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	1. Sturdy Mo/MoO2 with Densely-Distributed Heterointerface as Highly Active and Stable HER Electrodes
	HUANG Xingfeng,ZHANG Ling
	Chemistry 11 April 2024
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	Abstract:The practical application of alkaline water electrolysis (AWE) has been hindered by the unsatisifactory activity and stability of HER electrodes. Here, Mo/MoO2 with densely-distributed heterointerface was constructed on nickel mesh via plasma spraying of metallic Mo powders as highly active and sturdy catalyst layer for HER electrodes. As a result, the electrode demonstrates a low overpotential of 48.7 mV@10 mA cm-2 and a prolonged stability of 500 h even under industrial conditions.
	TO cite this article:HUANG Xingfeng,ZHANG Ling. Sturdy Mo/MoO2 with Densely-Distributed Heterointerface as Highly Active and Stable HER Electrodes[OL].[11 April 2024] http://en.paper.edu.cn/en_releasepaper/content/4763290


	2. Halogen-controlled synthesis of nickel hydroxide halide for electrode active materials
	LI Weining,ZOU Xuefeng,XIANG Bin
	Chemistry 16 April 2021
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	Abstract:The performance of the material is closely related to its morphology and composition. In this research, we used halogen anions to control the solvothermal process to synthesize a series of halogen hydroxy nickel and studied their electrochemical performance. We find that halogen anions have a huge impact on morphology, composition and performance of the product. Specially, Ni(OH)Cl is a micro-flower with a large specific surface area composed of ultra-thin nano-sheets. In the three-electrode system, the Ni(OH)Cl electrode exhibits higher specific capacity (142 mAh g-1 at the current densities of 1 A g-1) than other electrodes due to its special morphology and structure. When assembled an asymmetric supercapacitor (Ni(OH)Cl//rGO ASC) by employing nickel hydroxychloride, rGO and 2M KOH aqueous solution as the positive electrode, the negative electrode, and the electrolyte, respectively. The device demonstrated a high energy density of 66 Wh kg?1 at a power density of 800W kg?1 and maintained at an energy density of 35.4 Wh kg?1 even with a high power density of 8000 W kg?1. This research will provide a new idea for controlling the morphology and composition of materials.
	TO cite this article:LI Weining,ZOU Xuefeng,XIANG Bin. Halogen-controlled synthesis of nickel hydroxide halide for electrode active materials[OL].[16 April 2021] http://en.paper.edu.cn/en_releasepaper/content/4754602

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	3. Interface-driven synthesis of CuO@CN LDH on copper foam for high-performance supercapacitors
	SONG Tingting,ZOU Xuefeng,XIANG Bin
	Chemistry 11 April 2021
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	Abstract:Under the condition of not using a binder, the active material can be directly grown on the conductive base material as the electrode of the capacitor. The internal space structure of this electrode material makes the ion transport area easy to diffuse and brings more active sites, which leads to its excellent electrical conductivity and the formation of a prominent conductive network. However, the adhesion between the active material and the substrate is weak and even easy to fall off, resulting in poor cycling performance of the capacitor To solve this problem, we provide a novel strategy. The Co-Ni double hydroxide core-shell structure was gradually formed by the pre-oxidation of copper foam, an interface-modulated copper foam framework surface, re-oxidation and electrodeposition. Furthermore，it was founded that the adhesive force of CuO grown free-standing on copper foam is enhanced in this way. The specific capacity of the prepared core-shell nanohybrid (POCF@CuO@CN LDH) by the two-step oxidation method was 4027.28 F g-1 at 1 A g-1, and that of the core-shell nanohybrid (OCF@CuO@CN LDH) prepared by the direct oxidation method was 2377.50 F g-1 at 1 A g-1. The former is 1.7 times than the latter. The POCF@CuO@CN LDH electrode has a capacitance retention rate of 80.84 % after 10000 cycles at 20 A g-1 with excellent multiplicity performance and long cycle stability. The as-assembled POCF@CuO@CN LDH//RGO asymmetric supercapacitor (ASC) provides a excellent energy density of 41.73 Wh kg-1 at a power density of 800.13 W kg-1 and a capacitance retention rate of 73.17 % after 10000 cycles at 5 A g-1. In addition, a commercial 1W light-emitting diode indicator with blue light can be energized for 4 minutes when two ultra-capacitor devices connected in series are linked in series. As such, it can be suggested that the two-step oxidation method, which provides a strategy for the integration of nanocomposite materials and substrates with strong interfacial adhesion, may have great potential in high-performance electrochemical devices.
	TO cite this article:SONG Tingting,ZOU Xuefeng,XIANG Bin. Interface-driven synthesis of CuO@CN LDH on copper foam for high-performance supercapacitors[OL].[11 April 2021] http://en.paper.edu.cn/en_releasepaper/content/4754601


