Enhanced Metal-Support Interaction in Ni/Co                         3                         O                         4                         /TiO                         2                          Nanorods toward Stable and Dynamic Hydrogen Production from Phenol Steam Reforming

Tariq Abbas; Muhammad Tahir; Nor Aishah Saidina Amin

doi:10.1021/acs.iecr.8b03542

Enhanced Metal-Support Interaction in Ni/Co ₃ O ₄ /TiO ₂ Nanorods toward Stable and Dynamic Hydrogen Production from Phenol Steam Reforming

Tariq Abbas
, Muhammad Tahir
, Nor Aishah Saidina Amin

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

53 Citations (Scopus)

Abstract

The fabrication of highly stable Ni and Co ₃ O ₄ nanocube-supported TiO ₂ nanorods (NRs) catalysts with improved metal-support interaction for steam reforming of phenol (SRP) has been investigated. An enhanced catalytic performance of Ni/Co ₃ O ₄ /TiO ₂ NRs with H ₂ -rich gas and hardly formed coke was achieved and rationalized with spectroscopic results and structural assessments. Over 10% Ni/5% Co ₃ O ₄ /TiO ₂ NRs, SRP and water gas shift reactions dominate, producing mostly H ₂ and CO ₂ , yet Ni/TiO ₂ microparticles promoted CO. With catalyst loading, steam-to-carbon ratio, and gas hourly space velocity, the H ₂ yield was improved with higher CO ₂ /CO ratio and low CO yield. A Ni/Co ₃ O ₄ /TiO ₂ NRs catalyst possesses excellent stability, which prevailed for more than 100 h without obvious deactivation. The high performance was due to a 1D TiO ₂ NRs/Co ₃ O ₄ nanocubes heterojunction, good metal dispersion, and higher reducibility, thereby providing a strong interaction of bimetallic active sites. This study reveals that Co ₃ O ₄ promotes Ni/TiO ₂ NRs activity and stability toward H ₂ production and is promising for commercial applications.

Original language	English
Pages (from-to)	517-530
Number of pages	14
Journal	Industrial and Engineering Chemistry Research
Volume	58
Issue number	2
DOIs	https://doi.org/10.1021/acs.iecr.8b03542
Publication status	Published - Jan 16 2019
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

UN SDGs

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

Access to Document

10.1021/acs.iecr.8b03542

Cite this

Abbas, T., Tahir, M., & Saidina Amin, N. A. (2019). Enhanced Metal-Support Interaction in Ni/Co ₃ O ₄ /TiO ₂ Nanorods toward Stable and Dynamic Hydrogen Production from Phenol Steam Reforming Industrial and Engineering Chemistry Research, 58(2), 517-530. https://doi.org/10.1021/acs.iecr.8b03542

Enhanced Metal-Support Interaction in Ni/Co ₃ O ₄ /TiO ₂ Nanorods toward Stable and Dynamic Hydrogen Production from Phenol Steam Reforming . / Abbas, Tariq; Tahir, Muhammad; Saidina Amin, Nor Aishah.
In: Industrial and Engineering Chemistry Research, Vol. 58, No. 2, 16.01.2019, p. 517-530.

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

Abbas, T, Tahir, M & Saidina Amin, NA 2019, ' Enhanced Metal-Support Interaction in Ni/Co ₃ O ₄ /TiO ₂ Nanorods toward Stable and Dynamic Hydrogen Production from Phenol Steam Reforming ', Industrial and Engineering Chemistry Research, vol. 58, no. 2, pp. 517-530. https://doi.org/10.1021/acs.iecr.8b03542

Abbas T, Tahir M, Saidina Amin NA. Enhanced Metal-Support Interaction in Ni/Co ₃ O ₄ /TiO ₂ Nanorods toward Stable and Dynamic Hydrogen Production from Phenol Steam Reforming Industrial and Engineering Chemistry Research. 2019 Jan 16;58(2):517-530. doi: 10.1021/acs.iecr.8b03542

Abbas, Tariq ; Tahir, Muhammad ; Saidina Amin, Nor Aishah. / Enhanced Metal-Support Interaction in Ni/Co ₃ O ₄ /TiO ₂ Nanorods toward Stable and Dynamic Hydrogen Production from Phenol Steam Reforming In: Industrial and Engineering Chemistry Research. 2019 ; Vol. 58, No. 2. pp. 517-530.

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abstract = " The fabrication of highly stable Ni and Co 3 O 4 nanocube-supported TiO 2 nanorods (NRs) catalysts with improved metal-support interaction for steam reforming of phenol (SRP) has been investigated. An enhanced catalytic performance of Ni/Co 3 O 4 /TiO 2 NRs with H 2 -rich gas and hardly formed coke was achieved and rationalized with spectroscopic results and structural assessments. Over 10\% Ni/5\% Co 3 O 4 /TiO 2 NRs, SRP and water gas shift reactions dominate, producing mostly H 2 and CO 2 , yet Ni/TiO 2 microparticles promoted CO. With catalyst loading, steam-to-carbon ratio, and gas hourly space velocity, the H 2 yield was improved with higher CO 2 /CO ratio and low CO yield. A Ni/Co 3 O 4 /TiO 2 NRs catalyst possesses excellent stability, which prevailed for more than 100 h without obvious deactivation. The high performance was due to a 1D TiO 2 NRs/Co 3 O 4 nanocubes heterojunction, good metal dispersion, and higher reducibility, thereby providing a strong interaction of bimetallic active sites. This study reveals that Co 3 O 4 promotes Ni/TiO 2 NRs activity and stability toward H 2 production and is promising for commercial applications.",

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