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| 1 | Arc corrosion behavior of Cu-Ti_3AlC_2 composites in air atmosphere显示文摘The arc corrosion evolution of Cu-20 vol.% Ti_3 AlC_2 cathodes is presented here. After eroded by 3, 4, 5, 6, 7, 8, 9, 10 kV DC voltage, respectively, the surface morphologies were characterized by field emission scanning electron microscope with craters and protrusions. Compared to small craters and dense protrusions of the morphology by high voltage, the eroded surface was covered with bigger craters and sparse protrusions at low voltage. No crack was discovered on the surface even at 10 kV. By means of energy dispersive spectroscopy and Raman spectroscopy, the decomposition of Cu-20 vol.% Ti_3 AlC_2 cathode to CuO,Al__2 O_3 and TiO_2 were proved. Meanwhile, W anode is oxidized to WO_2. The peak current increases with the increasing breakdown voltage, which is recorded by a digital memory oscilloscope. | HUANG XiaoChen FENG Yi QIAN Gang ZHAO Hao SONG ZhaoKun ZHANG JingCheng ZHANG XueBin | 2018 | Science China(Technological Sciences)2018，61，4： | 6 |
| 2 | Melamine modified carbon felts anode with enhanced electrogenesis capacity toward microbial fuel cells显示文摘Surface electropositivity and low internal resistance are important factors to improve the anode performance in microbial fuel cells(MFCs). Nitrogen doping is an effective way for the modification of traditional carbon materials. In this work, heat treatment and melamine were used to modify carbon felts to enhance electrogenesis capacity of MFCs. The modified carbon felts were characterized using X-ray photoelectron spectroscopy(XPS), scanning electron microscope(SEM), atomic force microscopy(AFM)and malvern zeta potentiometer. Results show that the maximum power densities under heat treatment increase from 276.1 to 423.4 m W/m^2(700 °C) and 461.5 m W/m^2(1200 °C) and further increase to472.5 m W/m^2(700 °C) and 515.4 m W/m^2(1200 °C) with the co-carbonization modification of melamine.The heat treatment reduces the material resistivity, improves the zeta potential which is beneficial to microbial adsorption and electron transfer. The addition of melamine leads to the higher content of surface pyridinic and quaternary nitrogen and higher zeta potential. It is related to higher MFCs performance. Generally, the melamine modification at high temperature increases the feasibility of carbon felt as MFCs' s anode materials. | Yang'en Xie Zhaokun Ma Huaihe Song Zachary A.Stoll Pei Xu | 2017 | Journal of Energy Chemistry2017，26，1： | 5 |
| 3 | Three-dimensional thermal conductive behavior of graphite materials sintered from ribbon mesophase pitch-based fibers显示文摘 | Zhaokun Ma Lang Liu Feng Lian Huaihe Song Jie Liu | 2011 | Materials Letters2011，，1： | 1 |
| 4 | Carbon with high thermal conductivity, prepared from ribbon-shaped mesophase pitch-based fibers显示文摘 | Ma Zhaokun Shi Jingli Song Yan | 2006 | Carbon2006，44，7： | 1 |
| 5 | Carbon with high thermal conductivity,prepared from ribbon-shaped mesosphase pitch-based fibers显示文摘 | Zhaokun Ma Jingli Shi Yah Song Quangui Guo Gengtai Zhai Lang Liu | 2006 | Carbon2006，44，： | 1 |
| 6 | Carbon with high thermal conductivity,prepared from ribbon-shaped mesosphase pitch-based fibers显示文摘 | Jingli Shi Yan Song Quangui Guo Gengtai Zhai and Lang Liu | 2006 | Carbon2006，44，7： | 1 |
| 7 | Characterization of Fe/N-doped graphene as air-cathode catalyst in microbial fuel cells显示文摘This work proposed a simple and efficient approach for synthesis of durable and efficient non-precious metal oxygen reduction reaction(ORR) electro-catalysts in MFCs. The rod-like carbon nanotubes(CNTs)were formed on the Fe–N/SLG sheets after a carbonization process. The maximum power density of1210 ± 23 m W·m^(-2) obtained with Fe–N/SLG catalyst in an MFC was 10.7% higher than that of Pt/C catalyst(1080 ± 20 mW ·m^(-2)) under the same condition. The results of RDE test show that the ORR electron transfer number of Fe–N/SLG was 3.91 ± 0.02, which suggested that ORR catalysis proceeds through a four-electron pathway. The whole time of the synthesis of electro-catalysts is about 10 h, making the research take a solid step in the MFC expansion due to its low-cost, high efficiency and favorable electrochemical performance. Besides, we compared the electrochemical properties of catalysts using SLG, high conductivity graphene(HCG, a kind of multilayer graphene) and high activity graphene(HAG, a kind of GO) under the same conditions, providing a solution for optimal selection of cathode catalyst in MFCs.The morphology, crystalline structure, elemental composition and ORR activity of these three kinds of Fe–N/C catalysts were characterized. Their ORR activities were compared with commercial Pt/C catalyst.It demonstrates that this kind of Fe–N/SLG can be a type of promising highly efficient catalyst and could enhance ORR performance of MFCs. | Dingling Wang Zhaokun Ma Yang’en Xie Huaihe Song | 2017 | Journal of Energy Chemistry2017，26，6： | 1 |
