Strategic Design of a WO3/PdOx-Carbon Shell Composite Photocatalyst: Visible Light-Mediated Selective Hydrogenation of 5-Hydroxymethylfurfural

复合数 光催化 碳纤维 材料科学 产量(工程) 羟甲基 化学 氢解 催化作用 糠醇 化学工程 电子顺磁共振 呋喃 光化学 有机化学 复合材料 核磁共振 物理 工程类
作者
Alok Kumar,Rajakumar Ananthakrishnan
出处
期刊:ACS applied energy materials [American Chemical Society]
卷期号:5 (3): 2706-2719 被引量:9
标识
DOI:10.1021/acsaem.1c03065
摘要

The development of visible light-assisted heterogeneous selective hydrogenation by utilizing solvents as a H2 source is a sustainable and energy-saving approach. Here, we have synthesized an efficient WO3/PdOx-carbon shell composite photocatalyst via the solution combustion method (SCM). The catalyst showed excellent activity for 5-hydroxymethylfurfural (HMF) hydrogenation in H2O/MeOH (3:1) under visible light (λ ≥ 420 nm) without the use of a pressurized external hydrogen support. The primary product was identified as 5-bis(hydroxymethyl)furan (BHMF) with a yield of 79.2%, which is regarded as a valuable feedstock for polymer industries. The minor hydrogenolysis product 5-methylfurfuryl alcohol (MFA) was also observed in proton NMR with a yield <20%. Our findings reveal that conversion efficiency (>95%) and selectivity (86.9%) increase drastically along with the pH range of the reaction medium, i.e., 7.5–8.2. The photocatalyst was embedded with both quantum-sized (0.6%) Pd particles (<5 nm) and PdO. After a series of experiments, we found that the uniform dimension (10 nm) of carbon shell benefits the stability of Pd particles (catalytic active site) and enhances charge carrier mobility. The photocatalyst is durable and reusable for up to more than six cycles without any significant loss in its activity. The progress of the reaction and key reactive species (•OH) were systematically investigated by proton NMR kinetic studies and electron paramagnetic resonance (EPR) spectroscopy. The possible reaction pathway was investigated and explored. These studies may contribute to serving as a cost-effective alternative method for a hydrogenating agent at an ambient condition without the use of a pressurized external hydrogen/temperature support under visible light.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
科隆龙完成签到,获得积分10
3秒前
DAYTOY完成签到,获得积分10
5秒前
zx完成签到,获得积分20
6秒前
在水一方应助方法采纳,获得10
6秒前
Ava应助孙成成采纳,获得30
7秒前
凡迪亚比应助lena采纳,获得10
10秒前
11秒前
11秒前
香蕉觅云应助zcy采纳,获得10
13秒前
NexusExplorer应助科研通管家采纳,获得10
14秒前
田様应助科研通管家采纳,获得10
14秒前
未命名应助科研通管家采纳,获得20
14秒前
lant0932应助科研通管家采纳,获得10
14秒前
Lyla应助科研通管家采纳,获得10
14秒前
俏皮诺言发布了新的文献求助10
14秒前
JamesPei应助科研通管家采纳,获得10
15秒前
无花果应助科研通管家采纳,获得10
15秒前
传奇3应助科研通管家采纳,获得10
15秒前
AGuang应助科研通管家采纳,获得10
15秒前
Ava应助科研通管家采纳,获得10
15秒前
大模型应助科研通管家采纳,获得10
15秒前
领导范儿应助科研通管家采纳,获得10
15秒前
桐桐应助科研通管家采纳,获得30
15秒前
逸之狐应助科研通管家采纳,获得20
15秒前
香蕉觅云应助科研通管家采纳,获得10
15秒前
16秒前
20秒前
seal发布了新的文献求助10
22秒前
myduty完成签到 ,获得积分10
22秒前
123完成签到,获得积分10
22秒前
23秒前
23秒前
老实雁蓉完成签到,获得积分10
25秒前
25秒前
Brian发布了新的文献求助10
25秒前
25秒前
25秒前
寒江雪举报起名求助涉嫌违规
27秒前
洞幺拐发布了新的文献求助10
27秒前
27秒前
高分求助中
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Cognitive Neuroscience: The Biology of the Mind (Sixth Edition) 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
Christian Women in Chinese Society: The Anglican Story 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3961083
求助须知:如何正确求助?哪些是违规求助? 3507362
关于积分的说明 11135734
捐赠科研通 3239863
什么是DOI,文献DOI怎么找? 1790434
邀请新用户注册赠送积分活动 872400
科研通“疑难数据库(出版商)”最低求助积分说明 803150