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Chinese Chemical Letters 2020年第6期31卷 1392-1397,F0002页

作者： Ge Song Zonglin Yi Lijing Xie Zhihong Bi Qian Li Jingpeng Chen Qingqiang Kong Chengmeng Chen cas Key Laboratory of Carbon Materials Institute of Coal ChemnistryChinese Academy of SciencesTaiyuan 030001China University of Chinese Academy of Sciences Beijing 100049China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Department of Chemical Engineering Waterloo Institute of NanotechnologyUniversity of WaterlooWaterlooOntario N2L 3G1Canada Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBejjing 100049China

Two-dimensional(2 D)heterostructural Ni2 P/rGO is successfully fabricated by in-situ phosphating selfassembled NiO/rGO composites and shows the enhanced electrochemical *** this design,the rGO sheets effectively reduce the lattice strain created during the phase transformation from NiO to Ni2 P,thereby maintaining ultrathin nanostructures of Ni2 *** resulting Ni2 P/rGO layered heterostructure gives the composite plenty of pores or channels,good electrical conductivity and well-exposed active *** functional theory(DFT)calculation further demonstrates that the Fermi energy level and electron localize of near Ni atoms in Ni2 P is higher than that of NiO,which endow Ni2 P with faster and more reversible redox reactivity in *** from their structural and compositional merits,the as-synthesized Ni2 P/rGO exhibits high specific discharge capacity and excellent rate ***,a hybrid supercapacitor built with Ni2 P/rGO and activated carbon shows a high specific energy of 38.6 Wh/kg at specific power of 375 W/kg.

关键词： 2D heterostructure Ni2P/rGO Electrochemical active Supercapacitor DFT

Rational design of CO_(2)electroreduction cathode via in situ electrochemical phase transition

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Journal of Energy Chemistry 2022年第3期31卷 603-611,I0016页

作者： Shiqing Hu Huan Li Xue Dong Zhongwei Cao Bingjie Pang Liming Zhang Wenguang Yu Jianping Xiao Xuefeng Zhu Weishen Yang State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Dalian National Laboratory for Clean Energy Chinese Academy of SciencesDalian 116023LiaoningChina

CO_(2)electroreduction reaction(CO_(2)RR),combined with solid oxide electrolysis cells(SOECs),is a feasible technology for the storage of renewable electric energy,while its development is limited by the catalytic activity and stability on ***,a novel garnet oxide(Gd_(3)Fe_(5)O_(12))cathode is designed,where the garnet oxide is converted to perovskite oxide and iron via in situ electrochemical phase transition during CO_(2)electroreduction,resulting in high activity with Faradaic efficiency close to 100%and great stability over 1000 h galvanostatic test.A variety of experimental characterizations and density functional theory calculations indicate that in situ exsolved Fe clusters can effectively enhance the adsorption energies of intermediates and lowering the CO_(2)dissociation *** modelling confirms that CO_(2)RR goes through a dissociative adsorption mechanism and the electronic transfer for CO_(2)dissociation is the rate-determining step.

关键词： Carbon dioxide electroreduction Electrochemical phase transition Garnet oxides Perovskite oxides Iron nanoparticles

Graded 2D/3D(CF_(3)-PEA)_(2)FA_(0.85)MA_(0.15)Pb_(2)I_(7)/FA_(0.85)MA_(0.15)PbI_(3) heterojunction for stable perovskite solar cell with an efficiency over 23.0%

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Journal of Energy Chemistry 2022年第2期31卷 480-489页

作者： Yuan Cai Jialun Wen Zhike Liu Fang Qian Chenyang Duan Kun He Wenjing Zhao Sheng Zhan Shaomin Yang Jian Cui Shengzhong(Frank)Liu Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119ShaanxiChina iChEM Dalian Institute of Chemical PhysicsUniversity of Chinese Academy of SciencesDalian National Laboratory for Clean EnergyChinese Academy of SciencesDalian 116023LiaoningChina

