Drawing upon the stimulus-organism-response framework and incorporating green trust and perceptions of information usefulness, we formulated a model to explore how marketing on social media impacts ...consumers’ intentions towards eco-friendly purchases, using eastern Chinese cities as a case study. The findings indicate that: (1) marketing on social media significantly boosts intentions for eco-friendly purchases, and green trust positively affects the perceptions of information usefulness. (2) Green trust and perceptions of information usefulness jointly act as mediators between social media marketing and eco-friendly purchase intentions, with green trust exhibiting a stronger effect (0.306 > 0.122). The multi-group analysis findings indicate significant disparities in several potential pathways as a result of moderating factors such as educational attainment, etc. The benefits are especially apparent in women, people with middle to high incomes, people with intermediate to high levels of education, and people who engage with social media for over three hours per day. Through the effect analysis between marketing on social media, green trust, and perceptions of information usefulness on consumers’ intentions towards eco-friendly purchases, this study offers insights to social media platforms, businesses, and policymakers, enabling them to enhance strategies for fostering eco-friendly consumer behavior through social media channels.
► A Li3N film with a thickness of more than 159.4 nm is obtained by the direct reaction between Li and N2 at room temperature. ► The Li3N protective film decreases the Li/electrolyte interface ...resistance and shortens the diffusion distance for Li ion from electrolyte to Li surface, Moreover, it enhances the Li cycling efficiency effectively. ► A dense and homogeneous Li layer deposits on the Li3N modified Li surface after cycling.
A lithium conductive Li3N film is successfully prepared on Li metal surface by the direct reaction between Li and N2 gas at room temperature. X-ray diffraction (XRD), Auger electron spectroscopy (AES), cyclic voltammetry (CV), scanning electron microscopy (SEM), AC impedance, cathodic polarization and galvanostatic charge/discharge cycling tests are applied to characterize the film. The experimental results show that the Li3N protective film is tight and dense with high stability in the electrolyte. Its thickness is more than 159.4nm and much bigger than that of a native SEI film formed on the lithium surface as received. An exchange current as low as 3.244×10−7A demonstrates the formation of a complete SEI film at the electrode|electrolyte interface with Li3N modification. The SEI film is very effective in preventing the corrosion of the Li electrode in liquid electrolyte, leading to a decreased Li|electrolyte interface resistance and an average short distance of 3.16×10−3cm for Li ion diffusion from electrolyte to Li surface. The Li cycling efficiency depends on N2 exposing time and is obviously enhanced by the Li3N (1h) modification. After cycling, a dense and homogeneous Li layer deposits on the Li3N (1h) modified Li surface, instead of a loose and inhomogeneous layer on the Li surface as received.
Green consumption (GC), as one of the important initiatives to achieve the goal of carbon peaking and carbon neutrality, has attracted widespread attention from scholars in environmental and economic ...fields. This article reviews the literature on GC, asking two main questions: how can GC research be analyzed from macro, meso, and micro perspectives? How have the research topics in the field of GC evolved in international and Chinese academia? This study makes a visual analysis of knowledge domain based on the literature of Web of Science Core Collection and China National Knowledge Infrastructure, so as to reveal hot topics, stage division, and research trend of GC research. The results revealed the following: GC research is in a period of rapid growth, and it is mainly distributed in developed countries dominated by the USA and in developing countries dominated by China. There is a trend of interdisciplinary research on GC, such as ecology, psychology, health, systematics, politics, and economics, which indicates that GC research has become increasingly inseparable from human survival and health, psychological acceptance, and social development. For the international academia, GC research pays more attention to the transformation of consumer psychology, while the Chinese academia is more concerned with the regulation of consumer behavior and the activation of green emotions. Considering the focus and characteristics of GC supervision, this study proposes GC 3.0 with a consumer-oriented and emphasizing green emotions and proposes future application scenarios from four aspects: government supervision, social self-regulation, enterprise demonstration, and personal self-monitoring.
Polypyrrole functional interlayer is in-situ fabricated uniformly onto the surface of sulfur cathode to inhibit the dissolution of lithium polysulfides and protect sulfur cathode. Li–S battery with ...the functional inlayer shows an encouraging electrochemical performance. The initial discharge capacity is 719 mAh g−1 and the capacity retains at 846 mAh g−1 even after 200 cycles at 0.2C with an average coulombic efficiency of 94.2%. Moreover, the discharge capacities are 703 mAh g−1 and 533 mAh g−1 at 1C and 2C respectively even after 300 cycles.
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•Polypyrrole functional interlayer (PFIL) was in-situ fabricated uniformly onto the surface of sulfur cathode.•Polypyrrole functional interlayer improve the cycling performance of Li–S batteries significantly.•This work is focused on the structural design of novel interlayer for Li–S batteries.
