|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Sediment provenance and evolution of the East Asian winter monsoon since 700 ka recorded by major elements in the West Philippine Sea显示文摘To synthetically realize the character of major-element compositions as well as its significance for provenance and paleoenvironment recorded in core sediments of the West Philippine Sea over the last 700 ka,grain size and major elements of 221 bulk sediments,together with major-element compositions in the detrital phase of 16 typical samples,in core MD06-3047 collected from the Benham Rise were analyzed.Both discrimination plot and R-mode factor analysis indicate that vertical changes of major elements are mainly controlled by the sedimentation of nearby volcanic matter and the eolian dust input,whereas influences from marine biologic deposition and hydrothermal activity are minor.In particular,Al2O3 and K2O are representative of an eolian dust factor.The variation in the eolian dust factor score is characterized by the obviously glacial-interglacial periodicity and can be well compared with the paleotemperature record of the Antarctic ice core and the evolution of the East Asian winter monsoon(EAWM) recorded in the Chinese loess sequence,and then offers a new proxy for the evolution history of eolian dust input into the study area that is controlled by the EAWM intensity and aridity in the continental source regions of atmospheric dust. | XU ZhaoKai LI TieGang YU XinKe LI AnChun TANG Zheng CHOI JinYong NAN QingYun | 2013 | Chinese Science Bulletin2013，58，9： | 7 |
| 2 | Metal-organic framework-derived Ni/ZnO nano-sponges with delicate surface vacancies as anode materials for high-performance supercapacitors显示文摘Ni/ZnO nano-sponges have been successfully synthesized through optimized annealing of Ni/Zn-based organic framework (Ni/Zn-MOF). The annealed MOF provides the stable carbon structure with 3D interconnection and prevents structural collapse during the charging and discharging process. The annealing causes the incorporation of intrinsic Ni^(3+) in the surface of NiO nanoparticles, providing more reaction active sites. The oxygen vacancies in ZnO and heterostructure interfaces between NiO and ZnO promote the charge transformation. Based on the aforementioned advantages, the Ni/ZnO nanocomposites exhibit excellent electrocatalytic performances for supercapacitors. The specific capacitance can reach to 807 F·g^(−1) at 1 A·g^(−1) in the studied electrodes. After 5,000 cycles at 10 A·g^(−1), the cyclic stability remains excellent at 86% of the initial capacitance. Moreover, the as-prepared asymmetric supercapacitor exhibits a high energy density of 30.6 W·h·kg^(−1) at power density of 398 W·kg^(−1). This study is expected to provide new insights into exploring the potential mechanism of catalyst action. | Anchun Tang Chubin Wan Xiaoyu Hu Xin Ju | 2021 | Nano Research2021，14，11： | 4 |
| 3 | Evolution of Asian drying since 30 Ma revealed by clay minerals record in the West Pacific and its tectonic-climatic forcing显示文摘As the second largest dust source on the globe,the tectonic and climatic evolution of continental Asia has an important impact on regional and global climate change.The West Pacific is the main sediment sink for eolian dust transported eastward from the Asian interior.Clay minerals,as the major fine-grained weathering products of continental rocks,can be readily transported by wind or currents over long distances and thus have been widely used in the reconstruction of paleoclimate and weathering history.However,the overall evolutionary tendency and response mechanism of clay mineral records over large spatial and long timescales across Asia remain unclear.Here,two continuous and high-resolution clay mineral records since 30 Ma were reconstructed from sediments at Deep Sea Drilling