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Brøsted acidic pyridinium-based ILs catalyzed the selective dimerization of isobutene: Performance and in-situ NMR study

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Molecular Catalysis 2020年 482卷

作者： Yu, Xiaojia Liu, Ying Wang, Hui Cheng, Weiguo Wu, Youqing Zhang, Suojiang CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex System Beijing Key Laboratory of Ionic Liquids Clean Process Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Department of Chemical Engineering for Energy Resources East China University of Science and Technology Shanghai200237 China

Brøsted acidic pyridinium-based ILs of [NS][CF3SO3] and [NS][HSO4] have been synthesized for oligomerization of isobutene with the excellent conversion of 92.8% and the good selective dimerization at the temperature of below 100 °C. Hydroxyl-containing materials, especially ethanol, could facilitate catalytic activities to excellent conversions of isobutene and 84.2% selectivity of diisobutene. [NS][CF3SO3] could be recovered by a simple liquid-to-liquid separation and reused more than ten times without obvious loss of catalytic activities. The formation process of oligomers has been examined by in-situ NMR spectroscopy, and a step-by-step generation process of carbonium ions varying from C4+, C8+ to C12+ was proposed. The work behaves the significance of constructing a better catalysis system for highly selective dimerization of isobutene, and potential being scaled-up for industrialization. © 2019 Elsevier B.V.

关键词： Dimerization

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Corrigendum to “Ionic effect enhanced the adsorption of phosphorus-containing organics (PCOs) from complex wastewater” [Chem. Eng. J. 509 (2025) 161419]

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Chemical engineering Journal 2025年 513卷

作者： Zhiqiang Li Rongyue Wang Wenting Jia Pengge Ning Hongbin Cao State Key Laboratory of Biochemical Engineering Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of Sciences Beijing 100049 China Chemistry & Chemical Engineering Data Center Chinese Academy of Sciences Beijing 100049 China National Engineering Research Center of Green Recycling for Strategic Metal Resources Chinese Academy of Sciences Beijing 100049 China Institute of Process Engineering Chinese Academy of Science Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China

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Mineral Phase Evolution During Oxidation Roasting Pretreatment of Typical Carlin Gold Ore and Effects on Gold Leaching Efficiency

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SSRN 2022年

作者： Ma, Licheng Liu, Xiang Wang, Lei Wei, Lianqi State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China GRINM Resources and Environment Tech. Co. Ltd Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

Arsenious and sulphur-bearing micro-disseminated gold ore is a kind of typical refractory Carlin-Type. The gold in Carlin-Type gold ore grains is distributed finely, existing as invisible or submicroscopic gold, encapsulated in arsenopyrite and pyrite. The technical difficulty of treatment Carlin-Type gold ore lies in how to release the fine gold wrapped in pyrite and arsenopyrite. In this study, the oxidation roasting pre-treatment technique was used to treat the Carlin-Type gold ore. This included a two-stage roasting process: the arsenic was removed in first roasting process, and the sulphur was removed in second roasting process. The thermodynamic of roasting process was analyzed, and the mineral phase evolution of the roasting process was investigated by using XRD, SEM and EDS. Finally, a central composite experimental design was used to investigate the relationship between the independent (the second stage roasting temperature, sodium cyanide dosage, and leaching time) variables and the responses (leaching efficiency), with possible interactions between the independent variables and their effects on the leaching efficiency. The results suggest that for the first roasting temperature at 550 °C, and the second roasting at temperature 700 °C with air flow 2.5 L/min, the sodium cyanide dosage is 1.75 kg/t and leaching time is 27 h, a good leaching efficiency is obtained with 83.85%. © 2022, The Authors. All rights reserved.

关键词： Gold deposits

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Synergistic Catalysts for Lithium-Sulfur Batteries: Ni Single Atom and MoC Nanoclusters Composites

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Angewandte Chemie 2025年

作者： Chongchong Zhao Yanxia Liu Feng Huo Zhenzhen Guo Yurui Lu Bowen Sun Meng Li Hui Xu Min Zhang Hailin Fan Zixu Sun Andreu Cabot Yatao Zhang Henan Key Laboratory of Energy Storage Materials and Processes Zhengzhou Institute of Emerging Industrial Technology Zhengzhou 450000 China School of Chemical Engineering Zhengzhou University Zhengzhou 450000 China Longzihu New Energy Laboratory Zhengzhou 450000 China Beijing Key Laboratory of Solid State Battery and Energy Storage Process CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China Key Lab for Special Functional Materials of Ministry of Education School of Nanoscience and Materials Engineering Henan University Kaifeng 475004 China Catalonia Institute for Energy Research – IREC Sant Adrià de Besòs Barcelona 08930 Spain Catalan Institution for Research and Advanced Studies – ICREA Pg. Lluís Companys 23 Barcelona 08010 Spain

