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| 1 | A Co-N/C hollow-sphere electrocatalyst derived from a metanilic CoAl layered double hydroxide for the oxygen reduction reaction, and its active sites in various pH media显示文摘Transition-metal-coordinating 做氮的碳催化剂(M-N/C, M = 公司, Fe, Mn, Ni,等等) 为氧减小反应(ORR ) 被认为最有希望的 nonprecious 金属 electrocatalysts 之一。然而,他们受不了低 ORR 催化活动,和他们的活跃地点充分没被识别。此处,我们由在煤分层的双氢氧化物的层之间的 metanilic 阴离子的碳化报导多孔的 Co-N/C 空范围的 electrocatalyst 的合成。同样准备的 Co-N/C 催化剂展出了优秀 ORR 有在碱、中立的溶液的一个高一半波浪潜力和大散开有限水流的催化活动。催化剂的表演比得上商业 Pt/C electrocatalysts 的那些。通过调查面具离子的效果(在 Co-N/C 催化剂的 ORR 活动的 SCN 和 F ),并且在不同 pH 媒介在反对 x 地点的破坏前后比较 ORR 活动,我们断定反对 x 地点在酸、中立的答案直接充当 ORR 活跃地点,但是处于碱的条件在 ORR 活动有可以忽略的效果。 | Jun Wang Liqun Li Xu Chen Yanluo Lu Wensheng Yang Xue Duan | 2017 | Nano Research2017，10，7： | 3 |
| 2 | Selective formation of luminescent chiral cocrystal:Molecular self-assembly of 2,20-binaphthol and 2-(3-pyridyl)-1H-benzimidazole显示文摘Luminescent cocrystals have been received much attention in fluorescence imaging and sensor application. In this work, we report that the high-quality chiral luminescent cocrystal can be obtained through a molecular self-assembly process of 2,20-binaphthol and 2-(3-pyridyl)-1 H-benzimidazole. The assembly modes and stacking fashions of as-obtained cocrystal were determined by single crystal X-ray diffractometer. The structure and optical properties of the cocrystals were characterized by fluorescence emission, fluorescence decay, Raman and circular dichroism spectra. The results show that both the pristine co-assembled units(R-BINOL and S-BINOL) give rise to the R conformation within the final cocrystal, suggesting that the formation of cocrystal can be an effective way to achieve R/S-isomeric transformation of 2,20-binaphthol. It is also expected that the co-crystallization approach has much flexibility and potential applications for the design and selective formation of chiral luminescent materials. | Yanluo Lu Yanqun Tang Heyang Lin Xiaoyu Fang Bo Lu Dan Li Dongpeng Yan | 2018 | Chinese Chemical Letters2018，29，10： | 1 |
| 3 | Synthesis of layered cathode materials Li[Co_x Ni_y Mn_(1-x-y)]O_2 from layered double hydroxide precursors显示文摘Cathode materials Li[Co x Ni y Mn 1-x-y ]O 2 for lithium secondary batteries have been prepared by a new route using layered double hydroxides (LDHs) as a precursor. The resulting layered phase with the - NaFeO 2 structure crystallizes in the rhombohedral system, with space group R-3m having an interlayer spacing close to 0.47 nm. X-ray photoelectron spectroscopy (XPS) was used to measure the oxidation states of Co, Ni and Mn. The effects of varying the Co/Ni/Mn ratio on both the structure and electrochemical properties of Li[Co x Ni y Mn 1-x-y ]O 2 have been investigated by X-ray diffraction and electrochemical tests. The products demonstrated a rather stable cycling behavior, with a reversible capacity of 118 mAh/g for the layered material with Co/Ni/Mn = 1/1/1. | Yanluo Lu Yang Zhao | 2010 | Particuology2010，8，3： | 0 |
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