Integrating photocatalysis and thermocatalysis to enable efficient CO2 reforming of methane on Pt supported CeO2 with Zn doping and atomic layer deposited MgO overcoating

Pan, Fuping; Xiang, Xianmei; Du, Zichen; Sarnello, Erik; Li, Tao; Liu, Ying

doi:10.1016/j.apcatb.2019.118189

Cited by 137 publications

(102 citation statements)

References 52 publications

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“…Employing CeO 2 in photocatalytic methane reforming is promising because CeO 2 is known to have many oxygen vacancies, which provides various merits in catalytic activity [45]. Pan et al doped zinc ions into CeO 2 and loaded Pt, and finally coated it with atomic layer MgO (Figure 23) [46]. They focused on photocatalytic DRM, but they claimed that both the input of photon energy and thermal energy boosted the conversion.…”

Section: Methodsmentioning

confidence: 99%

Photocatalytic Methane Reforming: Recent Advances

2020

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Methane reforming is an important potential technology for solving both environmental and energy problems. This technology is important because methane is counted as a greenhouse gas, but on the other hand, it can be reformed into industrially valuable compounds. More research has focused on photocatalytic methane reforming, which has a higher activity than thermal catalysts under dark conditions. The reaction selectivity toward specific products in photocatalytic methane reforming is sometimes different from thermal catalyst systems. Herein, we discuss recent advances in photocatalytic methane reforming to provide various strategies for reforming.

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Section: Methodsmentioning

confidence: 99%

Photocatalytic Methane Reforming: Recent Advances

2020

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“…Recently, an approach of photothermocatalysis for CO 2 reduction by water, [ 33–35 ] hydrogen, [ 36–40 ] and methane [ 41–49 ] was developed. The approach is very efficient and promising as it well integrates low energy consumption of photocatalysis with high efficiency of thermocatalysis.…”

Section: Introductionmentioning

confidence: 99%

“…For photothermocatalytic CRM, VIII group metal catalysts were reported to demonstrate catalytic activity. [ 41–49 ] Among the catalysts, nonprecious metal catalysts such as Ni and Co are appealing due to their earth abundance, low cost, and good catalytic activity. [ 43,45–48 ] However, unlike noble metal catalysts with good resistance to carbon deposition, nonprecious metal catalysts are prone to deactivation due to two side‐reactions of carbon deposition such as CO disproportionation (2CO = C + CO 2 , Δ H 298 = −171 kJ mol −1 ) and methane dissociation (CH 4 = C + 2H 2 , Δ H 298 = 75 kJ mol −1 ).…”

Section: Introductionmentioning

confidence: 99%

Formation of NiCo Alloy Nanoparticles on Co Doped Al₂O₃ Leads to High Fuel Production Rate, Large Light‐to‐Fuel Efficiency, and Excellent Durability for Photothermocatalytic CO₂ Reduction

Zhang

et al. 2020

Advanced Energy Materials

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Unique nanocomposites of NiCo alloy nanoparticles with Ni/Co molar ratios of 1.86, 1.60, and 0.38 supported on Co‐doped Al2O3 nanosheets are prepared by a facile approach. Very high fuel production rates of CO (rCO) and H2 (rH2) (70.53 and 63.46 mmol min−1 g−1) and light‐to‐fuel efficiency (η, 29.7%) are achieved via photothermocatalytic CO2 reduction by methane (CRM) on Ni1.60Co/Co‐Al2O3 simply utilizing focused UV‐visible‐infrared (UV‐vis‐IR) illumination. Ni1.60Co/Co‐Al2O3 also demonstrates high rCO and rH2 values (50.99 and 39.72 mmol min−1 g−1) as well as high η value (26.3%) under λ > 560 nm focused vis‐IR illumination. The high photothermocatalytic activity is derived from the light‐driven thermocatalytic CRM. A novel photoactivation is found to substantially promote the light‐driven thermocatalytic CRM due to the apparent activation energy being considerably reduced upon illumination. It is found that the Ni/Co molar ratio in the NiCo/Co‐Al2O3 samples has an important effect on the photothermocatalytic durability. The samples of Ni1.60Co/Co‐Al2O3 and Ni1.86Co/Co‐Al2O3 with a higher Ni/Co molar ratio demonstrate excellent photothermocatalytic durability, while the Ni0.38Co/Co‐Al2O3 with a lower Ni/Co molar ratio has less durability. This is attributed to carbon deposition rate being significantly reduced on Ni1.60Co/Co‐Al2O3 and Ni1.86Co/Co‐Al2O3 as compared to its single metal counterparts.

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“…Recently, Li's group developed a new composite catalyst comprising atomic MgO layers over Pt supported by Zn‐doped CeO 2 , which promoted the production of syngas via photothermal catalytic CRM. [ 143 ] This catalyst showed outstanding activity for the reaction, with the formation rate of CO and H 2 reaching 516 and 356 mmol g −1 h −1 under 30 suns at 600 °C (Figure 14c,d). This report provided a new photothermal catalytic process to convert CH 4 and CO 2 into high‐value chemicals…”

Section: Photocatalytic Conversion Of Methanementioning

confidence: 99%

Photocatalytic and Thermocatalytic Conversion of Methane

et al. 2021

Solar RRL

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Methane, a high‐quality fuel and important chemical raw material, is widely used in industrial production and life applications. However, the utilization and conversion rates of methane are low because methane is a very stable hydrocarbon gas. At present, the main industrial route of methane conversion involves thermocatalysis technology operating at high temperature. However, this approach has the disadvantages of high energy consumption, high equipment requirements, and high reaction temperature, resulting in shortened catalyst lifetime. Therefore, there is an urgent need to develop a new technology that can effectively utilize and transform methane under mild conditions to obtain the target products. As a kind of clean and renewable energy, solar energy has attracted extensive attention, and research on the effective conversion of methane by solar energy has become an important field. Herein, the recent achievements of solar energy in promoting or driving the catalytic conversion of methane are reviewed. The selection and design of photocatalysts used in different photocatalytic methane conversion reactions are focused on, which may provide important guidance for future research on this process. The prospects and challenges of photocatalytic methane conversion are also discussed.

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Integrating photocatalysis and thermocatalysis to enable efficient CO2 reforming of methane on Pt supported CeO2 with Zn doping and atomic layer deposited MgO overcoating

Cited by 137 publications

References 52 publications

Photocatalytic Methane Reforming: Recent Advances

Photocatalytic Methane Reforming: Recent Advances

Formation of NiCo Alloy Nanoparticles on Co Doped Al₂O₃ Leads to High Fuel Production Rate, Large Light‐to‐Fuel Efficiency, and Excellent Durability for Photothermocatalytic CO₂ Reduction

Photocatalytic and Thermocatalytic Conversion of Methane

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Integrating photocatalysis and thermocatalysis to enable efficient CO2 reforming of methane on Pt supported CeO2 with Zn doping and atomic layer deposited MgO overcoating

Cited by 137 publications

References 52 publications

Photocatalytic Methane Reforming: Recent Advances

Photocatalytic Methane Reforming: Recent Advances

Formation of NiCo Alloy Nanoparticles on Co Doped Al2O3 Leads to High Fuel Production Rate, Large Light‐to‐Fuel Efficiency, and Excellent Durability for Photothermocatalytic CO2 Reduction

Photocatalytic and Thermocatalytic Conversion of Methane

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Resources

About

Formation of NiCo Alloy Nanoparticles on Co Doped Al₂O₃ Leads to High Fuel Production Rate, Large Light‐to‐Fuel Efficiency, and Excellent Durability for Photothermocatalytic CO₂ Reduction