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Synergistic promotion strategy of “dual-site” and “dual-path” to enhance the C–C coupling between CO2 and HCHO driven by photoelectrocatalysis

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Journal of Energy Chemistry 2025年第1期100卷 39-49页

作者： Hongqiang yang Jianfeng Zheng Guoyu Wang Yifei Gao Yatao yang Jia Li Xiaojin Han Yan Cui Zhanggen Huang National Key Laboratory of High Efficiency and Low Carbon Utilization of Coal Institute of Coal Chemistry Chinese Academy of Science University of Chinese Academy of Science Shenyang University of Chemical Technology

Photoelectrocatalytic coupling CO2and volatile organic compounds （VOCs） is a promising green strategy for the synergistic conversion of the two carbon-containing resources to *** catalytic efficiency is always at the mercy of chemical inertness of CO2and the competitive hydrogen evolution of ***,a modified g-C3N4/ZnAl-LDH Z-scheme heterojunction catalyst with dual reaction site was rationally designed and precisely *** Faraday efficiency of ethanol reached 68.67%with a corresponding formation rate of 227.3μmol *** revealed by in-situ characterizations and density functional theory calculations,CO2and HCHO were absorbed at Zn site and N site,***,*CO generated from CO2and HCHO was converted to*CH3O and*CHO on the dual-active-site *** detailed reaction mechanism experiments indicated that C–C coupling only occurred between*CO and*CH3O in electrocatalysis *** from the“*CO+*CH3O”path,another“*CO+*CHO”coupling path was also detected in photoelectrocatalytic *** selectivity of ethanol was significantly enhanced due to the synthesis of dual-site catalyst and the dual-path coupling path between CO2and HCHO simultaneously driven by light and electricity.

关键词： Photoelectrocatalysis Z-scheme C–C coupling Ethanol

中药消毒剂应用于口腔硅橡胶印模消毒的可行性分析

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中华中医药学刊 2017年第3期35卷 645-647页

作者：刘凤英杨凯成赵建广刘珊珊段艳浩陈彦平河北医科大学第四医院口腔科河北石家庄050011

目的:通过观察不同浓度中药消毒剂对口腔硅橡胶印模消毒效果及材料精确度影响,探讨中药消毒剂应用于口腔硅橡胶印模消毒的可行性。方法:选取以ADA(美国牙科协会)推荐的标准模具制成的口腔印模200个,依据印模材料不同分为100个加成型,10... 详细信息

目的:通过观察不同浓度中药消毒剂对口腔硅橡胶印模消毒效果及材料精确度影响,探讨中药消毒剂应用于口腔硅橡胶印模消毒的可行性。方法:选取以ADA(美国牙科协会)推荐的标准模具制成的口腔印模200个,依据印模材料不同分为100个加成型,100个缩合型,每种印模根据使用消毒剂情况随机分为五组:对照组,中药高、中、低剂量组(体积分数分别为10、5、2.5%),戊二醛组(2%)),各组根据试验菌株分为金黄色葡萄球菌和白色念珠菌组,计算抑菌率,测量各组印模浸泡前后尺寸稳定性及表面粗糙度。结果:不同印模材料加成型或缩合型在浸泡前后各组尺寸变化及粗糙度比较差异均无统计学意义(P>0.05),对金黄色葡萄球菌和白色念珠菌抑菌率比较:中药高剂量组>中剂量组>戊二醛组>低剂量组,组间比较有统计学差异(P0.05)。结论:中药消毒剂浸泡口腔硅橡胶印模消毒不影响印模精确度,不同浓度中药消毒剂均可用于口腔硅橡胶印模消毒,可优先考虑采用5%中药消毒剂浸泡消毒30min。

关键词：中药消毒剂口腔硅橡胶印模消毒精确度

Metal nanoparticles decorated CoFe-(oxy)hydroxysulfides nanosheets fabricated by a general strategy for electrocatalytic water splitting

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Journal of Energy Chemistry 2025年第1期100卷 26-38页

作者： Xiaodong yang Haochen Shen Xiaoming Xiao Zhichao Li Qi Zhou Wei yang Bin Jiang Yongli Sun Luhong Zhang Zhenhua Yan School of Chemical Engineering and Technology Tianjin University Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University

