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| 1 | Microwave-assisted synthesis of photoluminescent glutathione-capped Au/Ag nanoclusters: A unique sensor-on-a-nanoparticle for metal ions, anions, and small molecules显示文摘Even though great advances have been achieved in the synthesis of luminescent metal nanoclusters, it is still challenging to develop metal nanoclusters with high quantum efficiency as well as multiple sensing functionalities. Here, we demonstrate the rapid preparation of glutathione-capped Au/Ag nanoclusters (GS-Au/Ag NCs) using microwave irradiation and their unique sensing capacities. Compared to bare GS-Au NCs, the doped Au/Ag NCs possess an enhanced quantum yield (7.8% compared to 2.2% for GS-Au NCs). Several characterization techniques were used to elucidate the atomic composition, particulate character, and electronic structure of the fabricated NCs. According to the X-ray photoelectron spectroscopy (XPS) and X-ray absorption near-edge structure (XANES) spectra, a significant amount of Au exists in the oxidized state as Au(I), and the Ag atoms are positively charged. In contrast to those nanoclusters that detect only one analyte, the GS-Au/Ag NCs can be used as a versatile sensor for metal ions, anions, and small molecules. In this manner, the NCs can be regarded as a unique sensor-on-a-nanoparticle. | Jia Zhang Yue Yuan Yu Wang Fanfei Sun Gaolin Liang Zheng Jiang Shu-Hong Yu | 2015 | Nano Research2015，8，7： | 6 |
| 2 | Erratum to: Bimetallic clusters confined inside silicalite-1 for stable propane dehydrogenation显示文摘Erratum to Nano Research,2023,16(8):10881–10889 http://gffzzd3cc09b8251d45dfsw9nbwuwbwqkc6cxu.ffgz.tsg.suse.edu.cn/10.1007/s12274-023-5953-y The equal contribution symbols were unfortunately missing.Instead of Xueer Wei1,Jiawei Cheng1,Yubing Li1,Kang Cheng1,2(✉),Fanfei Sun3,4(✉),Qinghong Zhang1(✉),and Ye Wang1,21 State Key Laboratory of Physical Chemistry of Solid Surfaces,Collaborative Innovation Center of Chemistry for Energy Materials,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China 2 Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM),Xiamen 361005,China 3 Shanghai Synchrotron Radiation Facility,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201800,China 4 Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201204,China. | Xueer Wei Jiawei Cheng Yubing Li Kang Cheng Fanfei Sun Qinghong Zhang Ye Wang | 2024 | Nano Research2024，17，4： | 1 |
| 3 | Role of local coordination in bimetallic sites for oxygen reduction: A theoretical analysis显示文摘Understanding of the oxygen reduction reaction(ORR)mechanism for single atom catalysts is pivotal for the rational design of non-precious metal cathode materials and the commercialization of fuel cells.Herein,a series of non-precious metal electrocatalysts based on nitrogen-doped bimetallic(Fe and Co)carbide were modeled by density functional theory calculations to predict the corresponding reaction pathways.The study elucidated prior oxygen adsorption on the Fe atom in the dual site and the modifier role of Co atoms to tune the electronic structures of Fe.The reaction activity was highly correlated with the bimetallic center and the coordination environment of the adjacent nitrogen.Interestingly,the preadsorption of*OH resulted in the apparent change of metal atoms'electronic states with the d-band center shifting toward the Fermi level,thereby boosting reaction activity.The result should help promote the fundamental understanding of active sites in ORR catalysts and provide an effective approach to the design of highly efficient ORR catalysts on an atomic scale. | Yuqi Yang Hao Zhang Zhaofeng Liang Yaru Yin Bingbao Mei Fei Song Fanfei Sun Songqi Gu Zheng Jiang Yuen Wu Zhiyuan Zhu | 2020 | Journal of Energy Chemistry2020，29，5： | 1 |
