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Journal of Energy Chemistry 2022年第4期31卷 184-192页

作者： Xue Ye Junguo Ma Wenguang Yu Xiaoli Pan Chongya Yang Chang Wang qinggang liu Yanqiang Huang CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China China University of Chinese Academy of Science Beijing 100049China Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China

Green and economical CO_(2)utilization is significant for CO_(2)emission reduction and energy ***,the 1D Mo_(2)C nanowires with dominant(101)crystal surfaces were modified by the deposition of atomic functional components Rh and *** unmodifiedβMo_(2)C could only convert CO_(2)to methanol,the designed catalyst of K_(0.2)Rh_(0.2)/β-Mo_(2)C exhibited up to 72.1%of ethanol selectivity at 150℃.It was observed that the atomically dispersed Rh could form the bifunctional active centres with the active carrierβMo_(2)C with the synergistic effects to achieve highly specific controlled C–C *** promoting the CO_(2)adsorption and activation,the introduction of an alkali metal(K)mainly regulated the balanced performance of the two active centres,which in turn improved the hydrogenation ***,the controlled modification ofβMo_(2)C provides a new design strategy for the highly efficient,lowtemperature hydrogenation of CO_(2)to ethanol with single-atom catalysts,which provides an excellent example for the rational design of the complex catalysts.

关键词： CO_(2)hydrogenation C–C coupling Single-atom catalyst Ethanol synthesis

Tuning the coordination environment of single-atom catalyst M-N-C towards selective hydrogenation of functionalized nitroarenes

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Nano Research 2022年第1期15卷 519-527页

作者： Dan Zhou Leilei Zhang Xiaoyan liu Haifeng Qi qinggang liu Ji Yang Yang Su Jingyuan Ma Jianzhong Yin Aiqin Wang School of Chemical Engineering State Key Laboratory of Fine ChemicalsDalian University of TechnologyDalian 116024China CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Shanghai Synchrotron Radiation Facility Zhangjiang Laboratory(SSRFZJLab)Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China

Fine-tuning of the coordination environment of single-atom catalysts(SACs)is effective to optimize their catalytic performances,yet it remains challenging due to the vulnerability of ***,we report a new approach to engineering the coordination environment of M-N-C(M=Fe,Co,and Ni)SACs by using glutamic acid as the N/C source and pyrolysis atmosphere as a *** with that in N2,NH3 was able to promote the doping of N at 7<700℃yet etch the N-species at higher temperatures,by which the M-N coordination number(CN)and the electronic structure were delicately *** was found that the electron density of Ni single atoms increased with the decrease of Ni-N *** a consequence,the capability of Ni-N-C to dissociate H2 was greatly enhanced and a higher catalytic activity in chemoselective hydrogenation of functionalized nitroarenes was ***,this modulation method could be applied to other transition metals including Fe and *** particular,the as-synthesized Co-N-C SAC afforded a turnover frequency of 152.3 h~1 with 99%selectivity to 3-vinylaniline in the hydrogenation of 3-nitrostyrene,which was the highest ever reported thus far and was at least one order of magnitude more active than state-of-the-art noble-metal-free M-N-C catalysts,demonstrating the great potential of engineering the coordination environment of SACs.

关键词： single-atom catalysts coordination environment Ni-N-C chemoselective hydrogenation pyrolysis atmosphere

Regeneration of copper catalysts mediated by molybdenum-based oxides

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Journal of Energy Chemistry 2024年第8期95卷 618-625,I0013页

作者： Changyu Ding Xiaoli Pan Isla E.Gow Xia Wu Hongchen Cao Zhounan Yu Xiaoyan liu Xiaofeng Yang qinggang liu Yanqiang Huang CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Cardiff Catalysis Institute School of ChemistryTranslational Research HubCardiff UniversityCardiff CF244HQUnited Kingdom College of Chemistry Chemical Engineering and Resource UtilizationNortheast Forestry UniversityHarbin 150040HeilongjiangChina

Cu catalysts,known for their unparalleled catalytic capabilities due to their unique electronic structure,have faced inherent challenges in maintaining long-term effectiveness under harsh hydrogenation ***,we demonstrate a molybdenum-mediated redispersion behavior of Cu under hightemperature oxidation *** oxidized Cu nanoparticles with rich metal-support interfaces tend to dissolve into the MoO_(3)support upon heating to 600℃,which facilitates the subsequent regeneration in a reducing atmosphere.A similar redispersion phenomenon is observed for Cu nanoparticles supported on Zn O-modified MoO_(3).The modification of ZnO significantly improves the performance of the Cu catalyst for CO_(2)hydrogenation to methanol,with the high activity being well maintained after four repeated oxidation-reduction *** situ spectroscopic and theoretical analyses suggest that the interaction involved in the formation of the copper molybdate-like compound is the driving force for the redispersion of *** method is applicable to various Mo-based oxide supports,offering a practical strategy for the regeneration of sintered Cu particles in hydrogenation applications.

关键词： Cu-based catalysts Aggregation Regeneration Oxidation CO_(2)hydrogenation

Rational design and precise manipulation of nano‐catalysts

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Chinese Journal of Catalysis 2022年第4期43卷 898-912页

作者： qinggang liu Junguo Ma Chen Chen Department of Chemistry Tsinghua UniversityBeijing 100084China

Nano‐catalysis plays a vital role in the chemical transformations and significantly impacts the booming modern chemical *** rapid technological enhancements have resulted in serious energy and environmental issues,which are currently spurring the exploration of the novel nano‐catalysts in diverse *** order to develop the efficient nano‐catalysts,it is essential to understand their fundamental physicochemical properties,including the coordination structures of the active centers and substrate‐adsorbate ***,the nano‐catalyst design with precise manipulation at the atomic level can be *** this account,we have summarized our extensive investigation of the factors impacting nano‐catalysis,along with the synthetic strategies developed to prepare the nano‐catalysts for applications in electrocatalysis,photocatalysis and ***,a brief conclusion and future research directions on nano‐catalysis have also been presented.

