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| 1 | Atomically dispersed Au_1 catalyst towards efficient electrochemical synthesis of ammonia显示文摘Tremendous efforts have been devoted to explore energy-efficient strategies of ammonia synthesis to replace Haber–Bosch process which accounts for 1.4% of the annual energy consumption. In this study,atomically dispersed Au_1 catalyst is synthesized and applied in electrochemical synthesis of ammonia under ambient conditions. A high NH_4^+ Faradaic efficiency of 11.1% achieved by our Au_1 catalyst surpasses most of reported catalysts under comparable conditions. Benefiting from efficient atom utilization, an NH_4^+ yield rate of 1,305 lg h^(-1) mg_(Au)^(-1) has been reached, which is roughly 22.5 times as high as that by supported Au nanoparticles. We also demonstrate that by employing our Au_1 catalyst, NH4+can be electrochemically produced directly from N_2 and H_2 with an energy utilization rate of 4.02 mmol kJ^(-1). Our study provides a possibility of replacing the Haber–Bosch process with environmentally benign and energy-efficient electrochemical strategies. | Xiaoqian Wang Wenyu Wang Man Qiao Geng Wu Wenxing Chen Tongwei Yuan Qian Xu Min Chen Yan Zhang Xin Wang Jing Wang Jingjie Ge Xun Hong Yafei Li Yuen Wu Yadong Li | 2018 | Science Bulletin2018，63，19： | 22 |
| 2 | Histone Deacetylase HDA9 and WRKY53 Transcription Factor Are Mutual Antagonists in Regulation of Plant Stress Response显示文摘Epigenetic regulation of gene expression is important for plant adaptation to environm ental changes.Previous results showed that Arabidopsis RPD3-like histone deacetylase HDA9 is known to function in repressing plant response to stress in Arabidopsis.However,how HDA9 targets to specific chromatin loci and controls gene expression netw orks involved in plant response to stress remains largely unclear.Here,we show that HDA9 represses stress tolerance response by interacting with and regulating the DNA binding and transcriptional activity of WRKY53,which functions as a high-hierarchy positive regulator of stress response.We found that WRKY53 is post-translationally modified by lysine acetylation at multiple sites,some of which are removed by HDA9,resulting in inhibition of WRKY53 transcription activity.Conversely,WRKY53 negatively regulates HDA9 histone deacetylase activity.Collectively,our results indicate that HDA9 and WRK53 are reciprocal negative regulators of each other's activities,illustrating how the functional interplay between a chromatin regulator and a transcription factor regulates stress tolerance in plants. | Yu Zheng Jingyu Ge Chun Bao Wenwen Chang Jingjing Liu Jingjie Shao Xiaoyun Liu Lufang Su Lei Pan Dao-Xiu Zhou | 2020 | Molecular Plant2020，13，4： | 6 |
| 3 | Methanol electro-oxidation to formate on iron-substituted lanthanum cobaltite perovskite oxides显示文摘Electrochemically producing formate by oxidizing methanol is a promising way to add value to methanol.Noble metal-based electrocatalysts,which have been extensively studied for the methanol oxidation reaction,can catalyze the complete oxidation of methanol to carbon dioxide,but not the mild oxidation to formate.As a result,exploring efficient and earth-abundant electrocatalysts for formate production from methanol is of interest.Herein,we present the electro-oxidation of methanol to formate,catalyzed by iron-substituted lanthanum cobaltite(LaCo_(1-x)Fe_(x)O_(3)).The Fe/Co ratio in the oxides greatly influences the activity and selectivity.This effect is attributed to the higher affinity of Fe and Co to the two reactants:CH3OH and OH,respectively.Because a balance between these affinities is favored,LaCo_(0.5)Fe_(0.5)O_(3) shows the highest formate production rate,at 24.5 mmol h^(-1) g_(oxide)^(-1),and a relatively high Faradaic efficiency of 44.4%in a series of(LaCo_(1-x)Fe_(x)O_(3))samples(x=0.00,0.25,0.50,0.75,1.00)at 1.6 V versus a reversible hydrogen electrode. | Fanxu Meng Chencheng Dai Zheng Liu Songzhu Luo Jingjie Ge Yan Duan Gao Chen Chao Wei Riccardo Ruixi Chen Jiarui Wang Daniel Mandler Zhichuan J.Xu | 2022 | eScience2022，2，1： | 1 |
| 4 | Edge effect factor affecting the tribological properties in water of protrusion surface textures on stainless steel显示文摘Surface textures have been demonstrated to have a positive effect on the friction reduction.However,sharp edges of the normally textured patterns usually cause stress concentration and severe wear during sliding,especially for non-conformal contacting pairs.In this study,protrusion-type textures were fabricated at different area ratios on stainless steel discs and edge profiling was performed for the protrusions,and friction tests were conducted in water to investigate the tribological properties.The results show that the friction was reduced markedly by edge profiling due to the formation of wedge contact and im provement of lubricant supply to the contact interfaces under low load.Under high load,severe wear destroyed the wedge contact resulting in high friction as those of the normally textured pairs.High area ratio exhibited better friction reduction effect.The stress analysis via ANSYS indicated that much high stress concentrated at the edges of the protrusions and could be reduced significantly by edge profiling. | Xingyang Wu Zhou Ge Haozhi Niu Jingjie Ruan Jianhua Zhang | 2018 | Biosurface and Biotribology2018，4，2： | 1 |