| 4 | Understanding the synergetic interaction within α-MoC/β-Mo2C heterostructured electrocatalyst显示文摘Constructing heterostructure is an important strategy to design efficient electrocatalysts. The synergetic interaction between dissimilar materials has been considered as the origin of the activity enhancement,however, the interfacial interaction is challenging to probe, thus, the underlying mechanism remains obscure. Here, we reported a heterostructured α-MoC/β-Mo2 C electrocatalyst for hydrogen evolution in alkaline media, which shows a significant electrocatalytic activity improvement as compared to the single component. Based on extensive characterizations including high-resolution transmission electron microscopy and X-ray absorption fine structure(XAFS) spectroscopy, together with density functional theory, we unraveled the synergetic interaction between α-MoC and β-Mo2 C, implying that α-Mo C sites are beneficial for water dissociation and hydrogen prefers to release on β-Mo2 C sites. | Hao Zhang Haiyan Jin Yuqi Yang Fanfei Sun Yang Liu Xianlong Du Shuo Zhang Fei Song Jianqiang Wang Yong Wang Zheng Jiang | 2019 | Journal of Energy Chemistry2019，28，8： | 1 |
| 5 | Unraveling the Dynamic Structural Evolution of Phthalocyanine Catalysts during CO_(2) Electroreduction显示文摘Understanding the atomic and electronic changes of active sites promotes the whole new sight into electrochemical carbon dioxide reduction reaction(CO_(2)RR),which provides a feasible strategy to achieve carbon neutrality.Here we employ operando high-energy resolution fluorescence-detected Xray absorption spectroscopy(HERFD-XAS)to track the structural evolution of Ni(II)phthalocyanine(NiPc),considered as the model catalysts with uniform Ni-N_(4)-C_(8) moiety,during the CO_(2)RR.The HERFD-XAS method is in favor of elucidating the interaction of the reactant/catalyst interface from the atomic electronic structure dimension,facilitating the establishment of the catalytic mechanism and the dynamic structure changes.Based on operando measurement,surface sensitive difference spectra(△μ)and spectroscopy simulation,the interfacial interactions between the active sites of NiPc and reactants are monitored and the Ni species gradually reduced by increasing the applied potential is discovered.HERFD-XAS method offers an advanced and powerful tool for elucidating the complex catalytic mechanism in further various systems. | Jianing Mao Bingbao Mei Ji Li Shuai Yang Fanfei Sun Siyu Lu Wei Chen Fei Song Zheng Jiang | 2022 | Chinese Journal of Structural Chemistry2022，41，10： | 1 |
| 6 | Characterization of CoMn catalyst by in situ X-ray absorption spectroscopy and wavelet analysis for Fischer–Tropsch to olefins reaction显示文摘Cobalt carbide has recently been reported to catalyse the FTO con version of syngas with high selectivity for the production of lower olefins (C2-C4). Clarifying the formation process and atomic structure of cobalt carbide will help understand the catalytic mechanism of FTO. Herein, hydrogenati on of carb on monoxide was investigated for cobalt carbide synthesized from CoMn catalyst, followed by X-ray diffraction, transmission electron microscopy, temperature programmed reaction and in situ X-ray absorption spectroscopy. By monitoring the evolution of cobalt carbide during syngas conversion, the wavelet transform results give evidenee for the formation of the cobalt carbide and clearly demonstrate that the active site of catalysis was cobalt carbide. | Ruoou Yang Zhaoming Xia Ziang Zhao Fanfei Sun Xianlong Du Haisheng Yu Songqi Gu Liangshu Zhong Jingtai Zhao Yunjie Ding Zheng Jiang | 2019 | Journal of Energy Chemistry2019，28，5： | 0 |
| 7 | Unveiling the mechanism of charge compensation in Li_(2)Ru_(x)Mn_(1-x)O_(3)by tracking atomic structural evolution显示文摘The relationship between the structural evolution and redox of Li-rich transition-metal layered oxides(LLOs)cathodes remains ambiguous,obstructing the development of high-performance lithium-ion(Li^(+))battery.Herein,the coherent effects of local atomic and electronic structure in Li_(2)Ru_(x)Mn_(1-x)O_(3)(LRMO)with a wide voltage window(1.3–4.8 V)is identified by in situ X-ray absorption fine spectroscopy(XAFS)and chemometrics.We not only skillfully separated the redox active structures to track the electrochemical path,but also visualized the coupling mechanism between the evolution of Ru-Ru dimer and the(de)excitation of cations and anions.Furthermore,introducing manganese triggers the“heterogeneity”of coordination environment and electronic structure between Ru and Mn after discharge to 3 V.The change of thermodynamic and kinetic paths affects the relithiation,and further leads to the hysteresis of the anion activation structure relaxation of Li_(2)Ru_(0.4)Mn_(0.6)O_(3)relative to Li_(2)RuO_(3)(LRO).Additionally,it is demonstrated that the high charge cut-off voltage restrains the relaxation of