	4. Modulating Prussian Blue Analogues-derived Binary Metal Oxides for Efficient Oxygen Evolution Catalysts
	XIAO Shenghuan,YANG Yang,ZHANG Yunhuai
	Chemistry 18 May 2020
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	Abstract:Oxygen evolution reaction (OER) is closely related to numerous energy-related applications so that developing high-activity, durable and cost-effective electrocatalysts for OER has been an inevitable trend. Prussian blue analogues (PBAs), a kind of metal organic frameworks (MOFs), which have been paid more attention in the filed of electrocatalysis because of unique framework structure and adjustable components. Herein, we synthesis a series of Ni-Co PBAs via modulating metal ratio by a coprecipitation method and then anneal the as-prepared Ni-Co PBAs, which used as OER catalysts. We found that as the increasing of nickel content, the size of catalysts decreases, which resulting in an increasing of specific surface area and electrochemical active sites, thereby improving the performance of OER. Furthermore, benefiting from the minimum size with largest specific area, largest electrochemical active surface area with different and abundant active sites, the Ni-Co-31 oxides shows a small overpotential of 340 mV at a current density of 10 mAocm-2, a small Tafel slope of 89 mVodec-1, which is superior to other catalysts prepared. This work proves the great significance of PBAs derivatives with different metal ratios for OER performance, which is meaningful for the preparation and mass production of efficient electrocatalysts.
	TO cite this article:XIAO Shenghuan,YANG Yang,ZHANG Yunhuai. Modulating Prussian Blue Analogues-derived Binary Metal Oxides for Efficient Oxygen Evolution Catalysts[OL].[18 May 2020] http://en.paper.edu.cn/en_releasepaper/content/4752128


	5. Influence of Preparation Condition on the Performance of Ni-based Catalysts for the Glycerol Steam Reforming
	XIE Shuang,Zhang Xianghua,Tu Qiang,Shi Biao,Cui Yuehua,Chen Changguo
	Chemistry 11 May 2018
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	Abstract:The effect of preparation condition on the performance of Ni-based catalysts was investigated for the glycerol steam reforming. The La0.7Ce0.3NiO3 mixed oxides were synthesized using different solution concentrations and calcination temperatures by co-precipitation method. BET, ICP, XRD, TPR, FE-SEM, CO2-TPD, TGA and Raman spectroscopy were used to characterize the catalysts. Including La2NiO4 phase at lowest solution concentration, catalyst precursor included LaNiO3 phase instead of La2NiO4 at other solution concentrations. At low calcination temperature of 700 C, it was found that smaller particle size of CeO2 incorporated more lanthanum, higher surface basicity and La2O2CO3 phase could effectively inhibit and eliminate coking leading to the better performance of catalyst.
	TO cite this article:XIE Shuang,Zhang Xianghua,Tu Qiang, et al. Influence of Preparation Condition on the Performance of Ni-based Catalysts for the Glycerol Steam Reforming[OL].[11 May 2018] http://en.paper.edu.cn/en_releasepaper/content/4745028


	6. Density Functional Theory Characterization of Metallofullerenes La2C92: La2C2@C90 or La2@C92?
	GUAN Wenjuan,LI Qiaozhi,ZHAO Xiang
	Chemistry 21 June 2017
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	Abstract:By using density functional theory computations in conjunction with statistic mechanics analyses, the cage-selectivity of endohedral metallofullerenes La2C92 is investigated. Results indicate that isomers La2C2@C1(84069)-C90, La2C2@C2(99913)-C90 in carbide cluster metallofullerenes (CCMFs) La2C2@C90 and La2@D3-(126408)-C92, La2@C1-(126367)-C92 in dimetallofullerenes (di-EMFs) La2@C92 are the most favorable La2C92 candidates, in which the isomer La2C2@C2(99913)-C90 has been successfully isolated and characterized experimentally. In addition, those two CCMF isomers exhibit superior thermodynamic abundances than above-mentioned di-EMFs, though the latter ones are more favorable in potential energies. Furthermore, the electronic, orbital, and spectral analyses of those four isomers are conducted to help the further experimental characterization of La2C92 series.
	TO cite this article:GUAN Wenjuan,LI Qiaozhi,ZHAO Xiang. Density Functional Theory Characterization of Metallofullerenes La2C92: La2C2@C90 or La2@C92?[OL].[21 June 2017] http://en.paper.edu.cn/en_releasepaper/content/4737905


