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d-d Orbital coupling induced by crystal-phase engineering assists acetonitrile electroreduction to ethylamine

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Journal of Energy Chemistry 2024年第2期89卷 216-225,I0006页

作者： honggang Huang Yao chen Hui Fu Cun chen Hanjun Li Zhe Zhang Feili Lai Shuxing Bai Nan Zhang Tianxi Liu Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122JiangsuChina Department of Chemistry KU LeuvenCelestijnenlaan 200FLeuven 3001Belgium College of Chemistry and Chemical Engineering Qingdao UniversityQingdao 266071ShandongChina

The d-d orbital coupling induced by crystal-phase engineering can effectively adjust the electronic structure of electrocatalysts,thus showing significant catalytic performance,while it has been rarely explored in electrochemical acetonitrile reduction reaction(ARR)to ***,we successfully realize the structural transformation of Pd Cu metallic aerogels(MAs)from face-centered cubic(FCC)to body-centered cubic(BCC)through annealing ***,the BCC Pd Cu MAs exhibit excellent ARR performance with high ethylamine selectivity of 90.91%,Faradaic efficiency of 88.60%,yield rate of 316.0 mmol h^(-1)g^(-1)_(Pd+Cu)and long-term stability for consecutive electrolysis within 20 h at-0.55 V *** hydrogen electrode,outperforming than those of FCC Pd Cu *** the membrane electrode assembly system,BCC Pd Cu MAs also demonstrate excellent ethylamine yield rate of 389.5 mmol h^(-1)g^(-1)_(Pd+Cu).Density functional theory calculation reveals that the d-d orbital coupling in BCC Pd Cu MAs results in an evident correlation effect for the interaction of Pd and Cu sites,which boosts up the Cu sites electronic activities to enhance ARR *** work opens a new route to develop efficient ARR electrocatalysts from the perspective of crystalline structure transformation.

关键词： d-d Orbital coupling Crystal-phase engineering Metallic aerogels Acetonitrile electroreduction reaction Ethylamine

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聚乙二醇对碳酸化法白炭黑的表面改性研究

化学反应工程与工艺 2006年第2期22卷 181-184页

作者：何凯陈宏刚太原理工大学化学化工学院山西太原030024 中国石油大学(华东)重质油国家重点实验室山东东营257061

以石灰窑气和水玻璃碳酸化法制备白炭黑为研究体系,用表面活性剂聚乙二醇(PEG)原位有机湿法改性,以提高白炭黑同聚合物胶料的亲和性。在85℃,原料配比(水玻璃与水体积比)1∶5,二氧化碳浓度40%,通气速率60 mL/min和搅拌速率180 r/min的... 详细信息

以石灰窑气和水玻璃碳酸化法制备白炭黑为研究体系,用表面活性剂聚乙二醇(PEG)原位有机湿法改性,以提高白炭黑同聚合物胶料的亲和性。在85℃,原料配比(水玻璃与水体积比)1∶5,二氧化碳浓度40%,通气速率60 mL/min和搅拌速率180 r/min的实验条件下反应2 h,考察了不同相对分子量的PEG对改性后白炭黑产率和性能的影响,改性效果顺序是聚乙二醇PEG(6 000)>PEG(10 000)>PEG(20 000)。还考察了PEG相对添加量对改性后的白炭黑的产率以及性能的影响,PEG(6 000)相对添加量30%较为适宜。

关键词：白炭黑表面改性聚乙二醇

Interface Engineering on Constructing Physical and Chemical Stable Solid-State Electrolyte Toward Practical Lithium Batteries

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Energy & Environmental Materials 2024年第4期7卷 28-47页

作者： honggang He Litong Wang Malek Al-Abbasi Chunyan Cao Heng Li Zhu Xu Shi chen Wei Zhang Ruiqing Li Yuekun Lai Yuxin Tang Mingzheng Ge School of Textile and Clothing Nantong University School of Science Qingdao University of Technology Department of Biomedical Sciences City University of Hong Kong Institute of Applied Physics and Materials Engineering University of Macau College of Chemical Engineering Fuzhou University

Solid-state lithium batteries (SSLBs) with high safety have emerged to meet the increasing energy density demands of electric vehicles,hybrid electric vehicles,and portable electronic ***,the dendrite formation,high interfacial resistance,and deleterious interfacial reactions caused by solid-solid contact between electrode and electrolyte have hindered the commercialization of SSLBs.

关键词： dendrite formation high energy density interface instability interfacial resistance solid-state electrolyte

New molecular design towards high performance single junction organic solar cell

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New molecular design towards high performance single junctio...

Understanding energetic disorder in electron-deficient-core-based non-fullerene solar cells

2019第四届中国能源材料化学研讨会

作者：邹应萍 Jun Yuan honggang chen Qingya Wei Fangfang Cai College of Chemistry and Chemical Engineering Central South University

＜正＞Recently,non-fullerene n-type organic semiconductors （n-OS） have attracted significant attention as acceptors in organic photovoltaics （OPVs） due to their great potential to realize high power conversion efficiencies （PCEs）.In this regard,a rational design of central fused ring unit of the n-OS molecules is crucial to maximize the state-of-the-art PCEs.

