Investigation of the structure activity relationship of palladium-bismuth catalyst in acetylene hydrogenation

Xin TAO; Gui ZHAO; Yunan LI; Chen TIAN; Meng DU; Lingling GUO; Bing NAN; Yuying HUANG; Lina LI

doi:10.11889/j.0253-3219.2023.hjs.46.050101

NUCLEAR TECHNIQUES, Volume. 46, Issue 5, 050101(2023)

Investigation of the structure activity relationship of palladium-bismuth catalyst in acetylene hydrogenation

Xin TAO^1,2,3, Gui ZHAO⁴, Yunan LI^1,3, Chen TIAN^1,3, Meng DU^1,3, Lingling GUO^1,3, Bing NAN^1,3, Yuying HUANG^1,3, and Lina LI^1,3、*

Author Affiliations

¹Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

²University of Chinese Academy of Sciences, Beijing 100049, China

³Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 200120, China

⁴In -situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China

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Figures & Tables(8)

Fig. 1. N₂adsorption-desorption isotherms (a) and pore size distributions of support SiO₂(b)

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Fig. 2. XRD patterns of Pd/SiO₂ and PdBi/SiO₂

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Fig. 3. HAADF-STEM images (a, b) Pd/SiO₂, (c, d) PdBi/SiO₂, (e) Linear scan EDS spectra of the catalyst PdBi/SiO₂

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Fig. 4. The linear combination fitting reasults of Pd K edge of catalysts (a) Pd/SiO₂, (b) PdBi/SiO₂, the linear combination fitting reasults of Bi L₃ edge of catalysts, (c) PdBi/SiO₂, (d) PdBi/SiO₂-activation

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Fig. 5. XANES profiles (a) and EXAFS spectra (b) of the Pd/SiO₂ catalysts, XANES profiles of Bi L₃ in PdBi/SiO₂ (c) and EXAFS spectra of Bi (d)

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Fig. 6. Catalyst perform (a) C₂H₂ conversion and (b) C₂H₄ selectivity as a function of temperature over the different catalysts, (c) H₂-TPR, (d) C₂H₄-TPD

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Table 1. Elemental analysis of PdBi/SiO₂ catalyst
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Table 1. Elemental analysis of PdBi/SiO₂ catalyst
催化剂
Catalysts
Pd的负载量
Pd loading / %(w/w)
Bi的负载量
Bi loading / %(w/w)
Pd/SiO₂ 0.91 ―
PdBi/SiO₂ 0.90 0.81

Table 2. Oxidation state of palladium and bismuth (δ) Curvefit parameters for Pd K-edge and Bi L₃-edge EXAFS for PdBi/SiO₂

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Table 2. Oxidation state of palladium and bismuth (δ) Curvefit parameters for Pd K-edge and Bi L₃-edge EXAFS for PdBi/SiO₂

样品 Sample	δ	Shell	CN ^a）	R / Å ^b）	σ²/ Å²^c）	ΔE₀ / eV ^d）
Pd/SiO₂	2	Pd-O	3.9±0.1	2.02±0.01	0.003	0.4±1.0
		Pd-Pd	4.3±0.3	3.05±0.01	0.006
		Pd-Pd	5.0±0.5	3.45±0.01
PdBi/SiO₂	2	Pd-O	3.5±0.2	2.01±0.01	0.003	1.7±1.1
		Pd-Bi	1.7±0.4	3.38±0.01	0.006
PdBi/SiO₂-activation	0.6	Bi-Pd	10.1±1.2	2.79±0.03	0.008	7.4±2.8
PdBi/SiO₂-activation	0.6	Bi-Bi	2.6±0.8	3.09±0.02	0.009

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Xin TAO, Gui ZHAO, Yunan LI, Chen TIAN, Meng DU, Lingling GUO, Bing NAN, Yuying HUANG, Lina LI. Investigation of the structure activity relationship of palladium-bismuth catalyst in acetylene hydrogenation[J]. NUCLEAR TECHNIQUES, 2023, 46(5): 050101

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Paper Information

Category: Research Articles

Received: Oct. 25, 2022

Accepted: --

Published Online: Jun. 30, 2023

The Author Email:

DOI:10.11889/j.0253-3219.2023.hjs.46.050101

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Elemental analysis of PdBi/SiO2 catalyst

Table 1. Elemental analysis of PdBi/SiO2 catalyst

Table 2. Oxidation state of palladium and bismuth (δ) Curvefit parameters for Pd K-edge and Bi L3-edge EXAFS for PdBi/SiO2

Table 2. Oxidation state of palladium and bismuth (δ) Curvefit parameters for Pd K-edge and Bi L3-edge EXAFS for PdBi/SiO2

Table 1. Elemental analysis of PdBi/SiO₂ catalyst

Table 1. Elemental analysis of PdBi/SiO₂ catalyst

Table 2. Oxidation state of palladium and bismuth (δ) Curvefit parameters for Pd K-edge and Bi L₃-edge EXAFS for PdBi/SiO₂

Table 2. Oxidation state of palladium and bismuth (δ) Curvefit parameters for Pd K-edge and Bi L₃-edge EXAFS for PdBi/SiO₂