Ammar Ameen Uddin, Yildirim Ipek Deniz, Bakan Feray, Erdem Emre
Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla 34956, Istanbul, Turkey.
Sabanci University Nanotechnology Research Centre (SUNUM), Sabanci University TR-34956 Istanbul, Turkey.
Beilstein J Nanotechnol. 2021 Jan 13;12:49-57. doi: 10.3762/bjnano.12.4. eCollection 2021.
Supercapacitor devices are interesting owing to their broad range of applicability from wearable electronics to energy storage in electric vehicles. One of the key parameters that affect the efficiency of supercapacitor devices is selecting the ideal electrode material for a specific application. Regarding this, recently developed metal oxides, specifically nanostructured ZnO, and MXenes with their defect structures, size effects, as well as optical and electronic properties have been presented as electrode material in supercapacitor devices. The discussion of MXenes along with ZnO, although different in chemistry, also highlights the differences in dimensionality when it comes to defect-driven effects, especially in carrier transport. The volume under the influence of the defect centers is expected to be different in bulk and 2D structures, regardless of composition. Hence, analysis and discussion of both materials provide a fundamental understanding regarding the manner in which 2D structures are impacted by defects compared to bulk. Such an approach would therefore serve the scientific community with the material design tools needed to fabricate the next generation of supercapacitor devices.
超级电容器因其广泛的适用性而备受关注，从可穿戴电子设备到电动汽车的能量存储。影响超级电容器效率的关键参数之一是为特定应用选择理想的电极材料。关于这一点，最近开发的金属氧化物，特别是纳米结构的氧化锌，以及具有缺陷结构、尺寸效应以及光学和电子特性的MXenes，已被作为超级电容器设备的电极材料提出。将MXenes与氧化锌一起讨论，尽管它们在化学性质上有所不同，但在涉及缺陷驱动效应时，特别是在载流子传输方面，也突出了维度上的差异。无论组成如何，预计缺陷中心影响下的体积在体相结构和二维结构中是不同的。因此，对这两种材料的分析和讨论提供了一个基本的理解，即与体相相比，二维结构是如何受到缺陷影响的。这样一种方法将为科学界提供制造下一代超级电容器设备所需的材料设计工具。
