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Three-Dimensional Cobalt Hydroxide Hollow Cube/Vertical Nanosheets with High Desalination Capacity and Long-Term Performance Stability in Capacitive Deionization

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Research 2021年第1期2021卷 606-619页

作者： Yuecheng Xiong Fei Yu Stefanie Arnold Lei Wang volker presser Yifan Ren Jie Ma State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Research Center for Environmental Functional Materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai 200092China College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai 201306China INM-Leibniz Institute for New Materials 66123 SaarbrückenGermany Department of Materials Science and Engineering Saarland University66123 SaarbrückenGermany Saarene-Saarland Center for Energy Materials and Sustainability 66123 SaarbrückenGermany Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Faradaic electrode materials have significantly improved the performance of membrane capacitive deionization,which offers an opportunity to produce freshwater from seawater or brackish water in an energy-efficient ***,Faradaic materials hold the drawbacks of slow desalination rate due to the intrinsic low ion diffusion kinetics and inferior stability arising from the volume expansion during ion intercalation,impeding the engineering application of capacitive ***,a pseudocapacitive material with hollow architecture was prepared via template-etching method,namely,cuboid cobalt hydroxide,with fast desalination rate(3.3 mg(NaCl)·g^(-1)(h-Co(OH)2)·min^(-1)at 100 mA·g^(-1))and outstanding stability(90%capacity retention after 100 cycles).The hollow structure enables swift ion transport inside the material and keeps the electrode intact by alleviating the stress induced from volume expansion during the ion capture process,which is corroborated well by in situ electrochemical dilatometry and finite element ***,benefiting from the elimination of unreacted bulk material and vertical cobalt hydroxide nanosheets on the exterior surface,the synthesized material provides a high desalination capacity(117±6 mg(NaCl)·g^(-1)(h-Co(OH)2)at 30 mA·g^(-1)).This work provides a new strategy,constructing microscale hollow faradic configuration,to further boost the desalination performance of Faradaic materials.

关键词： electrode cobalt Cube

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Molecular Understanding of Charge Storage in MoS_(2)Supercapacitors with Ionic Liquids

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Energy & Environmental Materials 2021年第4期4卷 631-637页

作者： Zhun Liang Chang Zhao Wei Zhao Yuan Zhang Pattarachai Srimuk volker presser Guang Feng State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan Hubei 430074China Nano Interface Center for Energy School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhan Hubei 430074China Department of Chemical and Biomolecular Engineering Vanderbilt University2201 West End AvenueNashville TN 37235USA INM-Leibniz Institute for New Materials Campus D22Saarbrucken 66123Germany Saarland University Campus D22Saarbrucken 66123Germany

Owing to high electrical conductivity and ability to reversibly host a variety of inserted ions,2D metallic molybdenum disulfide(1 T-MoS_(2))has demonstrated promising energy storage performance when used as a supercapacitor ***,its charge storage mechanism is still not fully understood,in particular,how the interlayer spacing of 1 T-MoS_(2)would affect its capacitive *** this work,molecular dynamics simulations of 1 T-MoS_(2)with interlayer spacing ranging from 0.615 to 1.615 nm have been performed to investigate the resulting charge storage capacity in ionic *** reveal a camel-like capacitance-potential relation,and MoS_(2)with an interlayer spacing of 1.115 nm has the highest volumetric and gravimetric capacitance of118 F cm^(-3)and 42 F g^(-1),*** ions in MoS_(2)with an interlayer spacing of 1.115 nm diffuse much faster than with interlayer spacings of 1.365 and 1.615 nm,the MoS_(2)with larger interlayer spacing has a much faster-charging *** analyses reveal that the ion number density and its charging speed,as well as ion motion paths,have significant impacts on the charging *** work helps to understand how the interlayer spacing affects the interlayer ion structures and the capacitive performance of MoS_(2),which is important for revealing the charge storage mechanism and designing MoS_(2)supercapacitor.

