Electrifying amine carbon capture with robust redox-tunable acids.

Electrochemically mediated carbon capture presents an energy-efficient and cost-effective strategy to combat climate change due to its ability to utilize renewable energy and operate at ambient conditions. However, many current approaches suffer from operational instability and limited scalability potential due to a lack of reliable, low-cost redox-active absorbent materials. Here, we introduce a class of chemically robust and economical redox-tunable Brønsted acids to electrify amine carbon capture.

Pt/α-MoC Catalyst Boosting pH-Universal Hydrogen Evolution Reaction at High Current Densities.

Constructing subnanometric electrocatalysts is an efficient method to synergistically accelerate HO dissociation and H reduction for pH-universal hydrogen evolution reaction (HER) for industrial water electrolysis to produce green hydrogen. Here, we construct a subnanometric Pt/α-MoC catalyst, where the α-MoC component can dissociate water effectively, with the rapid proton release kinetics of Pt species on Pt/α-MoC to obtain a good HER performance at high current densities in all-pH electrolytes. Quasi-in situ X-ray photoelectron spectroscopy analyses and density functional theory calculations confirm the highly efficient water dissociation capability of α-MoC and the thermodynamically favorable desorption process of hydrolytically dissociated protons on Pt sites at the high current density.

Preparation and study of straw porous biochar with aromatic ring structure for adsorption performance and mechanism toward TNT red water.

2,4,6-Trinitrotoluene (TNT) production processes generate a substantial amount of toxic wastewater. Therefore, it is crucial to identify efficient and sustainable methods for treating this wastewater. This paper explores the application of sustainable biomass-derived carbon produced from rice straw for the adsorption of 2,4,6-trinitrotoluene (TNT) red water.