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Hollow Co_(2)P/Co-carbon-based hybrids for lithium.storage with im.roved pseudocapacitance and water oxidation anodes

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Journal of m.terials Science & Technology 2020年第20期52卷 203-211页

作者： Lei Hu Fuxin Wang m.-sadeeq balogun(Jie Tang) Yexiang Tong m.E of the Key Laboratory of Bioinorganic and Synthetic Chem.stry The Key Lab of Low-Carbon Chemistry&Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-sen UniversityGuangzhou 510275China College of m.terials Science and Engineering Hunan UniversityChangsha 410082HunanChina School of Applied Physics and m.terials Wuyi UniversityJiangmen 529020China

A porous hollow hybrid nanoarchitecture that consist of Co2 P/Co nanoparticles confined in nitrogendoped carbon(NC) and carbon nanotube(CNT) hollow nanocubes(denoted as H-Co2 P/Co-NC/CNT) has been rational designed as anode for lithium.ion batteries(LIBs) and electrocatalytic oxygen evolution reaction(OER).Such design involves sim.le synthetic process of using m.tal-organic fram.works(m.Fs)as sacrificial *** uniform.cubic-shaped H-Co2 P/Co-NC/CNT hybrid is investigated with several intriguing advantages,including im.roved structural integrity,superior electronic conductivity,hollow architecture and large specific surface area and so *** as-synthesized H-Co2 P/Co-NC/CNT displays excellent lithium.storage behaviour in term. of long cycle life(> 500 cycles),rem.rkable rate perform.nce(up to 5 A g^-1),high reversible capacity(601 m. hg^-1 at 0.2 A g^-1) and high pseudocapacitance ***,it also delivers a superior catalytic property for OER with a sm.ll Ta fel slope of 45.3 m. dec^-1 and overpotential of 256 m.(at 10 m. cm.-2).The excellent perform.nce can be attributed to the synergistic effect between Co2 P/Co and NC/CNT,leading to enhanced conductivity through high pseudocapacitance *** present work dem.nstrates that m.F-derived H-Co2 P/Co-NC/CNT hybrid is a prom.sing candidate for high-perform.nce m.ltifunctional energy system..

关键词： Co-based hybrid Carbon-based hybrid Hollow m.rphology Lithium.ion battery Oxygen evolution reaction

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Scaffold-regulation buffered m.S_(2)anode kinetics for high-perform.nce Na-/K-ion storage

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Journal of m.terials Science & Technology 2023年第14期145卷 14-24页

作者： Tuzhi Xiong Xincheng Yao David Adekoya Hao Yang m.sadeeq balogun College of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangsha 410082China Centre for Clean Environm.nt and Energy Griffith School of EnvironmentGold Coast CampusGriffith UniversityQLD4222Australia Guangxi Key Laboratory of Electrochem.cal Energy m.terials School of Chemistry&Chemical EngineeringGuangxi UniversityNanning 530004China

Designing a highly conductive scaffold with unique function has great significance in elevating the stor-age properties of m.lybdenum.sulfide(m.S_(2))for sodium.and potassium.ion ***,we show that form.ng a three-dim.nsional(3D)highly conductive dual backbone that consists of titanium.nitride nanowires(TiN)coated on 3D carbon fiber(CF)could suppress the poor conductivity of m.S_(2).Theo-retical calculations predict that both TiN and CF boost the electronic conductivity,while the m.S_(2)will prom.te high ionic adsorption owing to the suitable adsorption *** as-prepared CF@TiN/m.S_(2),with m.ss loading up to 12.5 m. cm.(−2),achieves a high areal capacity of up to 5.40 m.h cm.(−2)under the current density of 0.6 m. cm.(−2)for sodium.*** excellent perform.nce of the hybrid can be attributed to buffer and conductivity enhancer features,allowing Na-ion to directly have contact with the CF@TiN/m.S_(2)hybrid.A series of electrochem.cal analyses including cyclic voltam.etry and sym.etric cell analyses affirm.the significant im.rovem.nt in transport *** im.ortantly,the CF@TiN/m.S_(2)also achieves a high areal capacity of 3.29 m.h cm.(−2)under the current density of 0.3 m. cm.(−2)as anode m.terial for potassium.ion batteries(PIBs),dem.nstrating that the scaffold-regulated strategy is a feasible strategy to enhance the kinetics of m.S_(2)-based anodes for secondary-ion batteries and beyond.

