Citation: Jinhua Zhang, Yuanbin She. Unveiling the decomposition mechanism of formic acid on Pd/WC(0001) surface by using density function theory[J]. Chinese Journal of Catalysis, ;2020, 41(3): 415-425. doi: S1872-2067(19)63463-7 shu

Unveiling the decomposition mechanism of formic acid on Pd/WC(0001) surface by using density function theory

Jinhua Zhang ^a,b, ,
Yuanbin She ^a

a College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China;
b School of Materials and Environmental Engineering, Chizhou University, Chizhou 247000, Anhui, China

Received Date: 18 June 2019
Revised Date: 26 July 2019

Fund Project: This work was supported by the National Natural Science Foundation of China (21776259) and Key Laboratory of Micro-Nano Powder and Advanced Energy Materials of Anhui Higher Education Institutes, Chizhou University.

In pursuit of low-cost direct formic acid fuel cells, tungsten carbide (WC) supported Pd catalyst is considered as an ideal candidate for efficient decomposition of formic acid due to low Pd utilization and excellent performance. Herein, different adsorption configurations and active sites of the intermediates, involved in the HCOOH decomposition, on WC(0001)-supported Pd monolayer (Pd/WC(0001)) surface investigated by using density functional theory. The results reveal that trans-HCOOH, HCOO, cis-COOH, trans-COOH, HCO, CO, H₂O, OH and H exhibit chemisorption on Pd/WC(0001) surface, whereas cis-HCOOH and CO₂ exhibit weak interactions with Pd/WC(0001) surface. In addition, the minimum energy pathways of HCOOH decomposition are analyzed to generate CO and CO₂ due to the fracture of C-H, H-O and C-O bonds. The adsorbed HCOOH, HCOO, mHCOO, cis-COOH and trans-COOH configurations exhibit dissociation rather than desorption. CO formation occurs through the decomposition of cis-COOH, trans-COOH and HCO, whereas the CO₂ formation happens due to the decomposition of HCOO. It is found that the most favorable pathway for HCOOH decomposition on Pd/WC(0001) surface is HCOOH→HCOO→CO₂, where the formation of CO₂ from HCOO dehydrogenation determines the reaction rate. Overall, CO₂ is the most dominant product of HCOOH decomposition on Pd/WC(0001) surface. The presence of WC, as monolayer Pd carrier, does not alter the catalytic behavior of Pd and significantly reduces the Pd utilization.
- Density functional theory,
- Formic acid,
- Direct formic acid fuel cells,
- WC(0001)-supported Pd monolayer,
- Decomposition mechanism
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
30. [30]
31. [31]
32. [32]
33. [33]
34. [34]
35. [35]
36. [36]
37. [37]
38. [38]
39. [39]
40. [40]
41. [41]
42. [42]
43. [43]
44. [44]
45. [45]
46. [46]
47. [47]
48. [48]
49. [49]
50. [50]
51. [51]
52. [52]
53. [53]
54. [54]
55. [55]
56. [56]
57. [57]
1. [1]
  Hao XU , Ruopeng LI , Peixia YANG , Anmin LIU , Jie BAI . Regulation mechanism of halogen axial coordination atoms on the oxygen reduction activity of Fe-N₄ site: A density functional theory study. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 695-701. doi: 10.11862/CJIC.20240302
2. [2]
  Weina Wang , Lixia Feng , Fengyi Liu , Wenliang Wang . Computational Chemistry Experiments in Facilitating the Study of Organic Reaction Mechanism: A Case Study of Electrophilic Addition of HCl to Asymmetric Alkenes. University Chemistry, 2025, 40(3): 206-214. doi: 10.12461/PKU.DXHX202407022
3. [3]
  Kaifu Zhang , Shan Gao , Bin Yang . Application of Theoretical Calculation with Fun Practice in Raman Spectroscopy Experimental Teaching. University Chemistry, 2025, 40(3): 62-67. doi: 10.12461/PKU.DXHX202404045
4. [4]
  Jie ZHAO , Sen LIU , Qikang YIN , Xiaoqing LU , Zhaojie WANG . Theoretical calculation of selective adsorption and separation of CO₂ by alkali metal modified naphthalene/naphthalenediyne. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 515-522. doi: 10.11862/CJIC.20230385
5. [5]
