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| 1 | Stability improvement of the Nieuwland catalyst in the dimerization of acetylene to monovinylacetylene显示文摘In the process of dimerization of acetylene to produce monovinylacetylene (MVA),the loss of active component CuCl in the Nieuwland catalyst due to the formation of a dark red precipitate was investigated.The formula of the precipitate was CuCl·2C2H2·1/5NH 3,and it was presumed to be formed by the combination of NH 3,C2H2 and [Cu]-acetylene π-complex,which was an intermediate in the dimerization reaction.The addition of hydrochloric acid into the catalyst can reduce the formation of precipitate,whereas excessive H+ is unfavorable to the dimerization reaction of acetylene.To balance between high acetylene conversion and low loss rate of CuCl,the optimum mass percentage of HCl in the added hydrochloric acid was determined.The result showed the optimum mass percentage of HCl decreased from 5.0% to 3.2% when the space velocity of acetylene was from 140 h-1 to 360 h-1.The result in this work also indicated the pH of the Nieuwland catalyst should be kept in the range of 5.80-5.97 during the reaction process,which was good for both catalyst life and acetylene conversion. | Jianguo Liu Yizan Zuo Minghan Han Zhanwen Wang Dezheng Wang | 2012 | Journal of Natural Gas Chemistry2012，21，5： | 8 |
| 2 | Recent advances in spinel-type electrocatalysts for bifunctional oxygen reduction and oxygen evolution reactions显示文摘The demand for efficient and environmentally-benign electrocatalysts that help availably harness the renewable energy resources is growing rapidly. In recent years, increasing insights into the design of water electrolysers, fuel cells, and metal–air batteries emerge in response to the need for developing sustainable energy carriers, in which the oxygen evolution reaction and the oxygen reduction reaction play key roles. However, both reactions suffer from sluggish kinetics that restricts the reactivity. Therefore, it is vital to probe into the structure of the catalysts to exploit high-performance bifunctional oxygen electrocatalysts. Spinel-type catalysts are a class of materials with advantages of versatility, low toxicity, low expense, high abundance, flexible ion arrangement, and multivalence structure. In this review, we afford a basic overview of spinel-type materials and then introduce the relevant theoretical principles for electrocatalytic activity, following that we shed light on the structure–property relationship strategies for spinel-type catalysts including electronic structure, microstructure, phase and composition regulation,and coupling with electrically conductive supports. We elaborate the relationship between structure and property, in order to provide some insights into the design of spinel-type bifunctional oxygen electrocatalysts. | Xiao-Meng Liu Xiaoyang Cui Kamran Dastafkan Hao-Fan Wang Cheng Tang Chuan Zhao Aibing Chen Chuanxin He Minghan Han Qiang Zhang | 2021 | Journal of Energy Chemistry2021，30，2： | 7 |
| 3 | Effect of solvent on catalytic performance of anhydrous catalyst in acetylene dimerization to monovinylacetylene显示文摘The production of monovinylacetylene (MVA) through Cu(Ⅰ)-catalyzed acetylene dimerization reaction was performed in different reaction media. Based on the analyses of crystals precipitated from the catalyst solution and UV-Vis spectra of the catalysts, the reaction mechanism and solvent dependence were studied. The highest yield of MVA can be obtained when dimethylformamide is used as solvent because of its strong coordination ability to Cu(Ⅰ). The activation of C≡C bond is presumed to be improved when the catalytic metal ion is coordinated by a solvent with less steric hindrance and electron-rich coordination atom. The results of the present study provide a possible way to accelerate the metal-catalyzed homogeneous reaction of alkyne substrates through careful selection of a solvent. | Jianguo Liu Minghan Han Zhanwen Wang | 2013 | Journal of Energy Chemistry2013，22，4： | 6 |
| 4 | Preparation of biodiesel from waste oils catalyzed by a Br6nsted acidic ionic liquid显示文摘 | Han Minghan Yi Wulang Wu Qin | 2009 | BioresourceTechnology2009，100，： | 1 |
| 5 | Preparation of biodiesel from waste oils catalyzed by a bronsted acidic ionic liquid显示文摘 | Han Minghan Yi Wulang Wu Qin | 2009 | Bioresource Technology2009，100，7： | 1 |
| 6 | Alkylation of Benzene with 1--Dodecene in Ionic Liquids ^+ Al2Cl6X-(R= butyl, octyl and dodecyl; X=chlorine, bromine and iodine)显示文摘 | XIN Hongliang WU Qin HAN Minghan | 2005 | Appl Catal A2005，292，： | 1 |
