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Progress of vanadium phosphorous oxide catalyst for n-butane selective oxidation

Chinese Journal of Chemical engineering 2022年第3期35卷 297-315页

作者： Muhammad Faizan Yingwei Li Ruirui Zhang Xingsheng Wang Piao Song Ruixia Liu Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Multiphase Complex SystemInstitute of Process Engineering Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

The utilization of lighter alkanes into useful chemical products is essential for modern chemistry and reducing the CO_(2)***,n-butane has gained special attention across the globe due to the abundant production of maleic anhydride(MA).Vanadium phosphorous oxide(VPO)is the most effective catalyst for selective oxidation of n-butane to MA so ***,the VPO complex exists in more or less fifteen different structures,each one having distinct phase composition and exclusive surface morphology and physiochemical properties such as valence state,lattice oxygen,acidity etc.,which relies on precursor preparation method and the activation conditions of *** catalytic performance of VPO catalyst is improved by adding different promoters or co-catalyst such as various metals dopants,or either introducing template or structural-directing ***,new preparation strategies such as electrospinning,ball milling,hydrothermal,barothermal,ultrasound,microwave irradiation,calcination,sol-gel method and solvothermal synthesis are also employed for introducing improvement in catalytic *** in above-mentioned different aspects will be ascribed in current review in addition to summarizing overall catalysis activity and final *** analyze the performance of the catalytic precursor,the reaction mechanism and reaction kinetics both are discussed in this review to help clarify the key issues such as strong exothermic reaction,phosphorus supplement,water supplement,deactivation,and air/n-butane pretreatment *** to the various industrial applications of VPO.

关键词： N-butane selective oxidation Oxidation of light alkanes Vanadium phosphorus oxide(VPO) Maleic anhydride

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Study on ionic liquids based novel method for separation and purification of silkworm pupa protein

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Chinese Chemical Letters 2023年第1期34卷 382-387页

作者： Wen Zhang Shaoqi Yang Baozeng Ren Xingmei Lu Cai Jia Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Zhengzhou Institute of Emerging Industrial Technology Zhengzhou 450000China Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs College of Mechanical&Electrical EngineeringHenan Agricultural UniversityZhengzhou 450002China School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China

Silkworm pupa protein(SPP)that obtained by traditional method usually had a high fat content,which would impose restrictions on the further use of ***,various functionalized ionic liquids(ILs)were used to extract SPP from silkworm pupae,the structure-performance relationship of ILs with their SPP separation performance were explored at the same *** research showed that the maximum extraction yield of SPP was up to 62.6%with less than 0.5%low fat content by using 1-ethyl-3-methylimidazolium chloride([Emim]Cl),when the dissolution experiment was conducted at 90°C for 24 h with ethanol bath as the regeneration *** with the structure of raw material,the regenerated SPP maintained the native protein ***,all regenerated SPP showed a decreased crystallinity,which also exhibited decreased fraction of theα-helix comparing to thatβ-sheet united with coil random structures.

关键词： Silkworm pupa protein Ionic liquids Protein backbone Silkworm pupa Separation

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Structure deformation of Ni-Fe-Se enables efficient oxygen evolution via RE atoms doping

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Rare Metals 2025年第1期44卷 336-348页

作者： Hong-Rui Zhao Cheng-Zong Yuan Cong-Hui Li Wen-Kai Zhao Fu-Ling Wu Lei Xin Hong Yin Shu-Feng Ye Xiao-Meng Zhang Yun-Fa Chen Jiangxi Province Research Institute of Rare Earths Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou341119China School of Rare Earths University of Science and Technology of ChinaHefei230026China Key Laboratory of Hunan Province for Advanced Carbon-Based Functional Materials School of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang414006China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing100190China