关键词： charge storage mechanism ionic liquids molecular dynamics simulation molybdenum disulfide supercapacitors

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Continuous Lithium-Ion Extraction From Seawater and Mine Water With a Fuel Cell System and Ceramic Membranes

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Energy & Environmental Materials 2024年第6期7卷 254-261页

作者： Cansu Kök Lei Wang Jean Gustavo A.Ruthes Antje Quade Matthew E.Suss volker presser INM–Leibniz Institute for New Materials Campus D2266123Saarbr¨uckenGermany Department of Materials Science&Engineering Saarland UniversityCampus D2266123Saarbr¨uckenGermany Leibniz Institute for Plasma Science and Technology Felix-Hausdorff-Straße 217489GreifswaldGermany Faculty of Mechanical Engineering Technion–Israel Institute of TechnologyHaifa3200003Israel Wolfson Department of Chemical Engineering Technion–Israel Institute of TechnologyHaifa3200003Israel Grand Technion Energy Program Technion–Israel Institute of TechnologyHaifa3200003Israel Saarene–Saarland Center for Energy Materials and Sustainability Campus C4266123Saarbr¨uckenGermany

The demand for electronic devices that utilize lithium is steadily increasing in this rapidly advancing technological *** high-purity lithium in an environmentally friendly way is challenging by using commercialized ***,we propose the first fuel cell system for continuous lithium-ion extraction using a lithium superionic conductor membrane and advanced *** fuel cell system for extracting lithium-ion has demonstrated a twofold increase in the selectivity of Li^(+)/Na^(+)while producing *** data show that the fuel cell with a titania-coated electrode achieves 95%lithium-ion purity while generating 10.23 Wh of energy per gram of *** investigation revealed that using atomic layer deposition improved the electrode's uniformity,stability,and electrocatalytic *** 2000 cycles determined by cyclic voltammetry,the electrode preserved its stability.

关键词： atomic layer deposition cation selectivity electrochemical lithium-ion extraction fuel cell

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Influence of structural depth of laser-patterned steel surfaces on the solid lubricity of carbon nanoparticle coatings

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Friction 2023年第7期11卷 1276-1291页

作者： Timothy MACLUCAS Lukas DAUT Philipp GRÜTZMACHER Maria Agustina GUITAR volker presser Carsten GACHOT Sebastian SUAREZ Frank MÜCKLICH Chair of Functional Materials Saarland UniversitySaarbrücken 66123Germany Institute for Engineering Design and Product Development TU WienWien 1060Austria INM–Leibniz Institute for New Materials Saarbrücken 66123Germany Department of Materials Science&Engineering Saarland UniversitySaarbrücken 66123Germany Saarene-Saarland Center for Energy Materials and Sustainability Saarbrücken 66123Germany

Carbon nanoparticle coatings on laser-patterned stainless-steel surfaces present a solid lubrication system where the pattern's recessions act as lubricant-retaining *** study investigates the influence of the structural depth of line patterns coated with multi-walled carbon nanotubes(CNTs)and carbon onions(COs)on their respective potential to reduce friction and *** laser interference patterning(DLIP)with a pulse duration of 12 ps is used to create line patterns with three different structural depths at a periodicity of 3.5μm on AISI 304 steel ***,electrophoretic deposition(EPD)is applied to form homogeneous carbon nanoparticle coatings on the patterned *** ball-on-disc experiments are conducted on the as-described surfaces with an alumina counter body at a load of 100 *** results show that the shallower the coated structure,the lower its coefficient of friction(COF),regardless of the particle ***,with a minimum of just below 0.20,CNTs reach lower COF values than COs over most of the testing *** resulting wear tracks are characterized by scanning electron microscopy,transmission electron microscopy,and energy-dispersive X-ray *** friction testing,the CNTs remain in contact,and the immediate proximity,whereas the CO coating is largely *** of structural depth,no oxidation occurs on CNT-coated surfaces,whereas minor oxidation is detected on CO-coated wear tracks.

