Showing papers by "Yayuan Liu published in 2022"
TL;DR: In this paper , the authors provided the novel design and synthesis of an advanced category of CeO2/CoS2 heterostructures, which combines the local photothermal effect (LPTE) action of C2 and the photoelectric effect CoS2 to boost OER.
48 citations
TL;DR: In this article , a concept for a flowing, electrochemically mediated carbon capture process by utilizing redox-active molecules that are liquid at room temperature, avoiding the need for large water feeds is presented.
16 citations
13 citations
8 citations
TL;DR: In this paper , an extrinsic pseudocapacitive material from the typical battery-type material Co(OH)2 by S2− doping was proposed, which further increased energy barrier for the intercalation of OH− ions into the interlayer space, thus suppressing its bulk phase transformation.
6 citations
TL;DR: In this article , a rapid microwave method with a proper number density of defects such that they become efficient photocatalysts for hydrogen evolution reaction was proposed. But this method requires a large number of defects to be removed from the ZnS/g-C3N4 nanocomposites.
6 citations
TL;DR: In this paper , an innovative 3D flexible self-supporting Li anode protection layer of P-Mn3O4−x is constructed via a facile solvothermal method followed by an annealing process.
4 citations
TL;DR: In this paper , a rod-like micro-nano architecture with a thin carbonaceous shell is designed and built deliberately for Ni(OH)2 notorious in its especially low stability as a demonstration for stabilizing the structure of battery-type materials.
4 citations
TL;DR: In this article , the main challenges and future research opportunities for practical implementation of continuous flow electrochemically mediated carbon capture (EMCC) processes are discussed from a multi-scale perspective, from molecules to electrochemical cells and finally to separation systems.
3 citations
TL;DR: In this article , the authors demonstrate the use of liquid, redox-active sorbents in a flow system that can decouple the electrode size from gas contacting area, which can enable efficient CO2 separation from the feed gas.
Abstract: Within the field of carbon capture, electrochemically driven methods have drawn increasing attention due to their ability to operate at ambient temperature, their efficient scaling, and potentially low energetic cost. An important consideration in such systems is the method of gas contacting to enable efficient CO2 separation from the feed gas. Previous flow-based electrochemical processes that enable large-area gas contacting and desorption of concentrated CO2 at a point location all utilize water as the solvent and can require significant water feeds due to high evaporation rates. Here, we demonstrate the use of liquid, redox-active sorbents in a flow system that can decouple the electrode size from gas contacting area. The concept sorbent is a nonvolatile, liquid quinone species that can be reversibly reduced and oxidized to capture and release CO2, respectively. In this initial study, we employ the liquid quinone with sodium salts to achieve sorbent capacities near 2.5M CO2 and couple this sorbent to a ferrocene-derived counter electrolyte in a continuous capture – release process. Through this, we illustrate considerations in the salt choice, counter-electrolyte, and system design to best enable this concept sorbent, and discuss many opportunities for future optimizations.