关键词： Nano‐catalysis Single‐atom catalysts Water splitting Oxygen reduction reaction CO_(2)reduction reaction Silane oxidation Benzene oxidation N‐formylation

Synthesis of Subnanometer-Sized Gold Clusters by a Simple Milling- Mediated Solid Reduction Method

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Chinese Journal of Chemistry 2018年第4期36卷 329-332页

作者： qinggang liu Xinkui Wang Yujing Ren Xiaofeng Yang Zhilian Wu Xiaoyan liu Lin Li Shu Miao Yang Su Yanqin Li Changhai Liang Yanqiang Huang State Key Laboratory of Fine Chemicals School of Chemistry Dalian Uni- versity of Technology Dalian Liaoning 216024 China Dalian Institute of-Chemical Physics Collaborative Innovation Center ofChemistry for Energy Materials Chinese Academy of Sciences DalianLiaoning 116023 China

An effective solvent-free method based on a solid-reduction process was developed to fabricate ultrafine gold catalysts. By this method we revealed a strong size-dependent activity of Au species in which subnanometer-sized clusters exhibited the best activity in the hydrogenation of CO_2 to formate, with a turnover number of up to 9278 over 7 h at 90 ℃.

关键词： solid reduction subnanometer-sized clusters gold catalysts CO_2 hydrogenation

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表面活性剂对PCMX抑菌效果影响研究

日用化学工业（中英文） 2024年第10期54卷 1211-1217页

作者：刘庆刚广州立白企业集团有限公司广东广州510370

研究了3种表面活性剂(SDS、AES和AEO9)对抑菌剂对氯间二甲苯酚(PCMX)的增溶作用及其复配体系对金黄色葡萄球、大肠杆菌和绿脓杆菌的抑菌效果。结果表明,表面活性剂与PCMX的结合系数受表面活性剂的浓度影响的大小顺序为:AEO9>AES>SDS。... 详细信息

研究了3种表面活性剂(SDS、AES和AEO9)对抑菌剂对氯间二甲苯酚(PCMX)的增溶作用及其复配体系对金黄色葡萄球、大肠杆菌和绿脓杆菌的抑菌效果。结果表明,表面活性剂与PCMX的结合系数受表面活性剂的浓度影响的大小顺序为:AEO9>AES>SDS。通过最小抑菌浓度(MIC)测试考察了表面活性剂对PCMX抑菌效果的影响。当SDS的浓度在临界胶束浓度(cmc)以下时,复配体系中PCMX的MIC维持不变,当SDS浓度进一步增加会引起MIC线性增加。当AES的浓度在cmc以下时,复配体系中PCMX的MIC随AES浓度增加略有降低,在cmc以上AES浓度进一步增加会引起MIC线性增加。当AEO9浓度在1.61 mmol/L及以下时,AEO9浓度增加导致复配体系对金黄色葡萄球菌、大肠杆菌和绿脓杆菌的MIC降低。发现在AEO9的cmc以上存在一段浓度区间,复配体系的抗菌效能随着AEO9浓度增加而提升。

关键词：对氯间二甲苯酚表面活性剂临界胶束浓度最小抑菌浓度结合系数

Measurement on transmittance uniformity and angle dependence of automatic welding filter(AWF)

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Measurement on transmittance uniformity and angle dependence...

作者： liu qinggang SHI Wenze ZHUANG Yihuan GUO Dehua State Key Laboratory of Precision Measurement Technology and Instruments Tianjin University China National Institute of Standardization

In order to realize the measurement of transmittance uniformity and angle dependence to detect the personal protection quality parameters of AWF,an innovative AWF measuring instrument including scanning controller based on 4-dimensional motion platform,which can realize the measurement of the above two indexes,are trial produced and tested according to the requirements in the national standard of *** experiment results of transmittance uniformity and angle dependent of AWF achieved by this instrument have good consistency with the data provided by the *** shows that the measurement system has achieved high accuracy and stability in accordance with the national standard of China,and can test and analyze the related parameters of popular types of AWF according to the requirements in the national standard of China.

关键词： automatic welding filter(AWF) transmittance uniformity angle dependence 4-D automatic scanning platform AWF parameter measuring equipment test and analysis

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关于离子渗氮炉高效节能问题的探讨

金属热处理 2013年第12期38卷 127-130页

作者：刘坤吉王锡林刘庆刚大连黄河热处理有限公司辽宁大连116021

离子渗氮和氮碳共渗的工业化生产是近几十年来开发的新技术。由于离子渗氮可以对工程用钢表层强化，形成高硬度致密渗层，耐磨性提高1～5倍；还因为渗氮温度低于相变温度，热畸变量微小，精度高，更适用于高精设备零件的表层强化。特别... 详细信息

离子渗氮和氮碳共渗的工业化生产是近几十年来开发的新技术。由于离子渗氮可以对工程用钢表层强化，形成高硬度致密渗层，耐磨性提高1～5倍；还因为渗氮温度低于相变温度，热畸变量微小，精度高，更适用于高精设备零件的表层强化。特别是相继开发的离子氮碳共渗工艺，进一步改善了渗层质量并节省了能耗。影响离子渗氮的工艺因素比较多，如：

关键词：离子渗氮炉节能问题离子氮碳共渗渗层质量工艺因素工业化生产相变温度渗氮温度