Ya Cao

Changsha University of Science and Technology

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Feng Zhi Tan

Dalian Polytechnic University

Xueqin Liu

China University of Geosciences

Zhao Li Liu

Dalian Polytechnic University

Yinchang Li

Shenzhen University

Yuan Li

Yantai Institute of Coastal Zone Research

Songru Jia

China University of Geosciences

Zhen Li

China University of Geosciences

Yanli Zhao

Nanyang Technological University

Yang Wang

Chinese Academy of Sciences

Kai Liu

University of Electronic Science and Technology of China

Cooperative Institutions

Sichuan University

China University of Geosciences

Chinese Academy of Sciences

Dalian Polytechnic University

Dalian University of Technology

Huazhong University of Science and Technology

Hong Kong Polytechnic University

North China Electric Power University

University of Chinese Academy of Sciences

Institute of Chemistry

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Solar Cells: Ordered Single-Crystalline Anatase TiO₂ Nanorod Clusters Planted on Graphene for Fast Charge Transfer in Photoelectrochemical Solar Cells (Small 28/2017)

Small (2017)

Yang Wang Xueqin Liu Zhen Li Ya Cao Yinchang Li

Achieving efficient charge transport is a great challenge in nanostructured electrode-based photoelectrochemical cells. In article number 1700793, Zhen Li, Yanli Zhao, and co-workers, aligned single-crystalline anatase TiO2 nanorod clustergraphene architectures (rGO/ATRCs) are developed. The utilization of rGO/ATRCs in photoelectrochemical solar cells shows a 22% increase in photovoltaic efficiency over conventional nanoparticle–graphene hybrids, presenting a promising potential application in the photoelectrochemical energy field.

Nanorod

Charge carrier

Photoelectrochemical cell

Hybrid solar cell

10.1002/smll.201770155

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Citations (1)

Fabrication of PEDOT films via a facile method and their application in Pt-free dye-sensitized solar cells

Journal of Materials Chemistry A (2017)

Yinchang Li Songru Jia Zhiyan Liu Xueqin Liu Yang Wang

PEDOT films with network-like structures aggregated by plenty of nanoparticles demonstrated good photovoltaic properties.

10.1039/c7ta00990a

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Citations (20)

Macromol. Rapid Commun. 10/2013

Macromolecular Rapid Communications (2013)

Zhenqiang Dong Ya Cao Qijuan Yuan Yi‐Fu Wang Jian‐Hu Li

Front Cover: A redox-induced shape-memory polymer is prepared by cross-linking β-cyclodextrin modified chitosan and ferrocene modified poly(ethylene imine). The reversible redox-sensitive β-CD/Fc inclusion complexes and covalent cross-links serve as reversible phases and fi xing phases, respectively. This material can be processed into a desired temporary shape upon reduction and recovers to its initial shape after oxidation. The shape memory behavior also occurs when glucose is introduced with glucose oxidase entrapped in the system. Further details can be found in the article by Z.-Q. Dong, Y. Cao, Q.-J. Yuan, Y.-F. Wang, J.-H. Li, B.-J. Li,* and S. Zhang- on page 867.

Imine

Glucose oxidase

10.1002/marc.201370032

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Corrigendum to “Solution-processable three-dimensional honeycomb-like poly(3,4-ethylenedioxythiophene) nano structure networks with very fast response speed for patterned electrochromic devices” [Sol. Energy Mater. Sol. Cells 207 (2020) 110354]

Solar Energy Materials and Solar Cells (2020)

Sihang Zhang Yinghui Zhao Zoufei Du Yonghui Luo Sheng Chen

Poly(N-isopropylacrylamide)

Honeycomb

10.1016/j.solmat.2020.110750

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Photochromic properties of MoO3 and Au nanoparticles composite thin films

Chemical Research in Chinese Universities (2001)

Tingchao He YH Yin Ying Ma Pengyan Jiang Ya Cao

Absorbance

Source

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Graft Copolymerization of Starch and Acrylamide Initiated by AIBN in Aqueous Two-Phase System

Advanced materials research (2011)

Ya Cao Zao Li Liu Yuan Li Feng Zhi Tan

In aqueous two-phase system, azodiisobutyronitrile（AIBN） was adsorbed on starch by dissolve- precipitate method. Free radical was then produced by its thermolysis, thus graft copolymerization of starch and acrylamide could be initiated. The effect of factors such as initiating system, organic solvent for AIBN dissolving, time for pre-initiation, concentration of initiator, composition and concentration of disperse system on monomer conversion, grafting efficiency, and dissolution property of the reaction product were studied. The optimum conditions of the reaction were as follows: AIBN was used as initiator and methanol as solvent; pre-initiation time was 25 min; concentration of AIBN was 2.6×10 -4 mol/L; polyethylene glycol (PEG) and polyvinyl alcohol (PVA) was used as disperse system, the ratio of m (PEG): m( PVA) was 2.0:1 and their total mass fraction was 6.5%; both pre-initiation and polymerization temperatures were 60-65 °C. Monomer conversion (C) and grafting efficiency (GE) of the product obtained under these conditions were 99.4% and 99.1%, respectively.

