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Constructing core@shell structured photothermal nanosphere with thin carbon layer confined Co-Mn bimetals for pollutant degradation and solar interfacial water evaporation

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Rare Metals 2024年第4期43卷 1686-1701页

作者： Hong-Yang Zhu Meng-Ting Liu Gang Wang rong-rong Du Hong-Yao Zhao Hao Lu {2.-Qi Yang Sheng Tang Zeng-Jing Guo Jun Yang cheng-Zhang Zhu Fu Yang School of Environmental and chemical engineering Jiangsu University of Science and TechnologyZhenjiang212003China School of chemistry and chemical {2. Liaocheng UniversityLiaocheng252000China School of material Science and engineering Jiangsu University of Science and TechnologyZhenjiang212003China School of Environmental Science and engineering Nanjing Tech UniversityNanjing210009China

Photothermal material applied in environmental governance has attracted growing *** combining the Stober method and dopamine-triggered coating strategy,Co-Mn precursor was in situ incorporated into the poly dopamine(PDA)layer over the surface of silica ***,a unique photothermal nanosphere with SiO_(2.core and thin carbon layer and dual Co-Mn oxides shell was allowed to form by sequential heat treatment in the inert atmosphere(SiO_(2.@CoMn/C).The bimetallic fraction of Co/Mn in the carbon layer and post-treatment calcination temperature was comprehensively tuned to optimize the peroxymonosulfate(PMS)activation performance of the *** state of bimetallic species was studied including their physical distribution,chemical valence,and interplay by various ***,Co oxides appear as dominant monodispersed nanoparticles(~10 nm),while Mn with cluster-like morphology is observed to uniformly distribute over thin-layer carbon and adhered to the surface of SiO_(2.nanospheres(~2.0 nm).The calcined temperature could tune the oxidized state of Co species,leading to the optimization of the catalytic performance of introduced dual metal *** a result,this obtained optimal catalyst integrated the advantages of exposed bimetallic CoMn species and N-doped thin carbon to deliver excellent catalytic PMS activation performance and photothermal synergetic catalytic mineralization ability for diversiform *** reactions condition controls and anion interference studies were conducted to identify the adaptability of the optimal ***,the application of solar-driven interfacial water evaporation using optimal SiO_(2.@Co_3Mn_1/C-600 catalyst was explored,showing a high water evaporation rate of 1.48 kg·m^(-2.·h^(-1)and an efficiency of 95.2.,further revealing a comprehensive governance functionality of obtained material in the complex pollution condition.

关键词： Photothermal Peroxymonosulfate(PMS)activation Bimetallic synergy Water evaporation Advanced oxidation process

直接键连C-X(X=H,C)的核自旋偶合常数的理论研究

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四川大学学报（自然科学版） 2011年第1期48卷 153-158页

作者：黄荣谊叶世勇安徽师范大学化学与材料科学学院芜湖241000 安庆师范学院化学化工学院功能配合物安徽省重点实验室安庆246003

利用建立的PM3级别上的最大重迭对称性分子轨道法和自然杂化轨道方法，计算了系列烃类化合物的杂化轨道和电荷分布，拟合出计算C—H及C—C偶合常数的简单关系式，研究了各种烃类分子中不同的C—H键和C—C键偶合常数，理论计算值和实验... 详细信息

利用建立的PM3级别上的最大重迭对称性分子轨道法和自然杂化轨道方法，计算了系列烃类化合物的杂化轨道和电荷分布，拟合出计算C—H及C—C偶合常数的简单关系式，研究了各种烃类分子中不同的C—H键和C—C键偶合常数，理论计算值和实验数据都较为吻合．进一步验证了直接键连^1JCX（X=C，H）偶合常数主要取决于偶合作用中的Fermi接触相，为从简单价键理论角度解释和计算^1JCH和^1Jcc提供了一种简便直观的方法．计算结果也表明提出的计算方法是可行的．

关键词：核自旋偶合常数最大重迭对称性分子轨道自然杂化轨道

One-step calcination synthesis of interface-coherent crystallized and surface-passivated LiNi_(0.5)Mn_(1.5)O_(4) for high-voltage lithium-ion battery

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Nano Research 2024年第5期17卷 4192-4202页

作者： Min Xu Bifu Sheng Yong cheng Junjie Lu Minfeng Chen Peng Wang Bo Liu Jizhang Chen Xiang Han Ming-Sheng Wang Siqi shi college of materials Science and {2. Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing Forestry UniversityNanjing 210037China State Key Laboratory of Physical chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China college of Mathematics and Physics Jinggangshan UniversityJi’an 343009China School of materials Science and engineering Shanghai UniversityShanghai 200444China Western Digital Corporation 951 Sandisk DrMilpitasCA 95035USA