anionic active structure in LRO from a new perspective through comparative experiments.Our work associates the evolution of atomic structure with charge compensation and negative electrochemical reactions such as voltage hysteresis(VH)and capacity attenuation,deepening the understanding electrochemical reaction mechanism of LLOs during the first cycle and providing a theoretical support for the further design and synthesis of high-efficiency cathodes. | Ji Li Hongzhou Liu Shun Zheng Yande Li Daming Zhu Fanfei Sun Jingyuan Ma Songqi Gu Panzhe Qiao Shuai Yang Xianlong Du Xiaosong Liu Zhi Liu Bingbao Mei Zheng Jiang | 2022 | Journal of Energy Chemistry2022，，12： | 0 |
| 8 | Bimetallic clusters confined inside silicalite-1 for stable propane dehydrogenation显示文摘The noble metal-based bimetallic clusters with high atom utilization and surface energy have been widely applied in heterogeneous catalysis,but the stabilization of these metastable clusters in harsh reaction conditions is quite challenging.Herein,we synthesize a series of Pt-,Pd-,and Ru-based clusters promoted by a second non-noble metal(Zn,Cu,Sn,and Fe),which are confined inside silicalite-1(pure silica,S-1)crystals by a ligand-protected method.The second metal could well stabilize and disperse the noble atoms inside the rigid S-1 zeolites via Si–O–M bonds,thus enabling to lower the usage of expensive noble metals in catalysts.The as-synthesized bimetallic catalysts exhibited excellent performance in non-oxidative propane dehydrogenation(PDH)reaction,which is typically operated above 500℃.The PtZn@S-1,PtCu@S-1,and PtSn@S-1 with only a~0.17 wt.%Pt loading offer a significant enhancement in PDH performance compared with the conventional PtSn/Al_(2)O_(3)catalyst with a 0.5 wt.%Pt loading prepared by impregnation method.Notably,the PtSn@S-1 provides a propane conversion of 45%with a 99%propylene selectivity at 550℃,close to the thermodynamic equilibrium.Furthermore,the PtSn@S-1 exhibits excellent stability during 300 h on stream and high tolerance to regeneration by a simple calcination step. | Xueer Wei Jiawei Cheng Yubing Li Kang Cheng Fanfei Sun Qinghong Zhang Ye Wang | 2023 | Nano Research2023，16，8： | 0 |
| 9 | Boosting hydrogen peroxide production via establishment and reconstruction of single-metal sites in covalent organic frameworks显示文摘Covalent organic frameworks(COFs)have been well developed in electrocatalytic systems owing to their controllable skeletons,porosities,and functions.However,the catalytic process in COFs remains underexplored,hindering an in-depth understanding of the catalytic mechanism.In this work,uniform Pt-N_(1)O_(1)Cl_(4)sites chelated via C-N and C=O bonds along the one-dimensional and open channels of TP-TTA-COF were established.Different from conventional single-metal sites constructed for the near-free platinum for hydrogen evolution,the as-constructed PtCl-COF showed 2e−oxygen reduction for H_(2)O_(2)production.We tracked the dynamic evolution process of atomic Pt sites in which Pt-N_(1)O_(1)Cl_(4)was transformed into Pt-N_(1)O_(1)(OH)_(2)using in situ X-ray adsorption.The theoretical calculations revealed that the strong Pt-support interaction in Pt-N_(1)O_(1)(OH)_(2)facilitated*OOH formation and thus led to higher selectivity and activity for the oxygen reduction reaction in the 2e−pathway.This work can expand the applications of COFs through the regulation of their local electronic states for the manipulation of the metal center. | Shuai Yang Lanlu Lu Ji Li Qingqing Cheng Bingbao Mei Xuewen Li Jianing Mao Panzhe Qiao Fanfei Sun Jingyuan Ma Qing Xu Zheng Jiang | 2023 | SusMat2023，3，3： | 0 |
| 10 | Self-supported Ni6MnO8 3D mesoporous nanosheet arrays with ultrahigh lithium storage properties and conversion mechanism by in-situ XAFS显示文摘Murdochite 类型 Ni 6 MnO 8 在碳布(NMO-SA/CC ) 上种的三维的 mesoporous nanosheet 数组被综合使用一在原处生长策略。作为 self-supported 为解放的没有文件夹的阳极, NMO-SA/CC 层次 nanostructures 展览超离频能力,优秀骑车稳定性,和好率能力。优秀的锂存储表演能被归功于到在 NMO-SA 和 CC 之间的完美的电的接触。在薄 nanosheet 的 mesopores 能由减少与电解质最大化电极接触李 + 散开路径。而且,这些效果减轻在李 + intercalation/deintercalation 周期期间从大体积变化发源的弄成粉和凝块。在原处,在起始的 lithiation/delithiation 过程期间记录的 X 光检查吸收罚款结构(XAFS ) 光谱揭示变换反应过程。 | Dongdong Zhao Peng Yu Lei Wang Fanfei Sun Li Zhao Chungui Tian Wei Zhou Honggang Fu | 2017 | Nano Research2017，10，1： | 0 |
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