Browsing NTNU Open by Author "Wang, Xuehang"
Now showing items 1-11 of 11
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Atomically dispersed Fe-N-P-C complex electrocatalysts for superior oxygen reduction
Li, Yahao; Chen, Bingxu; Duan, Xuezhi; Chen, Shuangming; Liu, Daobin; Zang, Ketao; Si, Rui; Lou, Fengliu; Wang, Xuehang; Rønning, Magnus; Song, Li; Luo, Jun; Chen, De (Journal article; Peer reviewed, 2019)Development of cost-effective electrocatalysts as an alternative to platinum for oxygen reduction reaction (ORR) is of great significance for boosting the applications of green energy devices such as fuel cells and metal-air ... -
Boosted Supercapacitive Energy with High Rate Capability of aCarbon Framework with Hierarchical Pore Structure in an Ionic Liquid
Wang, Xuehang; Zhou, Haitao; Lou, Fengliu; Li, Yahao; Buan, Marthe Emelie Melandsø; Duan, Xuezhi; Walmsley, John Charles; Sheridan, Edel; Chen, De (Journal article; Peer reviewed, 2016)The specific energy of a supercapacitor (SC) with an ionic liquid (IL)-based electrolyte is larger than that using an aqueous electrolyte owing to the wide operating voltage window provided by the IL. However, the wide-scale ... -
Boosting properties of 3D binder-free manganese oxide anodes by preformation of a solid electrolyte interphase
Zhou, Haitao; Wang, Xuehang; Sheridan, Edel; Chen, De (Journal article; Peer reviewed, 2015)Huge irreversible capacity loss prevents the successful use of metal oxide anodes in Li-ion full cells. Here, we focus on the critical prelithiation step and demonstrate the challenge of electrolyte decomposition on a ... -
Boosting the energy density of 3D dual-manganese oxides-based li-ion supercabattery by controlled mass ratio and charge injection
Zhou, Haitao; Wang, Xuehang; Sheridan, Edel; Gao, Hongquan; Du, Juan; Yang, Jianhong; Chen, De (Journal article; Peer reviewed, 2016)Supercabatteries, combining the energy of secondary batteries with the power of supercapacitors, have attracted significant attention in the energy storage research and market field. Herein, we continued our previous 3D ... -
Enhancing capacitance of supercapacitor with both organic electrolyte and ionic liquid electrolyte on a biomass-derived carbon
Wang, Xuehang; Li, Yahao; Lou, Fengliu; Buan, Marthe Emelie Melandsø; Sheridan, Edel; Chen, De (Journal article; Peer reviewed, 2017)Supercapacitor (SC) with organic electrolyte or ionic liquid (IL) electrolyte can generally store/release higher energy than that with an aqueous electrolyte, due to a larger operating voltage window of a non-aqueous ... -
High capacity Mg batteries based on surface-controlled electrochemical reactions
Wang, Lu; Vullum, Per Erik; Asheim, Karina; Wang, Xuehang; Svensson, Ann Mari; Vullum-Bruer, Fride (Journal article; Peer reviewed, 2018)Mg batteries are one of several new battery technologies expected to partially substitute lithium-based batteries in the future due to the lower cost and higher safety. However, the development of Mg batteries has been ... -
Holistic Processing of Sawdust to Enable Sustainable Hybrid Li-Ion Capacitors
Guo, Xiaoyang; van de Kleut, Dick; Zhang, Jia; Chen, Chaofan; Wang, Xuehang; Zheng, Tianye; Boles, Steven Tyler (Peer reviewed; Journal article, 2024)Activated carbon has long been recognized as a promising electrode material for energy storage devices. The extraordinarily high specific area makes it challenging to replace in supercapacitors since electrical double-layer ... -
Li-metal-free prelithiation of Si-based negative electrodes for full Li-ion batteries
Zhou, Haitao; Wang, Xuehang; Chen, De (Journal article; Peer reviewed, 2015)Most of the high‐capacity positive‐electrode materials [for example, S, O2 (air), and MOx (M: V, Mn, Fe, etc.)] are Li‐deficient and require the use of a Li‐metal electrode or prelithiation. Herein, we report a novel ... -
Microscopic Insight to Nonlinear Voltage Dependence of Charge in Carbon-Ionic Liquid Supercapacitors
Mehandzhiyski, Aleksandar Yordanov; Wang, Xuehang; Anquetil-Deck, Candy; Chen, De; Grimes, Brian Arthur (Journal article; Peer reviewed, 2021) -
Porous Carbon Prepared by Chemical Activation for High-Energy Supercapacitors in Ionic Liquid Electrolyte
Wang, Xuehang (Doctoral theses at NTNU;2016:264, Doctoral thesis, 2016)Supercapacitor (SC), a high-power, safe and long-lifetime energy storage device, has been considered as a potential candidate to replace the use of rechargeable batteries for mobile high-power application. Due to the ... -
Selective Charging Behavior in an Ionic Mixture Electrolyte- Supercapacitor System for Higher Energy and Power
Wang, Xuehang; Mehandzhiyski, Aleksandar Yordanov; Arstad, Bjørnar; Van Aken, Katherine L.; Tyler S., Mathis; Gallegos, Alejandro; Tian, Ziqi; Ren, Dingding; Sheridan, Edel; Grimes, Brian Arthur; Jiang, De-en; Wu, Jianzhong; Gogotsi, Yury; Chen, De (Journal article; Peer reviewed, 2017)Ion–ion interactions in supercapacitor (SC) electrolytes are considered to have significant influence over the charging process and therefore the overall performance of the SC system. Current strategies used to weaken ionic ...