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| 1 | Fe2N nanoparticles boosting FeNx moieties for highly efficient oxygen reduction reaction in Fe-N-C porous catalyst显示文摘Replacing Pt-based electrocatalysts for the oxygen reduction reaction (ORR) with high performance and low-cost non-precious metal catalysts is crucial for the commercialization of fuel cells.Herein,we present a highly efficient Fe-N-C porous ORR electrocatalyst with FeNx moieties promoted by Fe2N nanoparticles derived from Fe-doped zeolitic imidazolate framework.The best-performing Fe-N-C/HPC-NH3 catalyst exhibits a superior ORR activity with an onset (E0) and half-wave (E1/2) potential of 0.945 and 0.803 V (RHE),respectively,which is comparable to those of the commercial Pt/C in acidic media.Probing and acid-leaching experiments prove that FeNx moieties play an important role in the ORR and the Fe2N can further improve the ORR activity.Density functional theory calculation reveals a synergistic effect that the existence of Fe2N weakens the adsorption of ORR intermediates on active sites and lowers the reaction free energy of the potential limiting step,thus facilitating the ORR.Both experimental evidence and theoretical analysis for the enhancement of ORR activity by Fe2N decoration in Fe-N-C catalyst might inspire a new strategy for rational design of high performance non-precious metal catalysts. | Xiao Liu Hong Liu Chi Chen Liangliang Zou Yuan Li Qing Zhang Bo Yang Zhiqing Zou Hui Yang | 2019 | Nano Research2019，12，7： | 14 |
| 2 | Conversion of PtNi alloy from disordered to ordered for enhanced activity and durability in methanol-tolerant oxygen reduction reactions显示文摘划算的氧减小反应(ORR ) 的发展有高甲醇忍耐和提高的耐久性的催化剂为直接甲醇燃料房间是高度合乎需要的。这个工作从混乱稳固的溶液集中于 PtNi nanoparticles 的变换到订的金属间化合的混合物。这里,在 ORR 活动,耐久性,和甲醇忍耐的这变换的效果被描绘。X 光检查衍射和传播电子显微镜学结果与高分散和大约 7.6 nm 的一种吝啬的粒子尺寸证实订的 PtNi 金属间化合的 nanoparticles 的形成。展出的 PtNi 金属间化合的 nanoparticles 在纯、包含甲醇的电解质向甲醇容忍的 ORR 提高了集体、特定的活动。在 PtNi 金属间化合的 nanoparticles 上的 0.85 V 的 ORR 的特定的活动比在商业 Pt/C 和比在混乱 PtNi 合金上大的 3 次上大几乎 6 倍。在 5,000 潜力骑车以后,耐久性测试为 PtNi 金属间化合的 nanoparticles 显示了 ORR 活动的最小的损失,而 ORR 活动为混乱 PtNi 合金在 28% 减少了。提高的 methanoltolerant ORR 活动和耐久性可以被归因于相对混乱 PtNi 合金的稳定性比较的订的 PtNi 金属间化合的 nanoparticles 的结构、组合的稳定性,强烈建议 PtNi 金属间化合的 nanoparticles 可以为实际应用用作高度活跃、持久的甲醇容忍的 ORR electrocatalysts。 | Liangliang Zou Jing Fan Yi Zhou Congmin Wang Jun Li Zhiqing Zou Hui Yang | 2015 | Nano Research2015，8，8： | 6 |
| 3 | A facile preparation of carbon-supported Pd nanoparticles for electrocatalytic oxidation of formic acid 显示文摘 | Yu Zhu Yongyin Kang Zhiqing Zou | 2008 | Electrochem Commun2008，10，5： | 1 |
| 4 | New anodic diffusive layer for passive micro-direct methanol fuel cell 显示文摘 | Yuan Ting Zou Zhiqing Chen Mei | 2009 | Journal of Power Sources2009，192，2： | 1 |
| 5 | A Novel Nanocomposite Particle of Hydroxyapatite and Silk Fibroin: Biomimetic Synthesis and Its Biocompatibility显示文摘 | Zhiqing Rui Zou Qida Liu Quanli Li Xinmin Chen Chen | 2010 | Journal of Nanomaterials2010，10，： | 1 |
| 6 | Perilipin 2 and lipid droplets provide reciprocal stabilization显示文摘The lipid droplet (LD)-associated protein adipose differentiation-related protein (ADRP or PLIN2) is required for the formation and stability of the LD organelle, whereas its biological roles are still obscure. Herein, we show that PLIN2 is the most abundant protein on the lipid droplets (LDs) of mouse myoblast cell line C2C12. Both the expression of PLIN2 and the accumulation of LDs were up-regulated in a time- and dose-dependent manner when the cells were treated with oleate (OA). The protein level of PLIN2 was positively correlated with the formation of LDs, suggesting that LDs stabilize PLIN2. Furthermore, knocking out PLIN2 in C2C12 cells led to enlarged LDs and higher triacylglycerol hydrolysis activity. The isolated PLIN2 null LDs became closely contact w让h mitochondria and other cellular organelles. Additionally mitochondrial activity was suppressed by OA in PLIN2 null cells. Our results reveal the pivotal roles of PLIN2 in governing LD dynamics and their relationship to mitochondria, and suggest a reciprocal stabilization between PLIN2 and LDs. | Shimeng Xu Fei Zou Zhiqing Diao Shuyan Zhang Yaqin Deng Xiaotong Zhu Liujuan Cui Jinhai Yu Zhiguang Zhang Adekunle Toyin Bamigbade Hongchao Zhang Xuan Wei Xuelin Zhang Bin Liang Pingsheng Liu | 2019 | Biophysics Reports2019，5，3： | 1 |
| 7 | A framework approach to address the trend and causes of flood stage change in a river reach downstream of a dam influenced by tributaries显示文摘The evaluation of the trend of flood stage changes in alluvial rivers downstream of dams is important for flood management.However,the flood stage associated with a given discharge generally is nonstationary in river reaches with multiple tributaries.This is not only because of the dam-induced shifting in the cross-sectional area and/or channel roughness but also because of the backwater induced by high flows from the tributaries.To determine the total trend of the flood stage and quantify the separate contri-butions of hydrological and geomorphic effects,the current study proposed a framework approach consisting of hydrological analysis and multiscenario numerical modeling.By this means,the trend in the flood stage could be distinguished from the stage oscillation driven by varying factors,including extreme hydrologic events.The effects of chronic changes,including channel incision and flow resistance in-crease,also were quantitatively separated.This framework was applied to the ChenglingjieDatong(CD)reach downstream of the Three Gorges Dam(TGD)in the Yangtze River,China.The results indicated that the effect of the roughness increase counterbalanced the effect of channel incision when the flow discharge was beyond the bankfull level.The backwater effect induced by tributary inflow was the major cause of the flood stage rise in recent years.The method presented in the current study provides a useful tool for managers and engineers to obtain better insight into the driving mechanisms of flood stage changes in river reaches that are downstream of dams.These findings indicate that the flood stage may not decline or may even occasionally increase,although the cross-sectional area was enlarged by channel incision.Special attention should be given to the flood risk situation in the study reach after the TGD began operation. | Zhaohua Sun Shanshan An Xinyue Zhou Zhiqing Li Lei Zou | 2023 | International Journal of Sediment Research2023，38，5： | 0 |
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