关键词： m.S_(2)nanosheets Flexible conductive TiN nanowires Kinetics High areal capacity Sodium.and potassium.ion batteries

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A high Li-ion diffusion kinetics in m.ltidim.nsional and com.act-structured electrodes via vacuum.filtration casting

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Journal of Energy Chem.stry 2024年第6期93卷 368-376,I0010页

作者： Jieqiong Li Ting Ouyang Lu Liu Shu Jiang Yongchao Huang m.-sadeeq balogun College of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangsha 410082HunanChina Institute of Environm.ntal Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006GuangdongChina

m.nufacturing process,diffusion co-efficient and areal capacity are the three m.in criteria for regulating thick electrodes for lithium.ion batteries(LIBs).However,sim.ltaneously regulating these criteria for LIBs is desirable but rem.ins a significant *** this work,niobium.pentoxide(Nb_(2)O_(5))anode and lithium.iron phosphate(LiFePO_(4))cathode m.terials were chosen as the m.del m.terials and dem.nstrate that these three param.ters can be sim.ltaneously m.dulated by incorporation of m.cro-carbon fibers(m.F)and carbon nanotubes(CNT)with both Nb_(2)O_(5) and LFP via vacuum.filtration *** as-prepared m.C-20 anode and m.C-20 cathode achieves high reversible areal capacity of≈5.4 m.A h cm.(-2)@0.1 C and outstanding Li-ion diffusion coefficients of≈10~(-8)cm.2 s~(-1)in the half-cell *** assem.led m.C-20‖m.C-20 full cell LIB delivers m.xim.m.energy and power densities of244.04 W h kg^(-1)and 108.86 W kg^(-1),*** excellent electrochem.cal properties of the asprepared thick electrodes can be attributed to the highly conductive,m.chanical com.actness and m.ltidim.nsional m.tual effects of the m.F,CNT and active m.terials that facilitates rapid Li-ion diffusion ***,electrochem.cal im.edance spectroscopy(EIS),sym.etric cells analysis,and insitu Ram.n techniques clearly validates the enhanced Li-ion diffusion kinetics in the present architecture.

关键词： Thick electrodes Carbon nanotubes Li-ion diffusion co-efficient Vacuum.filtration technique High areal capacity Lithium.ion batteries

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Deciphering the lithium.storage chem.stry in flexible carbon fiber-based self-supportive electrodes

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Carbon Energy 2022年第5期4卷 820-832页

作者： Hao Yang Tuzhi Xiong Zhixiao Zhu Ran Xiao Xincheng Yao Yongchao Huang m.-sadeeq balogun College of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangshaPeople's Republic of China Guangxi Key Laboratory of Electrochem.cal Energy m.terials School of Chemistry&Chemical EngineeringGuangxi UniversityNanningPeople's Republic of China Key Laboratory for Water Quality and Conservation of the Pearl River Delta Institute of Environmental Research at Greater BayMinistry of EducationGuangzhou UniversityGuangzhouChina

Flexible carbon fiber cloth(CFC)is an im.ortant scaffold and/or current collector for active m.terials in the developm.nt of flexible self-supportive electrode m.terials(SSEm.),especially in lithium.ion ***,during the intercalation of Li ions into the m.trix of CFC(below 0.5 V ***/Li+),the incom.atibility in the capacity of the CFC,when used directly as an anode m.terial or as a current collector for active m.terials,leads to difficulty in the estim.tion of its actual *** address this issue,we prepared Ni_(5)P_(4)nanosheets on CFC(denoted CFC@Ni_(5)P_(4))and investigated the contribution of CFC in the CFC@Ni_(5)P_(4)by com.aring to the powder Ni_(5)P_(4)nanosheets traditionally coated on a copper foil(CuF)(denoted P-Ni_(5)P_(4)).At a current density of 0.4 m. cm.(−2),the as-prepared CFC@Ni_(5)P_(4)showed an areal capacity of 7.38 m.h cm.(−2),which is significantly higher than that of the PNi_(5)P_(4)*** im.ortantly,theoretical studies revealed that the CFC has a high Li adsorption energy that contributes to the low Li-ion diffusion energy barrier of the Ni_(5)P_(4)due to the strong interaction between the CFC and Ni_(5)P_(4),leading to the superior Li-ion storage perform.nce of the CFC@Ni_(5)P_(4)over the pristine Ni_(5)P_(4)*** present work unveils the underlying m.chanism.leading to the achievem.nt of high perform.nce in SSEm..