This study presents a novel method to fabricate metal-decorated,sulfur-doped layered double hydroxides （M/SLDH） through spontaneous redox and sulfurization *** developed Ag/SLDH and Pt/SLDH catalysts with abundant heterogeneous interfaces and hierarchical nanostructures demonstrated outstanding oxygen evolution reaction （OER） and hydrogen evolution reaction （HER） performance,achieving low overpotentials of 212 and 35 mV at 10 mA cm-2in 1 M KOH,*** both anode and cathode in water splitting,they required only 1.47 V to reach 10 mA cm-2and exhibited high structural robustness,maintaining stability at 1000 mA cm-2for 300 ***-situ Raman analysis revealed that the synergistic effects of metal nanoparticles and S doping significantly promote the transformation into the S-Co1-xFexOOH layer,which serves as the active phase for water ***,ultraviolet photoelectron spectroscopy （UPS） and density functional theory （DFT） analyses indicated that incorporating metal nanoparticles and S doping increase electron density near the Fermi level and reduce reaction energy barriers,thus enhancing intrinsic OER and HER *** study provides a scalable strategy for synthesizing high-performance electrocatalysts for water splitting,with promising potential for broader applications.

关键词： LDH Spontaneous reaction Metal nanoparticles Water splitting

Multi boron-doping effects in hard carbon toward enhanced sodium ion storage

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Journal of Energy Chemistry 2025年第1期100卷 730-738页

作者： Peng Zheng Wang Zhou Ying Mo Biao Zheng Miaomiao Han Qin Zhong Wenwen yang Peng Gao Lezhi yang Jilei Liu College of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Greater Bay Area Institute for Innovation Hunan University Changsha Research Institute of Mining & Metallurgy Co. LTD.

Hard carbon （HC） has been considered as promising anode material for sodium-ion batteries （SIBs）.The optimization of hard carbon’s microstructure and solid electrolyte interface （SEI） property are demonstrated effective in enhancing the Na+storage capability,however,a one-step regulation strategy to achieve simultaneous multi-scale structures optimization is highly ***,we have systematically investigated the effects of boron doping on hard carbon’s microstructure and interface chemistry.A variety of structure characterizations show that appropriate amount of boron doping can increase the size of closed pores via rearrangement of carbon layers with improved graphitization degree,which provides more Na+storage ***-situ Fourier transform infrared spectroscopy/electrochemical impedance spectroscopy （FTIR/EIS） and X-ray photoelectron spectroscopy （XPS） analysis demonstrate the presence of more BC3and less B–C–O structures that result in enhanced ion diffusion kinetics and the formation of inorganic rich and robust SEI,which leads to facilitated charge transfer and excellent rate *** a result,the hard carbon anode with optimized boron doping content exhibits enhanced rate and cycling *** general,this work unravels the critical role of boron doping in optimizing the pore structure,interface chemistry and diffusion kinetics of hard carbon,which enables rational design of sodium-ion battery anode with enhanced Na+storage performance.

关键词： X ray photoelectron spectroscopy

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修剪强度对马尾松成年种子园母树的影响

福建林业科技 2017年第1期44卷 38-42页

作者：陈虎张明慧卢开成欧军杨章旗广西壮族自治区林业科学研究院国家马尾松工程技术研究中心广西马尾松工程技术研究中心广西南宁530002 广西国有派阳山林场广西宁明532500

以16年生的马尾松嫁接种子园成年母树为研究对象,采用保留不同轮枝数(A:保留第1轮枝;B:保留2轮枝;C:保留3轮枝;D:保留4轮枝;以不做修剪作为对照(CK))的修剪方式开展母树矮化试验,观测其对母树生长和开花的影响。结果表明:保留轮枝数越... 详细信息

以16年生的马尾松嫁接种子园成年母树为研究对象,采用保留不同轮枝数(A:保留第1轮枝;B:保留2轮枝;C:保留3轮枝;D:保留4轮枝;以不做修剪作为对照(CK))的修剪方式开展母树矮化试验,观测其对母树生长和开花的影响。结果表明:保留轮枝数越少越能改善母树光照条件,有效降低母树主干高度,增强母树抽稍能力,增加雌配子体数量,方便管理。不同处理后除雄配子体数量低于对照,其它指标均优于对照,以处理A的效果最佳。