The development of cost-effective and highly stable electrocatalysts for oxygen evolution reactions holds paramount importance in practical hydrogen ***,we present a novel self-supported electrode comprising Ce-doped Ni-Fe-Se nanosheets grown on carbon cloth(Ni-Fe-Ce-Se/CC).This electrode was synthesized through a selenylation process,utilizing Ni-Fe-Ce-layered double hydroxide/carbon cloth(Ni-Fe-Ce LDH/CC)as the ***,Ni-Fe-Ce-Se/CC electrode demonstrates remarkable performance,requiring a low overpotential of 300 mV to attain a current density of 100 mA·cm^(-2)under harsh alkaline ***,the electrode exhibits exceptional stability during continuous operation for 100 *** into the underlying mechanisms was gained through a combination of experimental results and density functional theory *** findings reveal that Ce doping induces crystal structure deformation in Ni-Fe-Se and enhances electron enrichment around Ni *** structural modification optimizes the adsorption energy of oxygen-based intermediates on the Ni-Fe-Se *** work offers a valuable strategy for regulating the electron transfer and adsorption capabilities of transition metal selenide electrocatalysts through RE atoms doping,opening new avenues for enhanced electrocatalytic performance.

关键词： Ce doping Structure deformation Ni-Fe-Se Electron transfer Oxygen evolution

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The effect of protic ionic liquids incorporation on CO_(2) separation performance of Pebax-based membranes

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Chinese Journal of Chemical engineering 2022年第3期35卷 169-176页

作者： Haiyan Jiang Lu Bai Bingbing Yang Shaojuan Zeng Haifeng Dong Xiangping Zhang CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex SystemsBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516003China

The separation of carbon dioxide(CO_(2))is of great importance for environment protection and gas resource *** ionic liquids(ILs)-based gas separation membrane provides a new chance for efficient CO_(2)separation,while high permeability and selectivity of membranes is a great *** this study,the influence of two protic ILs with different anion([TMGH][Im]and[TMGH][PhO])on the CO_(2)separation performance of the prepared ILs/Pebax blended membranes were systematically investigated at different *** results showed the CO_(2)permeability exhibits the rising trend for ILs/Pebax blended membranes with the increment of IL ***,the[TMGH][Im]with low viscosity and high CO_(2)absorption capacity leads to the blended membranes showing better CO_(2)permeability and ideal CO_(2)selectivity than that of membranes with[TMGH][PhO]at high IL ***,with operating temperature increasing,the gas permeability of 20%(mass)[TMGH][Im]/Pebax blended membrane increases due to the decreasing viscosity of IL and the rising chain mobility of ***,the gas selectivity shows decreasing trend because CO_(2)absorption capacity obviously decreased at higher temperature.

关键词： CO_(2) Protic ionic liquids Membranes Pebax

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Comparative catalytic study on butene/isobutane alkylation over LaX and CeX zeolites: The influence of calcination atmosphere

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Chinese Journal of Chemical engineering 2022年第6期35卷 173-183页

作者： Zhiqiang Yang Ruirui Zhang Honghua Zhang Hongguo Tang Ruixia Liu Suojiang Zhang School of Chemical Engineering&Technology Tianjin UniversityTianjin 300072China Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Multiphase Complex SystemsCAS Key Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of Sciences100049 BeijingChina School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

Lanthanum-containing(LaX)and cerium-containing X zeolites(CeX)were prepared by a doubleexchange,double-calcination *** changing the calcination atmospheres between nitrogen and air,the Ce^(IV) contents in CeX zeolites were adjusted and their impacts on physicochemical properties and catalytic performance in isobutane alkylation were *** crystallinity of CeX zeolite was found to be negatively correlated with the Ce^(IV) *** i s believed to be due to the water formed during the oxidation of Ce^(III),which facilitates the framework *** a consequence,calcining in air resulted in a great elimination of strong Brønsted acid sites while under nitrogen protection,this phenomenon was mostly hindered and the sample’s acidity was *** tested in a continuously flowed slurry reactor,the catalyst lifetime for isobutane alkylation was found to be linearly related to the strong Brønsted acid *** addition,Ce^(3+)was found more benefit for the hydride transfer compared with La^(3+),which is ascribed to the stronger polarization effect on the CH bond of ***,the decline of hydride transfer activity can be slowed down by the catalytic cracking of the bulky *** on the product distribution,a new catalytic cycle of dimethylhexanes(DMHs)involving a direct formation of isobutene rather than tert-butyl carbocation was proposed in isobutane alkylation.

