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Journal of Materials Science & Technology 2022年第20期115卷 199-207页

作者： Weijie Zhang Xizhong Zhou jinzhao huang Shouwei Zhang Xijin Xu School of Physics and Technology University of JinanJinan 250022China

Improving the separation efficiency of photogenerated carriers and broadening the light absorption range of the photocatalyst are two important factors for improving the performance of the *** this paper,a new and efficient Z-scheme Cd S/iron phthalocyanine(Cd S/Fe Pc)core-shell nanostructure composite material is prepared by a simple solid-phase reaction *** are two key points in the preparation of composite materials:one is that hydrogen bonding energy is closely connected with Fe Pc,another is that Fe Pc can be uniformly assembled on Cd S *** photocatalytic hydrogen evolution(PHE)of the Cd S/Fe Pc nanocomposite(73.01μmol/h)is 2.6 times higher than that of pure Cd S(26.67μmol/h).In addition,after 4 photocatalytic cycles,the PHE of the Cd S/Fe Pc composite is still 92.3%of the first *** are three reasons for this situation:(1)The Z-scheme heterojunction is formed to improve the separation efficiency of photogenerated carriers;(2)Fe Pc expands the visible light absorption range of Cd S;(3)The large core-shell contact area is favorable for the separation of photo-induced carriers at the *** research is conducive to the further development of new photocatalytic materials with high efficiency,low cost and simple preparation.

关键词： CdS/FePc Core-shell nanostructure Photocatalytic hydrogen evolution Z-scheme heterojunction

Rational construction of phosphate layer to optimize Cu-regulated Fe_(3)O_(4) as anode material with promoted energy storage performance for rechargeable Ni-Fe batteries

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Journal of Materials Science & Technology 2022年第13期108卷 133-141页

作者： Shuhua Hao Yupeng Xing Peiyu Hou Gang Zhao jinzhao huang Shipeng Qiu Xijin Xu Laboratory of Functional Micro and Nano Materials and Devices School of Physics and TechnologyUniversity of JinanJinan 250024China

Flexible aqueous energy storage devices with high security and flexibility are crucial for the progress of wearable energy ***,aqueous rechargeable Ni-Fe batteries owning a large theoretical capacity,low cost and outstanding safety characteristics have emerged as a promising candidate for flexible aqueous energy storage ***,Cu-doped Fe_(3)O_(4)(CFO)with 3D coral structure was prepared by doping Cu^(2+) based on Fe_(3)O_(4)nanosheets(FO).Furthermore,the Fe-based anode material(CFPO)grown on carbon fibers was obtained by reconstructing the surface of CFO to form a low-crystallization shell which can enhance the ion ***,the newly developed CFPO electrode as an innovative anode material further exhibited a high capacity of 117.5 mAh g^(-1)(or 423 F g^(-1))at 1 A g^(-1).Then,the assembled aqueous Ni-Fe batteries with a high cell-voltage output of 1.6 V deliver a high capacity of 49.02 mAh g^(-1) at 1 A g^(-1) and retention ratio of 96.8%for capacitance after 10000 continuous ***’s more,the aqueous quasi-solid-state batteries present a remarkable maximal energy density of 45.6 Wh kg^(-1) and a power density of 12 kW kg^(-1).This work provides an innovative and feasible way and optimization idea for the design of high-performance Fe-based anodes,and may promote the development of a new generation of flexible aqueous Ni-Fe batteries.

关键词： Ni-Fe batteries High voltage window regulation High energy and power density Anode materials Amorphous phosphate layer

Recent progress in functionalized layered double hydroxides and their application in efficient electrocatalytic water oxidation

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Journal of Energy Chemistry 2019年第5期28卷 93-104页

作者： Xiaolong Deng jinzhao huang Hao Wan Fashen Chen Yifan Lin Xijin Xu Renzhi Ma Takayoshi Sasaki School of Physics and Technology University of JinanJinan 250022ShandongChina National Institute for Materials Science (NIMS) Beijing Tsinghua University University of Tokyoin the National Institutefor Research in Inorganic Materials International Center for Materials Nanoarchitectonics (WPI-MANA) National Institute for Materials Science (NIMS)Namiki 1-1Tsukubalbaraki 305-0044Japan Northwestern Polytechnical University Shanghai University Konkuk University Linyi University Beijing Jiaotong University Instituteof Solid State Physics Chinese Academy of Sciences Nanyang TechnologicalUniversity in Singapore

Layered double hydroxides (LDHs), a class of anionic clays consisting of brucite-like host layers and interlayer anions, have been widely investigated in the last decade due to their promising applications in many areas such as catalysis, ion separation and adsorption. Owing to the highly tunable compositi on and uniform distribution of metal cations in the brucite-like layers, as well as the facile exchangeability of intercalated anions, LDHs can be modified and functionalized to form various nanostructures/composites through versatile processes such as anion intercalation and exfoliation, decoration of nanoparticles, selfassembly with other two-dimensional (2D) materials, and controlled growth on conductive supports (e.g., nanowire arrays, nano tubes, 3D foams). In this article, we briefly review the recent advances on both the LDH nano structures and functionalized composites toward the applications in energy conversion, especially for water oxidation.