| 5 | Ir-skinned Ir-Cu Nanoparticles with Enhanced Activity for Oxygen Reduction Reaction显示文摘The development of methanol-tolerate oxygen reduction reaction(ORR)electrocatalysts is of special significance to direct methanol fuel cells system.Irdium is known for its better methanol tolerance than platinum and able to survive in harsh acidic environment.However,its activity is relatively low and thus the approach to improve Ir's ORR is desired.Herein,bimetallic Ir-Cu nanoparticles(NPs)with controllablc Ir/Cu compositions(ca.1:2 to 4:1,atomic ratio)are synthesized via a galvanic replacement-based chemical method.The as-synthesized Ir-Cu NPs are investigated as ORR catalysts after electrochemically leaching out the surface Cu and forming Ir-skinned structures.Around 2-to 3-fold enhancement in the intrinsic activity has been observed in these Ir-skinned Ir-Cu catalysts compared to Ir counterpart.The approach is demonstrated to be a promising way to prepare efficient Ir ORR catalysts and lower catalyst cost. | WANG Jiarui ZHOU Ye SUN Libo GE Jingjie WANG Jingxian DAI Chencheng XU Zhichuan | 2020 | Chemical Research in Chinese Universities2020，36，3： | 1 |
| 6 | The metabolic brain network in patients with Parkinson's disease based on ^(18)F-FDG PET imaging: evaluation of neuronal injury and regeneration显示文摘Over the past two decades,the development of functional imaging methods has greatly promoted our understanding on the change of neurons following neurodegenerative disorders,such as Parkin son’s disease(PD).The application of a spatial covariance analysi on 18F-FDG PET imaging has led to the identification of a distinc tive disease-related metabolic pattern.This pattern has proven to be useful in clinical diagnosis,disease progression monitoring | Jingjie Ge Ping Wu Chuantao Zuo | 2014 | Neural Regeneration Research2014，9，7： | 1 |
| 7 | Synthesis of amorphous Pd-based nanocatalysts for efficient alcoholysis of styrene oxide and electrochemical hydrogen evolution显示文摘Amorphous nanomaterials with long-range disordered structures could possess distinct properties and promising applications,especially in catalysis,as compared with their conventional crystalline counterparts.It is imperative to achieve the controlled preparation of amorphous noble metal-based nanomaterials for the exploration of their phase-dependent applications.Here,we report a facile wet-chemical reduction strategy to synthesize various amorphous multimetallic Pd-based nanomaterials,including PdRu,PdRh,and PdRuRh.The phase-dependent catalytic performances of distinct Pd-based nanomaterials towards diverse catalytic applications have been demonstrated.Specifically,the usage of PdRu nanocatalysts with amorphous and crystalline face-centered cubic(fcc)phases can efficiently switch the ring-opening route of styrene oxide to obtain different products with high selectivity through alcoholysis reaction and hydrogenation reaction,respectively.Moreover,when used as an electrocatalyst for hydrogen evolution reaction(HER),the synthesized amorphous PdRh nanocatalyst exhibits low overpotential and high turnover frequency values,outperforming its crystalline fcc counterpart and most of the reported Pd-based HER electrocatalysts. | Yiyao Ge Jingjie Ge Biao Huang Xixi Wang Guigao Liu Xiang-Huan Shan Lu Ma Bo Chen Guanghua Liu Songmo Du An Zhang Hongfei Cheng Qingbo Wa Shiyao Lu Lujiang Li Qinbai Yun Kuo Yuan Qinxin Luo Zhichuan J.Xu Yonghua Du Hua Zhang | 2023 | Nano Research2023，16，4： | 0 |
| 8 | Palladium-Catalyzed Long-Range Isomerization of Aryl Olefins显示文摘Long-range olefin isomerization could lead to the remote functionalization of hydrocarbon chains,which is advantageous with regards to atom-,step-,and redox economy.However,present methodologies for long-range olefin isomerization are mainly focused on heteroatom directed remote olefin migration;studies using aryl groups as the directing group are limited.The limited examples either utilize aryl olefins with special substituted groups on a benzene ring,or use elaborately optimized ligands or co-catalysts to accelerate the isomerization.A more simple catalytic system for general aryl olefins,without the need for special ligands or co-catalysts,was to be developed.Herein,we report a Pd-catalyzed long-range olefin isomerization(up to 15 units)for general aryl olefins via a 1,2-hydrogen shift mechanism.This methodology provides a simple pathway to long-range olefin isomerization without the participation of special ligands or co-catalysts. | Qianyi Ge Jingjie Meng Huikang Liu Zehua Yang Zhengxing Wu Wanbin Zhang | 2022 | Chinese Journal of Chemistry2022，40，19： | 0 |
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