Since the Yangshao Culture (5000–3000 BC), ancient Chinese people living in the Yellow River basin began to use natural layered materials to create pottery, such as bowls, cups, and containers. The development of pottery marked the beginning of the Neolithic Age, representing the first time humans intentionally used layered materials to produce new objects. Over time, as scientific understanding of these materials deepened, more layered substances were discovered and applied, including graphite, montmorillonite, layered sulfides, and layered metal hydroxides. Among these, layered metal hydroxides are anionic compounds typically composed of transition metals like cobalt, nickel, and iron. Like many other layered materials, they can be exfoliated into single-layer structures with a thickness of about 1 nanometer. Due to their large surface area, these two-dimensional materials show great potential in electrochemical applications, such as supercapacitors, and have attracted significant research interest globally. However, the high surface energy of two-dimensional materials often leads to self-stacking during electrode preparation, which severely limits their practical use in electrochemical systems. Researchers from the Institute of Nanotechnology and Nano-Bionics at the Chinese Academy of Sciences, in collaboration with Suzhou University, developed a method to fabricate full two-dimensional supercapacitor electrodes using the surface charge for intercalation and assembly of heterogeneous materials. This approach successfully prevented the “self-stacking†phenomenon during electrode fabrication. By leveraging the electrostatic interaction between graphene oxide and monolayer cobalt hydroxide, the team achieved efficient layer-by-layer assembly, resulting in superior supercapacitor electrode materials. Their findings were published in *Chem. Commun.* (2011) and *Langmuir* (2012). Aluminum-based supercapacitors, while widely used, suffer from low electrochemical activity, leading to reduced specific capacitance. To address this, the research group prepared α-phase layered cobalt hydroxide and adjusted its interlayer spacing using small molecule ligands, creating cobalt hydroxide layers with spacings of 1.6, 0.7, and 0.09 nm. They systematically studied how these layer spacings affect the capacitor performance. Their work was published in *Adv. Funct. Mater.* (2013). During the exfoliation of α-phase cobalt hydroxide, the team observed a phase transition and successfully produced single-layer β-phase cobalt hydroxide with a thickness of approximately 1 nm. The yield reached nearly 100%. They then fabricated a composite electrode by self-assembling reduced graphene oxide and β-phase cobalt hydroxide nanosheets through electrostatic forces, achieving excellent supercapacitive performance. This study was published in *ACS Nano* (DOI: 10.1021/nn500386u). This research was supported by the National Natural Science Foundation of China (Grant No. 21004076), the "973" Major Research Plan (Grant No. 2013CB933000), and the Key Deployment Project of the Chinese Academy of Sciences (KJZD-EW-M01-3). PHROXI ABS pull-down spray head Kitchen Faucet made of high quality materials.This well-designed faucet features a ceramic disc cartridge. Pull Down Kitchen Faucet,Commercial Kitchen Faucet,Brass Kitchen Faucet,Kitchen Faucet Brass HESHAN CAIZUN SANITRAYWARE CO.,LTD , https://www.caizunsanitaryware.com