Program(DSDP)Sites 292 and 296 in the Philippine Sea.Clay minerals and Sr-Nd isotope compositions were used to constrain provenance and reconstruct the drying history of the dust source region since the Oligocene.The results show that the clay-sized detrital sediments in the Philippine Sea are a mixture of Asian eolian dust and volcanic materials from the West Pacific arcs.Based on the clay mineral compositions and eolian flux,we reveal that the Asian interior has been continuously drying since the late Oligocene and that stepwise enhanced aridification occurred at approximately 20,14,7,and 3 Ma.Compared with other regions of the world,the relative contents of illite and chlorite increased more dramatically in Asia during the late Cenozoic,and the inconsistency became more obvious at approximately 20 Ma.Since 3 Ma,illite and chlorite have increased consistently across the globe.Combined with the Asian tectonic and climatic history,we suggest that the increase in illite and chlorite from Asia between 20 and 3 Ma was mainly in response to the uplift of the Himalayan-Tibetan Plateau,whereas after 3 Ma,it was primarily controlled by global cooling driven by the expansion of the Arctic ice sheet. | Yi TANG Shiming WAN Debo ZHAO Zhaojie YU Zhaokai XU Jin ZHANG Zehua SONG Mengjun LI Hualong JIN Wenjun JIAO Hongkun DONG Anchun LI | 2023 | Science China Earth Sciences2023，66，6： | 0 |
| 4 | Oxygen vacancies confined in porous Co_(3)V_(2)O_(8)sheets for durable and high-energy aqueous sodium-ion capacitors显示文摘Sodium-ion capacitors have the potential to deliver high energy,power density,and excellent cycling stability.In this study,ultrathin Co_(3)V_(2)O_(8)nanosheets are successfully synthesized through an one-pot hydrothermal reaction and a subsequent doping reconfiguration-induced vacancy-forming process.Abundant oxygen vacancies and high porosity are observed in the Co_(3)V_(2)O_(8)electrode and result in excellent electrochemical performance in 1 M NaOH and Na_(2)SO_(4)electrolytes.The cathode has a large specific capacity(@NaOH),high-rate capability(@NaOH),wide voltage window(@Na_(2)SO_(4)),and favorable long-cycle stability.Ex-situ X-ray diffraction and X-ray photoelectron spectroscopy show that the Co_(3)V_(2)O_(8)electrode displays a battery-like behavior related to OH−ions in the alkaline NaOH electrolyte.By contrast,in the neutral Na_(2)SO_(4)electrolyte,Co_(3)V_(2)O_(8)mainly shows an intercalation/extraction behavior with Na+ions.Density functional theory calculation suggests that oxygen vacancy leads to a new state located in the bandgap,which greatly improves the electron transfer efficiency and reduces the sodiation energy barrier of Co_(3)V_(2)O_(8)in the neutral Na_(2)SO_(4)electrolyte.Moreover,when paired with a high-voltage activated carbon(AC)anode,full-cell Co_(3)V_(2)O_(8)//Na_(2)SO_(4)//AC delivers high energy/power densities(89.6 Wh·kg^(−1)/330 W·kg^(−1)). | Anchun Tang Chubin Wan Xianhe Meng Xiangcao Li Xiaoyu Hu Miaofeng Huang Xin Ju | 2022 | Nano Research2022，15，6： | 0 |
| 5 | Reproductive toxicity study with a novel deoxyguanosine analogue (Metacavir) in pregnant SD rats显示文摘我们的初步的研究证明 Metacavir 有潜力成为一个新 anti-HBV 代理人。在恒河猴, Metacavir 的有毒的效果的主要目标是胃肠的道,肝,血,和肾,它不与 mitochondrial 效果有关。在 Metacavir 的 intragastric 管理以后在怀孕 Sprague-Dawley 老鼠在这研究,母亲的毒性,胚胎胎儿的发展毒性和 teratogenicity 被学习(200, 100, 50, 0 mg/kg 身体重量) 在怀孕的开始的 615 天期间。更慢的重量获得从受到 200 mg/kg 剂量的 21 只老鼠在 5 被观察,以及 2 从 20 使遭到了到 100 mg/kg 剂量。与溶剂控制组相比,在 200 mg/kg 和 100 mg/kg 剂量的刻度重量获得分别地组织,在开始的 620 怀孕的天期间是显著地不同的(P P P < 0.05 ) ,当崽发生没显示出差别时。没有联系 Metacavir 的病理学的变化被观察。现在的研究在 200 mg/ 的剂量显示了那(kg 瀠瑡敩瑮 ? 捡楨癥摥猠' 咨 A 畦 ? 汣獯牵 ? 景琠敨物映獩畴慬琠慲瑣 ? 愠摮爠 ' 糖G镁?耶喩鼡疀 J? 湩漠敮瀠瑡敩瑮。 | Qihui Luo Zhengli Chen Anchun Cheng Mingshu Wang Jing Fang Xi Peng Li Tang | 2015 | Frontiers of Medicine2015，9，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员