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247 results on '"Gong, Mingxing"'

14. Improving Alkaline Hydrogen Oxidation through Dynamic Lattice Hydrogen Migration in Pd@Pt Core‐Shell Electrocatalysts

Author

Zhao, Tonghui, primary, Li, Mengting, additional, Xiao, Dongdong, additional, Yang, Xiaoju, additional, An, Lulu, additional, Deng, Zhiping, additional, Shen, Tao, additional, Gong, Mingxing, additional, Chen, Yi, additional, Liu, Hongfang, additional, Feng, Ligang, additional, Yang, Xuan, additional, Li, Li, additional, and Wang, Deli, additional

Published
2023
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21. Low-loaded Ru on hollow SnO2 for enhanced electrocatalytic hydrogen evolution.

Author

Saira, Yousaf, Li, Zhijuan, Zhu, Yu, Liu, Qicheng, Luo, Wenkai, Wang, Yu, Gong, Mingxing, Fu, Gengtao, and Tang, Yawen

Subjects
HYDROGEN evolution reactions, METAL catalysts, HYDROGEN content of metals, PRECIOUS metals, HYDROGEN
Abstract

In response to the challenges of intermediate poisoning and the high cost of noble metal catalysts in the hydrogen evolution reaction (HER), we develop a Ru-doped SnO2 catalyst. This Ru–SnO2 catalyst has the characteristics of low Ru loading and a hollow structure, which endow it with good electrocatalytic activity and stability for the HER. [ABSTRACT FROM AUTHOR]

Published
2024
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27. Improving Alkaline Hydrogen Oxidation through Dynamic Lattice Hydrogen Migration in Pd@Pt Core‐Shell Electrocatalysts.

Author

Zhao, Tonghui, Li, Mengting, Xiao, Dongdong, Yang, Xiaoju, An, Lulu, Deng, Zhiping, Shen, Tao, Gong, Mingxing, Chen, Yi, Liu, Hongfang, Feng, Ligang, Yang, Xuan, Li, Li, and Wang, Deli

Subjects
HYDROGEN oxidation, ELECTROCATALYSTS, ACTIVATION energy, ION-permeable membranes, HYDROGEN
Abstract

Tracking the trajectory of hydrogen intermediates during hydrogen electro‐catalysis is beneficial for designing synergetic multi‐component catalysts with division of chemical labor. Herein, we demonstrate a novel dynamic lattice hydrogen (LH) migration mechanism that leads to two orders of magnitude increase in the alkaline hydrogen oxidation reaction (HOR) activity on Pd@Pt over pure Pd, even ≈31.8 times mass activity enhancement than commercial Pt. Specifically, the polarization‐driven electrochemical hydrogenation process from Pd@Pt to PdHx@Pt by incorporating LH allows more surface vacancy Pt sites to increase the surface H coverage. The inverse dehydrogenation process makes PdHx as an H reservoir, providing LH migrates to the surface of Pt and participates in the HOR. Meanwhile, the formation of PdHx induces electronic effect, lowering the energy barrier of rate‐determining Volmer step, thus resulting in the HOR kinetics on Pd@Pt being proportional to the LH concentration in the in situ formed PdHx@Pt. Moreover, this dynamic catalysis mechanism would open up the catalysts scope for hydrogen electro‐catalysis. [ABSTRACT FROM AUTHOR]

Published
2024
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31. Pd 4d Orbital Overlapping Modulation on Au@Pd Nanowires for Efficient H2O2Production

Author

Deng, Zhiping, Mostaghimi, Amir Hassan Bagherzadeh, Gong, Mingxing, Chen, Ning, Siahrostami, Samira, and Wang, Xiaolei

Abstract

Isolating Pd atoms has been shown to be crucial for the design of a Pd-based electrocatalyst toward 2e–oxygen reduction reaction (ORR). However, there are limited studies focusing on the systematic compositional design that leads to an optimal balance between activity and selectivity. Herein, we design a series of Au@Pd core@shell structures to investigate the influence of the Pd 4d orbital overlapping degree on 2e–ORR performance. Density functional theory (DFT) calculations indicate that enhanced H2O2selectivity and activity are achieved at Pdnclusters with n≤ 3, and Pd clusters larger than Pd3should be active for 4e–ORR. However, experimental results show that Au@Pd nanowires (NWs) with Pd4as the primary structure exhibit the optimal H2O2performance in an acidic electrolyte with a high mass activity (7.05 A mg–1at 0.4 V) and H2O2selectivity (nearly 95%). Thus, we report that Pd4, instead of Pd3, is the upper threshold of Pd cluster size for an ideal 2e–ORR. It results from the oxygen coverage on the catalyst surface during the ORR process, and such an oxygen coverage phenomenon causes electron redistribution and weakened *OOH binding strength on active sites, leading to enhanced activity of Pd4with only 0.06 V overpotential in acidic media.

