Nitrogen precursor-mediated construction of N-doped hierarchically porous carbon-supported Pd catalysts with controllable morphology and composition

Pu, Chun; Zhang, Jie; Chang, Ganggang; Xiao, Yueyang; Ma, Xiaochen; Wu, Jian; Luo, Tingting; Huang, Kexin; Ke, Shan‐Chao; Li, Jiaxin

doi:10.1016/j.carbon.2019.12.058

Cited by 57 publications

(33 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hierarchically porous metal‐organic frameworks (HP‐MOFs) have become a rapidly evolving field of current interest, and their hierarchy on porosity is crucial for a high‐performance design in all kinds of applications. [ 1–7 ] Currently, a large series of synthesis methods have been developed, for example, ligand‐extension, [ 8–11 ] template‐assistant, [ 12–17 ] and defect‐formation strategy. [ 18–23 ] One great challenge is customization synthesis of the mesopore size (2–50 nm), which is critical to selective catalysis or adsorption.…”

Section: Introductionmentioning

confidence: 99%

Near‐Linear Controllable Synthesis of Mesoporosity in Hierarchical UiO‐66 by Template‐Free Nucleation‐Competition

Chang

et al. 2021

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Hierarchies design of porosity in metal-organic frameworks (MOFs) has gained significant interest in recent years, and customization of mesoporous sizes in MOFs is still quite challenging. Herein, a template-free method by nucleation-competition has been developed to realize a near-linear control of the mesopore sizes (3-13 nm) in the hierarchical MOF UiO-66(Hf ). High selectivity of enzyme adsorption, high activity of bulky-molecular catalysis, high stability of mesostructure, and extension to other MOFs further prove the success in the potential customization synthesis and applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Near‐Linear Controllable Synthesis of Mesoporosity in Hierarchical UiO‐66 by Template‐Free Nucleation‐Competition

Chang

et al. 2021

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, we envision that this Co, N-codoped carbon material can be a potential catalyst support for metal nanoparticles for heterogeneous catalysis because of electron transfer between cobalt and metal nanoparticles. [38] In this work, the cobalt-embedded porous carbon materials with polyhedral structure (CoPCPs), cobalt-embedded nitrogen doped porous carbon (Co-NPC) and nitrogen-doped porous carbon (NPC) are successfully synthesized by one-step carbonization of ZIF-8@ZIF-67, ZIF-67 and ZIF-8, respectively. Using CoPCP-1000 as support, Ru 1 /CoPCP-1000 catalysts with a hollow structure are prepared by in situ reduction method.…”

Section: Introductionmentioning

confidence: 99%

Ruthenium Supported on Cobalt‐Embedded Porous Carbon with Hollow Structure as Efficient Catalysts toward Ammonia‐Borane Hydrolysis for Hydrogen Production

Cui

Qiu

et al. 2021

Advanced Sustainable Systems

View full text Add to dashboard Cite

Catalysts with high activity play an indispensable role in ammonia‐borane (AB) hydrolysis for hydrogen production. Supported catalysts are always used because proper support can effectively prevent metal particle agglomeration. In addition, the interaction between support and metal species can further enhance the catalytic activity. Herein, cobalt‐embedded porous carbon with polyhedral structure (CoPCP) is successfully synthesized by one‐step carbonization of a core‐shell structured ZIF‐8@ZIF‐67 composite. As support, Ru nanoparticles are loaded on CoPCP by in situ reduction to obtain Ru/CoPCP catalysts with a special hollow structure, effectively preventing Ru nanoparticles from agglomeration. Moreover, the existence of synergistic effect between Co metal and Ru nanoparticles in Ru/CoPCP catalyst is confirmed by a series of well‐designed control experiments. Both these factors endow the Ru/CoPCP catalyst with high activity and decent stability toward AB hydrolysis. A low activation energy (Ea = 31.25 kJ mol–1) and a high catalytic performance (turnover frequency = 243.4 molH2 molRu–1 min–1) are simultaneously achieved for Ru1/CoPCP‐1000 even with a low amount of Ru (1.88 wt%). This work represents a promising method to prepare the high‐activity catalysts with low content of noble metals for diverse applications in heterogeneous catalysis.

show abstract

“…Nitrogen atoms are introduced into carbon supports by reacting of nitrogen precursors with carbon materials [70b] . Among them, nitrogen atoms from urea or dicyandiamide are present in the form of amino groups, which will make it easy for introduction of nitrogen into surface of carbon materials during carbonization [75] . Moreover, nitrogen‐containing precursors can also be directly used as carbon sources and nitrogen sources to in‐situ synthesize nitrogen‐containing carbon materials [76] .…”

Section: Surface Functionalization Of Carbon Materialsmentioning

confidence: 99%

“…Catalytic activity and product selectivity obtained from HDO of biomass at different reaction conditions due to the effects of surface nitrogen‐containing functional groups is illustrated in Table 5. Introduction of nitrogen‐containing functional groups into carbon materials decreases particle size and enhances dispersion of metal NPs and interaction between supports and active sites (Table 5, entry 1) [49,74f,75] . For instance, electron‐donating effect of N on carbon supports resulted in formation of Mo 2 C with small particle size and change of local electronic structure of carbon supports, which lead to preferential growth of metal NPs and improvement of Mo dispersion (Figure 8a) [74b] .…”

Section: Surface Functionalization Of Carbon Materialsmentioning

confidence: 99%

Progress in Effects of Microenvironment of Carbon‐based Catalysts on Hydrodeoxygenation of Biomass

2020

ChemCatChem

View full text Add to dashboard Cite

Carbon‐based catalysts have made significant progress in hydrodeoxygenation (HDO) of biomass. Since the HDO reaction usually carried on surface of catalyst, the interaction of reactant with catalyst is closely related to the surface microenvironment of catalyst, which may further have an impact on catalytic performance. This review will discuss the relationship between surface microenvironment of carbon support and catalytic performance and mechanism of HDO reaction during biomass upgrading. We will focus on the microenvironment effect associated with HDO reaction in carbon‐based catalysts including effects of surface microstructure and surface functionalization of carbon supports on preparation of heterogeneous catalysts and catalytic performance, respectively. Study of microenvironment may provide guidance for further development of efficient carbon‐based catalysts in biomass resource utilization.

show abstract

Nitrogen precursor-mediated construction of N-doped hierarchically porous carbon-supported Pd catalysts with controllable morphology and composition

Cited by 57 publications

References 63 publications

Near‐Linear Controllable Synthesis of Mesoporosity in Hierarchical UiO‐66 by Template‐Free Nucleation‐Competition

Near‐Linear Controllable Synthesis of Mesoporosity in Hierarchical UiO‐66 by Template‐Free Nucleation‐Competition

Ruthenium Supported on Cobalt‐Embedded Porous Carbon with Hollow Structure as Efficient Catalysts toward Ammonia‐Borane Hydrolysis for Hydrogen Production

Progress in Effects of Microenvironment of Carbon‐based Catalysts on Hydrodeoxygenation of Biomass

Contact Info

Product

Resources

About