A sulfur cathode is designed with three-dimensional (3D) cubic mesoporous carbon CMK-8 as the matrix of sulfur, and polypyrrole (PPY) as the wrapping layer. CMK-8 provides perfect 3D conductive ...network. Furthermore, PPY is coated onto the surface of CMK-8/sulfur (CMK-8/S) composite to inhibit the migration of lithium polysulfide and offer better lithium ion conductive channels. The microstructure and electrochemical performance of the PPY@CMK-8/sulfur (PPY@CMK-8/S) cathode are investigated systematically. The results show that PPY layer with about 50 nm thickness is coated uniformly on the surface of CMK-8/S. The Li–S battery with PPY@CMK-8/S as cathode material presents a discharge capacity of 937.8 mAh g−1 at 20 cycles and is stabilized at about 860 mAh g−1 after 100 cycles at 0.2C.
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•A novel approach for high-rate lithium sulfur batteries.•3D cubic mesoporous carbon CMK-8 was used as the matrix of the sulfur.•A wrapping microstructure was designed and obtained with PPy as the coating layer of the CMK-8/S composite.•This work makes much sense to the structure designing of novel sulfur-based materials.
The COVID-19 pandemic is a public health emergency, which continues to have a significant impact on the functioning of society and the public’s daily life. From the perspective of psychological ...distance (PD), this study used descriptive, differential, and spatial autocorrelation analysis methods to explore the cognitive distance, emotional distance, expected distance and behavioral distance of the Chinese public in relation to the COVID-19 pandemic. An analysis of 4042 valid sample data found that: (1) The event emotional distance and subject emotional distance were both furthest from the event and subject psychological distance dimensions, and anger about the event was the strongest. (2) The government was the most appealing subject in the process of pandemic prevention and control, but at the same time, the public’s sense of closeness to the government was also lower than that of the other three subjects, e.g., medical institutions. (3) Different pandemic regions showed significant differences in PD. Mean scores of PD in each risk region were as follows: High-risk regions > medium-risk regions > low-risk regions. (4) From a global perspective, no spatial autocorrelation was found in PD. However, from a local perspective, high-value regions (provinces with distant PD) are mainly concentrated in the southern regions (Guizhou, Guangxi, Hainan, Jiangxi), and low-value regions (provinces with close PD) are mainly concentrated in North China (Shanxi, Hebei, Beijing). Combined with the relevant conclusions, this paper put forward policy recommendations.
Chloride ion batteries (CIB) are considered to be one of the most promising energy storage devices. As cathode materials for CIBs, metal chlorides have many advantages, such as high theoretical ...energy density, abundant elemental resources and ideal discharge voltage plateau. However, the dissolution and huge volume change of metal chlorides during cycling lead to considerable short lifespan, which limits their potential application for CIBs. Herein, the bismuth chloride nanocrystal is confined in mesocellular carbon foam matrix by a new vacuum impregnation approach. The mesocellular carbon foam with large interconnected pores (15.7 or 23.2 nm) may buffer the large volume variation of bismuth chloride during charge and discharge, giving rise to significantly enhanced electrochemical performance. The as-prepared bismuth chloride@mesocellular carbon foam cathode delivered an initial discharge capacity of 298 mAh/g and a reversible capacity of 91 mAh/g after 60 cycles. In contrast, the pure bismuth chloride cathode almost cannot discharge after 30 cycles. This is the first report that the metal chloride cathode can achieve a prolonged cycling in CIBs.
The bismuth chloride nanocrystal is confined in mesocellular carbon foam matrix by a new vacuum impregnation approach for chloride ion batteries. A reversible capacity of 91 mAh/g after 60 cycles was achieved for the bismuth chloride@mesocellular carbon foam cathode. Display omitted
► A core/shell structure of PPy–MWCNT composite was prepared. ► The conductivity and specific area of the PPy–MWCNT composite were influenced by the PPy content. ► ca. 725.8mAhg−1 at 100th cycle was ...obtain for Li/S battery based on S/PPy–MWCNT with 25wt.% PPy.
A core/shell structure of polypyrrole (PPy) and multi walled carbon tube (MWCNT) composite is proposed. The PPy is introduced to the surface of MWCNT by an in situ polymerization of pyrrole with FeCl3 as the oxidizing agent. The structures of the PPy–MWCNT composites are analyzed by Raman spectra. The surface area of the PPy–MWCNT composite increases with the increase of the PPy content in the composite. Adversely, the conductivity of the S/PPy–MWCNT decreases. The MWCNT provides the high electronic conductive network. Meanwhile, the PPy with high surface area ensures an uniform dispersion of the sulfur. As a result, S/PPy–MWCNT with 25wt.% PPy shows the discharge capacity of 725.8mAhg−1 after 100cycles.
Sulfur was highly combined with two types of polypyrrole (PPy) in granular (G-PPy) and tubular(T-PPy) morphology by in-situ oxidation and co-heating methods. The morphology of polypyrrole shows a ...significant effect on the dispersion status and electrochemical behaviors of the sulfur. A stable capacity close to 500
mAh/g was maintained over 60 cycles for the S/T-PPy composite. Electrochemical measurement results suggest that the S/T-PPy composite is obviously superior to the S/G-PPy composite. It is suggested that the as-proposed tubular PPy could be a promising electric matrix for sulfur active host for a high energy density lithium–sulfur battery.
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