关键词： solid lubricant coatings carbon nanotubes carbon onions direct laser interference patterning(DLIP)surface structuring electrophoretic deposition(EPD)

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Recent Advances in Nanoengineering of Electrode-Electrolyte Interfaces to Realize High-Performance Li-Ion Batteries

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Energy & Environmental Materials 2024年第3期7卷 1-13页

作者： Na-Yeong Kim Ilgyu Kim Behnoosh Bornamehr volker presser Hiroyuki Ueda Ho-Jin Lee Jun Young Cheong Ji-Won Jung School of Materials Science and Engineering University of UlsanTechno saneop-ro 55 beon-gilNam-guUlsan 44776Korea INM-Leibniz Institute for New Materials Campus D2266123Saarbrücken Germany Department of Materials Science and Engineering Campus D2266123Saarbrücken Germany saarene-Saarland Center for Energy Materials and Sustainability Campus C4266123Saarbrücken Germany Institute for Frontier Materials(IFM) Deakin University221 Burwood HighwayBurwood Victoria 3125Australia Battery Research and Innovation Hub Deakin University5/154 Highbury RoadBurwood Victoria 3125Australia Bavarian Center for Battery Technology(BayBatt)and Department of Chemistry University of BayreuthUniversitatsstraBe 3095447Bayreuth Germany

A suitable interface between the electrode and electrolyte is crucial in achieving highly stable electrochemical performance for Li-ion batteries,as facile ionic transport is *** research and development have recently been conducted to form a stable interface between the electrode and ***,it is essential to investigate emerging knowledge and contextualize *** nanoengineering of the electrode-electrolyte interface has been actively researched at the electrode/electrolyte and interphase *** review presents and summarizes some recent advances aimed at nanoengineering approaches to build a more stable electrode-electrolyte interface and assess the impact of each approach ***,future perspectives on the feasibility and practicality of each approach will also be reviewed in ***,this review aids in projecting a more sustainable research pathway for a nanoengineered interphase design between electrode and electrolyte,which is pivotal for high-performance,thermally stable Li-ion batteries.

关键词： battery electrode electrolyte interface lithium nanoengineering

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Selective Pb^(2+) removal and electrochemical regeneration of fresh and recycled FeOOH

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Nano Research 2023年第7期16卷 9352-9363页

作者： Lei Wang Lexane Deligniere Samantha Husmann Regina Leiner Carsten Bahr Shengjie Zhang Chaochao Dun Matthew M.Montemore Markus Gallei Jeffrey J.Urban Choonsoo Kim volker presser INM—Leibniz Institute for New Materials Campus D22Saarbrücken 66123Germany Department of Materials Science and Engineering Saarland UniversityCampus D22Saarbrücken 66123Germany Polymer Chemistry Saarland UniversityCampus C42Saarbrücken 66123Germany 4 GEH Wasserchemie GmbH&Co.KGAdolf-Köhne-Straße Osnabrück 49090 Germany Department of Chemical and Biomolecular Engineering Tulane UniversityNew OrleansLA 70118USA The Molecular Foundry Lawrence Berkeley National Laboratory BerkeleyBerkeleyCA 94720USA Saarene-Saarland Center for Energy Materials and Sustainability Campus C42Saarbrücken 66123Germany Department of Environmental Engineering with Institute of Energy/Environment Convergence Technologies Kongju National University1223-24 Cheonan-daeroCheonan-si 31080Republic of Korea Department of Future Convergence Engineering Kongju National University1223-24 Cheonan-daeroCheonan-si 31080Republic of Korea

