Publications by authors named "Yuande Shi"

Article Synopsis
  • The study introduces a new bi-component catalyst (CuO-In(PO)/C) designed to improve electrocatalytic performance for carbon dioxide reduction, addressing challenges related to the co-promotion of Indium (In) and phosphorus (P).
  • This catalyst shows impressive results, achieving a Faraday efficiency of 88.5% for carbon monoxide production and a total current density of 178.09 mA cm in a KOH solution when tested in a flow cell.
  • The research presents a simplified synthesis method for creating effective Cu-based catalysts and demonstrates the potential of heteroatom P in enhancing electrocatalytic reactions.
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Benefit from the strong coordination property, lanthanide metal ions have been used as competitive reagents to modulate the fluorescence changes of the system. However, lanthanide metal ions as inducers for aggregation-induced emission enhancement in nanosystems is rare. Herein, we report a "turn on-off-on" fluorescent switch for cascade detection of acid phosphatase (ACP) and adenosine triphosphate (ATP) based on the competitive coordination of samarium ions (Sm).

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The electrocatalytic carbon dioxide reduction (CORR) is one of the emerging technologies that can effectively transform carbon dioxide (CO) into valuable products. Electrocatalysts deriving from green synthesis methods will significantly help to establish a new green carbon cycle. Herein, a green electrodeposition method without additional reducing agents was used to synthesize Cu-Ag bimetallic catalysts, and it is shown that the combination of Cu and Ag obviously affects the morphology of the Cu-Ag catalysts, resulting in the formation of elaborate tree-like Cu-Ag clusters.

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The development of non-noble metal catalysts for the optimization of conversion and storage devices is an important research topic. Hence, the microsphere MoO/MoC/C heterojunction composites, which play an important role in the oxygen reduction reaction (ORR) and the hydrogen evolution reaction (HER), were synthesized using the solvothermal-sintering method. The results revealed that the as-prepared composite exhibited better ORR and HER catalytic performances than those of MoO/MoC and Vulcan XC-72R (carbon black), and approaching that of commercial Pt/C.

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Constructing a unique electrochemical interface to enhance the catalytic capacity of Pt-based catalysts is indispensable for wider application of the hydrogen evolution reaction (HER). Herein, platinum-analogous molybdenum carbide (MoC) was combined with a lower content of Pt to construct the Pt/MoC (C) heterostructure a solid-phase method, using ammonium molybdate as the precursor. Vulcan-C served as a support to promote the distribution of the Pt and MoC heterostructure, and cooperative effects between Pt and the MoC heterostructure contributed to the significantly improved catalytic capacity of Pt.

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Targeting the potential application of morphological carbon in electrode materials, a space-sacrificed pyrolysis strategy was applied for the preparation of boron-doped carbon spheres (B-CSs), using commercial triphenyl borate (TPB) as carbon and boron co-source. The unique structure of TPB play an important role in the sacrificed space, and has notable effect on the surface area of B-CSs. The as prepared B-CSs possess a high surface area and boron content with uniform boron atoms distribution and high surface polarity, which contributes to the improvement of pseudo-capacitance.

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Three 3D polymeric complexes containing polynuclear Co(ii) units, [Co(bpda)(bib)]·HO (1), [Co(OH)(HO)(bpda)(bib)]·2HO (2), and [Co(OH)(bib)(bpt)]·HO (3) (Hbpda = biphenyl-2,4'-dicarboxylic acid, Hbpt = biphenyl-3,4',5-tricarboxylic acid, bib = 1,4-bis(1-imidazolyl)benzene), have been prepared by urothermal synthesis. Complex 1 exhibits an unusual (4,6)-connected 3D network based on binuclear Co(ii) clusters and Co centers bridged by bpda and bib ligands. Complex 2, containing a novel pentanuclear Co(ii) cluster, features a porous 3D MOF with a regular nanosized tunnel.

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Bisphenol A (BPA), a typical endocrine disruptor, is widely used as a key monomer in the packaging industry. Residual monomer can transfer from the package material to the food and thereby pose a risk to the health of the consumer, so determination of BPA migration is highly important for food safety control. In this study, a simple but sensitive electrochemiluminescence (ECL) biosensor, which combines the characteristics of high selectivity of an aptamer and high sensitivity of ECL, has been developed to detect BPA from package materials.

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The {[PMo(12)O(40)](3-)/PAMAM}(n) multilayer films are prepared by LBL electrostatic assembly technique, and their uniform and homogeneous traits have been verified by cyclic voltammetry. The {[PMo(12)O(40)](3-)/PAMAM}(n) multilayer films with PAMAM as the outmost layer, having an open structure and exhibiting good penetrability for the solvent molecules at low pH, are used as matrices for electro-deposition of Pt micro-nano clusters in situ. X-ray photoelectron spectroscopy (XPS) analysis and field emission scanning electron microscope (FE-SEM) characterization show that the unique Pt micro-nano clusters with flower-like structure have been immobilized on the surface of {[PMo(12)O(40)](3-)/PAMAM}(n) multilayer films.

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