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Upgrading CO_(2) into acetate on Bi_(2)O_(3)@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis 被引量:3
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作者 Xiaojing Liu Kang zhang +6 位作者 Yidan Sun shukang zhang Zhenyu Qiu Tianshun Song Jingjing Xie Yuping Wu Yuhui Chen 《SusMat》 2023年第2期235-247,共13页
Upgrading of atmospheric CO_(2) into high-value-added acetate using renewable electricity via electrocatalysis solely remains a great challenge.Here,inspired by microbial synthesis via biocatalysts,we present a couple... Upgrading of atmospheric CO_(2) into high-value-added acetate using renewable electricity via electrocatalysis solely remains a great challenge.Here,inspired by microbial synthesis via biocatalysts,we present a coupled system to produce acetate from CO_(2) by bridging inorganic electrocatalysis with microbial synthesis through formate intermediates.A 3D Bi_(2)O_(3)@CF integrated electrode with an ice-sugar gourd shape was fabricated via a straightforward hydrothermal synthesis strategy,wherein Bi_(2)O_(3) microspheres were decorated on carbon fibers.This ice-sugar gourd-shaped architecture endows electrodes with multiple structural advantages,including synergistic contribution,high mass transport capability,high structural stability,and large surface area.Consequently,the resultant Bi_(2)O_(3)@CF exhibited a maximum Faradic efficiency of 92.4%at−1.23 V versus Ag/AgCl for formate generation in 0.5 M KHCO_(3),exceeding that of Bi_(2)O_(3)/CF prepared using a conventional electrode preparation strategy.Benefiting from the high formate selectivity,unique architecture,and good biocompatibility,the Bi_(2)O_(3)@CF electrode attached with enriched CO_(2)-fixing electroautotrophs served as a biocathode.As a result,a considerable acetate yield rate of 0.269±0.009 g L^(−1) day^(−1)(a total acetate yield of 3.77±0.12 g L^(−1) during 14-day operation)was achieved in the electrochemical–microbial system equipped with Bi_(2)O_(3)@CF. 展开更多
关键词 ACETATE Bi_(2)O_(3)@CF CO_(2)conversion electrocatalysis-microbial synthesis FORMATE
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An oviraptorid preserved atop an embryo-bearing egg clutch sheds light on the reproductive biology of non-avialan theropod dinosaurs 被引量:1
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作者 Shundong Bi Romain Amiot +8 位作者 Claire Peyre de Fabrègues Michael Pittman Matthew C.Lamanna Yilun Yu Congyu Yu Tzuruei Yang shukang zhang Qi Zhao Xing Xu 《Science Bulletin》 SCIE EI CSCD 2021年第9期947-954,M0004,共9页
Recent studies demonstrate that many avialan features evolved incrementally prior to the origin of the group,but the presence of some of these features,such as bird-like brooding behaviours,remains contentious in non-... Recent studies demonstrate that many avialan features evolved incrementally prior to the origin of the group,but the presence of some of these features,such as bird-like brooding behaviours,remains contentious in non-avialan dinosaurs.Here we report the first non-avialan dinosaur fossil known to preserve an adult skeleton atop an egg clutch that contains embryonic remains.The preserved positional relationship of the adult to the clutch,coupled with the advanced growth stages of the embryos and their high estimated incubation temperatures,provides strong support for the brooding hypothesis.Furthermore,embryos in the clutch are at different developmental stages,suggesting the presence of asynchronous hatching—a derived feature even among crown-group birds—in non-avialan theropods.These findings demonstrate that the evolution of reproductive biology along bird-line archosaurs was a complex rather than a linear and incremental process,and suggest that some aspects of non-avialan theropod reproduction were unique to these dinosaurs. 展开更多
关键词 Oviraptorosauria Cretaceous CLUTCH BROODING Embryos Asynchronous hatching
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