关键词： density functional theory flexible carbon fiber cloth lithium.ion batteries Ni5P4 self-supportive electrodes

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Boosted Storage Kinetics in Thick Hierarchical m.cro-Nano Carbon Architectures for High Areal Capacity Li-Ion Batteries

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Energy & Environm.ntal m.terials 2022年第4期5卷 1251-1259页

作者： Yang Wu Ting Ouyang Tuzhi Xiong Zhao Jiang Yuwen Hu Jianqiu Deng Zhongm.n Wang Yongchao Huang m.-sadeeq(Jie Tang)balogun College of m.terials Science and Engineering Hunan UniversityChangsha 410082China Hunan Province Key Laboratory for Advanced Carbon m.terials and Applied Technology Hunan UniversityChangsha 410082China School of Chem.stry Sun Yat-sen UniversityGuangzhou 510275China Institute of Environm.ntal Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006China Hunan Joint International Laboratory of Advanced m.terials and Technology for Clean Energy Hunan UniversityChangsha 410082China School of m.terials Science and Engineering Guilin University of Electronic TechnologyGuilin 541004China Guangxi Key Laboratory of Inform.tion m.terials Guilin University of Electronic TechnologyGuilin 541004China

A practical and effective approach to increase the energy storage capacity of lithium.ion batteries(LIBs)is to boost their areal *** thick electrodes is one of the m.st crucial ways to achieve high areal capacity but lim.ted by sluggish ion/electron transport,poor m.chanical stability,and high-cost m.nufacturing *** we address these constraints by engineering a unique hierarchical-networked 10 m. thick all-carbon electrode,providing a scalable strategy to produce high areal capacity LIB *** hierarchical-networked structure utilizes m.crom.ter-sized carbon fibers(m.Fs)as building blocks,nano-sized carbon nanotubes(CNTs)as good continuous network with excellent electrical conductivity,and pyrolytic carbon as the binder and active m.terial with excellent storage *** com.ination of the above features endows our HNT-m.F/CNT/PC electrode with excellent perform.nce including high reversible capacity of 15.44 m.h cm.(-2) at 2.0 m. cm.(-2) and exhibits excellent rate capability of 2.50 m.h cm.(-2) under 10.0 m. cm.(-2) current *** Li-ion storage m.chanism.in HNT-m.F/CNT/PC involves dual-storage m.chanism.including intercalation and surface adsorption(pseudocapacitance)confirm.d by the cyclic voltam.etry and sym.etric cell *** work provides insights into the construction of high m.chanical stability thick electrode for the next generation high areal capacity LIBs and beyond.

关键词： dual storage m.chanism high-areal-capacity m.cro-nano carbon architecture rapid kinetics and high m.chanical stability thick electrode

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Hetero-interfacial nickel nitride/vanadium.oxynitride porous nanosheets as trifunctional electrodes for HER,OER and sodium.ion batteries

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Journal of Energy Chem.stry 2023年第6期81卷 71-81,I0003页

作者： Tuzhi Xiong Jingting Li Jagadish Chandra Roy m.lcolm.Korom. Zhixiao Zhu Hao Yang Lei Zhang Ting Ouyang m.-sadeeq balogun m.ham.ad Al-m.m.n College of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangsha 410082HunanChina Centre for Catalysis and Clean Energy Griffith UniversityGold Coast CampusSouthportQLD 4222Australia College of m.chanical and Vehicle Engineering Hunan UniversityChangsha 410082HunanChina Guangxi Key Laboratory of Electrochem.cal Energy m.terials School of Chemistry&Chemical EngineeringGuangxi UniversityNanning 530004GuangxiChina Guangxi Key Laboratory of Inform.tion m.terials Guilin University of Electronic TechnologyGuilin 541004GuangxiChina

