规整形貌Pt/Zn<italic style="font-style: italic">x</italic>Al2-<italic style="font-style: italic">x</italic>O<italic style="font-style: italic">y</italic>催化剂催化甲酸分解制氢性能研究

宋文静; 季伟捷

doi:10.12434/j.issn.2097-2547.20250478

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规整形貌Pt/Zn_xAl₂_-_xO_y催化剂催化甲酸分解制氢性能研究

更新时间：2026-04-27

- 规整形貌Pt/Zn_xAl₂_-_xO_y催化剂催化甲酸分解制氢性能研究
- Study on catalytic performances of regularly shape Pt/Zn_xAl_2-_xO_y catalysts for hydrogen production by formic acid decomposition
- 低碳化学与化工 2026: 1-10.
- 作者机构：
  
  1.中石化南京化工研究院有限公司，江苏南京 210048
  2.南京大学化学化工学院，江苏南京 210023
- 作者简介：
  
  宋文静（1997—），硕士，研究实习员，研究方向为催化剂开发与应用，E-mail：songwenjing1102@163.com。
  季伟捷（1964—），博士，教授，研究方向为催化剂开发与应用，E-mail：jiwj@nju.edu.cn。
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250478
  中图分类号： TK91;O643.3
- 收稿：2025-12-17，
  
  修回：2026-01-28，
  
  网络首发：2026-04-24，
- 稿件说明：
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宋文静,季伟捷.规整形貌Pt/Zn_xAl₂_-_xO_y催化剂催化甲酸分解制氢性能研究[J].低碳化学与化工,

SONG Wenjing,JI Weijie.Study on catalytic performances of regularly shape Pt/Zn_xAl_2-_xO_y catalysts for hydrogen production by formic acid decomposition[J].Low-Carbon Chemistry and Chemical Engineering,
宋文静,季伟捷.规整形貌Pt/Zn_xAl₂_-_xO_y催化剂催化甲酸分解制氢性能研究[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20250478.

SONG Wenjing,JI Weijie.Study on catalytic performances of regularly shape Pt/Zn_xAl_2-_xO_y catalysts for hydrogen production by formic acid decomposition[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20250478.

摘要

甲酸是一种温和的氢能载体，其分解制氢可有效解决氢能储运难题。使用贵金属负载型催化剂是提高甲酸分解制氢反应活性与选择性的有效策略。采用水热法合成了系列Zn掺杂并具有规整形貌（六角片（HP）、堆叠片（SHP））的Al

载体，然后通过沉淀沉积法负载Pt，制备了低Pt含量（

(Pt) = 1.0%）的Pt/Zn

催化剂。利用XRD、SEM和N

物理吸/脱附等方法系统表征了载体及催化剂的晶相结构、微观形貌和织构性质等。通过“形貌-组分”双轨调控策略，探究了催化剂催化甲酸分解制氢性能。结果表明，在200 ℃下，Zn物质的量分数（

(Zn)/

(Al + Zn)）为3%的两种形貌催化剂均表现出最优催化性能，甲酸转化率与H

产率均接近100%。适量Zn掺杂增强了Pt与载体间的电子相互作用，优化了Pt的电子结构；过量Zn则会覆盖活性位点，促进甲酸脱水副反应生成CO。此外，相同条件下，富含(110)晶面的HP形貌催化剂具有更高的H

选择性。本文将为设计低贵金属含量、高选择性的甲酸分解制氢催化剂的设计提供新思路。

Abstract

Formic acid serves as a mild hydrogen energy carrier

and its decomposition for hydrogen production offers a viable solution to hydrogen transportation challenges. Noble metal-supported catalysts represent an effective strategy for enhancing the activity and selectivity of hydrogen production by formic acid decompositio

n. A series of Zn-doped Al

supports with regularly shapes (hexagonal plates (HP)

stacked plates (SHP)) were synthesized by hydrothermal method

followed by Pt loading by precipitation-deposition method. Then

Pt/Zn

catalysts with low Pt loading (

(Pt) = 1.0%) were prepared. The crystalline structures

microstructures

textural properties and other properties of supports and catalysts were comprehensively characterized by methods such as XRD

SEM and N

physical adsorption/desorption. By dual-regulation strategy of “support morphology and composition”

the catalytic performances of catalysts for hydrogen production by formic acid decomposition were studied. The results show that

under 200 ℃

both types of catalysts with Zn mole fraction (

(Zn)/

(Al + Zn)) of about 3% exhibit optimal performances

with formic acid conversion rate and H

yield approaching 100%. Appropriate Zn enhances the electronic interaction between Pt and supports and optimizes the electronic state of Pt. However

excessive Zn doping will cover active sites and promote the dehydration of formic acid to CO. Moreover

under the same conditions

the catalyst with HP morphology rich in (110) crystal planes show higher H

selectivity. This work will provide a new idea for designing low noble-metal-loading and high-selectivity catalysts for hydrogen production by formic acid decomposition.

关键词

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references

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规整形貌Pt/ZnxAl2-xOy催化剂催化甲酸分解制氢性能研究

Study on catalytic performances of regularly shape Pt/ZnxAl2-xOy catalysts for hydrogen production by formic acid decomposition

DOI：10.12434/j.issn.2097-2547.20250478

摘要

Abstract

关键词

Keywords

references

规整形貌Pt/Zn_xAl₂_-_xO_y催化剂催化甲酸分解制氢性能研究

Study on catalytic performances of regularly shape Pt/Zn_xAl_2-_xO_y catalysts for hydrogen production by formic acid decomposition