	7. From Nearly Free Electron States to Two Dimensional Electron Gas in Free Space
	SM Ghulam Abbas,ZHAO Songtao,LI Zhenyu
	Chemistry 11 May 2017
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	Abstract:Nearly free electron like states (NFE) are counterparts of the image potential states floating on the surfaces of low dimensional materials. The exotic nuclear scattering free transport associated with them is realized extensively by both computationally and experimentally. These states exist as unoccupied part of the band some eV above the Fermi level. But, it is possible to draw NFE states to Fermi level either through chemical or electric imposed modifications. Unfortunately, in most cases doping usually destroys nuclear scattering free transport of NFE states, or employs complex gate systems. But this concept is now shifting to electride based design which remarkably resorts with two dimensional electron gas in free space (2DEG-FS). This short review, gives a pardigm shift of NFE states to 2DEG-FS with aid of theoretical designs and computational characterization.
	TO cite this article:SM Ghulam Abbas,ZHAO Songtao,LI Zhenyu. From Nearly Free Electron States to Two Dimensional Electron Gas in Free Space[OL].[11 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4733131


	8. A Density-Functional Tight-Binding Model of Copper and Carbon
	Di Yin,Zhenyu Li
	Chemistry 06 May 2017
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	Abstract:A new parametrization of copper and carbon within the self-consistent-charge density-functional tight-binding framework is presented to study its condensed-phase properties. The electronic part of the parameters is mainly generated via optimizing band structures. The repulsive part is calculated from the force or energy data of the corresponding adsorption configurations. Benchmark calculations with the obtained parameter set show good performance of structural energetic properties of bulk and surface systems. Parameters reported here can be used for modeling of complicated copper and carbon nanostructures.
	TO cite this article:Di Yin,Zhenyu Li. A Density-Functional Tight-Binding Model of Copper and Carbon[OL].[ 6 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4733173


	9. The effects of activation conditions on the supercapacitive performance of porous activated biochar
	LU Qun,ZHANG Youwei,WANG Xianyou,GAO Jiao,LIU Jia,CHEN Manfang,LIU Min,WANG Xingyan
	Chemistry 05 May 2017
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	Abstract:The porous carbons derived from naturally abundant bamboo shoot shell for the application of supercapacitor are further activated by chemical activation with ZnCl2, H3PO4 and K2CO3. The influences of activation condition on the pore structure and physicochemical properties of the as-prepared porous carbon samples are investigated by scanning electron microscopy (SEM), transmission electron microscope (TEM), nitrogen adsorption-desorption isotherm, cyclic voltammogram (CV), galvanostatic charge-discharge (GCD) test, electrochemical impedance spectroscopy (EIS) and cycle life measurement. The results show that the porous activated carbon prepared at 1:1 weight ratio of K2CO3 to bamboo shoot shell exhibits a specific surface area of 1800 m2 g-1 with the average pore size of 3.35 nm (AC-K2CO3-900). In addition, the AC-K2CO3-900 shows a high specific capacitance of 287 F g-1 at the current density of 1 A g-1. Moreover, the AC-K2CO3-900 supercapacitor holds high capacitance retention of 95.80% even after 10000 cycles, indicating its potential prospect for the application of high-performance supercapacitors.
	TO cite this article:LU Qun,ZHANG Youwei,WANG Xianyou, et al. The effects of activation conditions on the supercapacitive performance of porous activated biochar[OL].[ 5 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4732705


	10. Facile preparation and performance of novel activated carbon based on bamboo shoot shell for supercapacitors
	LU Qun,ZHANG Youwei,WANG Xianyou,GAO Jiao,LIU Jia,CHEN Manfang,WANG Xingyan
	Chemistry 27 April 2017
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	Abstract:The porous carbon material prepared from naturally abundant bamboo shoot shell for the application of supercapacitor is put forward. It not only makes waste biomass to be profitable, but also provides a sustainable development way for the preparation of the new porous carbon material. The physicochemical and electrochemical properties of the as-prepared porous carbon samples are studied in detail. The results show that the porous carbon sample prepared at 5:1 weight ratio of KOH to bamboo shoot shell derived carbon (BSSDC) exhibits a specific surface area of ~ 3408 m2 g-1 (BSSDAC-5). In addition, the BSSDAC-5 shows a high specific capacitance of 308 F g-1 at 1 A g-1 and high capacitance retention of 97.40% even after 10000 cycles, indicating its potential application for high-performance supercapacitors.
	TO cite this article:LU Qun,ZHANG Youwei,WANG Xianyou, et al. Facile preparation and performance of novel activated carbon based on bamboo shoot shell for supercapacitors[OL].[27 April 2017] http://en.paper.edu.cn/en_releasepaper/content/4730197

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