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Chinese Journal of Polymer Science 2021年第6期39卷 709-715,I0006页

作者： Zhen-Yu Wang Guang-Qiang Xu Li Zhou Cheng-Dong Lv Ru-Lin Yang Bing-Zhe Dong Qing-Gang Wang Key laboratory of biobased Materials Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

The isoselective ring-opening polymerization of racemic lactide was achieved by combining N-heterocyclic olefin(NHO)with mono(thio)ureas or bis(thio)ureas as catalytic *** polymerization process shows high stereoselectivity,controllability and reactivity,delivering multi-block isotactic polylactides with high chain-end fidelity and narrow molecular weight *** enhancement of catalytic performance was observed in the following order:bisthiourea(DTU)

关键词： mechanism. heterocyclic polymerization

Engineering Multi‑field‑coupled Synergistic Ion Transport System Based on the Heterogeneous Nanofluidic Membrane for High‑Efficient Lithium Extraction

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Nano-Micro Letters 2023年第8期15卷 436-449页

作者： Lin Fu Yuhao Hu Xiangbin Lin Qingchen Wang Linsen Yang Weiwen Xin Shengyang Zhou Yongchao Qian Xiang‑Yu Kong Lei Jiang Liping Wen CAS Key laboratory of bio‑Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China School of Future Technology University of Chinese Academy of SciencesBeijing 100049People’s Republic of China Qingdao Institute of bioenergy and bioprocess Technology Chinese Academy of SciencesQingdao 266101People’s Republic of China

The global carbon neutrality strategy brings a wave of rechargeable lithium‐ion batteries technique development and induces an ever-growing consumption and demand for lithium(Li).Among all the Li exploitation,extracting Li from spent LIBs would be a strategic and perspective approach,especially with the low energy consumption and eco-friendly membrane separation ***,current membrane separation systems mainly focus on monotonous membrane design and structure optimization,and rarely further consider the coordination of inherent structure and applied external field,resulting in limited ion ***,we propose a heterogeneous nanofluidic membrane as a platform for coupling multi-external fields(i.e.,lightinduced heat,electrical,and concentration gradient fields)to construct the multi-field-coupled synergistic ion transport system(MSITS)for Li-ion extraction from spent *** Li flux of the MSITS reaches 367.4 mmol m^(−2)h^(−1),even higher than the sum flux of those applied individual fields,reflecting synergistic enhancement for ion transport of the multi-field-coupled *** from the adaptation of membrane structure and multi-external fields,the proposed system exhibits ultrahigh selectivity with a Li^(+)/Co^(2+)factor of 216,412,outperforming previous *** based on nanofluidic membrane proves to be a promising ion transport strategy,as it could accelerate ion transmembrane transport and alleviate the ion concentration polarization *** work demonstrated a collaborative system equipped with an optimized membrane for high-efficient Li extraction,providing an expanded strategy to investigate the other membrane-based applications of their common similarities in core concepts.

关键词： Nanofluids Ion separation Lithium extraction Synergistic effect Spent lithium-ion battery

Synthesis of Ag@Cu_2O core-shell metal-semiconductor nanoparticles and conversion to Ag@Cu core-shell bimetallic nanoparticles

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Science China(Technological Sciences) 2015年第5期58卷 881-888页

作者： YANG AiLing LI ShunPin WANG YuJin WANG LeLe BAO XiChang YANG RenQiang Department of Physics Ocean University of China Qingdao Institute of bioenergy & bioprocess Technology Chinese Academy of Sciences

Ag@Cu2O core-shell metal-semiconductor nanoparticles(NPs) were prepared by using solution phase strategy. It was found that Ag@Cu2O core-shell NPs were easily converted to Ag@Cu bimetallic core-shell NPs with the help of surfactant PVP and excessive reducer ascorbic acid in air at room temperature, which is a unique phenomenon. Varying volumes of Ag colloidal solutions were added into the reaction mixtures containing fixed initial concentrations of Cu2+ and PVP, Ag@Cu2O and Ag@Cu core-shell NPs with fixed core size but varying outer shell thicknesses could be obtained. The composites, structures, morphologies and extinction properties of Ag@Cu2O and Ag@Cu core-shell NPs were systematically characterized by XRD, TEM and extinction spectra. Both of these NPs show wide tunable optical properties. The extinction peaks could be shifted from 421 nm to 700 nm. FTIR results reveal that Cu+ ions on the surface of Cu2 O nanocrystalline coordinate with N and O atoms in PVP and further are reduced to metallic Cu by excessive ascorbic acid and then form a nucleation site on the surface of Cu2 O nanocrystalline. PVP binds onto a different site to proceed with the reduction until all the Cu sources in Cu2 O NPs are completely assumed. And the shell of Cu2 O is converted to Cu shell. The synthesis approach in this paper is simple and also a promising reference for synthesizing other core-shell NPs. Ag@Cu2O NPs can be easily converted to Ag@Cu NPs in air at room temperature, which is promising to be used in electronic devices.