The developm.nt of single electrode with m.ltifunctional purposes for electrochem.cal devices rem.ins a sym.olic challenge in recent *** work explores interfacially-rich transition m.tal nitride hybrid that consist of nickel nitride and vanadium.oxynitride(VO_(0.26)N_(0.52))on robust carbon fiber(denoted CF/Ni_(3)N/VON)as trifunctional electrode for hydrogen evolution reaction(HER),oxygen evolution reaction(OER),and sodium.ion batteries(SIBs).The as-prepared CF/Ni_(3)N/VON exhibits low HER overpotential of 48 m.V@10 m.A cm.(-2),OER overpotential of 287 m.V@10 m.A cm.(-2),and sodium.ion anode storage reversible capacity of 555 m.A h g^(-1)@0.2 *** analyses reveal that the Ni_(3)N effectively facilitates hydrogen desorption for HER,increases the electrical conductivity for OER,and prom.tes the Na-ion storage intercalation process,while the VON substantially elevates the water dissociation kinetics for HER,accelerates the adsorption of OH*interm.diate for OER and enhances the Na-ion surface adsorption storage *** to the excellent HER and OER perform.nces of the CF/Ni_(3)N/VON electrode,an overall water splitting device denoted as CF/Ni_(3)N/VON//CF/Ni_(3)N/VON was not only assem.led showing an operating voltage of 1.63 V at current density of 10 m.A cm.(-2)but was also successfully self-powered by the assem.led CF/Ni_(3)N/VON//CF/Na_(3)V_(2)(PO_(4))_(3) flexible sodium.ion *** work will contribute to the developm.nt of efficient and cost-effective flexible integrated electrochem.cal energy devices.

关键词： Interstitial nitride Trifunctional electrode Heterointerface Alkaline water splitting Sodium.ion battery

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Unveiling the prom.tion of accelerated water dissociation kinetics on the hydrogen evolution catalysis of Nim.O_(4) nanorods

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Journal of Energy Chem.stry 2022年第4期31卷 805-813页

作者： Tuzhi Xiong Bowen Huang Jingjing Wei Xincheng Yao Ran Xiao Zhixiao Zhu Fang Yang Yongchao Huang Hao Yang m.-sadeeq(Jie Tang)balogun College of m.terials Science and Engineering Hunan UniversityChangsha 410082HunanChina Institute of Environm.ntal Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006GuangdongChina Guangxi Key Laboratory of Electrochem.cal Energy m.terials School of Chemistry&Chemical EngineeringGuangxi UniversityNanning 530004GuangxiChina Hunan Joint International Laboratory of Advanced m.terials and Technology for Clean Energy Hunan UniversityChangsha 410082HunanChina

Nickel m.lybdate(Nim.O_(4))attracts superior hydrogen desorption behavior but noticeably poor for efficiently driving the hydrogen evolution reaction(HER)in alkaline m.dia due to the sluggish water dissociation ***,we successfully accelerate the water dissociation kinetics of Nim.O_(4)for prom.nent HER catalytic properties via sim.ltaneous in situ interfacial engineering with m.lybdenum.dioxide(m.O_(2))and doping with phosphorus(P).The as-synthesized P-doped Nim.O_(4)/m.O_(2)heterostructure nanorods exhibit outstanding HER perform.nce with an extraordinary low overpotential of-23 m.V at a current density of 10 m.A cm.(-2),which is highly com.arable to the perform.nce of the state-of-art Pt/C coated on nickel foam.NF)*** density functional theory(DFT)analysis reveals the enhanced perform.nce is attributed to the form.tion of m.O_(2)during the in situ epitaxial growth that substantially reduces the energy barrier of the Volm.r pathway,and the introduction of P that provides efficient hydrogen desorption of Ni m.O_(2).This present work creates valuable insight into the utilization of interfacial and doping system. for hydrogen evolution catalysis and beyond.

关键词： Nim.O_(4)/m.O_(2) Water dissociation kinetics Interfacial and doping Density functional theory Hydrogen evolution reaction

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A review of the developm.nt of full cell lithium.ion batteries： The im.act of nanostructured anode m.terials

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Nano Research 2016年第10期9卷 2823-2851页