Published
2024
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33. Pseudo-Pt Monolayer for Robust Hydrogen Oxidation

Author

Zhao, Tonghui, primary, Li, Mengting, additional, Xiao, Dongdong, additional, Yang, Xiaoju, additional, Li, Qihao, additional, An, Lulu, additional, Deng, Zhiping, additional, Shen, Tao, additional, Gong, Mingxing, additional, Chen, Yi, additional, Wang, Gongwei, additional, Zhao, Xu, additional, Xiao, Li, additional, Yang, Xuan, additional, Li, Li, additional, and Wang, Deli, additional

Published
2023
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45. Additional file 4 of Similarity measurements of B cell receptor repertoire in baseline mice showed spectrum convergence of IgM

Author

Wu, Hongkai, Zhou, Zhichao, Xie, Shi, Yan, Rong, Gong, Mingxing, Tian, Xingui, and Wang, Zhanhui

Abstract

Additional file 4: Fig. S3. Curves of rarefaction analysis for CDR3 aa clonotype. Results (solid lines) were interpolated by subsampling data without replacement in 1% of total clone increments (each with 100 replications) and determining numbers of clonotypes represented by these clones. Clonotype richness (extrapolation, dashed lines) was estimated in up to ��� fivefold observed clones based on Chao estimator formula. Data are shown as means �� SEM (light color). Results were calculated from in-house sequencing repertoires of BAL (a) and C57 (b) and E5349 and E8585 public datasets of BAL (c) and C57 (d). Isotypes, strains, and sample types are shown at top of figure. We used only one dataset with numerous clones for technical duplication.

Published
2022
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46. Additional file 7 of Similarity measurements of B cell receptor repertoire in baseline mice showed spectrum convergence of IgM

Author

Wu, Hongkai, Zhou, Zhichao, Xie, Shi, Yan, Rong, Gong, Mingxing, Tian, Xingui, and Wang, Zhanhui

Abstract

Additional file 7: Fig. S6. The distribution of node numbers in cross-individual clonal lineages. The result was computed from our in-house sequencing data. One dataset with numerous CDR3 nt clonotypes was used for technical duplication.

Published
2022
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47. Additional file 9 of Similarity measurements of B cell receptor repertoire in baseline mice showed spectrum convergence of IgM

Author

Wu, Hongkai, Zhou, Zhichao, Xie, Shi, Yan, Rong, Gong, Mingxing, Tian, Xingui, and Wang, Zhanhui

Abstract

Additional file 9: Fig. S7. Repertoire similarity measured by cross-individual clonal lineages with no less than 5 nodes. The percentage distributions of lineages appeared in different number of blood and spleen samples were calculated from in-house sequencing data of BAL (a) and C57 (b). For the clarity of the color display, the percentages of small sample numbers are omitted (grey squares in a and b). Different colors of the dots indicate the MHSI values were computed from the same mouse or different mice (c). One dataset with numerous CDR3 nt clonotypes was used for technical duplication.

Published
2022
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48. Additional file 6 of Similarity measurements of B cell receptor repertoire in baseline mice showed spectrum convergence of IgM

Author

Wu, Hongkai, Zhou, Zhichao, Xie, Shi, Yan, Rong, Gong, Mingxing, Tian, Xingui, and Wang, Zhanhui

Abstract

Additional file 6: Fig. S5. Similarity distribution of clonotype nearest neighbor. Similarity is ratio (%) of identical nt between CDR3 nt clonotypes and their nearest neighbors. Results were computed for IgA (a and b), IgG (c and d) and IgM (e and f) using our in-house sequencing data and IgM of E5349 and E8585 datasets (g and h). We used one dataset with numerous CDR3 nt clonotypes for technical duplication.

Published
2022
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49. Additional file 5 of Similarity measurements of B cell receptor repertoire in baseline mice showed spectrum convergence of IgM

Author

Wu, Hongkai, Zhou, Zhichao, Xie, Shi, Yan, Rong, Gong, Mingxing, Tian, Xingui, and Wang, Zhanhui

Abstract

Additional file 5: Fig. S4. Heatmap of MHSI. We computed MHSIs through CDR3 aa abundance of each pair of repertories in IgA (a), IgG (b), and IgM (c). Pairs of technical duplications in mice are marked with letters a and b. Top three colored rows indicate samples from different groups of strains, sample types, and batches.

Published
2022
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50. Additional file 3 of Similarity measurements of B cell receptor repertoire in baseline mice showed spectrum convergence of IgM

Author

Wu, Hongkai, Zhou, Zhichao, Xie, Shi, Yan, Rong, Gong, Mingxing, Tian, Xingui, and Wang, Zhanhui

Abstract

Additional file 3: Fig. S2. Heatmap of V/D/J gene usage in IgM. Gene names (a, V gene; b, D gene; c, J gene) are presented in vertical column on the right (D empty in b indicates frequency of clones in which D gene did not emerge in CDR3 region). Mouse IDs are shown at bottom of the row. Pairs of technical duplications in mice are marked letters a and b. Top three colored rows indicate samples from different groups of strains, sample types, and batches.

Published
2022
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