0D/1D/2D architectural Co@C/MXene composite for boosting microwave attenuation performance in 2–18 GHz

Environmental pollution from critical materials loss from spent automotive lithium-ion batteries (LIBs) is a major global concern. Practical LIBs recycling obviates pollution, saves resources and boosts sustainability. However, despite increasing...

Toward practical lithium-ion battery recycling: adding value, tackling circularity and recycling-oriented design

Nanosheet-assembled porous MnCo2O4.5 microflowers as electrode material for hybrid supercapacitors and lithium-ion batteries.

MXenes with applications in supercapacitors and secondary batteries: A comprehensive review

Geopolymer composites can be used as a proper substitute for ordinary Portland cement, which can reduce carbon dioxide (CO2) emissions and make rational use of industrial waste. In this study, an investigation of the workability and compressive strength of geopolymer composites was carried out through a series of experiments, such as slump flow test, consistency meter test and compressive strength test, to clarify the interaction mechanism among superplasticizer (SP), polyvinyl alcohol (PVA) fiber, Nano-SiO2 (NS) and geopolymer composites, thereby improving the properties of engineered composites. The results showed that with the increase in PVA fiber content, the flowability of geopolymer composites decreased, while the thixotropy increased. With the increase in the NS content, the flowability of geopolymer composites first increased and then decreased, reaching its best at 1.0%, while the thixotropy was the opposite. With the increase in the SP content, the flowability of geopolymer composites increased, while the thixotropy decreased. A significant correlation between thixotropy and flowability of geopolymer composites was found (R2 > 0.85). In addition, the incorporation of single PVA fiber or NS significantly improved the compressive strength of geopolymer composites. Specifically, the compressive strength of geopolymer composites with 0.8% content PVA fiber (60.3 MPa) was 33.4% higher than that without PVA fiber (45.2 MPa), and the compressive strength of geopolymer composites with 1.5% content NS (52.6 MPa) was 16.4% higher than that without NS (45.2 MPa). Considering the synergistic effect, it is found that the compressive strength of geopolymer composites (58.5–63.3 MPa) was significantly higher than that without PVA fiber (45.2–52.6 MPa). However, the flowability and compressive strength of geopolymer composites were only slightly improved compared to that without NS. With the increase in the SP content, the compressive strength of geopolymer composites showed a trend of a slight decrease on the whole. Consequently, the results of this study may be useful for further research in the field of repair and prevention of the delamination of composite structures.

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Effect of Single and Synergistic Reinforcement of PVA Fiber and Nano-SiO2 on Workability and Compressive Strength of Geopolymer Composites

Evolving technological advances are predictable to promote environmentally sustainable development. Regardless the development of novel technologies including Li-ion batteries production, it is unrevealed whether emerging advances can cause lower environmental impacts compared to a future displaced developed technology. Therefore, a strong interest is triggered in the environmental consequences associated with the increasing existence of Lithium-ion battery (LIB) production and applications in mobile and stationary energy storage system. Various research on the possible environmental implications of LIB production and LIB-based electric mobility are available, with mixed results that are difficult to compare. Therefore, this paper provides a perspective of Life Cycle Assessment (LCA) in order to determine and overcome the environmental impacts with a focus on LIB production process, also the details regarding differences in previous LCA results and their consensus conclusion about environmental sustainability of LIBs. An overview of the analysis, the results and comparison of 80 selected studies is presented. This study also aims to adopt a scientific framework to LCA in order to identify the qualities and shortcomings of this method of analysis. Based on the results from reviewed studies, meta-analysis, different calculations and estimations of the environmental impacts of LIB production along with the outcomes of the different studies are also pointed out. Moreover, significance of key parameters for the environmental interpretation of not only Li-ion batteries but also next generation batteries is taken into account. 

Life Cycle Assessment of Lithium-ion Batteries: A Critical Review

Enhanced catalytic conversion of polysulfide using 1D CoTe and 2D MXene for heat-resistant and lean-electrolyte Li–S batteries

Formation mechanism of carbon dots: From chemical structures to fluorescent behaviors

Structure, up-conversion luminescence and optical temperature sensitive properties of glass ceramics containing Ca5(PO4)3F with double luminescence centers

Mona Saleh Alanazi

Papers

Life Cycle Assessment of Lithium-ion Batteries: A Critical Review

Enhanced catalytic conversion of polysulfide using 1D CoTe and 2D MXene for heat-resistant and lean-electrolyte Li–S batteries

Enhanced catalytic conversion of polysulfide using 1D CoTe and 2D MXene for heat-resistant and lean-electrolyte Li–S batteries

Formation mechanism of carbon dots: From chemical structures to fluorescent behaviors

Structure, up-conversion luminescence and optical temperature sensitive properties of glass ceramics containing Ca5(PO4)3F with double luminescence centers