关键词： Layered double hydroxide Energy conversion Water splitting Functionalization

Transient and stable electroluminescence properties of alternating-current biased organic light-emitting diodes

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Frontiers of Optoelectronics 2012年第3期5卷 279-283页

作者： jinzhao huang Minghui SHAO Xijin XU School of Physics and Technology University of Jinan Jinan 250022 China

In this work, transient electroluminescence （EL）（brightness-voltage waveform curve） was utilized to investigate the working mechanism of alternating-current biased organic light-emitting diodes （AC-OLEDs）. In lower frequency domain, injection potential barrier was the dominant effect to determine the luminescence intensity; with increased frequency, the influence of capacitance effect becomes dominant, which can be confirmed according to the investigations on stable EL of the AC-OLEDs. The results indicate that transient and stable EL can agree with each other perfectly. Besides, the stable EL reveals that the thinner device can take more effective capacitance effect.

关键词： organic light-emitting diodes (OLEDs) alter-nating-current (AC) transient electroluminescence (EL)

Enhanced photocatalytic activity of quantum-dot-sensitized one-dimensionally-ordered ZnO nanorod photocatalyst

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Journal of Environmental Sciences 2013年第12期25卷 2487-2491页

作者： jinzhao huang Song Liu Lei Kuang Yongdan Zhao Tao Jiang Shiyou Liu Xijin Xu School of Physics and Technology University of Jinan

An efficient photocatalyst was fabricated by assembling quantum dots （QDs） onto one-dimensionally-ordered ZnO nanorods, and the photocatalytic properties for Methyl Orange degradation were investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, UV-Vis-NIR absorption spectroscopy and photoluminescence. The results indicate that the catalyst with assembled QDs is more favorable for the degradation than the pristine ZnO nanorods. The QDs with core-shell structure lower the photocatalytic ability due to the higher carder transport barrier of the ZnS shell layer. Besides its degradation efficiency, the photocatalyst has several advantages given that the one-dimensionally-ordered ZnO nanorods have been grown directly on indium tin oxide substrates. The article provides a new method to design an effective and easily recyclable photocatalyst.

关键词： quantum dots one-dimensionally-ordered ZnO nanorods photocatalyst

An integrated approach to configure rGO/VS_(4)/S composites with improved catalysis of polysulfides for advanced lithium-sulfur batteries

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Chinese Chemical Letters 2022年第8期33卷 3909-3915页

作者： Feng Li Lu Wang Guangmeng Qu Peiyu Hou Linglong Kong jinzhao huang Xijin Xu School of Physics and Technology University of JinanJi'nan 250022China College of Chemistry and Material Science Shandong Agricultural UniversityTaian 271018China State Forestry and Grassland Administration Key Laboratory of Silviculture in Downstream Areas of the Yellow River School of ForestryShandong Agricultural UniversityTaian 271018China

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 ***,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 *** 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 ***,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 ***,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.

关键词： Lithium-sulfur batteries rGO/VS_(4)/S composites In-situ synthesis Adsorbing Catalysis

Metal-organic framework derived NiCoP hollow polyhedrons electrocatalyst for pH-universal hydrogen evolution reaction

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Chinese Chemical Letters 2021年第1期32卷 119-124页

作者： Yunrui Wei Xixi Zhang Zonghua Wang Jiangmei Yin jinzhao huang Gang Zhao Xijin Xu School of Physics and Technology University of JinanJi’nan 250022China

Hollow nanostructures have attracted increasing research interest in hydrogen evolution reaction owing to their unique structural ***,Ni-Co mixed metal phosphide hollow and porous polyhedrons was successfully composited(expressed as NiCoP).Benefiting from the synergistic effects of ZIF-67 by doping Ni elements and the well-defined hollow and porous structure,the as-synthesized NiCoP hollow and porous polyhedrons exhibit better electrochemical properties and mechanical stability for hydrogen evolution reaction over a pH-universal range,with a small Tafel slopes of 72,101,176 mV/dec,and a low overpotential of 82,102,261 mV at a current density of 10 mA/cm^(2) in 0.5 mol/L H_(2)SO_(4),1 mol/L KOH and1 mol/L phosphate buffer solution(PBS).This general strategy can also be applied to fabricate other hollow cobalt-based phosphides and MOFs-derived materials for HER.

