Nanoporous Metals for Heterogeneous Catalysis: Following the Success of Raney Nickel

Gao, Yanxiu; Ding, Yi

doi:10.1002/chem.202000471

Cited by 45 publications

(31 citation statements)

References 115 publications

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“…Among nanoporous metals, nanoporous gold (NPG) is a widely used nanomaterial for the construction of electrochemical sensors. The three-dimensional nanoporous structure of NPG gives it many excellent properties, including good electrical conductivity, chemical stability, and enhanced response signal [ 39 , 40 , 41 , 42 ]. Especially, NPG exhibits excellent electrocatalytic activity properties for many compounds.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Detection of Uric Acid and Creatinine in Human Urine Based on Nanoporous Gold

et al. 2022

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Given the significance of uric acid and creatinine in clinical diagnostic, disease prevention and treatment, a multifunctional electrochemical sensor was proposed for sensitive detection of uric acid and creatinine. The sensitive detection of uric acid was realized based on the unique electrochemical oxidation of nanoporous gold (NPG) towards uric acid, showing good linearity from 10 μM to 750 μM with a satisfactory sensitivity of 222.91 μA mM−1 cm−2 and a limit of detection (LOD) of 0.06 μM. Based on the Jaffé reaction between creatinine and picric acid, the sensitive detection of creatinine was indirectly achieved in a range from 10 to 2000 μM by determining the consumption of picric acid in the Jaffé reaction with a detection sensitivity of 195.05 μA mM−1 cm−2 and a LOD of 10 μM. For human urine detection using the proposed electrochemical sensor, the uric acid detection results were comparable to that of high-performance liquid chromatography (HPLC), with a deviation rate of less than 10.28% and the recoveries of uric acid spiked in urine samples were 89~118%. Compared with HPLC results, the deviation rate of creatinine detection in urine samples was less than 4.17% and the recoveries of creatinine spiked in urine samples ranged from 92.50% to 117.40%. The multifunctional electrochemical sensor exhibited many advantages in practical applications, including short detection time, high stability, simple operation, strong anti-interference ability, cost-effectiveness, and easy fabrication, which provided a promising alternative for urine analysis in clinical diagnosis.

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Section: Introductionmentioning

confidence: 99%

Sensitivity Detection of Uric Acid and Creatinine in Human Urine Based on Nanoporous Gold

et al. 2022

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“…Thus, the excellent cycling behaviors should be attributed to the critical functions of Au towards the inhibition of dendric morphologies (Figure 5c). It is noted that Au-based materials could have catalytic properties, [20] which is a key concern for the electrolyte/electrode stability. Pure Na and Na-Au electrodes were compared with an optical microscope in symmetric cells upon Na plating in Figure S14, Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

Capacity‐Limited Na–M foil Anode: toward Practical Applications of Na Metal Anode

Han

2021

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The practical applications of Na metal anodes are severely plagued by unstable Na plating/stripping. Here the fabrication of Na‐rich Na–M (M = Au, Sn, and In) alloy anodes is reported as promising alternatives to address this issue. As compared to metallic Na foil anodes, the alloy foils exhibit improved electrolyte/electrode interface and provide abundant sodiophilic sites for efficient Na plating, while the self‐evolved porous Na‐M structures accommodate volume variation on cycling. Among three alloy foils, the Na–Au system shows the most promising performance. Under practical conditions such as capacity‐limited anodes (5 mAh cm−2) and large stripping/plating capacity (1.0 mAh cm−2), the Na0.9Au0.1 anodes demonstrate stable plating/stripping over 350 h. The proof‐of‐concept full cells assembled with hard carbon or Prussian blue materials and this thin Na0.9Au0.1 anode also have much elongated cycling life than for pristine Na metal anodes. These findings confirm that the rational design of Na–M alloy anodes can be a promising strategy to promote the development of Na metal batteries.

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“…22)) are attractive alternatives to Pd-based catalysts 23 due to their high abundance and costeffectiveness. 24 Though RANEY® nickel is poorly selective, 25 deactivation with copper acetate is found to improve the selectivity towards semi-hydrogenation products. 26 In this study, we focused on Ni-based catalysts for phenylacetylene (PA) semi-hydrogenation under continuous flow conditions (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

“…22)) are attractive alternatives to Pd-based catalysts 23 due to their high abundance and cost-effectiveness. 24 Though RANEY® nickel is poorly selective, 25 deactivation with copper acetate is found to improve the selectivity towards semi-hydrogenation products. 26…”

Section: Introductionmentioning

confidence: 99%

Unraveling high alkene selectivity at full conversion in alkyne hydrogenation over Ni under continuous flow conditions

Bakuru

Fazl-Ur-Rahman

Periyasamy

et al. 2022

Catal. Sci. Technol.

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Nanoporous Metals for Heterogeneous Catalysis: Following the Success of Raney Nickel

Cited by 45 publications

References 115 publications

Sensitivity Detection of Uric Acid and Creatinine in Human Urine Based on Nanoporous Gold

Sensitivity Detection of Uric Acid and Creatinine in Human Urine Based on Nanoporous Gold

Capacity‐Limited Na–M foil Anode: toward Practical Applications of Na Metal Anode

Unraveling high alkene selectivity at full conversion in alkyne hydrogenation over Ni under continuous flow conditions

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