Heavy metal pollution is a key environmental *** extracting heavy metals could accomplish water purification and resource recycling *** is a promising approach with a facile process,adaptability for the broad concentration of feed water,and high ***,the adsorption method faces challenges in synthesizing highperformance sorbents and regenerating adsorbents *** is an environmentally friendly sorbent with low-cost production on a large ***,the selectivity behavior and regeneration of FeOOH are seldom ***,we investigated the selectivity of FeOOH in a mixed solution of Co^(2+),Ni^(2+),and Pb^(2+)and proposed to enhance the capacity of FeOOH and regenerate it by using external *** charge,the FeOOH electrode shows a Pb^(2+)uptake capacity of 20 mg/*** applying a voltage of-0.2/+0.8 V,the uptake capacity increases to a maximum of 42 mg/g and the desorption ratio is 70%-80%.In 35 cycles,FeOOH shows a superior selectivity towards Pb^(2+)compared with Co^(2+)and Ni^(2+),with a purity of 97%±3%in the *** high selectivity is attributed to the lower activation energy for Pb^(2+)*** capacity retentions at the 5^(th)and the 35^(th)cycles are ca.80%and ca.50%,respectively,comparable to the chemical regeneration *** industrially exhausted granular ferric hydroxide as the electrode material,the system exhibits a Pb^(2+)uptake capacity of 37.4 mg/g with high *** work demonstrates the feasibility of regenerating FeOOH by charge and provides a new approach for recycling and upcycling FeOOH sorbent.

关键词： FeOOH electrochemical regeneration selective separation heavy metal ions

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P2-type layered high-entropy oxides as sodium-ion cathode materials

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Materials Futures 2022年第3期1卷 171-184页

作者： Junbo Wang Sören L Dreyer Kai Wang Ziming Ding Thomas Diemant Guruprakash Karkera Yanjiao Ma Abhishek Sarkar Bei Zhou Mikhail V Gorbunov Ahmad Omar Daria Mikhailova volker presser Maximilian Fichtner Horst Hahn Torsten Brezesinski Ben Breitung Qingsong Wang Institute of Nanotechnology Karlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany Helmholtz Institute Ulm(HIU)Electrochemical Energy Storage Helmholtzstrasse 1189081 UlmGermany Joint Research Laboratory Nanomaterials-Technische Universität Darmstadt and Karlsruhe Institute of Technology(KIT) Otto-Berndt-Strasse 364206 DarmstadtGermany Leibniz Institute for Solid State and Materials Research(IFW)Dresden Helmholtzstrasse 2001069 DresdenGermany INM-Leibniz Institute for New Materials Campus D2266123 SaarbrückenGermany Department for Materials Science and Engineering Saarland UniversityCampus D2266123 SaarbrückenGermany Saarene Saarland Center for Energy Materials and SustainabilityCampus C4266123 SaarbrückenGermany Bavarian Center for Battery Technology(BayBatt) University of BayreuthUniversitätsstrasse 3095447 BayreuthGermany Department of Chemistry University of BayreuthUniversitätsstrasse 3095447 BayreuthGermany

P2-type layered oxides with the general Na-deficient composition Na_(x)TMO_(2)(x<1,TM:transition metal)are a promising class of cathode materials for sodium-ion *** open Na+transport pathways present in the structure lead to low diffusion barriers and enable high charge/discharge ***,a phase transition from P2 to O2 structure occurring above 4.2 V and metal dissolution at low potentials upon discharge results in rapid capacity *** this work,we demonstrate the positive effect of configurational entropy on the stability of the crystal structure during battery *** different compositions of layered P2-type oxides were synthesized by solid-state chemistry,Na_(0.67)(Mn_(0.55)Ni_(0.21)Co_(0.24))O_(2),Na_(0.67)(Mn_(0.45)Ni_(0.18)Co_(0.24)Ti_(0.1)Mg_(0.03))O_(2) and Na_(0.67)(Mn_(0.45)Ni_(0.18)Co_(0.18)Ti_(0.1)Mg_(0.03)Al_(0.04)Fe_(0.02))O_(2) with low,medium and high configurational entropy,*** high-entropy cathode material shows lower structural transformation and Mn dissolution upon cycling in a wide voltage range from 1.5 to 4.6 *** operando techniques and post-mortem analysis were used to probe the underlying reaction mechanism ***,the high-entropy strategy is a promising route for improving the electrochemical performance of P2 layered oxide cathodes for advanced sodium-ion battery applications.

