Yan Huang

TL;DR: Tong et al. as discussed by the authors used polypyridine ruthenium complexes for CO2 reduction and achieved a maximum turnover frequency of 1084.1 s−1 and a Faradaic efficiency of 66% under the optimized electrocatalytic conditions.

TL;DR: In this paper, the authors describe a yarn-based nickel-zinc textile battery that can be configured to facilitate textile material processing, such as weaving, knitting, etc., using industrial weaving or knitting machines.

TL;DR: In this article , the authors used deep learning to estimate the direction of arrival (DOA) in the virtual array beam space to adapt to the array imperfections, and a training method robust to various array-imperfections is proposed, that is, a spherical model is used to simulate the distribution of different array imperfection, and training sets are generated in the distribution.

Abstract: The pursuit of new categories of active materials as electrodes of supercapacitors remains a great challenge. Herein, for the first time, elemental boron as a superior electrode material of supercapacitors is reported, which exhibits significantly high capacitances and excellent rate performance in all alkaline, neutral, and acidic electrolytes. Notably, boron nanowire‐carbon fiber cloth (BNWs‐CFC) electrodes achieve a capacitance up to 42.8 mF cm−2 at a scan rate of 5 mV s−1 and 60.2 mF cm−2 at a current density of 0.2 mA cm−2 in the acidic electrolyte. Moreover, in all these three kinds of electrolytes, BNWs‐CFC electrodes demonstrate a decent cycling stability with >80% capacitance retention after 8000 charging/discharging cycles. The Dominating energy storage mechanism of BNWs in the different electrolytes is analyzed by looking into the kinetics of the electrochemical process. Subsequently, the BNWs‐CFC electrode is used to fabricate a flexible solid‐state supercapacitor, which reveals a specific capacitance up to 22.73 mF cm−2 and good mechanical performance after 1000 bending cycles. This study opens a new avenue to explore elemental boron‐based new nanomaterials for the application of energy storage with superior electrochemical performance.