关键词： Hollow structure ZIF-67 NiCoP Hydrogen evolution reaction pH-Universal range

Recent progress of traditional Chinese medical science based on theory of biophoton

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Frontiers of Optoelectronics 2014年第1期7卷 28-36页

作者： Xiuxiu WANG jinzhao huang Jinxiang HAN Meina YANG Jingxiang PANG Xiaolei ZHAO School of Physics and Technology University of Jinan Jinan 250022 China Shandong Medicinal Biotechnology Center Key Laboratory for Biotech-Drugs of the Ministry of Health Jinan 250062 China

With the development of biophotonics, bio- photon detection technology has been appropriately used. In this paper, the main features and fundamental concep- tions of biophotonics were introduced basically. Then the coherence theory of biophoton emission was reviewed. Furthermore, based on this coherence concept, the quantum theory of traditional Chinese medicine （TCM） and properties of Chinese medicinal herbs were presented. To show the nature of biophoton emission in living systems and clarify its basic detection mechanism, high sensitive detection system which allows non-invasive and non-destructive （or less） recording was finally presented.

关键词： biophoton traditional Chinese medicine(TCM) syndrome meridian Chinese herbs detectiontechnology

Mo-doped one-dimensional needle-like Ni_(3)S_(2) as bifunctional electrocatalyst for efficient alkaline hydrogen evolution and overall-water-splitting

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ChemPhysMater 2024年第1期3卷 74-82页

作者： Junjie huang Yupeng Xing jinzhao huang Fei Li Gang Zhao Xingmin Yu Binxun Li Xinran Zhang School of Physics and Technology University of JinanJinan 250022China

Hydrogen energy plays an important role in clean energy system and is considered the core energy source for future technological development owing to its lightweight nature,high calorific value,and clean combustion *** electrocatalytic conversion of water into hydrogen is considered a highly promising *** electrocatalyst is indispensable in the electrocatalytic process,and finding an efficient electrocatalyst is ***,the current commercial electrocatalysts(such as Pt/C and Ru)are expensive;therefore,there is a need to find an inexpensive and efficient electrocatalyst with high stability,corrosion resistance,and high electrocatalytic *** this study,we developed a cost-effective bifunctional electrocatalyst by incorporating molybdenum into nickel sulfide(Ni_(3)S_(2))and subsequently tailoring its structure to achieve a one-dimensional(1D)needle-like *** hydrogen production efficiency of nickel sulfide was improved by changing the ratio of Mo *** analyzing the electrochemical performance of different Mo-doped catalysts,we found that the Ni_(3)S_(2)-Mo-0.1 electrocatalyst exhibited the best electrocatalytic effect in 1 M KOH;at a current density of 10 mA cm^(-2),it exhibited overpotentials of 120 and 279 mV for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),respectively;at a higher current density of 100 mA cm^(-2),the HER and OER overpotentials were 396 and 495 mV,***,this electrocatalyst can be used in a two-electrode water-splitting ***,we thoroughly investigated the mechanism of the overall water splitting of this electrocatalyst,providing valuable insights for future hydrogen production via overall-water-splitting.

关键词： Hydrogen evolution reaction Molybdenum doped Nickel sulfide Overall water splitting Needle-like multistage structure

Synergistic enhancement of cathode/anode interfaces with high water-retentive organohydrogel enabling highly stable zinc ion batteries

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Journal of Energy Chemistry 2024年第11期98卷 670-679页

作者： Xixi Zhang Qingxiu Yu Guangmeng Qu Xiaoke Wang Chuanlin Li Chenggang Wang Na Li jinzhao huang Cuiping Han Hongfei Li Xijin Xu School of Physics and Technology University of JinanJinan 250022ShandongChina School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100ShandongChina Faculty of Materials Science and Engineering and Low Dimensional Energy Materials Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyShenzhen 518055GuangdongChina

Current aqueous battery electrolytes,including conve ntional hydrogel electrolytes,exhibit unsatisfactory water retention *** sustained water loss will lead to subsequent polarization and increased internal resistance,ultimately resulting in battery ***,a double network(DN) orga no hydrogel electrolyte based on dimethyl sulfoxide(DMSO)/H_(2)O binary solvent was *** directionally reconstructing hydrogen bonds and reducing active H_(2)O molecules,the water retention ability and cathode/anode interfaces were synergistic *** a result,the synthesized DN organohydrogel demonstrates exceptional water retention capabilities,retaining approximately 75% of its original weight even after the exposure to air for 20 *** Zn MnO_(2) battery delivers an outstanding specific capacity of275 mA h g^(-1) at 1 C,impressive rate performance with 85 mA h g^(-1) at 30 C,and excellent cyclic stability(95% retention after 6000 cycles at 5 C).Zn‖Zn symmetric battery can cycle more than 5000 h at 1 mA cm^(-2) and 1 mA h cm^(-2) without short *** study will encourage the further development of functional organohydrogel electrolytes for advanced energy storage devices.

关键词： Enhanced water-retentive Organohydrogel electrolyte Stable Zn||MnO+2 batteries Enhancement of cathode/anode interfaces