The replacement of small cations with bulkier organic cations containing long alkyl chains or benzene rings to form a thin two-dimensional(2D)perovskite passivation layer on three-dimensional(3D)perovskite(2D/3D)has become a promising strategy for improving both the efficiency and stability of perovskite solar cells(PSCs).The 2 D layer defines the interfacial chemistry and physics at the 2D/3D bilayer and endows the 2D/3D structure with better chemical and thermal ***,2D/3D(CF_(3)-PEA)_(2) FA_(0.85)MA_(0.15)Pb_(2)I_(7)/FA_(0.85)MA_(0.15)PbI_(3) planar heterojunction perovskite was produced using a facile interfacial ion exchange *** 2 D(CF_(3)-PEA)_(2) FA_(0.85)MA_(0.15)Pb_(2)I_(7) capping layer can not only passivate the FA_(0.85)MA_(0.15)PbI_(3) film but also act as super-hydrophobic layer to inhibit water diffusion and significantly enhance the *** 2D capping layer can also establish a unique graded band structure at the perovskite/Spiro-OMeTAD interface and lead to p-type doping for Spiro-OMeTAD layer which is beneficial for efficient charge *** PSCs based on this 2D/3D heterojunction yield a champion power conversion efficiency(PCE)of 23.1%and improved *** device maintains 84%output for 2400 h aging under ambient environmental conditions without encapsulation,and maintains 81%for 200 h under illumination with *** work will inspire the design of more fluorinated 2D perovskite interfaces for advanced photovoltaics and beyond.

关键词： Perovskite solar cells Heterojunction Two-dimensional FA_(0.85)MA_(0.15)PbI_(3) High efficiency

Modification strategies for metal-organic frameworks targeting at mem brane-based gas separations

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Green Chemical Engineering 2021年第1期2卷 17-26页

作者： Chenyu Zhu Yuan Peng Weishen Yang State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China University of Chinese Academy of Sciences 19A Yuquan RoadBeijing100049China Dalian National Laboratory for Clean Energy Dalian116023China

Metal-organic frameworks(MOFs)hold great promises as membrane candidates for highly efficient separation applications,benefiting from the diversified structures,high surface areas and adjustable chemical ***,non-selective defects and framework flexibility are two main concerns which would attenuate the ultimate separation performance and *** helps to orientationally optimize the gas adsorption and diffusion behaviors via manipulation towards framework chemical components,aperture sizes,nanocages,and intercrystalline/intracrystalline defects,consequently promoting membrane separation performance and membrane *** view of recent progresses of modification on MOF-based membranes,two categories of modification strategies were summarized,namely post-synthetic modification and in situ *** the merits and demerits are ***,challenges and opportunities for the current modification strategies were discussed from our perspectives,with an expectation to provide guidelines to the future development of MOF-based membranes which were aspired to reach the commercially attractive performance region.

关键词： Metal-organic framework Modification Membrane Gas separation

Dalian Institute of Chemical Physics, Chinese Academy of Sciences

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National Science Review 2019年第4期6卷 843-853页

作者： Zhang, Yan Zhao, Weijie

Dalian Institute of Chemical Physics(DICP) is a comprehensive chemical-engineering research institute with a strong international reputation, which has made significant contributions to national economic construction, national security and the progress of science and technology(S&T). With the name of the Scientific Research Institute of Dalian University, the history of DICP began on 19 March 1949. Since then,

关键词： Chinese Academy of Sciences Dalian Institute of Chemical Physics

Two-dimensional Boron Nitride for Electronics and Energy Applications

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Energy & Environmental Materials 2022年第1期5卷 10-44页

作者： Jiemin Wang Liangzhu Zhang Lifeng Wang Weiwei Lei Zhong-Shuai Wu School of New Energy and Materials Southwest Petroleum UniversityChengdu Sichuan 610500China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Institute for Frontier Materials Deakin UniversityWaurn Ponds CampusLocked Bag 20000Geelong Vic.3220Australia Dalian National Laboratory for Clean Energy Chinese Academy of Sciences457 Zhongshan RoadDalian 116023China

