Molecularly Rigid Microporous Polyamine Captures and Stabilizes Conducting Platinum Nanoparticle Networks

He, Daping1; He, Dong Sheng3; Yang, Jinlong4; Low, Ze-Xian2; Malpass-Evans, Richard5; Carta, Mariolino5; McKeown, Neil B.5; Marken, Frank1

2016-08-31

10.1021/acsami.6b04144

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

A molecularly rigid polyamine based on a polymer of intrinsic microporosity (PIM-EA-TB) is shown to capture and stabilize platinum nanoparticles during colloid synthesis in the rigid framework. Stabilization here refers to avoiding aggregation without loss of surface reactivity. In the resulting rigid framework with embedded platinum nano particles, the volume ratio of platinum to PIM-EA-TB in starting materials is varied systematically from approximately 1.0 to 0.1 with the resulting platinum nanoparticle diameter varying from approximately 4.2 to 3.1 nm, respectively. Elemental analysis suggests that only a fraction of the polymer is "captured" to give nanocomposites rich in platinum. A transition occurs from electrically conducting and electrochemically active (with shorter average interparticle distance) to, nonconducting and only partially electrochemically active (with longer average interparticle,distance) polymer-platinum composites. The Conducting nanoparticle network in the porous rigid macromolecular framework could be beneficial in electrocatalysis and in sensing-applications.

tunneling electrocatalysis fuel cells membrane stabilization percolation

SCI ; EI

英语

其他

Leverhulme Foundation[RPG-2014-308]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000382514100071

AMER CHEMICAL SOC

20163602782411

Catalysis ; Electrocatalysis ; Electron tunneling ; Fuel cells ; Membranes ; Microporosity ; Nanoparticles ; Percolation (solid state) ; Polymers ; Solvents ; Stabilization ; Synthesis (chemical)

Precious Metals:547.1 ; Fuel Cells:702.2 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Polymeric Materials:815.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933 ; Materials Science:951

Web of Science

1.Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England
2.Univ Bath, Ctr Adv Separat Engn, Dept Chem Engn, Bath BA2 7AY, Avon, England
3.South Univ Sci & Technol China, Mat Characterizat & Preparat Ctr, Shenzhen 518055, Peoples R China
4.Peking Univ, Sch Adv Mat, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China
5.Univ Edinburgh, Sch Chem, David Brewster Rd, Edinburgh EH9 3FJ, Midlothian, Scotland

He, Daping,He, Dong Sheng,Yang, Jinlong,et al. Molecularly Rigid Microporous Polyamine Captures and Stabilizes Conducting Platinum Nanoparticle Networks[J]. ACS Applied Materials & Interfaces,2016,8(34):22425-22430.

He, Daping.,He, Dong Sheng.,Yang, Jinlong.,Low, Ze-Xian.,Malpass-Evans, Richard.,...&Marken, Frank.(2016).Molecularly Rigid Microporous Polyamine Captures and Stabilizes Conducting Platinum Nanoparticle Networks.ACS Applied Materials & Interfaces,8(34),22425-22430.

He, Daping,et al."Molecularly Rigid Microporous Polyamine Captures and Stabilizes Conducting Platinum Nanoparticle Networks".ACS Applied Materials & Interfaces 8.34(2016):22425-22430.