关键词： surfactant systematically nucleation silver synthesizing metallic colloidal reactant extinction ascorbic

Utilization of lignocellulosic plant residues for compost formation and its role in improving soil fertility

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Pedosphere 2023年第5期33卷 700-716页

作者： ALOKIKA ANU Bijender SINGH laboratory of bioprocess Technology Departmentof MicrobiologyMaharshi Dayanand UniversityRohtakHaryana 124001India Department of biotechnology Central University of HaryanaJant-PaliMahendergarhHaryana 123031India

Globally,urbanization and a steady increase in population generate a huge amount of wastes,which leads to a series of economic,social,and environmental changes,mainly in developing *** is an utmost need for efficient management strategies for the beneficial utilization of these wastes into useful *** these strategies,composting is gaining attention due to its benefits of solid waste management,such as proper sterilization,and economical and effective bioconversion of lignocellulosic wastes to valuable *** is an effective and sustainable approach for the management of various lignocellulosic *** process comprises a series of effective waste treatment steps to ensure sustainable *** composting methods have been explored for solid waste ***,the influence of various factors relevant to composting has been *** play a significant role in enhancing the degradation of lignocellulosic residues by secreting different hydrolytic *** has been utilized for increasing soil properties and improving plant growth.

关键词： abiotic factors composting method plant growth promotion remediation sustainable agriculture vermicomposting waste management

Polyoxometalates Pillared Hydrotalcite:Synthesis and Catalysis in Transesterification of Dimethyl Carbonate and Phenol

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Journal of Beijing Institute of Technology 2009年第2期18卷 229-232页

作者：罗生军迟瑛楠胡长文 School of Science Beijing Institute of Technology Qingdao Institute of bioenergy and bioprocess Technology CAS State Key laboratory of Explosion Science and Technology Beijing Institute of Technology

The salts of para-tungstic and para-molybdic were heterogenized for their effective use as solid catalysts in the transesterification reaction of dimethyl carbonate and phenol by inserting them between the layers of Mg2Al-hydrotalcite. These catalysts were characterized by FT-IR spectra and X-ray powder diffraction. Polyoxometalates （POMs） clusters were intercalated into the interlayer of layered double hydroxide （LDH） via anion exchange with organic acid precursor in Mg2Al-LDH, and the integrity of the clusters [W7O24 ]^6- and [Mo7O24 ]^6- was maintained. The intercalated para-molybdic cluster showed high catalytic activity and reusability in the transesterification under mild reaction conditions. When the reaction was carried out at 180 ℃, with a molar ratio of phenol to DMC of 1 ： 1, a reaction time 10 h, and a catalyst amount 1% （wt）, the conversion of phenol was 10.0 %, the selectivities of diphenyl carbonate and methyl phenyl carbonate were 10.7 % and 86.1%, respectively.

关键词： polyoxometalates hydrotalcite transesterification diphenyl carbonate

Green synthesis and enhanced photocatalytic activity of Ce-doped TiO2 nanoparticles supported on porous glass

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Particuology 2017年第5期15卷 103-109页

作者： Chun Shen Kexia Pang Le Du Guangsheng Luo Beijing Key laboratory of bioprocess College of Life Science and Technology Beijing University of Chemical Technology Beijing 100029 China State Key laboratory of Chemical Resource Engineering Belting Key Laboratory of Membrane Science and Technology Beijing University of Chemical Technology Beijing 100029 China State Key laboratory of Chemical Engineering Department of Chemical Engineering Tsinghua University Beijing 100084 China

A facile and green method to prepare Ce-doped TiO2 nanoparticles supported on porous glass beads is reported. An ion exchange process and subsequent calcination yielded Ce-doped TiO2 nanoparticles with a mean size of 4.8±0.3 nm. The nanoparticles were dispersed on the surface of porous glass beads. The addition of Ce enhanced the visible light absorption of the TiO2 nanoparticles in the 400-500 nm spectral window. The band gap of the as-prepared catalyst was 2.80 eV. The Ce-doped TiO2 nanoparticles immobilized on porous glass beads exhibited excellent photocatalytic activity for the visible-light-degradation of methyl orange （MO） and rhodamine B （RhB）; with rate constants of 0.095 and 0.230 min^-1 ; respectively. The effects of Ce dosage; reaction duration; and initial solution pH on the conversion of MO and RhB dyes were investigated. The green synthesis and favorable photocatalytic activity makes the Ce-doped TiO2 nanoparticles immobilized on porous glass an attractive alternative for the efficient degradation of organic pollutants.

关键词： Ce-doped TiO2 catalystSupported nanoparticlesPorous glass beadsPhotocatalytic degradation

Mutagenesis of T richoderma V iride by Ultraviolet and Plasma

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Plasma Science and Technology 2012年第4期14卷 353-356页

作者：姚日生李曼曼邓胜松胡华佳王淮李凤和 Chemical Engineering School Hefei University of Technology Engineering Research Center of bioprocess of Ministry of Education

Considering the importance of a microbial strain capable of increased cellulase production, a mutant strain UP4 of Trichoderma viride was developed by ultraviolet （UV） and plasma mutation. The mutant produced a 21.0 IU/mL FPase which was 98.1% higher than that of the parent strain Trichoderma viride ZY-1. In addition, the effect of ultraviolet and plasma mutagenesis was not merely simple superimposition of single ultraviolet mutation and single plasma mutation. Meanwhile, there appeared a capsule around some of the spores after the ultraviolet and plasma treatment, namely, the spore surface of the strain became fuzzy after ultraviolet or ultraviolet and plasma mutagenesis.