Two-dimensional(2D)boron nitride(BN),the so-called“white graphene,”has demonstrated a great potential in various fields,particularly in electronics and energy,by utilizing its wide bandgap(~5.5 eV),superior thermal stability,high thermal conductance,chemical inertness,and outstanding dielectric ***,to further optimize the performances from the view of structure-property relationship,the determinative factors such as crystallite sizes,layer thickness,dispersibility,and surface functionalities should be precisely controlled and ***,in this review,the synthesis and functionalization methods including“top-down”and“bottom-up”strategies,and non-covalent and covalent modifications for 2D BN are systematically classified and discussed at first,thus catering for the requirements of versatile ***,the progresses of 2D BN applied in the fields of microelectronics such as fieldeffect transistors and dielectric capacitors,energy domains such as thermal energy management and conversion,and batteries and supercapacitors are summarized to highlight the importance of 2D ***,these contents not only contain the state-of-the-art 2D BN composites,but also bring the current novel design of 2D BN-based microelectronic ***,the challenges and perspectives are proposed to better broaden the scope of this ***,this review will pave an all-around way for understanding,utilizing,and applying 2D BN in future electronics and energy applications.

关键词： boron nitride electronics energy functionalization nanosheets two-dimensional materials

Process Intensification in Pneumatically Agitated Slurry Reactors

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Engineering 2021年第3期7卷 304-325页

作者： Shujun Geng Zai-Sha Mao Qingshan Huang Chao Yang Key Llaboratory of Biofues Qingdao Institute of Eioenergy and Bioprocess TednologyChinese ALcadermy of SsciencesQingdao 266101China Dalian Narional Labor atary or dlean Energy Dalian lustitue of chemical PhysitsChinese Academy of SciancesDalian 11623China Key Laboratary of areen Proces and Engireering Iistitue of Poess Eingireeringhinese Academy of SdercesBeijing 100190Ohina

Pneumatically agitated slurry reactors,including bubble column reactors and airlift loop reactors(ALRs),are important gas-liquid-solid multiphase *** reactors have been widely applied in many processes,especially in the biological fermentation and energy chemical industry,due to their low shear stress,good mixing,perfect mass-/heat-transfer properties,and relatively low *** further improve the performance of slurry reactors(i.e.,mixing and mass/heat transfer)and to satisfy industrial require-ments(e.g.,temperature control,reduction of back-mixing,and product separation),the process intensi-fication of slurry reactors is *** article starts by reviewing the latest advancements in the intensification of mixing and mass/heat transfer in these two types of *** then summarizes process-intensification methods for mixing and separation that allow continuous production in these slurry ***-intensification technology that integrates directional flow in an ALR with simple solid-liquid separation in a hydrocyclone is recommended for its high efficiency and low *** arti-cle also systematically addresses vital considerations and challenges,including flow regime discrimina-tion,gas spargers,solid particle effects,and other concerns in slurry *** introduces the progress of numerical simulation using computational fluid dynamics(CFD)for the rational design of slurry reactors and discusses difficulties in ***,it presents conclusions and perspectives on the design of industrial slurry reactors.

关键词： Slurry reactors Pneumatic agitation Bubble column Airlift loop reactor Process intensification Solid particles

Kinetic regulation of MXene with water-in-LiCl electrolyte for high-voltage micro-supercapacitors

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National Science Review 2022年第7期9卷 97-105页

作者： Yuanyuan Zhu Shuanghao Zheng Pengfei Lu Jiaxin Ma Pratteek Das Feng Su Hui-Ming Cheng Zhong-Shuai Wu State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian National Laboratory for Clean Energy Chinese Academy of Sciences University of Chinese Academy of Sciences Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of Sciences Shenzhen International Graduate School Tsinghua University

MXenes are one of the key materials for micro-super capacitors(MSCs),integrating miniaturized energy-storage components with ***,the energy densities of MSCs are greatly hampered by MXenes’ narrow working potential window(typically≤0.6 V) in aqueous ele ***,we report the fabrication of high-voltage MXene-MSCs through the efficient regulation of reaction kinetics in 2 D Ti3C2TxMXene microelectrodes using a water-in-LiCl(WIL,20 m LiCl) salt gel ***,the intrinsic energy-storage mechanism of MXene microelectrodes in WIL,which is totally different from traditional electrolytes(1 m LiCl),was revealed through in situ and ex situ *** validated that the suppression of MXene oxidation at high anodic potential occurred due to the high content of WIL regulating anion intercalation in MXene electrodes,which effectively broadened the voltage window of ***,the symmetric planar MXene-MSCs presented a record operating voltage of 1.6 V,resulting in an exceptionally high volumetric energy density of 31.7 mWh *** the ultra-high ionic conductivity(69.5 mS cm-1) and ultralow freezing point(-57℃) of the WIL gel electrolyte, our MSCs could be operated in a wide temperature range of-40 to 60℃,and worked for a long duration even at-40℃,demonstrative of its practicality in extreme environments.

