₂O₅ shows a specific capacity as high as 276 mAh/g, while the whole nanocomposite exhibits a capacity of 170 mAh/g. The V₂O₅/C composite was...
Resource Type:: Article

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