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Science China Chemistry 2020年第8期63卷 1159-1168页

作者： Jun Yuan Chujun Zhang honggang chen Can Zhu Sin Hang Cheung Beibei Qiu Fangfang Cai Qingya Wei Wei Liu Hang Yin Rui Zhang Jidong Zhang Ye Liu Huotian Zhang Weifang Liu Hongjian Peng Junliang Yang Lei Meng Feng Gao Shukong So Yongfang Li Yingping Zou College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China Department of Physics and Institute of Advanced Materials Hong Kong Baptist UniversityHong KongChina Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190China Department of Physics Chemistry and Biology(IFM)Linkoping UniversityLinkdping 58183Sweden State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Hunan Key Laboratory for Super-microstructure and Ultrafast Process School of Physics and ElectronicChangsha 410083China

Recent advances in material design for organic solar cells(OSCs)are primarily focused on developing near-infrared nonfullerene acceptors,typically A-DA′D-A type acceptors(where A abbreviates an electron-withdrawing moiety and D,an electron-donor moiety),to achieve high external quantum efficiency while maintaining low voltage ***,the charge transport is still constrained by unfavorable molecular conformations,resulting in high energetic disorder and limiting the device ***,a facile design strategy is reported by introducing the"wing"(alkyl chains)at the terminal of the DA′D central core of the A-DA′D-A type acceptor to achieve a favorable and ordered molecular orientation and therefore facilitate charge carrier *** from the reduced disorder,the electron mobilities could be significantly enhanced for the"wing"-containing *** carefully changing the length of alkyl chains,the mobility of acceptor has been tuned to match with that of donor,leading to a minimized charge imbalance factor and a high fill factor(FF).We further provide useful design strategies for highly efficient OSCs with high FF.

关键词： non-fullerene organic solar cells electron-deficient-core energetic disorder molecular design strategy

Chaetosphaeronema carmichaeli ***.,causing stem spots of Aconitum carmichaeli in China

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Chaetosphaeronema carmichaeli ***.,causing stem spots of Aco...

中国植物病理学会2019年学术年会

作者： Wang Yan Jing Lin Zhu Tiantian Zeng Cuiyun chen honggang Gansu University of Chinese Medicine

A new kind of stem spot disease was detected on the stems of Aconitum carmichaeli（Chinese Wutou） in Gansu Province,China,in 2010.A Chaetosphaeronema-like fungus was isolated and completion of Koch’s postulates confirmed that the fungus was the causal agent of the stem spot *** morphology and molecular methods were combined to identify the *** conidiomata were thickwalled,250-600 μm wide and 150-500 μm *** conidia were 0-1 septate,7.7（-11.4）-19.2μm×2.0（-2.8）×5.1μm.A multi-locus phylogenetic analysis of five loci,LSU,ITS,tefl-a,RPB2 and BTUB demonstrated that this Chaetosphaeronema-like fungus is closely related to *** and ***,on the basis of larger pycnidia with no setae this pathogen is viewed as a new taxon of Chaetosphaeronema.

关键词： Aconitum carmichaeli Pathogen identification Multi-locus phylogeny Taxonomy

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H_2/Ar等离子体射流反应器的模拟

化工学报 2001年第5期52卷 389-395页

作者：谢克昌陈宏刚田亚竣朱素渝一碳化学与化工国家重点实验室太原理工大学煤化工研究所山西太原030024

建立了直流电弧等离子体射流反应器的计算流体动力学模型 ,在模型中同时考虑流动、对流换热和共轭热传导等过程 ,消除了以往对反应器内壁温度估计造成的误差 .对湍流的模拟采用了常见的标准k -ε双方程湍流模型 .

关键词：等离子体模拟计算流体动力学煤裂解乙炔氢气氩气等离子体射流反应器热解

基于超像素的硅基OLED微显示器数字驱动成像质量研究

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光子学报 2023年第9期52卷 178-188页

作者：季渊陈鸿港陈宝良张引许怡晴上海大学微电子研究与开发中心上海200072 上海大学机电工程与自动化学院上海200072

针对微显示器分辨率、刷新率低,显示运动画面时产生动态假轮廓等成像问题,通过分析超像素技术的特性及驱动原理,结合数字驱动方式,提出数字驱动型超像素扫描策略。利用人眼的积分特性和视觉暂留特性,通过帧与帧之间在时间上切换,空间上... 详细信息

针对微显示器分辨率、刷新率低,显示运动画面时产生动态假轮廓等成像问题,通过分析超像素技术的特性及驱动原理,结合数字驱动方式,提出数字驱动型超像素扫描策略。利用人眼的积分特性和视觉暂留特性,通过帧与帧之间在时间上切换,空间上偏移的方式,降低数据传输带宽,改善动态假轮廓现象,提升显示器成像效果。结合超像素技术设计一款数字驱动型超像素微显示控制器,并在分辨率为2048×2048的全彩硅基OLED微显示器上验证其可行性。仿真分析结果表明,基于超像素的数字驱动扫描策略在分辨率主观感知不变的条件下,数据传输带宽减少50%。利用最小可察觉失真积分法进行评估,超像素扫描策略动态假轮廓等于0和不超过8灰度的概率分别约为93.3%和99.3%,成像质量有较大提升。

关键词：超像素硅基OLED微显示器数字驱动动态假轮廓微显示控制器

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基于多协同的即时信息检索框架

现代图书情报技术 2008年第2期 48-52页

作者：陈红刚庄超华中师范大学计算机科学系武汉430079

提出一种协同即时信息检索体系结构的设计框架。首次将双基协同、多代理协同、多向量协同用于即时信息检索。增加缓冲知识库,考虑在代理通信和检索中利用兴趣向量和结果向量,并对进行这种设计框架分析。结论是对查准率有更多的优化。

关键词：即时信息检索代理向量知识发现协同