The practical application of sulfur (S) cathodes in lithium-sulfur (Li-S) batteries is hindered by the shuttling of soluble lithium polysulfides (LiPSs) and sluggish sulfur redox kinetics. Addressing these challenges requires advanced catalytic host materials capable of trapping LiPSs and accelerating Li-S redox reactions. However, single-site catalysts struggle to effectively mediate the complex multi-step and multi-phase sulfur conversion processes. In this study, we present a novel dual-site catalyst, Ni-MoC-NC, featuring nickel single atoms anchored to nitrogen sites (Ni-N 4 ) within a carbon nitride (NC) matrix and molybdenum carbide (MoC) nanoclusters. Experimental and theoretical analyses reveal that MoC sites efficiently catalyze the reduction of long-chain LiPSs (Li₂S₈ to Li₂S₄), while Ni-N 4 sites drive the reduction of short-chain LiPSs (Li₂S₄ to Li₂S), resulting in a synergistic enhancement of the complete Li-S redox process. When incorporated as a coating on the cathode side of a commercial polypropylene (PP) separator, the Ni-MoC-NC catalyst enhances sulfur utilization, suppresses LiPSs shuttling, and facilitates a uniform Li + -ion distribution, effectively mitigating the uncontrolled growth of lithium dendrites. Thereby, Li-S batteries employing an S/Ni-MoC-NC cathode and a Ni-MoC-NC@PP separator demonstrate outstanding performance, including an initial capacity of 1624 mAh g⁻¹ at 0.2C and 1142 mAh g⁻¹ at 1C, retaining 590 mAh g⁻¹ after 800 cycles. At a sulfur loading of 8.3 mg cm⁻ 2 and an electrolyte/sulfur ratio of 6 µL mg⁻¹, the system achieves an initial areal capacity of 9.57 mAh cm⁻ 2 at 0.1C, showcasing significant promise for practical applications.

关键词： Dual active sites Li-S battery Lithium polysulfide Long-chain LiPSs Ni-MoC-NC catalysts Short-chain LiPSs

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Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts

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Chinese Journal of Catalysis 2020年第11期41卷 1745-1753页

作者： Zixia Wan Qiuting He Jundan Chen Tayirjan Taylor Isimjan Bao Wang Xiulin Yang Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilin 541004GuangxiChina State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Saudi Arabia Basic Industries Corporation(SABIC)at King Abdullah University of Science and Technology(KAUST) Thuwal 23955-6900Saudi Arabia

As the kinetically sluggish oxygen evolution reaction(OER)is considered to be a bottleneck in overall water splitting,it is necessary to develop a highly active and stable electrocatalyst to overcome this ***,we successfully fabricated a three-dimensional iron-dysprosium oxide co-regulated in-situ formed MOF-Ni arrays on carbon cloth(FeDy@MOF-Ni/CC)through a facile two-step hydrothermal *** studies demonstrate that the designed FeDy@MOF-Ni/CC catalyst requires an overpotential of only 251 mV to reach 10 mA cm-2 with a small Tafel slope of 52.1 mV ***,the stability declined by only 5.5%after 80 h of continuous testing in 1.0 M ***,a cell voltage of only 1.57 V in the overall water splitting system is sufficient to achieve 10 mA cm-2;this value is far better than that of most previously reported *** excellent catalytic performance originates from the unique 3D rhombus-like structure,as well as coupling synergies of Fe-Dy-Ni *** combination of lanthanide and transition metal species in the synthesis strategy may open entirely new possibilities with promising potential in the design of highly active OER electrocatalysts.

关键词： Metal-organic frameworks Dysprosium oxide Synergistic effect Oxygen evolution Water splitting

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The potential of integrated bio-and chemical-engineering—for a more sustainable world

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green Chemical engineering 2020年第1期1卷 9-15页

作者： Lene Lange Yuhong Huang BioEconomy Research&AdvisoryCopenhagen2500ValbyDenmark 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 SciencesBeijing100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing100190China

*** Developing bioprocessing and a wide and growing portfolio of biobased products have been designed and positioned to substitute for chemical synthesis and fossil-based products;all aimed at a more sustainable and responsible use of the global *** has come to initiate a new bio-based era,where integrating the use of biological and chemical engineering delivers even more resource efficient and sustainable contributions to mitigate and solve societal challenges,climate change,biodiversity,nutrition and *** this paper we will give a palette of concrete examples on where synergy can be harvested,by combining the approaches and the methodologies of both bio-and chemical-engineering(Fig.1).

