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| 1 | Differences of hormones involved in adipose metabolism and lactation between high and low producing Holstein cows during heat stress显示文摘The experiment was conducted to evaluate hormonal involvement in the adipose metabolism and lactation between high and low producing dairy cows in a hot environment. Forty Holstein healthy cows with a similar parity were used and assigned into high producing group(average production41.44 ± 2.25 kg/d) and low producing group(average production 29.92 ± 1.02 kg/d) with 20 cows in each group. Blood samples were collected from caudal vein to determine the difference of hormones related to adipose metabolism and lactation. The highest, lowest, and average temperature humidity index(THI),recorded as 84.02, 79.35 and 81.89, respectively, indicated that cows were at the state of high heat stress.No significant differences between high and low producing groups were observed in the levels of nonestesterified fatty acid(NEFA), β-hydroxy butyrate(β-OHB), total cholesterol(TCHO), and insulin(INS)(P > 0.05). However, the very low density lipoprotein(VLDL), apolipoprotein B100(apoB-100), highdensity lipoprotein(HDL-C) and estrogen(E2) concentrations in high producing group were significantly higher than those of low producing group(P < 0.05). No significant differences between high and low producing groups were observed in the levels of prolactin(PRL) and progesterone(PROG)(P > 0.05),whereas high producing group had a rise in the insulin-like growth factor-1(IGF-1) level compared with low producing group(P < 0.05). These results indicated that, during summer, high and low producing dairy cows have similar levels of lipid catabolism, but high producing dairy cows have advantages in outputting hepatic triglyceride(TG). | Mingzi Qu Shengjuan Wei Zhiqiang Chen Guangmeng Wang Yue Zheng Peishi Yan | 2015 | Animal Nutrition2015，，4： | 4 |
| 2 | ZIF-67 derived hollow Ni-Co-Se nano-polyhedrons for flexible hybrid supercapacitors with remarkable electrochemical performances显示文摘Nano-polyhedral NiSe2/CoSe2(Ni-Co-Se) with hollow architectures are synthesized by selenizing the precursors of Ni-Co bimetallic hydroxides that are directly derived from ZIF-67.The as-fabricated Ni-Co-Se electrodes exhibit high specific capacitance of 1668 F/g at 1 A/g accompanying with outstanding rate capability(about 82.8% retention of the initial capacity at 20 A/g).The corresponding Ni-Co-Se//AC all-solid-state hybrid supercapacitors are assembled by directly using the Ni-Co-Se on carbon fabric as the positive electrode,which deliver high energy density and power density(38.5 Wh/kg at 802.1 W/kg,32.0 Wh/kg at 8008.8 W/kg),excellent cyclic stability(82.3% retention after 5000 cycle) and robust mechanical flexibility(no obvious attenuation at bending to different angles).This work will provide a new and smart route for constructing transition metal selenides for supercapacitor devices. | Guangmeng Qu Xixi Zhang Guotao Xiang Yunrui Wei Jiangmei Yin Zonghua Wang Xiaoli Zhang Xijin Xu | 2020 | Chinese Chemical Letters2020，31，7： | 3 |
| 3 | Nickel/cobalt based materials for supercapacitors显示文摘The electrode materials as the key component of supercapacitors have attracted considerable research interests, especially for nickel/cobalt based materials by virtue of their superior electrochemical performance with multiple oxidation states for richer redox reactions, abundant natural resources, lower prices and toxicity. There are many advanced electrodes based on the nickel/cobalt materials exploited for the application of supercapacitors, however, some controversial statements have induced some confusion. Herein, we refine the mechanism of energy storage for the nickel/cobalt based materials for supercapacitors and reclassify them into battery-type materials with the corresponding devices named as hybrid supercapacitors. | Chenggang Wang Pengxiao Sun Guangmeng Qu Jiangmei Yin Xijin Xu | 2018 | Chinese Chemical Letters2018，29，12： | 2 |