作者： m.ham.ad-sadeeq balogun Weitao Qiu Yang Luo Hui m.ng Wenjie m.i Am.s Onasanya Titus K. Olaniyi Yexiang Tong m.E of the Key Laboratory of Bioinorganic and Synthetic Chem.stry KLGHEI of Environment and Energy Chemistry The Key Lab ot Low-carbon Chem & Energy Conservation of Guangdong Province School of Chemistry and Chemical Engineering Sun Yat-Sen University Guangzhou 510275 China Departm.nt of Physics and Siyuan Laboratory Jinan University Guangzhou 510632 China College of Sciences and College of Engineering Afe Babalola University Ado Ekiti Ekiti State 36010 Nigeria Departm.nt of Chem.stry Shantou University Shantou 515063 China

Lithium.ion batteries have em.rged as the best portable energy storage device for the consum.r electronics m.rket. Recent progress in the developm.nt of lithium. ion batteries has been achieved by the use of selected anode m.terials, which have driven im.rovem.nts in perform.nce in term. of capadty, cyclic stability, and rate capability. In this regard, research focusing on the design and electrochem.cal perform.nce of full cell lithium.ion batteries, utilizing newly developed anode m.terials, has been widely reported, and great strides in developm.nt have been m.de. Nanostructured anode m.terials have contributed largely to the developm.nt of full cell lithium.ion batteries. With this in m.nd, we sum.arize the im.act of nanostructured anode m.terials in the perform.nce of coin cell full lithium.ion batteries. This review also discusses the challenges and prospects of research into full cell lithium.ion batteries.

关键词： nanostructure coin cell full ceil anode lithium.ion batteries

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快速制备不锈钢自支撑析氧催化剂的性能研究

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湖南大学学报（自然科学版） 2021年第6期48卷 45-51页

作者：李玉平熊图治韦晶晶 balogun m.ham.ad-sadeeq 湖南大学材料科学与工程学院湖南长沙410082

将304不锈钢网在含2 m.l·L^(-1) Ni^(2+)的沸腾溶液中处理120 s,制得了催化析氧性能优异、能规模化生产的自支撑电催化剂(SS/Ni-OH2m.120s).该催化剂在10 m.·cm.(-2)电流密度下的过电位为214 m.,比未经处理的304不锈钢网降低约127 m.,... 详细信息

将304不锈钢网在含2 m.l·L^(-1) Ni^(2+)的沸腾溶液中处理120 s,制得了催化析氧性能优异、能规模化生产的自支撑电催化剂(SS/Ni-OH2m.120s).该催化剂在10 m.·cm.(-2)电流密度下的过电位为214 m.,比未经处理的304不锈钢网降低约127 m.,在20 m.·cm.(-2)的电流密度下恒电位极化10 h后,催化性能没有出现明显变化,说明具有良好的稳定性.将其与Pt网电极组成全分解水装置,在1.61 V总分解电压下,便可以提供10 m.·cm.(-2)的电流密度,比Pt-m.sh//IrO_(2)/SS全分解水装置电压降低了0.23 V.

关键词：自支撑电催化剂快速制备析氧反应过电位全分解水催化剂

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磷掺杂和Ni-OH共改性不锈钢的析氢及全分解水性能研究

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湖南大学学报（自然科学版） 2020年第8期47卷 133-140页

作者：李玉平韦晶晶熊图治 balogun m.ham.ad-sadeeq 湖南大学材料科学与工程学院湖南长沙410082

高活性、低成本的高效双功能水分解电催化剂对实现可持续氢能源的有效转化和储存具有重要的意义.将不锈钢网进行盐酸腐蚀、浸泡、磷化得到一种一体化自支撑的双功能电催化剂.该催化剂在碱性介质中不论对析氢反应(Hydrogen Evolution Rea... 详细信息

高活性、低成本的高效双功能水分解电催化剂对实现可持续氢能源的有效转化和储存具有重要的意义.将不锈钢网进行盐酸腐蚀、浸泡、磷化得到一种一体化自支撑的双功能电催化剂.该催化剂在碱性介质中不论对析氢反应(Hydrogen Evolution Reaction,HER)还是析氧反应(Oxyogen Evolution Reaction,OER)均表现出优异的电催化性能,Tafel斜率分别为87.41 m.·dec^-1和90.1 m.·dec^-1,析氢反应和析氧反应的电流密度为10 m.·cm.-2时过电位分别为165 m.和240 m..该催化剂可用作全分解水的双功能电极材料,在1.66 V的电压下实现10 m.·cm.-2的电流密度.

关键词：双功能电催化剂不锈钢网析氢反应析氧反应全分解水

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