Plastron effect enhanced electrochemical CO reduction activity over hydrophobic three-dimensional nanoporous silver.

The electrochemical reduction of CO on catalyst surfaces is hindered by the inefficient mass transfer of CO in aqueous solutions. In this study, we employed an electrochemical reduction approach to fabricate a hydrophobic three-dimensional nanoporous silver catalyst with a plastron effect, aiming to enhance the CO diffusion. The resulting catalyst exhibited an exceptional performance with the FE peaking at 95% at -0.

The structure and properties of lignin isolated from various lignocellulosic biomass by different treatment processes.

The structure and properties of lignin can vary depending on the type of lignocellulosic biomass it comes from and the separation techniques used, and also affects its suitability for different applications. In this work, the structure and properties of lignin isolated from moso bamboo, wheat straw, and poplar wood by different treatment processes were compared. Results show that deep eutectic solvent (DES) extracted lignin exhibits well-preserved structures (including β-O-4, β-β, and β-5 linkages), a low molecular weight (M = 2300-3200 g/mol), and relatively homogeneous lignin fragments (1.

Multistage treatment of bamboo powder waste biomass: Highly efficient and selective isolation of lignin components.

Bamboo pulp and papermaking produce a lot of bamboo powder waste, and its resource utilization is of great significance for biomass refining and environmental protection. Here, we propose an integrated approach involving mechanical activation, hydrothermal extraction, and deep eutectic solvents (DESs) multiple delignification for the efficient separation of bamboo powder. Among seven carboxylic acids based DESs, choline chloride (ChCl)-lactic acid (La) DES (1:1) is the most effective, with over 78.

Insights into the relationships between physicochemical properties, solvent performance, and applications of deep eutectic solvents.

Deep eutectic solvent (DES) is regarded as a new generation of green solvent due to its distinctive and tailorable physicochemical properties, such as low volatility, strong solubility, biodegradability, low-cost, environment-friendly, and feasibility of the structural design. As an alternative to traditional organic solvents and ionic liquids (ILs), DESs have been widely applied in many fields, such as organic chemical synthesis, electrochemical deposition, material preparation, biomass catalytic conversion, extraction and separation, detection and analysis, nanotechnology, gas absorption, and drug delivery. In this paper, through in-depth discussion on factors influencing the physicochemical properties of DESs, we summarized the relations between their composition, structure, and performance.

DBU-Glycerol Solution: A CO Absorbent with High Desorption Ratio and Low Regeneration Energy.

1,8-Diazabicyclo[5.4.0]-undec-7-ene (DBU)-glycerol solution is employed as a promising CO absorbent.

The role of adsorbed oleylamine on gold catalysts during synthesis for highly selective electrocatalytic reduction of CO to CO.

The low-coordinated sites of electrocatalysts favour hydrogen evolution, while the edge sites are active for CO2 reduction. Oleylamine is used to stabilize nanoparticles by adsorbing on the low-coordinated sites. The hydrogen evolution reaction was dramatically suppressed and the FECO remained >93% from -0.

Enhanced hydrolysis of mechanically pretreated cellulose in water/CO system.

The aim of this work was to study promotion of ball milling and CO assistance on cellulose hydrolysis kinetics in water medium. Kinetic behaviors were analyzed based on first-order and shrinking core models. The results showed that cellulose hydrolysis is enhanced by ball milling and CO assistance.

An absorption mechanism and polarity-induced viscosity model for CO capture using hydroxypyridine-based ionic liquids.

A series of new hydroxypyridine-based ionic liquids (ILs) are synthesized and applied in CO capture through chemical absorption, in which one IL, i.e., tetrabutylphosphonium 2-hydroxypyridine ([P][2-Op]), shows a viscosity as low as 193 cP with an absorption capacity as high as 1.

Preparation of Silver Carbonate and its Application as Visible Light-driven Photocatalyst Without Sacrificial Reagent.

Visible light-driven photocatalyst is the current research focus and silver oxyacid salts with p-block elements are the promising candidates. In this research, Ag2 CO3 was prepared by a facile precipitation method and used to degrade the pollutants from waters. The results revealed that the silver carbonate with monoclinic structure quickly decomposed methyl orange and rhodamine B in less than 15 min under visible light irradiation.

A sustainable woody biomass biorefinery.

Woody biomass is renewable only if sustainable production is imposed. An optimum and sustainable biomass stand production rate is found to be one with the incremental growth rate at harvest equal to the average overall growth rate. Utilization of woody biomass leads to a sustainable economy.

Production of tung oil biodiesel and variation of fuel properties during storage.

The crude Tung oil with 4.72 mg KOH/g of acid value (AV) was converted by direct transesterification, and the reaction mixture was quantified. The phase distribution data showed that 38.

Preparation, application, and optimization of Zn/Al complex oxides for biodiesel production under sub-critical conditions.

Biodiesel produced by transesterification is a promising green fuel in the future. A new heterogeneous catalyst, Zn/Al complex oxide, was prepared for biodiesel production. The results showed that the catalyst derived from a hydrotalcite-like precursor with a zinc/aluminum atom ratio of 3.

Properties of Tung oil biodiesel and its blends with 0# diesel.

Tung oil was used to produce biodiesel by transesterification with methanol catalyzed by potassium hydroxide and the influence of the transesterification temperatures on the properties of the Tung oil biodiesel was investigated. FT-IR, UV, and GC-MS results indicated that the triconjugated double bonds of Tung oil were stable during the transesterification procedure between 25 and 60 degrees C. The results of properties showed that Tung oil biodiesel had a low cold filter plugging point (CFPP, -19 degrees C) and a higher kinetic viscosity (KV, 7.