| 4 | An integrated approach to configure rGO/VS_(4)/S composites with improved catalysis of polysulfides for advanced lithium-sulfur batteries显示文摘Lithium-sulfur(Li-S)battery is labeled as a promising high-energy-density battery system,but some inherent drawbacks of sulfur cathode materials using relatively complicated techniques impair the practical applications.Herein,an integrated approach is proposed to fabricate the high-performance rGO/VS_(4)/S cathode composites through a simple one-step solvothermal method,where nano sulfur and VS_(4) particles are uniformly distributed on the conductive rGO matrix.rGO and sulfiphilic VS_(4)provide electron transfer skeleton and physical/chemical anchor for soluble lithium polysulfides(LiPS).Meanwhile,VS_(4) could also act as an electrochemical mediator to efficiently enhance the utilization and reversible conversion of LiPS.Correspondingly,the rGO/VS_(4)/S composites maintain a high reversible capacity of 969 mAh/g at 0.2 C after 100 cycles,with a capacity retention rate of 82.3%.The capacity fade rate could lower to 0.0374%per cycle at 1 C.Moreover,capacity still sustains 795 m Ah/g after 100 cycles in the relatively high-sulfurloading battery(6.5 mg/cm^(2)).Thus,the suggested method in configuring the sulfur-based composites is demonstrated a simple and efficient strategy to construct the high-performance Li-S batteries. | Feng Li Lu Wang Guangmeng Qu Peiyu Hou Linglong Kong Jinzhao Huang Xijin Xu | 2022 | Chinese Chemical Letters2022，33，8： | 1 |
| 5 | Defect engineering in Co-doped Ni_(3)S_(2) nanosheets as cathode for high-performance aqueous zinc ion battery显示文摘With the merits of low cost,environmental benignity,and high safety,aqueous zinc ion batteries(AZIBs)have great potential in the field of energy storage.In this paper,we craft a Co-doped Ni3 S2 with abundant sulfur vacancies as effective cathode materials(Co-Ni_(3) S_(2-x)) for AZIBs by hydrothermal and chemical reduction method.Notably,cobalt doping and abundant sulfur vacancies can effectively increase the conductivity and the number of active sites for electrochemical reactions,which gives the Co-Ni_(3) S_(2-x) electrode the outstanding capability to energy storage.By coupling Co-Ni_(3) S_(2-x) cathode with Zn anodes to assemble alkaline AZIBs,the Co-Ni_(3) S_(2-x)//Zn full battery exhibits excellent specific capacity(183.9 mAh g^(-1) at 1 A g^(-1),based on cathode mass) and extraordinary cycling durability(72.9% capacity retention after 6000 cycles).First-principles calculations based on density functional theory(DFT) confirm that the Co-Ni_(3) S_(2-x) electrode has strong energy storage capacity and electrochemical stability.The results provide an extremely significant reference in designs of self-supported bimetallic sulfide nanosheets,which have promising applications in high-performance energy storage devices. | Xiaojuan Li Shunshun Zhao Guangmeng Qu Xiao Wang Peiyu Hou Gang Zhao Xijin Xu | 2022 | Journal of Materials Science & Technology2022，，23： | 0 |
| 6 | Highly robust zinc metal anode directed by organic–inorganic synergistic interfaces for wearable aqueous zinc battery显示文摘Flexible aqueous zinc batteries(FAZBs)with high safety and environmental friendliness are promising smart power sources for smart wearable electronics.However,the bare zinc anode usually suffers from damnable dendrite growth and rampant side reaction on the surface,greatly impeding practical applications in FAZBs.Herein,a composite polymer interface layer is artificially self‐assembled on the surface of the zinc anode by graft‐modified fluorinated monomer(polyacrylic acid‐2‐(Trifluoromethyl)propenoic acid,PAA‐TFPA),on which an organic–inorganic