Pd nanoparticles immobilized on aniline-functionalized MXene as an effective catalyst for hydrogen production from formic acid

Liu, Tong; Zhang, Zongji; Yan, Ling; Zhang, Zhibin; Zhang, Yi; Yin, Yansheng

doi:10.1016/j.ijhydene.2021.07.164

Cited by 28 publications

(10 citation statements)

References 58 publications

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“…Ti 3 C 2 T x MXene has a special accordion lamellar structure with active functional groups (O, OH, and F) on its surface and edges 1–4 . The unique lamellar structures with active groups endow Ti 3 C 2 T x MXene with good hydrophilicity, high electrical conductivity, and tunability, which in turn have been widely used in the fields of energy storage, 5–8 catalysis, 9–11 and composites 12–14 . However, the actual properties of Ti 3 C 2 T x MXene are affected by their morphology (stacked bundles compared to single/few sheets) and active functional groups because of the strong van der Waals forces between layers, Ti 3 C 2 T x MXene has a strong tendency to agglomerate, which limits its application in polymers, composites, supercapacitors, and electrode materials 15 .…”

Section: Introductionmentioning

confidence: 99%

Ti₃C₂T_x MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites

Cheng,

Xuan,

Tian

et al. 2023

Polymer Composites

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Ti3C2Tx MXene were modified by 3‐methacryloxypropyltrimethoxy silane (MPTS) and melamine quaternary ammonium salt (MG). The modification mechanism of MPTS and MG with Ti3C2Tx and the regulation of their surface and interfacial properties were confirmed through a series of tests. Ti3C2Tx@MPTS obtained by hydrolysis and hydroxyl co‐polycondensation had a hydrophobic surface and exhibits good dispersion stability. Ti3C2Tx@MG had a strong hydrophilic surface under the dual action of hydrogen bonding and electrostatic assembly, resulting in its surface charge changed from negative to positive. Furthermore, the morphologies of Ti3C2Tx@MPTS and Ti3C2Tx@MG were quite different. Compared with Ti3C2Tx MXene, Ti3C2Tx@MPTS still presents a multi‐layer structure, while Ti3C2Tx@MG shows a stripped‐off layer/single‐layer/partially collapse pattern. This is due to the fact that MPTS mainly modifies Ti3C2Tx MXene by coating, while MG is based on intercalation effect. The two modifiers modify Ti3C2Tx MXene with different effects, endow Ti3C2Tx MXene with different surface and interfacial properties, and then stabilize in the polymer matrix, supercapacitors and electrode materials in different ways.Highlights The hydrophilic and hydrophobic Ti3C2Tx is realized by MG and MPTS. Layered morphology of Ti3C2Tx was changed with the introduction of MPTS and MG. The electronegativity of Ti3C2Tx was changed by the introduction of MPTS and MG.

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Section: Introductionmentioning

confidence: 99%

Ti₃C₂T_x MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites

Cheng,

Xuan,

Tian

et al. 2023

Polymer Composites

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“…In this way, the activation energy (E a ) of Pd 9.2 /C−N catalyst is lower than that of the reported values of formic acid dehydrogenation reaction. 18,27,29,36 The corresponding TOF values were 766, 997, 1297, and 2593 h −1 . The TOF values are relatively high in the dehydrogenation reaction of formic acid at low concentrations (0.37 M).…”

Section: ■ Results and Discussionmentioning

confidence: 98%

Efficient Dehydrogenation of Formic Acid at Room Temperature Using a Pd/Chitosan-Derived Nitrogen-Doped Carbon Catalyst: Synthesis, Characterization, and Kinetic Study

Geng,

Johnravindar,

Xue

et al. 2023

Ind. Eng. Chem. Res.

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Formic acid (FA) can serve as a hydrogen carrier and is easy to store and transport. However, the decomposition of FA requires the use of a catalyst to accelerate the reaction rate and improve the hydrogen yield, which is of great significance for promoting the development of hydrogen energy technology and achieving sustainable development goals. Herein, chitosan-derived nitrogen-doped biochar-supporting palladium nanoparticles were synthesized and used as catalysts for formic acid dehydrogenation, showing excellent catalytic performance. The initial TOF of the Pd 9.2 /C−N catalyst reached 615 mol H 2 mol Pd −1 h −1 and the activation energy was 39.15 kJ mol −1 . The good catalytic performance of the catalyst was attributed to the well-distributed ultrafine palladium nanoparticles with a size of 2.2−2.6 nm and proper metal-carrier interaction, which enhanced the capability of the palladium nanoparticles in the cleavage of the C−H bond of FA. Parameters, such as palladium loading and reaction time, were investigated along with an improved and comprehensive kinetic study, which provides new insights into the field of FA dehydrogenation.

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“…7b, and the calculated apparent activation energy ( E a ) is around 29.7 kJ mol −1 , which is lower than the earlier results for FA decomposition. 63–65…”

Section: Resultsmentioning

confidence: 99%

“…7b, and the calculated apparent activation energy (E a ) is around 29.7 kJ mol À1 , which is lower than the earlier results for FA decomposition. [63][64][65] The durability of the Pd/CN-U 1 W 5 catalyst was tested (Fig. S4, ESI †).…”

Section: Catalytic Activitymentioning

confidence: 99%

Highly dispersed Pd nanoparticles anchored on carbon nitride for hydrogen production from formic acid

Deng¹,

Qian²,

Zhang³

et al. 2023

New J. Chem.

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Pd nanoparticles immobilized on aniline-functionalized MXene as an effective catalyst for hydrogen production from formic acid

Cited by 28 publications

References 58 publications

Ti₃C₂T_x MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites

Ti₃C₂T_x MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites

Efficient Dehydrogenation of Formic Acid at Room Temperature Using a Pd/Chitosan-Derived Nitrogen-Doped Carbon Catalyst: Synthesis, Characterization, and Kinetic Study

Highly dispersed Pd nanoparticles anchored on carbon nitride for hydrogen production from formic acid

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Pd nanoparticles immobilized on aniline-functionalized MXene as an effective catalyst for hydrogen production from formic acid

Cited by 28 publications

References 58 publications

Ti3C2Tx MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites

Ti3C2Tx MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites

Efficient Dehydrogenation of Formic Acid at Room Temperature Using a Pd/Chitosan-Derived Nitrogen-Doped Carbon Catalyst: Synthesis, Characterization, and Kinetic Study

Highly dispersed Pd nanoparticles anchored on carbon nitride for hydrogen production from formic acid

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Ti₃C₂T_x MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites

Ti₃C₂T_x MXene modification using silicane or quaternary ammonium salt via covalent bonding or interaction for high‐performance composites