关键词： mutagenesis Trichoderma viride plasma ultraviolet cellulase solid-statefermentation

Yolk-shell FeCu/NC electrocatalyst boosting high-performance zinc-air battery

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Nano Research 2024年第9期17卷 7918-7925页

作者： Chen Liang Tianyu Zhang Shilun Sun Aijuan Han Zenghui Qiu Haijun Xu Junfeng Liu State Key laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China College of Mathematics&Physics Beijing University of Chemical TechnologyBeijing 100029China Beijing bioprocess Key laboratory Beijing University of Chemical TechnologyBeijing 100029China

Iron-nitrogen-carbon single-atom catalysts(Fe-N-C SACs)are widely acknowledged for their effective oxygen reduction activity,however,their activity requires further ***,additional structural optimization is necessary to enhance mass transport and achieve higher power density in practical ***,using ZIF-8 as a template,we synthesized yolk-shell catalysts featuring complex sites of Fe single atoms and Cu nanoclusters(y-FeCu/NC)via partial etching and liquid-phase *** synthesized y-FeCu/NC catalyst exhibits high specific surface area and mesoporous *** with the advantages of highly active sites and yolk-shell structure,the y-FeCu/NC catalyst demonstrated outstanding catalytic performance in the oxygen reduction reaction,achieving a half-wave potential(E_(1/2))of 0.97 V in 0.1 M *** a practical energy device,Zn-air battery(ZAB)assembled with y-FeCu/NC catalyst achieved a remarkable power density of 356.3 mW·cm^(-2),representing an improvement of approximately 28.5%compared to its solid FeCu/NC ***,it showcased impressive stability,surpassing all control samples.

关键词： atomic Fe-N4 sites Cu nanoclusters yolk-shell structure oxygen reduction reaction zinc-air battery

Catalytic oxidation of vinyl chloride over Co-Ce composite oxides derived from ZIF-67 template:Effect of cerium incorporation

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Journal of Rare Earths 2023年第6期41卷 870-880,I0003页

作者： Hongliang Zhang Shuoming Wang Mingju Wang Guanghao Li Lihang Yu Xuehua Liu Zhong Wang Chuanhui Zhang Institute of Materials for Energy and Environment College of Materials Science and EngineeringQingdao UniversityQingdao 266071China Key laboratory of biofuels Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China

Transition metal oxides are regarded as an economical and efficient catalytic alternate for catalytic oxidation of volatile organic compounds(VOCs)*** morphological decoration and the incorporation of extrinsic metals were demonstrated to be effective strategies for achieving noticeable catalytic *** this work,a novel Co-Ce composite oxides catalyst was obtained by the pyrolysis of ZIF-67 template with the impregnation of certain cerium cations(denoted as ZIF-CoCe).Compared with the reference Co-Ce composite oxides by the sol-gel(denoted as SG-CoCe)and physical mixing(denoted as MIX-CoCe)methods,ZIF-CoCe delivers significantly higher catalytic activity for vinyl chloride oxidation,which are demonstrated to be closely related with its superior redox capacity,more abundance of surface active Co^(3+)sites and adsorbed active oxygen species from oxygen *** addition,the unique cage-like morphological feature of the Co-based catalysts derived from ZIF-67 template plays a crucial function in kinetically facilitating the mass transfer of catalytic reaction and promoting the catalytic VC oxidation *** regard to in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTs)analysis,enol and carboxylic acid species are identified to be the key organic intermediates during catalytic vinyl chloride oxidation.

关键词： Rare earth Catalytic oxidation Cerium incorporation Redox behavior Surface oxygen species

Frontiers of Catalysis Chemistry and Technology

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Frontiers of Chemical Science and Engineering 2018年第1期12卷 1-2页

作者： Zhongmin Liu Jinzhe Li Dalian Institute of Chemical Physics (DICP) & Qingdao Institute of bioenergy and bioprocess Technology CAS China National Engineering laboratory for Methanol to Olfins Dalian Institute of Chemical Physics CAS China

Catalysis science and technology has been greatly prompted in recent years, own to, in particular, the rapid development and progress in energy and environmental areas. Energy is one of the most important issues with worldwide concerns from international community to domestic social and economic development. In many cases, energy or energy containing materials needs to be converted to more valuable forms or states. Catalysis plays a central role during almost all of the transformation processes, such as oil refining, coal processing and utilization, fuel cell, energy storage, hydrogen generation and storage, solar energy utilization and biomass conversion. Catalysis also plays a very important role in environmental protection such as greenhouse gas emission, water purification, C02 capturing and transformation, and so on. Nowadays, there arises a new round of technological breakthrough due to the demand in these fields. Thus, Frontiers of Chemical Science and Engineering （FCSE）, one of the transactions of Chinese Academy of Engineering, organized this Special Issue aiming to illustrate some of the exciting progresses and achievements in the relevant research fields.

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