LiNi_(0.5)Mn_(1.5)O_(4)(LNMO)with a spinel crystal structure presents a compelling avenue towards the development of economic cobalt-free and high voltage(~5 V)lithium-ion ***,the elevated operational voltage of LNMO gives rise to pronounced interfacial interactions between the distorted surface lattices characterized by Jahn-Teller(J-T)distortions and the electrolyte ***,a localized crystallized coherent LaNiO_(3) and surface passivated Li_(3)PO_(4) layer is deposited on LNMO via a one-step calcination *** evidenced by transmission electron microscopy(TEM),time-of-flight secondary ion mass spectrometry(ToF-SIMS)and density functional theory(DFT)calculation,the epitaxial growth of LaNiO_(3) along the LNMO lattice can effectively stabilize the structure and inhibit irreversible phase transitions,and the Li_(3)PO_(4) surface coating can prevent the chemical reaction between HF and transition metals without sacrificing the electrochemical *** addition,the ionic conductive Li_(3)PO_(4) and atomic wetting inter-layer enables fast charge transfer transport ***,the LNMO {2. enabled by the lattice bonding and surface passivating features,demonstrates high performance at high current densities and good capacity retention during long-term *** rational design of interface coherent engineering and surface coating layers of the LNMO cathode {2. offers a new perspective for the practical application of high-voltage lithium-ion batteries.

关键词： high-voltage cathode interface-coherent surface passivating electrochemical performance

Characterization of Yeast Cells as a Microencapsulation wall material by Fourier Transform Infrared Spectroscopy

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Characterization of Yeast Cells as a Microencapsulation wall...

PVA/4-SZ组装式固态相变储能材料的研究

2.08年全国生物化学与分子生物学学术大会

作者： Guo-rong shi~1 Li-qun Rao~2.Jun Zeng~1 Qing-ji Xie~3 Jun Li~1 Ben-xiang Li~1 1 {2. of Science,Hunan Agricultural university.Changsha 41012. 2.{2. of Bioscience and Biotechnology Hunan Agricultural university,Changsha 41012. 3 Key Laboratory of chemical Biology and Traditional Chinese Medicine Research.(Ministry of Education of china),{2. of chemistry and chemical {12.,Hunan Normal university,Changsha 410081

The encapsulation properties and chemically-induced structural changes of yeast cells as a wall material for the microencapsulation of chlorogenic acid(CGA)were investigated by the Fourier transform infrared(FT-IR) spectroscopy and high-performance liquid chromatography(HPLC).Results indicate that the encapsulation performance of *** cells was largely affected by the composition of the culture medium,and the

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太原理工大学学报 2008年第S1期39卷 140-143,146页

作者：刘成岑梁栋邱丰施凯太原理工大学化学化工学院山西太原030024

制备了一种以聚乙烯醇为骨架、4-苯乙烯吡啶以氢键组装式支链的固-固相变储能材料。利用4-苯乙烯吡啶从结晶态到无定型态之间的转变,实现了该材料的储能与释能,整个过程中材料保持固态。叙述了该材料的制备方法,讨论了实验条件对其制备... 详细信息

制备了一种以聚乙烯醇为骨架、4-苯乙烯吡啶以氢键组装式支链的固-固相变储能材料。利用4-苯乙烯吡啶从结晶态到无定型态之间的转变,实现了该材料的储能与释能,整个过程中材料保持固态。叙述了该材料的制备方法,讨论了实验条件对其制备性能的影响并对其进行了结构分析和DSC表征。结果表明,该材料具有较大的相变焓,拥有很好的开发价值和发展前途。

关键词：相变材料聚乙烯醇顺-4-苯乙烯吡啶

钯催化电化学烯丙位4-吡啶化反应中的配体作用研究

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电化学（中英文） 2024年第5期30卷 25-33页

作者：丁伟杰杨春晖冯钟涛陆仕荣程旭台州学院材料科学与工程学院浙江台州318000 南京大学化学化工学院江苏南京210023 新加坡南洋理工化学化工生物技术学院新加坡637371

过渡金属络合物在电化学合成中获得了广泛的应用,其中配体对于络合物在电场中稳定性、催化活性以及选择性的影响还了解有限。4-氰基-吡啶作为一种高效吡啶化试剂,在自由基化学中获得广泛应用。在前期的工作中,我们实现了电化学条件下,... 详细信息

过渡金属络合物在电化学合成中获得了广泛的应用,其中配体对于络合物在电场中稳定性、催化活性以及选择性的影响还了解有限。4-氰基-吡啶作为一种高效吡啶化试剂,在自由基化学中获得广泛应用。在前期的工作中,我们实现了电化学条件下,手性双膦配体钯络合物催化4-氰基-吡啶与烯丙基醋酸酯反应,构建了多种手性烯丙基吡啶化合物。我们发现双膦配体对反应有着关键的作用,决定着反应的活性、区域选择性和对映选择性。在本工作中,我们系统性地研究了多种双膦配体钯金属络合物,在烯丙基醋酸酯与氰基吡啶的电化学还原偶联过程中的性质。通过控制实验,电化学分析以及理论计算等方法,我们揭示了双膦配体对于络合物稳定性及反应区域选择性的影响。进而,我们发现在电场条件下存在一个非稳定价态的过渡金属络合物。这个非稳定价态的过渡金属络合物中,双膦配体可以将电荷和自旋密度分散于整个络合物之中,而不是局限于金属离子之上。这样,络合物既可以作为电子转移催化剂,也可以作为过渡金属催化剂,同时控制整个电子转移过程以及成键过程。我们认为这种配体与金属在电场条件下的非稳定价态络合物,展现了电化学条件下过渡金属催化的独特能力,这有助于发展未来的新型的电化学催化体系。同时,我们还发现锌电极至关重要,其不仅可以活化4-氰基吡啶,还可以淬灭氰根离子,展现出Lewis酸性金属离子的特殊用途。

