Green Chemistry最新文献

Zinc powder (Zn-P) anodes are more ideal for Zn-ion batteries in practical industrial applications than the commonly used zinc foil anodes due to their low cost, good tunability and easy-processability. However, the Zn-P anodes with high contact surface area suffer from more serious side reactions than zinc foil. Herein, we synthesize an amorphous carbon coated zinc powder-based anode (C@Zn-P) for more homogeneous Zn deposition through a combined simple spraying and annealing method. As a result, the C@Zn-P anode exhibits long-term cycling stability over 600 h with low voltage hysteresis of 20 mV at 1 mA cm⁻² and 0.5 mA h cm⁻², which outperforms most previous results from commercial Zn foil and powder-based anodes. It is worth mentioning that a C@Zn-P||Ti asymmetric cell shows superior reversible properties and higher coulombic efficiency (CE) compared with the Zn||Ti asymmetric cell in plating/stripping of Zn. Moreover, the C@Zn-P anode matched with a multivalent vanadium-based oxide (MVO) cathode shows superior long-term cycling with a capacity retention (CR) of 81.4% after 1000 cycles. This result demonstrates that the Zn powder anode is a promising avenue for further development of rechargeable Zn-ion batteries.

Correction for ‘CO₂-derived non-isocyanate polyurethanes (NIPUs) and their potential applications’ by Rita Turnaturi et al., Green Chem., 2023, 25, 9574–9602, https://doi.org/10.1039/D3GC02796A.

The utilization of plant polyphenols as catalyst carriers holds promise for environmentally friendly catalysis. However, challenges such as the inhomogeneous distribution of organic ligands often hinder their effectiveness. In this study, lignin–metal supramolecular framework were formed through ionic coordination self-assembly, achieved by oxidative ammonolysis modified lignin. The specific spatial domain-limiting effect of lignin–metal supramolecular framework ensures the dispersion and stability of catalyst active sites. Carbon-coated trimetallic catalysts (Ru–FeNi@OALC) derived from lignin–metal supramolecules exhibit promising performance, with low overpotentials for the oxygen evolution reaction (OER, η₁₀ = 290 mV) and the hydrogen evolution reaction (HER, η₁₀ = 52 mV), surpassing commercial noble metal catalysts. Additionally, these catalysts demonstrate long-lasting water-splitting performance, highlighting their potential for sustainable catalytic reactions. Molecular simulations and DFT theoretical calculations elucidate the feasibility of lignin oxidative ammonolysis modification and reveal the coordination mechanism. Furthermore, the abundant defects and disorder in the coordination polymer-derived carbon materials optimize electron transfer processes and accelerate reaction kinetics. This construction strategy towards designable polyphenol–metal supramolecular framework presents a promising avenue for the green synthesis of a variety of metal/carbon composite catalysts, contributing to sustainable catalysis and environmental protection.

All-solid-state lithium batteries (ASSLBs) are increasingly regarded as one of the next-generation energy storage technologies, offering good abuse tolerance, a wide operating temperature range, and a simplified battery system suitable for automotive applications. In the pursuit of cost-effectiveness and battery thermal stability, LiFePO₄ (LFP) has recently attracted widespread attention in both industry and academia as a cathode active material for ASSLBs. However, the poor interfacial compatibility between the electrode and electrolytes has significantly hindered the development of LFP-based ASSLBs. In this study, an advanced Li₂ZrCl₆ (LZC) – Li_9.54Si_1.74P_1.4S_11.7Cl_0.3 (LiSiPSCl) bilayer electrolyte is rationally designed for LFP-based ASSLBs, aiming to simultaneously achieve favorable interfacial compatibilities with both the LFP cathode layer and alloy anode layer. As a result, the developed LFP-LZC/LZC/LiSiPSCl/Li–In ASSLB can not only deliver a high initial discharge capacity of 144.9 mA h g⁻¹, but also manifest a high-capacity retention up to 89% after 400 cycles at the current density of 1C. The strategy used in this work sheds light on a promising method to engineer stabilized interfaces for LFP-based ASSLBs.

The rising demand for natural gas (NG) and hydrogen, due to their lower carbon footprint and role in storing surplus renewable energy, has highlighted the focus on developing advanced storage technologies. Traditional methods like liquefaction and compression face high energy and safety challenges, prompting the exploration of new solutions. Among these, hydrate-based gas storage stands out for its environmental benefits, using clathrate hydrates to store gas with low energy consumption and carbon emissions. Furthermore, the composition of hydrates, predominantly water (∼85%), and their lack of by-products during repetitive storage–release cycles firmly establish them as environmentally friendly gas storage media. However, kinetic challenges such as stochastic nucleation, limitations in mass and heat transfer, and thermodynamic barriers arising from harsh hydrate formation conditions have hindered the practical application of hydrates. While mechanical methods to improve hydrate formation exist, their use significantly increases the demand for electrical energy. Therefore, developing methods for gas hydrate formation under static conditions is crucial for utilizing this material as a safe and green gas storage medium. This review examines theoretical studies and experimental efforts to enhance hydrate formation kinetics in static systems without additional mechanical methods. Thermodynamic hydrate promoters to increase the driving forces for hydrate formation under mild conditions, surface-modified materials to increase nucleation probabilities for shorter induction times, and porous materials to provide pathways for mass and heat transfer have been widely investigated. The discussion addresses the direction and necessary efforts for utilizing hydrate-based gas storage as a next-generation green technology.