Hydrothermal synthesis of high surface area CuCrO<sub>2</sub> for H<sub>2</sub> production by methanol steam reforming

Huang, Rong-Jun; Sakthinathan, Subramanian; Chiu, Te‐Wei; Dong, Chaofang

doi:10.1039/d1ra01332g

Cited by 16 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kinetic analysis suggests that the selectivity to CO can be lowered by increasing contact time. Chiu et al studied a series of Cucontaining delafossite materials, including CuCrO 2 , 190,191 196 The best activity is achieved by co-impregnation, offering methanol conversion of 88% and CO selectivity of less than 1.8%. Huang et al studied the influence of Ce at Cu/SBA-15 on the catalytic performance.…”

Section: Heterogeneous Catalysis For Msrmentioning

confidence: 99%

“…Kinetic analysis suggests that the selectivity to CO can be lowered by increasing contact time. Chiu et al studied a series of Cu-containing delafossite materials, including CuCrO 2 , 190,191 CuCr x Fe 1− x O 2 , 192 CuFeO 2 –CeO 2 , 193 and CuYO 2 194 in MSR. The promotion effect of In 2 O 3 on Cu/SiO 2 was studied by Santo et al 195 The CO selectivity drops from 0.37% to 0.08% at 260 °C while the H 2 formation rate increases from 237 mmol h −1 g cat −1 to 301 mmol h −1 g cat −1 with the addition of 1 wt% In.…”

Section: Methanolmentioning

confidence: 99%

See 1 more Smart Citation

Catalytic hydrogen storage in liquid hydrogen carriers

Han

Chai

et al. 2023

EES. Catal.

View full text Add to dashboard Cite

show abstract

Section: Heterogeneous Catalysis For Msrmentioning

confidence: 99%

Section: Methanolmentioning

confidence: 99%

Catalytic hydrogen storage in liquid hydrogen carriers

Han

Chai

et al. 2023

EES. Catal.

View full text Add to dashboard Cite

show abstract

“…The delafossite copper oxides CuCrO 2 [31] and CuFeO 2 [32] have also been used as catalysts in the SRM process. Nevertheless, the use of copper-based SRM catalysts presents difficulties in dispersibility and thermal stability, resulting in narrow ranges of the catalysis time and reaction temperature.…”

Section: Introductionmentioning

confidence: 99%

ZnO-ZnFe2O4 Catalyst for Hydrogen Production from Methanol Steam Reforming

Hsu

Sakthinathan

et al. 2023

Catalysts

Self Cite

View full text Add to dashboard Cite

In this study, ZnFe2O4 and ZnO-ZnFe2O4 catalysts were prepared using the glycine–nitrate process (GNP). The prepared ZnFe2O4 and ZnO-ZnFe2O4 catalyst powders were characterized using a scanning electron microscope, transmission electron microscope, XRD diffraction studies, and selected area diffraction pattern studies. In addition, the specific surface area was measured using a Brunauer–Emmett–Teller specific surface area analysis. The hydrogen reduction in different temperature ranges was analyzed using the H2 temperature-programmed reduction technique. The specific surface area of the ZnFe2O4 was 5.66 m2/g, and the specific surface area of the ZnO-ZnFe2O4 was 8.20 m2/g at a G/N ratio of 1.5 and at a G/N ratio of 1.7, respectively. The specific surface area of the ZnFe2O4 was 6.03 m2/g, and the specific surface area of the ZnO-ZnFe2O4 was 11.67 m2/g. The ZnFe2O4 and ZnO-ZnFe2O4 were found to have the best catalytic effect at 500 °C. In particular, the highest H2 generation rate of the ZnO-ZnFe2O4 (GN = 1.7) at 500 °C was 7745 mL STP min−1 g-cat−1. Moreover, the ZnO-ZnFe2 O4 catalyst demonstrated good H2 selectivity and stability during the process of steam reforming methanol. Therefore, the ZnO-ZnFe2O4 catalyst powder exhibited high catalytic activity due to the good dispersibility of the ZnO, which increased the specific surface area of the catalyst. In the future, the catalyst can be applied to the steam reforming of methanol for industrial purposes.

show abstract

“…Many methods could be used to prepare Cu-Cr-O thin films, including pulsed laser deposition [6], chemical solution deposition [7], solid-state reaction method [8], hydrothermal method [9], chemical vapor deposition [10], and reactive sputter deposition [11][12][13][14]. Among them, reactive sputter deposition is one of the most frequently used methods for growing thin films because it can provide highly uniform thickness in large-area depositions.…”

Section: Introductionmentioning

confidence: 99%

Annealing effect on the structural and optoelectronic properties of Cu-Cr-O thin films deposited by reactive magnetron sputtering using a single CuCr target

Tsai,

Chen,

Huang

et al. 2023

Materials Science-Poland

View full text Add to dashboard Cite

The aim of this study is to explore the structural and optoelectronic properties of Cu-Cr-O thin films when processed by the magnetron sputtering method using a single equimolar CuCr alloy target. These films were then post-annealed in a controlled Ar atmosphere at 500°C to 800°C for 2 h. The as-deposited Cu-Cr-O thin film consisted of an amorphous phase and exhibited extremely poor optoelectronic properties. After annealing was conducted at 500°C, monoclinic CuO and spinel CuCr2O4 phases were simultaneously formed in the film. Upon increasing the annealing temperature to 600°C, the CuCr2O4 phase reacted completely with the CuO phase and transformed into the delafossite CuCrO2 phase, possessing optimal optoelectronic performance. It has an electrical resistivity of 41 Ω-cm and a light transmittance of 49.5%, making it suitable for p-type transparent conducting electrodes. A further increase in annealing temperature resulted in larger grains and greater surface roughness and void density, which, in turn, degraded the optoelectronic performance.

show abstract

Hydrothermal synthesis of high surface area CuCrO₂ for H₂ production by methanol steam reforming

Abstract: Hydrothermal synthesis of CuCrO2 nanopowder for H2 production by methanol steam reforming.

Cited by 16 publications

References 32 publications

Catalytic hydrogen storage in liquid hydrogen carriers

Catalytic hydrogen storage in liquid hydrogen carriers

ZnO-ZnFe2O4 Catalyst for Hydrogen Production from Methanol Steam Reforming

Annealing effect on the structural and optoelectronic properties of Cu-Cr-O thin films deposited by reactive magnetron sputtering using a single CuCr target

Contact Info

Product

Resources

About

Hydrothermal synthesis of high surface area CuCrO2 for H2 production by methanol steam reforming

Abstract: Hydrothermal synthesis of CuCrO2 nanopowder for H2 production by methanol steam reforming.

Cited by 16 publications

References 32 publications

Catalytic hydrogen storage in liquid hydrogen carriers

Catalytic hydrogen storage in liquid hydrogen carriers

ZnO-ZnFe2O4 Catalyst for Hydrogen Production from Methanol Steam Reforming

Annealing effect on the structural and optoelectronic properties of Cu-Cr-O thin films deposited by reactive magnetron sputtering using a single CuCr target

Contact Info

Product

Resources

About

Hydrothermal synthesis of high surface area CuCrO₂ for H₂ production by methanol steam reforming