关键词： MXene micro-supercapacitors water-in-LiCl aqueous high voltage wide temperature

A general bimetal-ion adsorption strategy to prepare nickel single atom catalysts anchored on graphene for efficient oxygen evolution reaction

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Journal of Energy Chemistry 2020年第4期29卷 52-57页

作者： Yingqi Xu Weifeng Zhang Yaguang Li Pengfei Lu Zhong-Shuai Wu Hebei Key Lab of Optic-electronic Information and Materials The College of Physics Science and TechnologyHebei UniversityBaoding 071002HebeiChina Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina

Single-atom catalysts (SACs) supported on two-dimensional (2D) materials are highly attractive for maximizing their catalytic ***,graphene based SACs are primarily bonded with nitrogen and carbon sites,resulting in poor performance for the oxygen evolution reaction (OER).Herein,we develop a general bimetal-ion adsorption strategy for the synthesis of individually dispersed Ni SACs anchored on the oxygenated sites of ultrathin reduced graphene oxide as efficient OER *** resultant Ni SACs for OER in alkaline electrolyte exhibit a highly stable overpotential of 328 mV at the current density of 10 mA cm^-2,and Tafel slope of 84 mV dec^-1 together with long-term durability and negligible degradation for 50 h,which is greatly outperform its counterparts of nitrogen bonded Ni SACs (564 mV,364 mV dec^-1) and Ni(OH)2 nanoparticles anchored on graphene (450 mV,142 mV dec^-1),and most reported Ni based OER ***,the extended X-ray absorption fine structure at the Ni K-edge and theoretical simulation reveal that the nickel-oxygen coordination significantly boost OER ***,this work will open numerous opportunities for creating novel-type 2D SACs via oxygen-metal bonding as highly robust OER catalysts.

关键词： Single atom catalyst Nickel Graphene Oxygen evolution reaction Electrocatalysts

Aqueous high-voltage all 3D-printed micro-supercapacitors with ultrahigh areal capacitance and energy density

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Journal of Energy Chemistry 2021年第12期30卷 514-520,I0012页

作者： Yu Liu Shuanghao Zheng Jiaxin Ma Yuanyuan Zhu Jiemin Wang Xinliang Feng Zhong-Shuai Wu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina b Center for Advancing Electronics Dresden&Department of Chemistry and Food Chemistry.Technische Universitat Dresden DresdenGermany University of Chinese Academy of Sciences Beijing 100049China Dalian National Laboratory for Clean Energy Dalian 116023Liaoning.China

With the rapid development of integrated and miniaturized electronics,the planar energy storage devices with high capacitance and energy density are in enormous ***,the advanced manufacture and fast fabrication of microscale planar energy units are of great ***,we develop aqueous planar micro-supercapacitors(MSCs) with ultrahigh areal capacitance and energy density via an efficient all-3 D-printing strategy,which can directly extrude the active material ink and gel electrolyte onto the substrate to prepare electrochemical energy storage *** the printed active carbon/exfoliated graphene(AC/EG) electrode ink and electrolyte gel are highly processable with outstanding conductivity(~97 S cm^(-1) of electrode;-34.8 mS cm^(-1) of electrolyte),thus benefiting the corresponding shaping and electrochemical ***,the 3 D-printed symmetric MSCs can be operated stably at a high voltage up to 2.0 V in water-in-salt gel electrolyte,displaying ultrahigh areal capacitance of2381 mF cm^(-2) and exceptional energy density of 331 μWh cm^(-2),superior to previous printed micro energy *** addition,we can further tailor the integrated 3 D-printed MSCs in parallel and series with various voltage and current outputs,enabling metal-free ***,our all-3 D-printed MSCs place a great potential in developing high-power micro-electronics fabrication and integration.

关键词： 3D printing Micro-supercapacitors High-voltage Water-in-salt Graphene