  Jie ZHAO , Huili ZHANG , Xiaoqing LU , Zhaojie WANG . Theoretical calculations of CO₂ capture and separation by functional groups modified 2D covalent organic framework. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 275-283. doi: 10.11862/CJIC.20240213
6. [6]
  Xiaochen Zhang , Fei Yu , Jie Ma . 多角度数理模拟在电容去离子中的前沿应用. Acta Physico-Chimica Sinica, 2024, 40(11): 2311026-. doi: 10.3866/PKU.WHXB202311026
7. [7]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395
8. [8]
  Meifeng Zhu , Jin Cheng , Kai Huang , Cheng Lian , Shouhong Xu , Honglai Liu . Classical Density Functional Theory for Understanding Electrochemical Interface. University Chemistry, 2025, 40(3): 148-152. doi: 10.12461/PKU.DXHX202405166
9. [9]
  Ling Liu , Haibin Wang , Genrong Qiang . Curriculum Ideological and Political Design for the Comprehensive Preparation Experiment of Ethyl Benzoate Synthesized from Benzyl Alcohol. University Chemistry, 2024, 39(2): 94-98. doi: 10.3866/PKU.DXHX202304080
10. [10]
  Yi DING , Peiyu LIAO , Jianhua JIA , Mingliang TONG . Structure and photoluminescence modulation of silver(Ⅰ)-tetra(pyridin-4-yl)ethene metal-organic frameworks by substituted benzoates. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 141-148. doi: 10.11862/CJIC.20240393
11. [11]
  Hexing SONG , Zan SUN . Synthesis, crystal structure, Hirshfeld surface analysis, and fluorescent sensing for Fe³⁺ of an Mn(Ⅱ) complex based on 1-naphthalic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 885-892. doi: 10.11862/CJIC.20240402
12. [12]
  Jianding LI , Junyang FENG , Huimin REN , Gang LI . Proton conductive properties of a Hf(Ⅳ)-based metal-organic framework built by 2,5-dibromophenyl-4,6-dicarboxylic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1094-1100. doi: 10.11862/CJIC.20240464
13. [13]
  Maitri Bhattacharjee , Rekha Boruah Smriti , R. N. Dutta Purkayastha , Waldemar Maniukiewicz , Shubhamoy Chowdhury , Debasish Maiti , Tamanna Akhtar . Synthesis, structural characterization, bio-activity, and density functional theory calculation on Cu(Ⅱ) complexes with hydrazone-based Schiff base ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1409-1422. doi: 10.11862/CJIC.20240007
14. [14]
  Zhengkun QIN , Zicong PAN , Hui TIAN , Wanyi ZHANG , Mingxing SONG . A series of iridium(Ⅲ) complexes with fluorophenyl isoquinoline ligand and low-efficiency roll-off properties: A density functional theory study. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1235-1244. doi: 10.11862/CJIC.20240429
15. [15]
  Fengqiao Bi , Jun Wang , Dongmei Yang . Specialized Experimental Design for Chemistry Majors in the Context of “Dual Carbon”: Taking the Assembly and Performance Evaluation of Zinc-Air Fuel Batteries as an Example. University Chemistry, 2024, 39(4): 198-205. doi: 10.3866/PKU.DXHX202311069
16. [16]
  Dongdong Yao , JunweiGu , Yi Yan , Junliang Zhang , Yaping Zheng . Teaching Phase Separation Mechanism in Polymer Blends Using Process Representation Teaching Method: A Teaching Design for Challenging Theoretical Concepts in “Polymer Structure and Properties” Course. University Chemistry, 2025, 40(4): 131-137. doi: 10.12461/PKU.DXHX202408125
17. [17]
  Xueting Cao , Shuangshuang Cha , Ming Gong . 电催化反应中的界面双电层：理论、表征与应用. Acta Physico-Chimica Sinica, 2025, 41(5): 100041-. doi: 10.1016/j.actphy.2024.100041
18. [18]
  Jia Yao , Xiaogang Peng . Theory of Macroscopic Molecular Systems: Theoretical Framework of the Physical Chemistry Course in the Chemistry “101 Plan”. University Chemistry, 2024, 39(10): 27-37. doi: 10.12461/PKU.DXHX202408117
19. [19]
  Fei Xie , Chengcheng Yuan , Haiyan Tan , Alireza Z. Moshfegh , Bicheng Zhu , Jiaguo Yu . d带中心调控过渡金属单原子负载COF吸附O₂的理论计算研究. Acta Physico-Chimica Sinica, 2024, 40(11): 2407013-. doi: 10.3866/PKU.WHXB202407013
20. [20]
  Chi Zhang , Yi Xu , Xiaopeng Guo , Zian Jie , Ling Li . 五彩斑斓的秘密——物质显色机理. University Chemistry, 2025, 40(6): 266-275. doi: 10.12461/PKU.DXHX202407061

Get Citation

PDF

XML

Metrics

PDF Downloads(20)
Abstract views(1350)
HTML views(221)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142