Atmospheric pressure nonequilibrium plasma jet has been applied to the synthesis of [60]fullerene oxides (C60On) for the first time. C60O and C60O2 were produced and isolated in high yields up to 44% and 21%, respectively. The structural assignment of C60O was confirmed by comparison with the reported spectroscopic data. Theoretical calculations of 13C NMR chemical shifts for eight isomers of C60O2 were performed and compared with the experimental data to assign the most possible structure for the obtained C60O2 dominantly as an e isomer.
Molecular light-harvesting capabilities and the production of low-temperature heat output are essential for flexible self-heated textiles. An effective strategy to achieve these characteristics is to introduce photoresponsive molecular interactions (photodynamic bonds) to increase the energy storage capacity and optimize the low-temperature photochromic kinetics. In this study, a series of sulfonic-grafted azobenzene-based polymers interacted with different metal ions (PAzo-M, M = Mg, Ca, Ni, Zn, Cu, and Fe) to optimize the energy level and isomerization kinetics of these polymers is designed and prepared. Photoinduced formation and dissociation of MO dynamic bonds enlarge the energy gap (∆E) between trans and cis isomers for high-energy storage and favor a high rate of isomerization for low-temperature heat release. The suitable binding energy and high ∆E enable PAzo-M to store and release isomerization energy and bond enthalpy even in a low-temperature (-5 °C) environment. PAzo-Mg possesses the highest energy storage density of 408.6 J g
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Abstract In this study, peanut oil was prepared by cold pressing (temperature under 60 °C), hot pressing (temperature above 105 °C), and enzyme‐assisted aqueous extraction technology. Influences of an extraction technology on the oil fatty acid composition and the content of minor bioactive compounds, including tocopherols, polyphenols, and squalene, were investigated in detail. High‐fat‐diet Sprague–Dawley (SD) rat model was then established to probe the impact of cold‐pressed peanut oil (CPO), hot‐pressed peanut oil (HPO), and enzyme‐assisted aqueous‐extracted peanut oil (EAO) on lipid metabolism outcomes, to explore influences of different extraction technologies on lipid functional quality. Results showed that oleic acid was the predominate fatty acid in the EAO (52.57 ± 0.11%), which was also significantly higher ( P < 0.05) than CPO and HPO. The HPO showed higher total tocopherol and polyphenol contents (206.84 ± 6.93 mg/kg and 47.87 ± 6.50 mg GA/kg, respectively) than CPO and EAO ( P < 0.05). However, the squalene content in CPO was 475.47 ± 12.75 mg/kg, which was the highest among the three oils ( P < 0.05). The animal experiment results revealed that EAO could be more prone to induce lipid accumulation in the liver, which may likely to cause nonalcoholic fatty liver disease. However, the serum lipid profiles indicated that the CPO was more beneficial than the EAO and HPO in lowering the serum low‐density lipoprotein cholesterol, alanine aminotransferase, and aspartate aminotransferase contents, and increasing the high‐density lipoprotein cholesterol content. All of our efforts indicated that an extraction technology can affect the peanut oil lipid fatty acid composition, the bioactive compounds content, and, correspondingly, the lipid metabolism in SD rats.
Cyclo[60]fullerenes are widely used in many applications including photovoltaic devices owing to their high electron affinity and mobility for an organic molecule. However, their synthesis has been limited to certain derivatives with low yields. In this work, a fullerene-cation-mediated synthesis, accessing a new class of five-membered carbon ring cyclo[60]fullerenes with high yields of up to 93% is showcased. This method utilizes aryl[60]fullerene cations, ArC60+, as intermediates, which are generated in situ by heating the aryl[60]fullerenyl dimers in the presence of CuBr2. In addition, five-membered carbon ring cyclo[60]fullerenes display excellent device applicability when they are used in perovskite solar cells as over-coating layers of electron-transporting layers. A power conversion efficiency of 20.7% is achieved owing to the favorable energy alignment, optimized substrate design, and electrochemical stability of the five-membered carbon ring fullerenes.
This paper, based on 1978-2010 energy consumption and economic growth data, investigates the relationship between energy consumption and economic growth in Heilongjiang Province using co-integration and Granger causal test with vector error correction (VEC) model. The co-integration test reveals the long equilibrium relationship between economic growth and energy consumption in Heilongjiang and the long unidirectional causality from energy consumption to economic growth. The energy consumption promotes economic development in Heilongjiang Province. Finally, we give some suggestions on how to coordinated growth between economic growth and energy consumption in Heilongjiang Province.
Abstract A smart textile that could harvest mechanical‐energy for photo‐thermal energy utilization facilitates the development of a flexible self‐heating wearable device. This study presents novel triboelectric materials with a dynamic‐bond‐cross‐linking azobenzene‐based polymer (PAzo‐M) with diverse metal ions. The flexible nylon fabric coated with PAzo‐M (NF@PAzo‐M) serves as a friction layer of the photothermal triboelectric nanogenerator (PT‐TENG) to harvest human mechanical energy. The prepared PT‐TENG could exhibit a maximum open‐circuit voltage of up to 188.8 V with excellent electron loss capability because of its minimum vertical electron affinity of internal ion. And it can harvest mechanical energy from human motion (0.5–1 Hz) to drive the self‐powering irradiation of ultraviolet light or visible light, leading to the reversible isomerization of NF@PAzo‐M. The NF@PAzo‐M textile cyclically utilizes photo‐thermal energy for self‐heating. These results suggest new opportunities to harvest human mechanical energy for self‐powering multifunctional wearable devices for functions. image
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