Embedding high loading and uniform Ni nanoparticles into silicalite-1 zeolite for dry reforming of methane

Liu, Yang; Chen, Yong; Zhang, Xiao; Zhang, Lejian; Wang, Meng; Chen, Bingbing; Diao, Yanan; Li, Yilong; Xiao, Dequan; Wang, Xinping; Ma, Ding; Shi, Chuan

doi:10.1016/j.apcatb.2022.121202

Cited by 75 publications

(33 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peak of Ni 0 species in PMS-22 positively shifted and the peak of Ni II slightly negatively shifted, which confirmed the strong interaction between Ni 0 and Ni II at the heterointerfaces . A strong interaction at the Ni 0 /Ni II heterointerfaces could prompt electron transfer from metallic nickel to nickel silicate, which would decrease the electron density of metallic nickel and thus prevent metal agglomeration …”

Section: Resultsmentioning

confidence: 69%

“…34 A strong interaction at the Ni 0 /Ni II heterointerfaces could prompt electron transfer from metallic nickel to nickel silicate, which would decrease the electron density of metallic nickel and thus prevent metal agglomeration. 35 The surface acidity of the PMS materials was investigated by NH 3 temperature-programmed desorption (NH 3 -TPD) spectroscopy (Figure 3e). The NH 3 -TPD spectrum of the calcinated PMS-22 precursor shows only one NH 3 desorption peak in the low-temperature range, corresponding to the weak acid sites.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Stabilization of Ni⁰/Ni^II Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

Zhang

Shi

2022

Inorg. Chem.

View full text Add to dashboard Cite

Heterostructural nanomaterials demonstrate great potential to replace noble metal-based catalysts because heterojunctions could induce relocalization of electrons and facilitate the migration of electrons and charge carriers at the heterostructural boundary between electron-rich and electrondeficient metal sites; however, the instability of heterojunctions greatly hinders their practical applications. We report herein an effective strategy for the fabrication and stabilization of Ni 0 /Ni II heterojunctions inside a porous metal silicate (PMS) material PMS-22 using a nickel coordination complex as the bifunctional template. The synergistic activity between metallic nickel and nickel silicate in PMS-22 highly boosts the catalytic activity in the hydrogenation of phenol, which could activate phenol at a very low temperature of 50 °C. Most importantly, PMS-22 demonstrates robust stability in catalysis, attributed to the strong interaction and charge transfer between metallic Ni and nickel silicate at the heterointerfaces inside the confined pores. Therefore, this work paves a new pathway to improve the stability and activity of heterostructural nanomaterials for catalytic applications.

show abstract

Section: Resultsmentioning

confidence: 69%

Section: ■ Results and Discussionmentioning

confidence: 99%

Stabilization of Ni⁰/Ni^II Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

Zhang

Shi

2022

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…Ni NPs embedded into zeolitic materials, such as silicalite, have been widely accepted as a promising structure for Ni confinement, but over 20 wt% Ni loading decreases the dispersal and encapsulation. Recently, Liu et al have developed a controlled “dissolution–fractional crystallization” method of confining high loading and uniform Ni NPs into the hollow silicalite-1 (S-1) shell [ 115 ]. Active species of Ni as core has maintained its particle size to ca.…”

Section: Co 2 Conversion Processes and Productsmentioning

confidence: 99%

Recent Application of Core-Shell Nanostructured Catalysts for CO2 Thermocatalytic Conversion Processes

et al. 2022

View full text Add to dashboard Cite

Carbon-intensive industries must deem carbon capture, utilization, and storage initiatives to mitigate rising CO2 concentration by 2050. A 45% national reduction in CO2 emissions has been projected by government to realize net zero carbon in 2030. CO2 utilization is the prominent solution to curb not only CO2 but other greenhouse gases, such as methane, on a large scale. For decades, thermocatalytic CO2 conversions into clean fuels and specialty chemicals through catalytic CO2 hydrogenation and CO2 reforming using green hydrogen and pure methane sources have been under scrutiny. However, these processes are still immature for industrial applications because of their thermodynamic and kinetic limitations caused by rapid catalyst deactivation due to fouling, sintering, and poisoning under harsh conditions. Therefore, a key research focus on thermocatalytic CO2 conversion is to develop high-performance and selective catalysts even at low temperatures while suppressing side reactions. Conventional catalysts suffer from a lack of precise structural control, which is detrimental toward selectivity, activity, and stability. Core-shell is a recently emerged nanomaterial that offers confinement effect to preserve multiple functionalities from sintering in CO2 conversions. Substantial progress has been achieved to implement core-shell in direct or indirect thermocatalytic CO2 reactions, such as methanation, methanol synthesis, Fischer–Tropsch synthesis, and dry reforming methane. However, cost-effective and simple synthesis methods and feasible mechanisms on core-shell catalysts remain to be developed. This review provides insights into recent works on core-shell catalysts for thermocatalytic CO2 conversion into syngas and fuels

show abstract

“…Several strategies have been developed to solve these issues. For example, Liu et al 31 developed a unique synthesis strategy of "dissolution−recrystallization" to embed Ni NPs into silicalite-1 (S-1) zeolite to anchor highly dispersed Ni NPs into S-1 zeolite with a high density of Ni. Compared to the conventional S-1-supported catalyst (15% Ni/S-1), better stability and activity were achieved on the 15% Ni@S-1 catalyst, with a turnover frequency (TOF) of ca.…”

Section: Introductionmentioning

confidence: 99%

H₂ Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development

et al. 2022

Self Cite

View full text Add to dashboard Cite

Hydrogen, with its high energy content and environmental-friendly properties, is considered an effective energy carrier in addition to fossil fuels. Methane reforming represents a major method of hydrogen production, although the applied catalysts often suffer from coke deposition and metal sintering at high operating temperatures. Transition-metal carbides (TMCs), particularly molybdenum carbides (Mo x C), possess features such as Pt-like behaviors, affinity with oxidants such as CO2 and H2O, and a strong metal–support interaction for metal dispersion and stabilization, rendering them great prospective candidates for catalyzing the methane reforming reactions (MRRs). This review focuses on the recent applications and challenges of TMCs in MRRs, with an emphasis on the strategies to improve their performance by (1) engineering the operational conditions, (2) designing a dual M–Mo x C (M = Ni or Co etc.) active site, (3) dispersing M–Mo x C on supports, and (4) generating a M–Mo x C/MoO x C y interface in situ. The present review will provide guidance for the future design of efficient catalysts for H2 production from MRRs.

show abstract

Embedding high loading and uniform Ni nanoparticles into silicalite-1 zeolite for dry reforming of methane

Cited by 75 publications

References 48 publications

Stabilization of Ni⁰/Ni^II Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

Stabilization of Ni⁰/Ni^II Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

Recent Application of Core-Shell Nanostructured Catalysts for CO2 Thermocatalytic Conversion Processes

H₂ Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development

Contact Info

Product

Resources

About

Embedding high loading and uniform Ni nanoparticles into silicalite-1 zeolite for dry reforming of methane

Cited by 75 publications

References 48 publications

Stabilization of Ni0/NiII Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

Stabilization of Ni0/NiII Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

Recent Application of Core-Shell Nanostructured Catalysts for CO2 Thermocatalytic Conversion Processes

H2 Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development

Contact Info

Product

Resources

About

Stabilization of Ni⁰/Ni^II Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

Stabilization of Ni⁰/Ni^II Heterojunctions inside Robust Porous Metal Silicate Materials for High-Performance Catalysis

H₂ Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development