A pH gradient at electrode-electrolyte interface for tandem reactions.

Kaiyue Ji, Yuanbo Liu, Kejian Kong, Zhihong Chau, Xiang Liu, Bo-Jun Yuan, Xi Wang, Xingjian Xu, Haohong Duan

Abstract read

In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Kaiyue JiDepartment of Chemistry, Tsinghua University, Beijing, China.

Yuanbo LiuDepartment of Chemistry, Tsinghua University, Beijing, China.ORCID http://orcid.org/0009-0005-8684-6211

Kejian KongDepartment of Chemistry, Tsinghua University, Beijing, China.

Zhihong ChauDepartment of Chemistry, Tsinghua University, Beijing, China.

Xiang LiuDepartment of Chemistry, Tsinghua University, Beijing, China.ORCID http://orcid.org/0009-0003-2233-7499

Bo-Jun YuanDepartment of Chemistry, Tsinghua University, Beijing, China.

Xi WangDepartment of Chemistry, Tsinghua University, Beijing, China.

Xingjian XuDepartment of Chemistry, Tsinghua University, Beijing, China.

Haohong DuanDepartment of Chemistry, Tsinghua University, Beijing, China. hhduan@mail.tsinghua.edu.cn.ORCID http://orcid.org/0000-0003-3210-0068

Funding

National Natural Science Foundation of China (National Science Foundation of China) 22325805

6 · The paper itself

Abstract

Tandem reactions enable the sequential synthesis of value-added chemicals, as exemplified by the conversion of biomass-derived levulinic acid (LA) to γ-valerolactone (GVL) via hydrogenation and subsequent lactonization, with 4-hydroxyvaleric acid (HVA) as the intermediate. However, achieving such tandem electrocatalysis in a single electrolyzer is challenging because the two steps require distinct pH conditions: the former favors neutral or alkaline media, whereas the latter requires a strongly acidic medium. Here we create a pH gradient at the electrode-electrolyte interface by modifying a Pb electrocatalyst with cetyltrimethylammonium bromide (CTAB). The modified electrocatalyst shows >80% GVL selectivity and >50% Faradaic efficiency (FE) over 50-200 mA cm

Identifiers

PMID42091880

DOI10.1038/s41467-026-72802-0

PMCPMC13358119

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.