| 1 | Hierarchically structured semiconductor@noble-metal@MOF for high-performance selective photocatalytic CO_(2)reduction显示文摘Photocatalytic CO_(2)reduction to convert solar energy to clean energy remains a critical challenge in exploring efficient catalysts.Herein,a hierarchical structured BiVO4@Au@UiO-66-NH_(2)with high photocatalytic activity was fabricated.The theoretical calculations revealed that the metal–organic framework(MOF)with relative higher conduction band(CB)and UiO-66-NH_(2)with relative lower valence band(VB)could absorb full light spectrum,combining Au nanoparticle with suitable Fermi level into a particulate tandem heterojunction.This configuration can not only lower the activation barrier of CO_(2)reduction using the rich active site of MOF,but also improve the selectivity toward CO by optimizing the reaction pathway.Notably,the experimental evaluation proved that BiVO4@Au@UiO-66-NH2 displays a producing rate of 232.7μmol h^(-1)g^(-1)for CO and a selectivity of 97.2%.The investigation reveals that elaborately integrating multiple functional components into such a hier-archical structure enables optimizing crucial processes in photocatalytic CO_(2)conversion and enhancing selectivity via synergistic catalysis. | Yibo Dou Si-Min Xu Awu Zhou Haozheng Wang Jian Zhou Hong Yan Jian-Rong Li | 2020 | Green Chemical Engineering2020，1，1： | 3 |
| 2 | Revealing the effect of anion-tuning in bimetallic chalcogenides on electrocatalytic overall water splitting显示文摘Enhancing electrocatalytic water splitting performance by modulating the intrinsic electronic structure is of great importance. Here, porous bimetallic oxide and chalcogenide nanosheets grown on carbon paper denoted as NiCo2X4/CP (X = O, S, and Se) are prepared to demonstrate how the anion components affect the electronic structures and thereby disclose the correlation between their intermediates interaction and catalytic activities. The experimental characterization and theoretical calculation demonstrate that Se and S substitution can promote the ratio of Co^(3+)/Co^(2+) and thereby modulate the electronic structure accompanied with the upshift of d band centers, which not only enhance the inner conductivity but also regulate the interaction between the catalyst surface and intermediates, especially for the adsorption of absorbed H and hydroperoxy intermediates towards respective hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). As a result, a full alkaline electrolyzer using NiCo2Se4/CP and NiCo2S4/CP as cathode and anode delivers a low voltage of 1.51 V at 10 mA·cm^(−2), which is comparable even superior to most transition metal-based electrolyzers. | Jian Zhou Yibo Dou Tao He Awu Zhou Xiang-Jing Kong Xue-Qian Wu Tongxin Liu Jian-Rong Li | 2021 | Nano Research2021，14，12： | 2 |
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