Liquid Na/K Alloy Interfacial Synthesis of Functional Porous Carbon at Ambient Temperature

Abstract

The functional groups in porous carbon generally suffer a severe loss during the high‐temperature carbonization. Instead, the low‐temperature synthesis of carbon featuring porous structures and abundant functional groups is not only a solution that evades the pitfalls of pyrolysis but also is of significance for the development of synthetic methodology. Herein, a liquid metal interfacial engineering strategy is reported for the synthesis of porous carbon using CCl4 as the carbon precursor and sodium‐potassium alloy (NaK) as the reducing agent, which is superior to traditional synthetic methods because it enables the engineering of a highly active liquid metal alloy microemulsion to directly generate porous carbon at ambient temperature. As synthesized porous carbon featured abundant carbon‐chlorine bonds can be tandem‐grafted with imidazole and 1,2‐dibromoethane to achieve a CO2 cycloaddition catalyst, which exhibits excellent catalytic activity, in addition to exceptional stability.

Regulation of the B Site at La(Ni0.1)MnO3 Perovskite Decorated with N-Doped Carbon for a Bifunctional Electrocatalyst in Zn–Air Batteries

“…The peaks of C 1s (Figure b) were decomposed into four main peaks, corresponding to C–C/CC, C–N, C–O, and O–CO. Deconvolution of N 1s spectra (Figure c) generates three peaks including pyridinic-N (398.2 ± 0.2 eV), pyrrolic-N (400.1 ± 0.2 eV), and graphitic-N (401.1± 0.2 eV) . Pyridinic-N may originate from the N species of organic ligands and graphitic-N is favorable to facilitate the interfacial charge transfer.…”

Self-Supported Carbon Electrodes with a Carbon Membrane and Co3O4 Nanosheets for High-Performance Enzymeless Glucose Detection and Supercapacitors

“…Carbonaceous materials are widely employed as supports, adsorbents, and metal-free electrocatalysts to address crucial energy and environmental issues during the past decades. − After the graphite electrodes were applied for the production of alkali metals, carbon electrode materials have been extensively investigated in both academic research and industrial applications due to their unique physical and chemical properties. , The attractive features of carbonaceous electrode materials include relatively inert electrochemistry, wide potential window, structural diversification, electrocatalytic activity for various redox reactions, rich surface chemistry, and low cost. ,− Therefore, tremendous research efforts are devoted to the design and synthesis of efficient carbon electrode materials, especially porous carbon materials. ,− This is because the pores in carbon with different sizes and shapes can dramatically lower apparent density and increase the surface area, which facilitate the interfacial energy and mass transfer, thus improving the electrochemical properties of carbonaceous electrodes in many electrochemical processes …”

Waste Adsorbent-Derived Interconnected Hierarchical Attapulgite@Carbon/NiCo Layered Double Hydroxide Nanocomposites for Advanced Supercapacitors

“…It is common to combine well-conductive carbon-based substances with NiCo LDH to solve these issues. Numerous research studies have been conducted into the composition as well as modification of carbon-based materials to develop their potential for various purposes. − However, the most common carbon-based materials are relatively expensive despite their excellent properties, which limits their large-scale application in SCs. Therefore, it is necessary to seek a cheap, easily available, eco-friendly, and economical carbon-based material.…”