Optimizing acido-basic profile of support in Ni
supported La
2
O
3
þAl
2
O
3
catalyst for dry reforming
of methane
Fahad S. Al-Mubaddel
a,b
, Rawesh Kumar
c
, Mahmud Lanre Sofiu
a
,
Francesco Frusteri
d
, Ahmed Aidid Ibrahim
a
, Vijay Kumar Srivastava
c
,
Samsudeen Olajide Kasim
a
, Anis Hamza Fakeeha
a,b
,
Ahmed Elhag Abasaeed
a
, Ahmed I. Osman
e
, Ahmed Sadeq Al-Fatesh
a,*
a
Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421,
Saudi Arabia
b
King Abdullah City for Atomic & Renewable Energy, Energy Research & Innovation Center (ERIC) in Riyadh, Riyadh
11451, Saudi Arabia
c
Sankalchand Patel University, Visnagar, Gujarat, 384315, India
d
CNR-ITAE, Istituto di Tecnologie Avanzate per Energia “Nicola Giordano”, Via S. Lucia Sopra Contesse 5, 98126,
Messina, Italy
e
School of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, UK
highlights graphical abstract
The acido-basic property of sup-
port (xLa
2
O
3
þAl
2
O
3
) is fine-tuned
for DRM.
Upon increasing the basic lan-
thana portion, the crystallinity and
acidity declined.
Due to low acid, rich basic profile
and super basic sites, 15% La per-
formed best.
Surface property, acidity and me-
dium basic strength loss made 20%
La performed worst.
article info
Article history:
Received 16 November 2020
Received in revised form
18 January 2021
Accepted 24 January 2021
Available online 17 February 2021
abstract
The increasing alarm of global warming always draws interest in reactions like dry
reforming of methane (DRM) where both global warming gases (CO
2
and CH
4
) are converted
into value-added chemical building blocks, such as syngas. Nickel catalyst active sites
along with support acid-base profiles play a key role in DRM. Herein, xLa
2
O
3
þ(100-x) Al
2
O
3
(x ¼ 0, 10, 15, 20%) supports are prepared and followed by NiO dispersion over the produced
support by impregnation method. It was tested for DRM reaction and characterized with
TGA, XRD, TEM, IR, Surface area and porosity measurement, H
2
-TPR, CO
2
-TPD and NH
3
-
* Corresponding author.
E-mail address: aalfatesh@ksu.edu.sa (A.S. Al-Fatesh).
Available online at www.sciencedirect.com
ScienceDirect
journal homepage: www.elsevier.com/locate/he
international journal of hydrogen energy 46 (2021) 14225 e14235
https://doi.org/10.1016/j.ijhydene.2021.01.173
0360-3199/© 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.