In situ impregnated Ni/Al2O3 catalysts prepared by binder jet 3D printing using nickel nitrate-containing ink

Hanh My Bui; Tim Kratky; Insu Lee; Rachit Khare; Max Hiller; Steffen Wedig; Sebastian Günther; Olaf Hinrichsen

doi:10.1016/j.catcom.2023.106738

In situ impregnated Ni/Al₂O₃ catalysts prepared by binder jet 3D printing using nickel nitrate-containing ink

Hanh My Bui
, Tim Kratky
, Insu Lee
, Rachit Khare
, Max Hiller
, Steffen Wedig
, Sebastian Günther
, Olaf Hinrichsen

Chair of Chemical Technology

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The binder jetting printing technique enables in situ impregnation of alumina using a Ni(NO₃)₂-containing ink (NI), facilitating omission of impregnation. NI was compared to wet impregnation (WI). Full characterization by quasi-in situ XPS, XAS and TPR revealed the presence of Ni as NiAl₂O₄ spinel. TPR analysis identified surface NiO and NiAl₂O₄ species with facilitated reduction by NI, in addition to the respective species in bulk form. Post-processing affects active site accessibility by coverage. 3D printing limited the Ni loading, but XPS revealed higher metal dispersion by NI. CO₂ hydrogenation confirmed active Ni/Al₂O₃ catalysts with enhanced activity by NI.

Original language	English
Article number	106738
Journal	Catalysis Communications
Volume	182
DOIs	https://doi.org/10.1016/j.catcom.2023.106738
State	Published - Sep 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure
SDG 13 Climate Action

Keywords

Additive manufacturing
Binder jetting
Heterogeneous catalysis
Nickel aluminate spinel
Nickel catalyst
Supported catalyst
Wet impregnation

Access to Document

10.1016/j.catcom.2023.106738

Cite this

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title = "In situ impregnated Ni/Al2O3 catalysts prepared by binder jet 3D printing using nickel nitrate-containing ink",

abstract = "The binder jetting printing technique enables in situ impregnation of alumina using a Ni(NO3)2-containing ink (NI), facilitating omission of impregnation. NI was compared to wet impregnation (WI). Full characterization by quasi-in situ XPS, XAS and TPR revealed the presence of Ni as NiAl2O4 spinel. TPR analysis identified surface NiO and NiAl2O4 species with facilitated reduction by NI, in addition to the respective species in bulk form. Post-processing affects active site accessibility by coverage. 3D printing limited the Ni loading, but XPS revealed higher metal dispersion by NI. CO2 hydrogenation confirmed active Ni/Al2O3 catalysts with enhanced activity by NI.",

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doi = "10.1016/j.catcom.2023.106738",

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T1 - In situ impregnated Ni/Al2O3 catalysts prepared by binder jet 3D printing using nickel nitrate-containing ink

AU - Bui, Hanh My

AU - Kratky, Tim

AU - Lee, Insu

AU - Khare, Rachit

AU - Hiller, Max

AU - Wedig, Steffen

AU - Günther, Sebastian

AU - Hinrichsen, Olaf

PY - 2023/9

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AB - The binder jetting printing technique enables in situ impregnation of alumina using a Ni(NO3)2-containing ink (NI), facilitating omission of impregnation. NI was compared to wet impregnation (WI). Full characterization by quasi-in situ XPS, XAS and TPR revealed the presence of Ni as NiAl2O4 spinel. TPR analysis identified surface NiO and NiAl2O4 species with facilitated reduction by NI, in addition to the respective species in bulk form. Post-processing affects active site accessibility by coverage. 3D printing limited the Ni loading, but XPS revealed higher metal dispersion by NI. CO2 hydrogenation confirmed active Ni/Al2O3 catalysts with enhanced activity by NI.

KW - Additive manufacturing

KW - Binder jetting

KW - Heterogeneous catalysis

KW - Nickel aluminate spinel

KW - Nickel catalyst

KW - Supported catalyst

KW - Wet impregnation

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