4篇
您的检索式：作者名="KANG Qiankun"
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| 1 | Nitrogen doped tin oxide nanostructured catalysts for selective electrochemical reduction of carbon dioxide to formate显示文摘Tin/tin oxide materials are key electrocatalysts for selective conversion of CO_2 to formate/formic acid.Herein we report a tin oxide material with nitrogen doping by using ammonia treatment at elevated temperature. The N doped material demonstrated enhanced electrocatalytic CO_2 reduction activity, showing high Faradaic efficiency(90%) for formate at -0.65 V vs. RHE with partial current density of 4 mA/cm^2.The catalysis was contributed to increased electron negativity of N atom compared to O atom. Additionally, the N-doped catalyst demonstrates sulfur tolerance with retained formate selectivity. The analysis after electrolysis shows that the catalyst structure partially converts to metallic Sn, and thus the combined Sn/N-SnO_2 is the key for the active CO_2 catalysis. | Qiankun Li Zhuo Wang Miao Zhang Pengfei Hou Peng Kang | 2017 | Journal of Energy Chemistry2017，26，5： | 3 |
| 2 | Identification model of geochemical anomaly based on isolation forest algorithm显示文摘The methods for geochemical anomaly detection are usually based on statistical models, and it needs to assume that the sample population satisfies a specific distribution, which may reduce the performance of geochemical anomaly detection. In this paper, the isolation forest model is used to detect geochemical anomalies and it does not require geochemical data to satisfy a particular distribution. By constructing a tree to traverse the average path length of all data, anomaly scores are used to characterize the anomaly and background fields, and the optimal threshold is selected to identify geochemical anomalies. Taking 1∶200 000 geochemical exploration data of Fusong area in Jilin Province, NE China as an example, Fe2O3 and Pb were selected as the indicator elements to identify geochemical anomalies, and the results were compared with traditional statistical methods. The results show that the isolation forest model can effectively identify univariate geochemical anomalies, and the identified anomalies results have significant spatial correlation with known mine locations. Moreover, it can identify both high value anomalies and weak anomalies. | SHANG Yinmin LU Laijun KANG Qiankun | 2019 | Global Geology2019，22，3： | 1 |
| 3 | In vitro myogenic and adipogenic differentiation model of genetically engineered bovine embryonic fibroblast cell lines显示文摘 | Jinlong Yin Xun Jin Samuel Beck Dong Ho Kang Zhongshan Hong Zhehu Li Yongcheng Jin Qiankun Zhang Yun-Jaie Choi Sung-Chan Kim Hyunggee Kim | 2010 | Biotechnology Letters2010，，2： | 1 |
| 4 | A Simple Method to Measure the Contact Angle of Metal Droplets on Graphite显示文摘The determination of solid–liquid interfacial tension plays an important role in science and technology.Here,we propose a simple method to directly measure the contact angle between metal droplets and a graphite substrate for the determination of metal–graphite interfacial tension.The proposed method involves the synthesis of micro-and nanosized metal droplets on graphite by arc melting.Owing to its small volume,the rapid cooling of the prepared metal droplets on the graphite substrate leads to the freezing of equilibrium contact confguration after solidifcation.We observe that the measured contact angle between micro-and nanosized Au(or Ag)particles and the graphite substrate is almost size independent,even though the size of the particles synthesized herein is 1–3 orders of magnitude smaller than that studied in previous works.In addition,the interfacial tensions of Au and Ag on the step edges(edge plane)of graphite are found to be larger than that on the(0001)plane(basal plane).The proposed method provides a simple approach to determine the solid–liquid interfacial tension and may be efective in the study of interface related science and technology. | Bozhao Wu Yongping Kang Cai Lu Langquan Shui Wengen Ouyang Qi Peng Qiankun He Ze Liu | 2023 | Nanomanufacturing and Metrology2023，6，4： | 0 |
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