关键词：马尾松种子园轮枝数矮化开花

中药消毒剂对口腔硅橡胶印模的消毒效能及材料表面特性的影响

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辽宁中医杂志 2016年第6期43卷 1208-1211页

作者：刘凤英陈彦平赵建广邢亚威刘珊珊段艳浩杨凯成河北医科大学第四医院口腔科河北石家庄050011 河北医科大学第四医院感染内科河北石家庄050011

目的:探讨中药消毒剂对口腔硅橡胶印模的消毒效能及材料表面特性的影响。方法:以美国牙科协会(American Dental Association,ADA)推荐的标准模具制成120个口腔印模,按照印模材料分为加成型60个,缩合型60个;每种印模随机分为两组,分别感... 详细信息

目的:探讨中药消毒剂对口腔硅橡胶印模的消毒效能及材料表面特性的影响。方法:以美国牙科协会(American Dental Association,ADA)推荐的标准模具制成120个口腔印模,按照印模材料分为加成型60个,缩合型60个;每种印模随机分为两组,分别感染金黄色葡萄球菌和白色念珠菌,再将每组染菌印模再随机分为对照组10个、戊二醛组10个和中药组10个,测量各组印模浸泡前后尺寸稳定性、浸泡后表面粗糙度,并计算戊二醛组与中药组的抑菌率。结果:无论加成型硅橡胶还是缩合型硅橡胶,3组印模浸泡前后尺寸变化比较差异无统计学意义(P>0.05),3组印模表面粗糙度比较差异均无统计学意义(P>0.05)。加成型和缩合型印模中,中药组对金黄色葡萄球菌、白色念珠菌抑菌率均显著高于戊二醛组,组间比较差异具有统计学意义(P<0.05)。结论:中药消毒剂浸泡口腔硅橡胶印模消毒不会改变印模的精度和表面质量,且其杀菌效果优于戊二醛,可以作为口腔印模消毒剂的选择之一。

关键词：中药消毒剂硅橡胶印模杀菌表面粗糙度

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颏下岛状肌皮瓣血管的解剖与超声评价

现代口腔医学杂志 2021年第1期35卷 1-4页

作者：杨凯成崔子峰赵建广郭钰杨英来陈彦平河北医科大学第四医院口腔科石家庄050011 威县人民医院口腔科

目的探讨应用彩色多普勒超声检测颏下岛状肌皮瓣(submental musculocutaneous island flap),SMIF血管的显示价值,为SMIF的临床应用提供影像学信息。方法选取拟行SMIF移植的患者35例,术前应用彩色多普勒超声测量双侧颏下动脉起始处距离... 详细信息

目的探讨应用彩色多普勒超声检测颏下岛状肌皮瓣(submental musculocutaneous island flap),SMIF血管的显示价值,为SMIF的临床应用提供影像学信息。方法选取拟行SMIF移植的患者35例,术前应用彩色多普勒超声测量双侧颏下动脉起始处距离下颌骨下缘、下颌角及颏中点的距离;在超声下探测血管走行,同时行面前静脉、颌外动脉体表标记,并与术中所见血管解剖情况进行对比。结果 35例患者术前超声检测与术中所见符合率为100%;经超声探测出面前静脉的6种走行方式,颌外动脉的4种走行方式;测得左侧颏下动脉起始处距离下颌骨下缘的距离为(0.53±0.09)cm,距离下颌角的距离为(1.82±0.33)cm,距离颏中点的距离为(6.08±0.52)cm;右侧颏下动脉起始处距离下颌骨下缘的距离为(0.52±0.09)cm,距离下颌角的距离为(1.75±0.29)cm,距离颏中点的距离为(6.12±0.63)cm。结论彩色多普勒超声可以直观地显示SMIF血管的走行、分布及变异情况,从而为SMIF的制备提供影像学依据。

关键词：颏下岛状肌皮瓣彩色多普勒超声血管走行

Microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1C-5Mnmedium manganese steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： Mei Zhang Wenhao Li yangfei Chen yang Jiang Xiaofei Guo Han Dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： Mingming Zhang Hanyu Wu Qi Chen Jiaxin yang Bonan Liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model