14 research outputs found

    Interfacial “double-terminal binding sites” catalysts synergistically boosting the electrocatalytic Li2S redox for durable lithium-sulfur batteries

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    Catalytic conversion of polysulfides emerges as a promising approach to improve the kinetics and mitigate polysulfide shuttling in lithium-sulfur (Li-S) batteries, especially under conditions of high sulfur loading and lean electrolyte. Herein, we present a separator architecture that incorporates double-terminal binding (DTB) sites within a nitrogen-doped carbon framework, consisting of polar Co0.85Se and Co clusters (Co/Co0.85Se@NC), to enhance the durability of Li-S batteries. The uniformly dispersed clusters of polar Co0.85Se and Co offer abundant active sites for lithium polysulfides (LiPSs), enabling efficient LiPS conversion while also serving as anchors through a combination of chemical interactions. Density functional theory calculations, along with in situ Raman and X-ray diffraction characterizations, reveal that the DTB effect strengthens the binding energy to polysulfides and lowers the energy barriers of polysulfide redox reactions. Li-S batteries utilizing the Co/Co0.85Se@NC-modified separator demonstrate exceptional cycling stability (0.042% per cycle over 1000 cycles at 2 C) and rate capability (849 mAh g-1 at 3 C), as well as deliver an impressive areal capacity of 10.0 mAh cm-2 even in challenging conditions with a high sulfur loading (10.7 mg cm-2) and lean electrolyte environments (5.8 μL mg-1). The DTB site strategy offers valuable insights into the development of high-performance Li-S batteries

    A review of the genus Bullanga Navás, 1917 (Neuroptera: Myrmeleontidae)

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    Zhan, Qingbin, Wang, Xinli (2014): A review of the genus Bullanga Navás, 1917 (Neuroptera: Myrmeleontidae). Zootaxa 3872 (2): 195-200, DOI: 10.11646/zootaxa.3872.2.

    First record of the genus Bankisus Navás, 1912 in China, with the description of a new species (Neuroptera, Myrmeleontidae)

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    A new species of Bankisus Navás, 1912, (Bankisus sparsus sp. n.) is described and illustrated with the genus newly recorded from China. A key to species of Bankisus is provided

    Deutoleon Navas 1927

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    Deutoleon Navás, 1927 Deutoleon Navás, 1927: 19. Type species: Deutoleon turanicus Navás, 1927, by original designation. Diagnosis: Forewing vein CuP originates at or very near basal crossvein, 2 A runs close to 1 A for short distance, then bends at sharp angle toward 3 A, with seven presectoral crossveins. Hindwing with two presectoral crossveins. Hind tibial spurs well developed, at least twice as long as basitarsus. Male ectoproct without postventral lobe. Female without anterior gonapophyses. Male pilula axillaris always absent. Distribution: Asia, Europe.Published as part of Zhan, Qingbin, Li, Sha & Wang, Xinli, 2012, Synopsis of the antlion genus Deutoleon Navás, 1927 in China (Neuroptera: Myrmeleontidae), pp. 55-61 in Zootaxa 3275 on pages 55-56, DOI: 10.5281/zenodo.21193

    Deutoleon

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    Key to species of Deutoleon 1. Forewing veins yellow, without black spot at anastomosis of CuA 2 and CuP + 1 A, the black medial stripe with indistinct lateral branch on pronotum........................................................................... D. lineatus - Forewing veins black and yellow alternating, with one conspicuous spot at anastomosis of CuA 2 and CuP + 1 A, the black medial stripe with lateral branch on pronotum..................................................... D. turanicus Deutoleon lineatus (Fabricius, 1798 ) (Fig. 1 A)Published as part of Zhan, Qingbin, Li, Sha & Wang, Xinli, 2012, Synopsis of the antlion genus Deutoleon Navás, 1927 in China (Neuroptera: Myrmeleontidae), pp. 55-61 in Zootaxa 3275 on page 56, DOI: 10.5281/zenodo.21193

    Synopsis of the antlion genus Deutoleon Navás, 1927 in China (Neuroptera: Myrmeleontidae)

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    Zhan, Qingbin, Li, Sha, Wang, Xinli (2012): Synopsis of the antlion genus Deutoleon Navás, 1927 in China (Neuroptera: Myrmeleontidae). Zootaxa 3275: 55-61, DOI: 10.5281/zenodo.21193

    The complete mitochondrial genome of Orthaga achatina (Lepidoptera: Pyralidae)

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    Orthaga achatina Butler is an important pest of camphor trees in Asia. The complete mitochondrial genome of O. achatina was sequenced in this study, which was 15,150 bp in size and comprised of 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, and a control region. Besides, we used a phylogenomic approach to infer evolutionary relationships of O. achatina and 23 Lepidoptera species based on 13 conserved protein sequences of the mitochondrial genome. Our results underline the potential importance of mitochondrial genomes in comparative genomic analyses of Lepidoptera species and provide a robust evolutionary insight across the tree of Lepidoptera insects

    The complete mitochondrial genome of the pyrophilous jewel beetle Melanophila acuminata (Coleoptera: Buprestidae)

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    The complete mitochondrial of genome Melanophila acuminata (DeGeer 1774) is a typical double-stranded circular molecule of 15,853 bp (GenBank accession number: MW287594). All tRNA genes, ranging from 62 to 72 bp, can be folded into typical clover-leaf secondary structure except for tRNASer(AGN). The control region is 1,080 bp long with an A+T content of 87.5%. The phylogeny tree is monophyletic among 19 related species. The Melanophila acuminata cluster was more closely related to Chrysochroa fulgidissima. This mitochondrial genome can be used for further analyses of Buprestidae mitochondrial comparative genomics to improve the understanding of diverse coleopteran species

    The complete mitochondrial genome of the soldier fly Ptecticus aurifer

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    The pig body was put in the wild area in summer for collecting sarcosaphagous insects. After 31-day (9 June 2015 to 9 July 2015), the pig body was to be mummification. Ptecticus aurifer (Walker 1854) was found as sarcosaphagous insect for the first time. The complete mitochondrial genome of P. aurifer (Walker 1854) was sequenced in this study. The complete mitochondrial genome is a typical double-stranded circular molecule of 15,775 bp (GenBank accession number: MN604259) containing 37 typical animal mitochondrial gene and an A + T-rich region. 11 of the 22 tRNAs, ranging from 63 to 72 bp, can be folded into classic clover-leaf secondary structure except for tRNASer(AGN), in which the dihydrouridine (DHU) arm did not form a stable stem-loop structure. The control region is 954 bp long with an A + T content of 90.7%
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