| 7 | Intrinsic kinetics of the alkylation of benzene with propylene over β zeolite catalyst显示文摘 | HAN Minghan LI Xiaojin LIN Shixiong | 2001 | Kinetics and Catalysis2001，42，4： | 1 |
| 8 | Studies on the catalytic performance of the Neuwland catalyst and anhydrous catalyst in the dimerization of acetylene to monovinylacetylene显示文摘 | Liu Jianguo Han Minghan Wang Zhanwen | 2012 | Advanced Materials Research2012，550，3： | 1 |
| 9 | Studies on the catalytic performance of the Neuwland catalyst and anhydrous catalyst in the dimerization of acetylene to monovinylacetylene显示文摘 | Liu Jianguo Han Minghan Wang Zhanwen | 2012 | Advanced Materials Research2012，550，3： | 1 |
| 10 | Preparation of biodiesel from waste oils catalyzed by a Brbnsted acidic ionic liquid 显示文摘 | HAN Minghan YI Wulang WU Qin | 2009 | Bioresour Technol2009，100，： | 1 |
| 11 | Influence of the gas distributor on the local hydrodynamic behavior of an external loop airlift reactor显示文摘 | Lin Jing Han Minghan Wang Tiefeng | 2004 | Chemical Engineering Journal2004，102，1： | 1 |
| 12 | Preparation of biodiesel from waste oils catalyzed by a Br(0)nsted ionic liquid显示文摘 | Han Minghan Yi Wulang Wu Qin | 2009 | Bioresource Technology2009，100，7： | 1 |
| 13 | Improvement of anhydrous catalyst stability in acetylene dimerization by regulating acidity显示文摘 | Jianguo Liu Yizan Zuo Minghan Han Zhanwen Wang | 2012 | Biotechnol2012，，3： | 1 |
| 14 | Pressure drop for two phase counter current flow in a packed col- umn with a novel internal 显示文摘 | Han Minghan Lin Hongfei Yuan Yanhui | 2003 | Chemical Engineering Jour- nal2003，94，3： | 1 |
| 15 | Preparation of biodiesel from waste oils catalyzed by a Bronsted acidic ionic liquid显示文摘 | HAN Minghan YI Wulang | 2009 | Bioresource Technology2009，100，7： | 1 |
| 16 | A new panel containing specific spermatogenesis markers to identify spermatogenic cells in nonobstructive azoospermia patients显示文摘Infertility is a severe problem that affects 10%-15% of couples worldwide, among which male infertility is a factor in ~50% of the cases [1]. Azoospermia, which is defined as the absence of sperm in at least two ejaculates, can be divided into two types: obstructive azoospermia (OA) and non-OA (NOA)[1]. OA patients have normal spermatogenesis and mature sperm in testes and can father a biological child through testicular sperm retrieval and intracytoplasmic sperm injection (ICSI)[2]. By contrast, NOA patients usually have various degrees of spermatogenesis impairment and can be faced with complicated assisted reproductive technology (ART) strategies to father a biological child [2]. The precise diagnosis of spermatogenesis in NOA patients is crucial for clinical decision making regarding ART. | Xinxi Zhao Yiqin Wang Meng Ma Wei Zhang Jiqiang Si Wei Wang Zhen Lin Gang Han Charlie Degui Chen Minghan Tong Yanping Kuang Qifeng Lyu | 2019 | Acta Biochimica et Biophysica Sinica2019，51，6： | 1 |
| 17 | Pressure drop for two phase counter current flow in a packed col- umn with a novel internal显示文摘 | Han Minghan Lin Hongfei Yuan Yanhui | 2003 | Chemical Engineering Jour- nal2003，94，3： | 1 |
| 18 | Intrinsic kinetics of the alkylation of benzene with propylele over β zeolite catalyst 显示文摘 | HAN Minghan LI Xiaojin LIN Shixiong | 2001 | Kinetics and Catalysis2001，42，4： | 1 |
| 19 | Preparation of biodiesel from waste oils catalyzed by a Bronsted acidic ionic liquid 显示文摘 | Minghan Han Wulang Yi | 2009 | 213 (100) :2308 Bioresource 2310 Technology2009，，： | 1 |
| 20 | A Survey of Federated Learning on Non-IID Data显示文摘Federated learning(FL) is a machine learning paradigm for data silos and privacy protection,which aims to organize multiple clients for training global machine learning models without exposing data to all parties.However,when dealing with non-independently identically distributed(non-ⅡD) client data,FL cannot obtain more satisfactory results than centrally trained machine learning and even fails to match the accuracy of the local model obtained by client training alone.To analyze and address the above issues,we survey the state-of-theart methods in the literature related to FL on non-ⅡD data.On this basis,a motivation-based taxonomy,which classifies these methods into two categories,including heterogeneity reducing strategies and adaptability enhancing strategies,is proposed.Moreover,the core ideas and main challenges of these methods are analyzed.Finally,we envision several promising research directions that have not been thoroughly studied,in hope of promoting research in related fields to a certain extent. | HAN Xuming GAO Minghan WANG Limin HE Zaobo WANG Yanze | 2022 | ZTE Communications2022，20，3： | 0 |
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