hybrid(PAA‐Zn/ZnF2)solid electrolyte interface(SEI)with excellent ionic conductivity is formed by interacting with Zn2+.Both the pouch cell and fiber zinc anode exhibit excellent plating/stripping reversibility after protecting by this organic–inorganic SEI,which can be stably cycled more than 3000 h in symmetric Zn||Zn cells or 550 h in fiber Zn||Zn cells.Additionally,this interface layer preserves zinc anode with excellent mechanical durability under various mechanical deformation(stably working for another 1200 h after bending 100 h).The corresponding PAA‐Zn/ZnF2@Zn||MnO2 full cell displays an ultra‐long life span(79%capacity retention after 3000 cycles)and mechanical robustness(85%of the initial capacity for another 3000 cycles after bending 100 times).More importantly,the as‐assembled cells can easily power smart wearable devices to monitor the user's health condition. | Xixi Zhang Chuanlin Li Guangmeng Qu Chenggang Wang Shunshun Zhao Tongkai Wang Na Li Xiaojuan Li Xijin Xu | 2024 | SmartMat2024，5，1： | 0 |
| 7 | Amorphous Ni-Co-S nanocages assembled with nanosheet arrays as cathode for high-performance zinc ion battery显示文摘The selection and development of cathode of alkaline zinc batteries(AZBs)is still hindered and often leads to poor rate capability and short cycle life.Here,amorphous hollow nickel-cobalt-based sulfides nanocages with nanosheet arrays(AM-NCS)are designed and constructed with ZIF-67 as the selftemplate to exchange with Ni^(2+) and S^(2-) by using a two-step ion exchange method.The synthesized AM-NCS possess the high specific capacity(160 m Ah/g at 2 A/g),and the assembled battery has excellent rate performance(146 m Ah/g reversible capacity at 5 A/g).The assembled device has excellent rate performance(155 m Ah/g at 2 A/g)and long cycling stability(7000 cycles,62.5%of initial capacity).The excellent electrochemical properties of the electrode materials are mainly attributed to the unique structure,in particular,polyhedron structure with hollow structure can improve the cyclic stability,and the amorphous structure can expose more reactive sites on the surfaces of nickel,cobalt and sulfur.This work provides a new strategy for the design and fabrication of high performance cathode materials for AZBs. | Na Li Guangmeng Qu Xixi Zhang Shunshun Zhao Chenggang Wang Gang Zhao Peiyu Hou Xijin Xu | 2022 | Chinese Chemical Letters2022，33，6： | 0 |
| 8 | Hollow polyhedron structure of amorphous Ni-Co-S/Co(OH)_(2) for high performance supercapacitors显示文摘In power storage technology,ion exchange is widely used to modify the electronic structures of electrode materials to stimulate their electrochemical properties.Here,we proposed a multistep ion exchange(cation exchange and anion exchange) strategy to synthesize amorphous Ni-Co-S and β-Co(OH)_(2) hybrid nanomaterials with a hollow polyhedron structures.The synergistic effects of different components and the remarkable superiorities of hollow structure endow Ni-Co-S/Co(OH)_(2) electrode with outstanding electrochemical performance,including ultra-high specific capacity(1440.0 C/g at 1 A/g),superior capacitance retention rate(79.1% retention at 20 A/g) and long operating lifespan(81.4% retention after5000 cycles).Moreover,the corresponding hybrid supercapacitor enjoys a high energy density of 58.4 Wh/kg at the power density of 0.8 kW/kg,and a decent cyclability that the capacitances are maintained at80.8% compared with the initial capacitance.This research presents a high-performance electrode material and provides a promising route for the construction of electrode materials for supercapacitors with both structural and component advantages. | Xixi Zhang Guangmeng Qu Zonghua Wang Guotao Xiang Shuhua Hao Xiaoke Wang Xijin Xu Wenxuan Ma Gang Zhao | 2021 | Chinese Chemical Letters2021，32，8： | 0 |
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