关键词： CeX zeolite Calcination atmosphere Isobutane alkylation Brønsted acid Hydride transfer

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A novel pathway for the preparation of Mg metal from magnesia

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Journal of Magnesium and Alloys 2022年第10期10卷 2847-2856页

作者： Zhimin Zhang Xuchen Lu Yan Yan State Key Laboratory of Multi-phase Complex systems Institute of Process EngineeringChinese Academy of ScienceHaidian DistrictBeijing 100190PR

High-purity anhydrous magnesium chloride was prepared from magnesia and ammonium *** chlorination process was analyzed and then the critical stages affecting the purity of anhydrous magnesium chloride were *** effect of sample dimension on the above critical stages was investigated *** purity guarantee mechanism of anhydrous magnesium chloride was *** that,magnesium metal was obtained via electrolyzing the anhydrous magnesium chloride-containing molten *** new process for the continuous production of magnesium metal from magnesia was proposed and *** incomplete chlorination reaction and the hydrolysis of anhydrous magnesium chloride are the two critical stages affecting the purity of the anhydrous magnesium *** dimension of the sample can influence reaction process and reaction mechanism,and thus the problems of incomplete chlorination reaction and hydrolysis can be solved *** magnesia content in anhydrous magnesium chloride was below 0.1 wt.%when the ratio of height to diameter of the sample was over *** content of impurities in the magnesium metal obtained met the specifications of the product *** current efficiency was(94.7±1.8)%and the electricity consumption was(9107±97)kW h/t.

关键词： Magnesium Electrolysis Anhydrous magnesium chloride Hydrolysis

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Phase transfer-based high-efficiency recycling of precious metal electrocatalysts

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Green Chemical engineering 2024年第1期5卷 68-74页

作者： Qing Zeng Shaonan Tian Yu Zhang Hui Liu Dong Chen Xinlong Tian Chaoquan Hu Jun Yang State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing100190China State Key Laboratory of Marine Resource Utilization in South China Sea Hainan Provincial Key Lab of Fine ChemistrySchool of Chemical Engineering and TechnologyHainan UniversityHaikou570228China Nanjing IPE Institute of Green Manufacturing Industry Nanjing211100China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing100049China

Recycling precious metals with high-efficiency is undoubtedly beneficial to optimize resource utilization for environmental remediation and sustainable ***,we report an efficient route to recycle the palladium(Pd)and platinum(Pt)electrocatalysts using a phase transfer *** strategy involves acidic dissolution of deactivated precious metal(Pd/Pt)electrocatalysts from their loading substrates,mixing with an ethanolic solution of dodecylamine(DDA),subsequent extraction of metal ions into a non-polar organic phase,and final reduction by sodium borohydride to reproduce high-performance electrocatalysts towards typical electrochemical reactions,e.g.,oxygen reduction reaction(ORR)and ethanol oxidation reaction(EOR).In specific,the transfer efficiencies are up to 98%and the final recovery rate is over 85%for Pd and Pt electrocatalysts in each *** approach symbolizes a facile and efficient way to recover precious metals,which might be applied to recycling a wide range of metals in various realms after appropriate modifications.

