TY  - JOUR
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
TI  - In situ impregnated Ni/Al<sub>2</sub>O<sub>3</sub> catalysts prepared by binder jet 3D printing using nickel nitrate-containing ink
JO  - Catalysis communications
VL  - 182
SN  - 1566-7367
CY  - Amsterdam
PB  - Elsevier
M1  - PUBDB-2023-05464
SP  - 106738
PY  - 2023
AB  - The binder jetting printing technique enables in situ impregnation of alumina using a Ni(NOl<sub>3</sub>)l<sub>2</sub>-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 NiAll<sub>2</sub>Ol<sub>4</sub> spinel. TPR analysis identified surface NiO and NiAl<sub>2</sub>Ol<sub>4</sub> 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. COl<sub>2</sub> hydrogenation confirmed active Ni/All<sub>2</sub>Ol<sub>3</sub> catalysts with enhanced activity by NI.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001053398000001
DO  - DOI:10.1016/j.catcom.2023.106738
UR  - https://bib-pubdb1.desy.de/record/593579
ER  -