Polyvinyl Alcohol

Radical initiator

10.4028/www.scientific.net/amr.239-242.1433

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Citations (1)

Synthesis of Superabsorbent Polymer in Inverse Emulsion via Post-Cross-Linking

Advanced materials research (2012)

Ya Cao Kai Liu Zhao Li Liu Feng Zhi Tan Yuan Li

Firstly a graft copolymer was synthesized by graft copolymerization of starch with acrylamide (AM) in inverse emulsion, and then the copolymer was deaminated and post-cross-linked by heating to produce three-dimensional superabsorbent polymer. The effect of initiate conditions, composition and concentration of emulsifier, cross-linking methods and conditions were investigated. The results show that the optimized conditions are as follows: The mixture of (NH4)2S2O8-(NH2)2CO are used as initiators, and molar ratio of initiators and acrylamide is 1.4∶105; The mixture of Span20 and Tween80 with the mass ratio of mSpan20∶mTween80=80∶20 is used as emulsifier, and the total mass fraction of the mixed emulsifier is 7% of the oil phase; Post-cross-linking method is used, and the conditions are Tc=130 °C – 140 °C, t=30 min. The water-absorbing capacity of superabsorbent polymer obtained under such conditions can reach up to 1300 – 1400 g/g in distilled water and 400 -500 g/g in saline, respectively. Its water retention rate can reach more than 90%.

Superabsorbent polymer

Distilled water

Mass fraction

Molar mass

10.4028/www.scientific.net/amr.430-432.443

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Influence of TiO2 Nanorod Arrays on the Bilayered Photoanode for Dye-Sensitized Solar Cells

Journal of Electronic Materials (2016)

Ya Cao Zhen Li Yang Wang Tao Zhang Yinchang Li

Nanorod

Tin oxide

Overlayer

Rutile

10.1007/s11664-016-4670-7

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Citations (8)

Preparation of High Oil-Absorbing Materials by Using Modified Microcrystalline Cellulose

Advanced materials research (2011)

Feng Zhi Tan Ya Cao Da Zhi Wang

Abstract. In this paper, high oil-absorbing resin is prepared, using microcrystalline cellulose as base material, and acrylate as grafting monomer. Effect of mass ratio of microcrystalline cellulose/monomer, the amount of cross-linking agent, initiator dosage, reaction temperature, and reaction time on oil-absorbing properties of the products is investigated. The optimized conditions are as followed: reaction time 6 hours, reaction temperature 70 °C, mass ratio of microcrystalline cellulose to monomer 1:1.5. The oil absorbing ratio of the product prepared under these conditions is up to 12.9 g/g for toluene, and 14.6 g/g for kerosene oil.

Microcrystalline

Kerosene

10.4028/www.scientific.net/amr.308-310.780

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R-ATRP of Acrylamide under the Action of Copper Complex System in Aqueous Two-Phase

Advanced materials research (2013)

Kai Liu Ya Cao Yuan Li Zhao Li Liu Feng Zhi Tan

Polyacrylamide (PAM) was synthesized by combining reverse atom transfer radical polymerization (R-ATRP) with aqueous two-phase polymerization. In aqueous two-phase system, polyethylene glycol 20000 (PEG20000) is used as dispersing agent, potassium persulfate (KPS) and Cu(en) 2+ are used as initiator and control agent, respectively. In this paper the effect of monomer concentration, the amount of Cu(en) 2+ , reaction temperature, the ratio of Cu(Ⅱ), and ethylenediamine (en) were investigated. The experimental result shows the optimum conditions are as follows: m(AM)∶m(PEG)=1∶1, the monomer concentration is 10%, n(AM)∶n(CuCl 2 •2H 2 O)∶n(en)∶n(KPS)=3000∶10∶20∶1, polymerization time is 6 h, and polymerization temperature is 45°C. Under these conditions, the monomer conversion is 91.5%，the linear correlation coefficient is 0.9911.

Potassium persulfate

Polyacrylamide

Aqueous two-phase system

Ethylene diamine

10.4028/www.scientific.net/amr.652-654.430

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Citations (1)