关键词： P2-type layered cathode high-entropy oxides sodium-ion battery gassing behavior manganese leaching

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Understanding the charging of supercapacitors by electrochemical quartz crystal microbalance

Industrial Chemistry & Materials

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Industrial Chemistry & Materials 2023年第2期1卷 175-187页

作者： Liang Niu Long Yang Jingjing Yang Ming Chen Liang Zeng Pan Duan Taizheng Wu Emmanuel Pameté volker presser Guang Feng State Key Laboratory of Coal Combustion School of Energy and Power EngineeringHuazhong University of Science and Technology(HUST)430074 WuhanChina. INM–Leibniz Institute for New Materials Campus D2266123SaarbrückenGermany Saarland University Campus D2266123SaarbrückenGermany Saarene–Saarland Center for Energy Materials and Sustainability Campus C4266123SaarbrückenGermany

Supercapacitors are highly valued energy storage devices with high power density,fast charging ability,and exceptional cycling stability.A profound understanding of their charging mechanisms is crucial for continuous performance *** quartz crystal microbalance(EQCM),a detection means that provides in situ mass change information during charging–discharging processes at the nanogram level,has received greatly significant attention during the past decade due to its high sensitivity,non-destructiveness and low *** being used to track ionic fluxes in porous carbons in 2009,EQCM has played a pivotal role in understanding the charging mechanisms of ***,we review the critical progress of EQCM hitherto,including theory fundamentals and applications in ***,we discuss the fundamental effects of ion desolvation and transport on the performance of *** advantages and defects of applying EQCM in supercapacitors are thoroughly examined,and future directions are proposed.

关键词： EQCM Supercapacitors Charging mechanisms Quantitative characterization.

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Corrigendum to“Three-Dimensional Cobalt Hydroxide Hollow Cube/Vertical Nanosheets with High Desalination Capacity and Long-Term Performance Stability in Capacitive Deionization”

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Research 2021年第1期2021卷 1045-1045页

In the article titled“Three-Dimensional Cobalt Hydroxide Hollow Cube/Vertical Nanosheets with High Desalination Capacity and Long-Term Performance Stability in Capacitive Deionization”[1],there was an error in the *** previously read“Three-Dimensional Cobalt Hydroxide Hollow Cube/Vertical Nanosheets with High Desalinatio Capacity and Long-Term Performance Stability”,which was *** title in the original version has now been updated.

关键词： sheets Cube Vertical

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Sea Urchin Spines as a Model-System for Permeable,Light-Weight Ceramics with Graceful Failure Behavior. Part I. Mechanical Behavior of Sea Urchin Spines under Compression

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Journal of Bionic Engineering 2009年第4期6卷 203-213页

作者： V.presser S.SchultheiB C.Berthold K.GNickel Institute

The spines of pencil and lance urchins Heterocentrotus mammillatus and Phyllacanthus imperialis were studied as a model of light-weight material with high impact *** complex and variable skeleton construction ('stereom') of body and spines of sea urchins consists of highly porous Mg-bearing calcium *** basically brittle material with pronounced single-crystal cleavage does not fracture by spontaneous catastrophic device failure but by graceful failure over the range of tens of millimeter of bulk compression *** was observed in bulk compression tests and blunt indentation experiments on regular,infiltrated and latex coated sea urchin spine *** characterization was carried out using X-ray computer tomography,optical and scanning electron *** behavior is interpreted to result from the hierarchic structure of sea urchin spines from the rnacroscale down to the *** derived from this study see ceramics with layered porosity as a possible biomimetic construction for appropriate applications.

关键词： sea urchin urchin spines biominmitic mechanical behavior compression calcite

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