| 8 | The high-quality sequencing of the Brassica rapa‘XiangQingCai’genome and exploration of genome evolution and genes related to volatile aroma显示文摘‘Vanilla’(XQC,brassica variety chinensis)is an important vegetable crop in the Brassica family,named for its strong volatile fragrance.In this study,we report the high-quality chromosome-level genome sequence of XQC.The assembled genome length was determined as 466.11 Mb,with an N50 scaffold of 46.20 Mb.A total of 59.50%repetitive sequences were detected in the XQC genome,including 47570 genes.Among all examined Brassicaceae species,XQC had the closest relationship with B.rapa QGC(‘QingGengCai’)and B.rapa Pakchoi.Two whole-genome duplication(WGD)events and one recent whole-genome triplication(WGT)event occurred in the XQC genome in addition to an ancient WGT event.The recent WGT was observed to occur during 21.59-24.40 Mya(after evolution rate corrections).Our findings indicate that XQC experienced gene losses and chromosome rearrangements during the genome evolution of XQC.The results of the integrated genomic and transcriptomic analyses revealed critical genes involved in the terpenoid biosynthesis pathway and terpene synthase(TPS)family genes.In summary,we determined a chromosome-level genome of B.rapa XQC and identified the key candidate genes involved in volatile fragrance synthesis.This work can act as a basis for the comparative and functional genomic analysis and molecular breeding of B.rapa in the future. | Zhaokun Liu Yanhong Fu Huan Wang Yanping Zhang Jianjun Han Yingying Wang Shaoqin Shen Chunjin Li Mingmin Jiang Xuemei Yang Xiaoming Song | 2023 | Horticulture Research2023，10，10： | 0 |
| 9 | Enhancing maize's nitrogen-fixing potential through ZmSBT3, a gene suppressing mucilage secretion∞显示文摘Maize(Zea mays)requires substantial amounts of nitrogen,posing a challenge for its cultivation.Recent work discovered that some ancient Mexican maize landraces harbored diazotrophic bacteria in mucilage secreted by their aerial roots.To see if this trait is retained in modern maize,we conducted a field study of aerial root mucilage(ARM)in 258 inbred lines.We observed that ARM secretion is common in modern maize,but the amount significantly varies,and only a few lines have retained the nitrogen‐fixing traits found in ancient landraces.The mucilage of the high‐ARM inbred line HN5‐724 had high nitrogen‐fixing enzyme activity and abundant diazotrophic bacteria.Our genome‐wide association study identified 17 candidate genes associated with ARM across three environments.Knockouts of one candidate gene,the subtilase family gene ZmSBT3,confirmed that it negatively regulates ARM secretion.Notably,the ZmSBT3 knockout lines had increased biomass and total nitrogen accumulation under nitrogen‐free culture conditions.High ARM was associated with three ZmSBT3 haplotypes that were gradually lost during maize domestication,being retained in only a few modern inbred lines such as HN5‐724.In summary,our results identify ZmSBT3 as a potential tool for enhancing ARM,and thus nitrogen fixation,in maize. | Jingyang Gao Peijiang Feng Jingli Zhang Chaopei Dong Zhao Wang Mingxiang Chen Zhongliang Yu Bowen Zhao Xin Hou Huijuan Wang Zhaokun Wu Razia Sultana Jemim Haidong Yu Doudou Sun Pei Jing Jiafa Chen Weibin Song Xuecai Zhang Zijian Zhou Jianyu Wu | 2023 | Journal of Integrative Plant Biology2023，65，12： | 0 |
| 10 | Selective liquid directional steering enabled by dual-scale reentrant ratchets显示文摘Achieving well-controlled directional steering of liquids is of great significance for both fundamental study and practical applications, such as microfluidics, biomedicine, and heat management. Recent advances allow liquids with different surface tensions to select their spreading directions on a same surface composed of macro ratchets with dual reentrant curvatures. Nevertheless, such intriguing directional steering function relies on 3D printed sophisticated structures and additional polishing process to eliminate the inevitable microgrooves-like surface deficiency generated from printing process, which increases the manufacturing complexity and severally hinders practical applications. Herein, we developed a simplified dual-scale structure that enables directional liquid steering via a straightforward 3D printing process without the need of any physical and chemical post-treatment. The dual-scale structure consists of macroscale tilt ratchet equipped with a reentrant tip and microscale grooves that decorated on the whole surface along a specific orientation. Distinct from conventional design requiring the elimination of microgrooves-like surface deficiency, we demonstrated that the microgrooves of dual-scale structure play a key role in delaying or promoting the local flow of liquids, tuning of which could even enable liquids select different spreading pathways. This study provides a new insight for developing surfaces with tunable multi-scale structures, and also advances our fundamental understanding of the interaction between liquid spreading dynamics and surface topography. | Jing Sun Xuezhi Qin Yuxin Song Zhenyu Xu Chao Zhang Wei Wang Zhaokun Wang Bin Wang Zuankai Wang | 2023 | International Journal of Extreme Manufacturing2023，5，2： | 0 |
| 11 | Effect of aluminum on microstructure and magnetic properties of sintered Nd-Fe-B magnets processed by grain boundary diffusion of Tb-Al显示文摘The grain boundary diffusion process(GBDP)of Tb can improve the coercivity of sintered Nd-Fe-B magnets.In this study,the effect of AI on the diffusion of Tb in the GBDP was investigated.The content of diffused Tb-Al was precisely controlled by adjusting the magnetron sputtering process.The Tb equivalent of Al was also studied.Results show that AI promotes the diffusion of Tb deeper into the magnet,reducing the thickness of the shell in the core-shell structure.This study is helpful for further developing the process,reducing the consumption of heavy rare earth elements(Tb),and improving the coercivity of sintered Nd-Fe-B magnets. | Tinghui Wang Zhaokun Ma Qihang Zhu Lijing Yang Baosheng Liu Yu Zhao Cheng Xu Bizhang Zheng Fangqin Hu Jianzhong Li Qingfang Huang Zhenlun Song | 2023 | Journal of Rare Earths2023，41，5： | 0 |
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