关键词： integrating chemical potential

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Corrigendum to “Achieving efficient pretreatment of corn straw at elevated temperatures via constraining cellulose degradation” [Chem. Eng. J. 454 (2023) 140480]

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Chemical engineering Journal 2023年 476卷

作者： Jiming Yang Shulin Wang Fudong Bai Xingmei Lu Wei He Zheng Fang Ning Zhu Kai Guo College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 211816 China Sinopec Dalian Research Institute of Petroleum and Petrochemicals No.96 Nankai Street Lushunkou District Dalian Liaoning Province China Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Multiphase Complex Systems CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University Nanjing 210009 China

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The use of a ternary metal sulfide loading on carbon fibers as the sulfur host for high performance low-temperature lithium sulfur batteries

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Carbon 2025年 235卷

作者： Xin He Huai-yang Zuo Ru Xiao Zhuo-yan Qu Zhen-hua Sun Bao Wang Feng Li School of Materials Science and Engineering University of Science and Technology of China Shenyang 110016 China Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

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Membrane-Free Electrocatalytic Co-Conversions of PBS Waste Plastics and Maleic Acid into High-Purity Succinic Acid Solid

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Angewandte Chemie 2024年第44期136卷

作者： Bo Zhou Kai Shi Xue Teng Prof. Zhenhua Li Prof. Lisong Chen Prof. Jianlin Shi State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 China State Key Laboratory of Chemical Resource Engineering College of Chemistry Beijing University of Chemical Technology Beijing 100029 China Institute of Eco-Chongming Shanghai 202162 China State Key Laboratory of High Performance Ceramics and Superfine Microstructures Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 P. R. China

Plastic pollution, an increasingly serious global problem, can be addressed through the full lifecycle management of plastics, including plastics recycling as one of the most promising approaches. System design, catalyst development, and product separation are the keys in improving the economics of electrocatalytic plastics recycling. Here, a membrane-free co-production system was devised to produce succinic acid (SA) at both anode and cathode respectively by the co-electrolysis of polybutylene succinate (PBS) waste plastics and biomass-derived maleic acid (MA) for the first time. To this end, Cr 3+ -Ni(OH) 2 electrocatalyst featuring much enhanced 1,4-butanediol (BDO) oxidation reaction (BOR) activity has been synthesized and the role of doped Cr has been revealed as an “electron puller” to accelerate the rate-determining step (RDS) in the Ni 2+ /Ni 3+ cycling. Impressively, an extra-high SA production rate of 3.02 g h −1 and ultra-high apparent Faraday efficiency towards SA (FE apparent =181.5 %) have been obtained. A carbon dioxide-assisted sequential precipitation approach has been developed to produce high-purity SA and byproduct NaHCO 3 solids. Preliminary techno-economic analysis demonstrates that the reported system is economically profitable and promising for future industrial applications.

关键词： Co-production of succinic acid Purification of high-purity succinic acid Recycling of PBS waste plastics Nickel-based electrocatalysts Alcohol electrooxidation

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Organic-Free Synthesis of High-Silica Zeolite Y with Aluminophosphate as the Aluminum Carrier

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Angewandte Chemie 2025年第10期137卷

作者： Qingdi Zhao Jiejie Ling Dr. Jilong Wang Yan Gao Hailang Liu Zhenghan Zhang Dr. Jingang Jiang Prof. Akira Nakayama Prof. Jian Li Prof. Koki Muraoka Prof. Peng Wu Prof. Le Xu State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University 30 South Puzhu Road Nanjing 211816 China State Key Laboratory of Petroleum Molecular and Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663 North Zhongshan Road Shanghai 200062 China State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan Suzhou Laboratory Suzhou 210023 China

The wide application of zeolite Y in petrochemical industry is well-known as one of the milestones in zeolite chemistry and heterogeneous catalysis. However, the traditional organic-free synthesis typically produces (hydro)thermally unstable zeolite Y with Si/Al atomic ratio (SAR) less than 2.5. Inspired by drug delivery process in which active components are kinetically controlled released, we develop a unique approach based on the pre-synthesized aluminum carrier to prepare one of the most siliceous zeolite Y with SAR up to 3.44 without using organics. The crystalline or amorphous aluminophosphates serve as the ideal carrier for the controlled incorporation of Al into zeolite framework during zeolite Y crystallization. Experimental and theoretical results reveal that the partial introduction of aluminophosphate as Al source would rationally regulate the crystallization kinetics, facilitating the formation of high-silica zeolite Y with random Al distribution. This approach enhances the hydrothermal stability and catalytic performance of zeolite Y in benchmark reaction.

关键词： zeolite synthesis aluminosilicate crystal growth acid property heterogeneous catalysis

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