关键词：电化学钯催化膦配体吡啶化烯丙基

The Nano Research Young Innovators Awards in bio-inspired nanomaterials

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Nano Research 2024年第2期17卷 417-425页

作者： Jun Chen Shuotao Wang Department of Bioengineering University of CaliforniaLos AngelesLos AngelesCA 90095USA Key Laboratory of Bio-inspired materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China

Nano Research Young Innovators(NR45)Awards are designed to acknowledge and celebrate the achievements of young researchers under 45 years of *** individuals have made significant contributions to the field of nanoscience and *** the inaugural NR45 Awards in 2.18,the journal's editorial board has recognized over a hundred innovators specializing in nanobiotechnology,nano energy,two-dimensional materials,and *** focus of the 2.2. NR45 Awards is on bioinspired nanomaterials,acknowledging thirty-three outstanding young innovators for their extraordinary contributions in developing these materials with applications spanning clean energy,human healthcare,monitoring,and disease treatments,as shown in *** extend our heartfelt congratulations to all the 33 NR45 Awardees in 2.2.!

关键词： journal materials contributions

Positive direction of polarization-induced electric field improves formic acid electrooxidation on Pd

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Nano Research 2023年第8期16卷 10848-10856页

作者： Shuozhen Hu Yunyun cheng Guoming Luo Kai Huang cheng {2. Jie Xu cheng Lian {2.gang Sun Xinsheng Zhang State Key Laboratory of chemical engineering East China University of Science and TechnologyShanghai 200237China Shanghai Hydrogen Propulsion technology Co. Ltd.Shanghai 201800China Shanghai Haizhiqing Energy Development Co. Ltd.Shanghai 200333China Key Laboratory of Advanced Civil engineering materials of Ministry of Education Functional Materials Research LaboratorySchool of Materials Science and EngineeringTongji UniversityShanghai 201804China School of materials Science and engineering Anhui University of TechnologyMa’anshan 243002China State Key Laboratory of Physical chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

Adjusting the adsorption energy of adsorbates on catalyst can directly regulate the catalytic performance and reaction pathways of heterogeneous ***,we report a novel strategy,introducing polarization-induced electric field(PIEF)with different directions,to manipulate the adsorption energy of intermediates and reaction pathway of formic acid electrooxidation on *** nanoparticles are applied as the PIEF provider,of which the direction is successfully controlled via aligning the dipoles in tourmaline in a strong external electric *** and theoretical results systematically reveal that positive PIEF leads to an electron-deficient state of Pd,reduced adsorption energy of COad,enhanced adsorption energy of*HCOOH and*OH,and promoted formate pathway of formic acid ***/TNP+/FTO,with the aid of positive PIEF,shows three-fold enhancement in the formic acid electrooxidation(4.74 mA·cm^(−2.)with high durability and anti-poisoning ability compared with pristine *** study leads a new route to design formic acid electrocatalysts and provides an understanding on how to control the adsorption energy of adsorbates on electrocatalysts by an internal electric field.

关键词： dipole-aligned tourmaline ferroelectric material polarization-induced electric field direction palladium adsorption energy formic acid oxidation mechanism

The application of metal-organic frameworks in electrocatalytic nitrogen reduction

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Chinese chemical Letters 2020年第7期31卷 1768-1772页

作者： Yihang Wang Qiang Li Wei shi Peng cheng Key Laboratory of Advanced Energy materials chemistry(MOE)and Collaborative Innovation Center of {2. Science and engineering(Tianjin) College of ChemistryNankai UniversityTianjin 300071China

In recent years,the research of nitrogen reduction reaction(NRR)under ambient conditions has attracted wide attention for their relatively low energy consumption,in which rational design of electrocatalysts is the key to achieve high-performance ***-organic frameworks(MOFs),as a new kind of porous material,have been intensively studied in the past few decades owing to not only their structural versatility and tunability but also intrinsic *** to their structural features,MOFs also have potential applications in mild condition electrocatalysis of *** this review,the recently experimental and theoretical studies of MOFs in NRR electrocatalysts are briefly summarized.

关键词： Nitrogen reduction reaction Metal-organic frameworks Electrocatalysis Nanomaterials