关键词： Precious metal Phase transfer Extraction Recovery Electrocatalyst

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engineering of Fe d-band center in Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles via orbital coupling for high-efficiency oxygen reduction electrocatalysis

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Nano Research 2025年第1期18卷 129-139页

作者： Jiayi Liu Jingwen Yin Yingzi Lin Mingxin Pang Huan Pang Songtao Zhang Lin Xu Jun Yang Yawen Tang Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023Chin a 2 State Key Laboratory of Multiphase Complex Systems Center of MesoscienceInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China Testing Center Yangzhou UniversityYangzhou 225009China

The deliberate engineering of the d-band center of metal site represents an effective strategy to boost the intrinsic electrocatalytic performance toward the oxygen reduction reaction(ORR).Herein,following a heterointerfaceinduced orbital coupling rationale,we report a judicious design of an efficient ORR electrocatalyst consisting of Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles in-situ encased into N-doped carbon nanofibers(abbreviated as Fe_(3)O_(4)/CeO_(2)@N-CNFs hereafter).The theoretic calculations uncover that the Fe_(3)O_(4)/CeO_(2)heterointerface-triggered orbital coupling can cause the down shift of the d-band center positions of Fe sites,which leads to the weakened chemisorption of oxygenated groups and lowered energy barrier for the potential-determining step,ultimately dramatically boosting the ORR intrinsic *** a consequence,the well-designed Fe_(3)O_(4)/CeO_(2)@N-CNFs display admirable ORR activity with a half-wave potential of 0.84 V and outstanding structural/electrochemical stability in an alkaline electrolyte,surpassing the commercial Pt/C benchmark and a majority of recently reported Fe_(3)O_(4)-based *** encouragingly,the Fe_(3)O_(4)/CeO_(2)@N-CNFsincorporated Zn-air battery outperforms the Pt/C-assembled counterpart with higher power density,larger energy density,and excellent cycling stability,serving as a competent candidate for ORR-involved renewable energy *** study offers an innovative approach for the rational manipulation of the d-band center and interfacial electron behavior of active sites toward the optimization of electrocatalytic performance.

关键词： hetero-nanoparticles electrospinning interfacial engineering orbital coupling oxygen reduction reaction

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Special Issue for the 14th Global Chinese Chemical engineering Symposium

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Frontiers of Chemical Science and engineering 2023年第10期17卷 1321-1322页

作者： Jesse Zhu Junwu Wang Particle Technology Research Centre Western UniversityLondonOntario N6A 5B9Canada State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

The Global Chinese Chemical engineering Symposium(GCCES)is a prestigious and world-wide platform for the communication and academic exchange of chemical science and *** special issue is a collection of the keynote lectures presented by the winners of Future Chemical engineering Scholars,the Global Award for Outstanding Young Female Chemical Engineers,and the International Award for Outstanding Young Chemical Engineers,selected by the International Scientific Committee of the GCCES.

关键词： engineering. Global Engineers

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A novel strategy of lithium recycling from spent lithium-ion batteries using imidazolium ionic liquid

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Chinese Journal of Chemical engineering 2022年第1期35卷 246-251页

作者： Hongshuai Zheng Jiaqi Huang Tao Dong Yifan Sha Haitao Zhang Jie Gao Suojiang Zhang CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInnovation Academy for Green ManufactureInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450002China Ningbo Institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201China

In light of the increasing demand for environmental protection and energy conservation,the recovery of highly valuable metals,such as Li,Co,and Ni,from spent lithium-ion batteries(LIBs)has attracted widespread *** conventional recycling strategies,however,suffer from a lack of lithium recycling,although they display high efficiency in the recovery of Co and *** this work,we report an efficient extraction process of lithium from the spent LIBs by using a functional imidazolium ionic *** extraction efficiency can be reached to 92.5%after a three-stage extraction,while the extraction efficiency of Ni-Co-Mn is less than 4.0%.The new process shows a high selectivity of lithium *** spectroscopy and ultraviolet are utilized to characterize the variations in the functional groups during extraction to reveal that the possible extraction mechanism is cation *** results of this work provide an effective and sustainable strategy of lithium recycling from spent LIBs.

关键词： Ionic liquid Lithium Selective extraction Spent lithium batteries Recovery

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